Supplementary Table: Rehabilitation and COVID-19: update of the rapid living systematic review by Cochrane Rehabilitation Field as of August 31st , 2021
Author DOI Year Country Experimental Dates Aim of the study Study Design Type of rehabilitation service Research Question LFRI Covid Phases Population N° of participants Clinical presentation Intervention Comparator Outcomes Adverse events Diagnostic test Sensitivity Specificity Types of validity Attributes of reliability Main findings
Acar RD et al. 10.1088/1752-7163/ac22bb 2021 Turkey N/A To evaluate the cardiopulmonary function and impairment of exercise endurance in patients with COVID-19 after 3 months of the second wave of the pandemic Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 51 N/A N/A N/A Cardiopulmonary exercise stress test This study reports about 51 COVID-19 patients, mostly healthcare providers,(median age was 42 [25–71] years, and 45% were female, 33% had severe COVID-19 while the remaining 67% had moderate COVID-19, percentage of hospitalisation was 57%). They underwent cardiopulmonary exercise stress test 3 months after the second wave of the pandemic in Turkey (the latency time between evaluation and diagnosis is not better specified). Main findings : 1)Dyspnoea on exertion was the common clinical complaint of the patients. 2) The peak VO2 values of COVID-19 survivors decreased, and simultaneously, their exercise performance decreased due to peripheral muscle involvement. 3) the percentage of the maximum predicted VO2 max value was lower in male than in female COVID-19 survivors; 4)there was a positive correlation between the percentage of the predicted VO2 max value and the age. So, these results suggested that COVID-19 significantly affects young men among COVID-19 survivors.
Amini A et al. 10.1007/s10072-021-05502-w 2021 Iran N/A To investigate the effect of cognitive-motor training on the components of cognitive health of the elderly who recovered from COVID-19. Non randomised controlled trial Specialized outpatient rehabilitation Micro - Interventions (efficacy/harms) Nervous system structures (s1) and related functions (Mental functions b1) Post-Covid COVID-19 42 N/A Interactive CMT This is a time series where subjects serve as their own controls MMSE, GH-2 This study reports about 42 patients recovered from mild COVID-19 (mean age 70 years, mean BMI 22, severe cases were excluded, no information was provided about distance from recovery). They underwent 4-week CMT program twice a week. They were assessed at three time-points the beginning of the intervention, two weeks and 3 months after the end of the program. The main finding is represented by the decrease of the scores of depression, anxiety, physical symptoms, and social performance components and the overall GHQ-2 score both in short-term follow-up and in long-term follow-up compared to baseline assessment.
Aranda J et al. 10.1016/j.jinf.2021.08.018 2021 Spain From February 28 to April 15, 2020 To determine the clinical outcomes, exercise capacity, psychiatric disorders, and long-term HRQoL of patients with COVID-19 who developed ARDS and survived to hospital discharge. Inception Cohort study N/A Epidemiology - Natural history Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 166 N/A N/A N/A Physical examination, chest X-ray, and 6MWT, scales to evaluate post-traumatic stress disorder, depression, anxiety, and health-related QoL. This study reports about the 8 -month outcome of a cohort of 166 COVID-19 survivors (out of a total 365 patients with ARDS in the acute phase). The median age was 64 years, 79 % were males, median BMI was 29. At 240 days after COVID-19 onset, only 113 were available for the assessment. In these 113, 81% complained of persistent symptoms, most of them showed reduced tolerance to physical effort, 93% presented psychological disorders (depression/anxiety). Female sex, non-Caucasian race, and comorbidities were independent risk factors for a worse quality of life due to mental health component.
Bernocchi P et al. 10.1089/tmj.2021.0181 2021 Italy From March to June 2020 To describe the implementation and preliminary observational data of a service of telecare and telemonitoring of patients with chronic heart failure and chronic obstructive pulmonary disease. Cohort study Rehabilitation services at home Micro - Interventions (efficacy/harms) Cardiovascular functions (Heart b410) Post-Covid COVID-19 130 N/A Telecare nursing and specialist teleconsultation program for 3 months, including monitoring of vital signs and symptoms. N/A SF-12, symptoms, patient satisfaction. This study reports about 130 COVID-19 patients (mean age 68 years, 56% males, all the patients needed hospitalization). Patients were recruited in a COVID-19 ward at discharge. They underwent a 3 month program based consisting in telecare nursing and specialist teleconsultation, including monitoring of vital signs and symptoms. They were assessed at the beginning and at the end of the program. The main finding is represented by the statistically significant improvement between start to finish of the program in physical SF-12 scores, while mental SF-12 worsened in older patients ( <70 years old). Patient satisfaction with the program was very high in all 130 patients.
Blomberg B et al. 10.1038/s41591-021-01433-3 2021 Norway From February 28 to April 4, 2020 To assess persistent symptoms 6 months after initial COVID-19 in a prospective cohort of hospitalized and home-isolated patients from the first pandemic wave in Bergen, Norway. Cohort study N/A Epidemiology - Natural history Any other body structure and function-generic (s/b) Post-Covid COVID-19 312 N/A N/A 60 seronegative patients Symptoms This study reports about 312 COVID-19 patients (median age 46 years, mean BMI 22, 22% needed hospitalization) available at the 6-month follow-up after COVID-19 diagnosis. Compared to 61% rate of persisting symtoms in the whole sample, up to 52% home-isolated young adults, aged 16–30 years (32/61) also complained of loss of taste and/or smell (28%, 17/61), fatigue (21%, 13/61), dyspnea (13%, 8/61), impaired concentration (13%, 8/61) and memory problems (11%, 7/61).
de Graaf MA et al. 10.1016/j.eclinm.2021.100731 2021 Netherlands March-June 2020 To assess pulmonary, cardiac, infectious and psychological outcomes in patients with COVID-19 at 6 weeks of hospital discharge Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Ongoing COVID-19 81 N/A N/A N/A Cardiopulmonary function and pulmonary function testing This study reports about 81 COVID-19 patients (51 (63%) male, mean age 61±13 years, Mean Body Mass Index 27.8±4.5kg/m^2). They were assessed at 6 weeks after hospital discharge. The main finding is represented by the rate of change in cardiopulmonary function and psychological impairment after hospitalization. The majority of COVID-19 patients had residual symptoms at the outpatient clinic 6 weeks after discharge, mainly dyspnea on exertion as assessed by NYHA class. Patients showed relatively good psychological adjustment and limited prevalence of depression, anxiety, or PTSD symptoms (ranging from 5-17%). A lower pulmonary diffusion capacity correlated with functional status, dyspnea was found. DLCOc value was significantly lower in the ICU group versus the non-ICU group (mean difference 12.5%P=0.01). Also, FEV1 and FVC were significantly lower in de ICU group than in the non-ICU group (mean difference FEV1 14.9%;P<0.001; mean difference FVC 15.4%;P<0.001; respectively). CT Severity index was significantly higher in the ICU group (15.6±5.2) compared to non-ICU patients (10.8±3.6) (P<0.001). Patients with a higher NYHA class (2-3) had significantly lower DLCOc values (75±17% vs 83±13%, P=0.040). This study reports the clinical condition of 81 COVID-19 patients, of whom 34 (41%) had been admitted to the ICU, at 6 weeks of hospital discharge . They were 51 (63%) male, with mean age 61±13 years, mean Body Mass Index 27.8±4.5. The main finding is represented by the rate of change in cardiopulmonary function and psychological impairment after hospitalization. The majority of COVID-19 patients had residual symptoms at the outpatient clinic 6 weeks after discharge, mainly dyspnea on exertion as assessed by NYHA class. Patients showed relatively good psychological adjustment and limited prevalence of depression, anxiety, or PTSD symptoms (ranging from 5-17%). A lower pulmonary diffusion capacity correlated with functional status, dyspnea was found. DLCOc value was significantly lower in the ICU group versus the non-ICU group (mean difference 12.5%P=0.01). Also, FEV1 and FVC were significantly lower in de ICU group than in the non-ICU group (mean difference FEV1 14.9%;P<0.001; mean difference FVC 15.4%;P<0.001; respectively). CT Severity index was significantly higher in the ICU group (15.6±5.2) compared to non-ICU patients (10.8±3.6) (P<0.001). Patients with a higher NYHA class (2-3) had significantly lower DLCOc values (75±17% vs 83±13%, P=0.040).
De Marchi T 10.2147/JIR.S318758 2021 Brazil From May 2020 to July 2020. To investigate the effects of photobiomodulation therapy combined with static magnetic field (PBMT-sMF) on the length of ICU stay and mortality rate of severe COVID-19 patients requiring invasive mechanical ventilation and assess its role in preserving respiratory muscles and modulating inflammatory processes Randomised controlled trial Rehabilitation in acute care Micro - Interventions (efficacy/harms) Any other body structure and function-generic (s/b) Acute COVID-19 30 N/A photobiomodulation therapy combined with static magnetic field (15 cases) placebo photobiomodulation received daily throughout the ICU stay (15 controls) The primary outcome was length of ICU stay, defined by either discharge or death. The secondary outcomes were survival rate, diaphragm muscle function, and the changes in blood parameters, ventilatory parameters, and arterial blood gases. This study reports about 30 severe COVID-19 patients requiring invasive mechanical ventilation in ICU (mean age 66.06 years, 53.33% were male. ) equally randomized into the two groups: patients who underwent photobiomodulation therapy combined with static magnetic field and placebo control group. The length of ICU stay was not significantly different between the PBMT-sMF and placebo groups (16.26 and 23.06 days, respectively). In contrast, PBMT-sMF was significantly associated with reduced diaphragm atrophy, improved ventilatory parameters and lymphocyte count, and decreased C-reactive protein levels and hemoglobin count.
Ganesh R 10.1177/21501327211030413 2021 USA From March to September 2020. To determine the persistent post COVID impairments prevalence and characteristics by collecting post COVID illness data utilizing Patient-Reported Outcomes Measurement Information System (PROMIS®) Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 817 N/A N/A N/A The questionnaires concern fatigue, sleep disturbance , sleep-related impairment , ability to participate in social roles and activities, physical function, and pain interference This study reports about 817 COVID-19 patients (mean age 44±17; 61.1%females).The mean interval between initial positive PCR for SARS-CoV-2 and survey response was 68.4 days. Main findings : persistent symptoms (>28 days) are common in patients after resolution of acute COVID-19 disease and lead to impairment in the ability to participate in social roles (43.2%) and physical function (pain 17.8%, and fatigue 16.2%); PROMIS® scales reliably assess these symptoms and are comparable to findings in other survey studies; post COVID impairments prevalence and characteristics were influenced by being young (44 years), white (87%), and female (61%).
Gonzalez-Gerez JJ et al 10.3390/ijerph18147511 2021 Spain October 2020 to evaluate the feasibility and effectiveness of a novel program based on breathing exercises through telerehabilitation tools in COVID-19 patients with mild to moderate symptomatology in the acute stage. Randomised controlled trial Rehabilitation services at home Micro - Interventions (efficacy/harms) Respiratory structures (s430) and related functions (Respiration b440-455) Acute COVID-19 42 N/A Breathing Exercise Program via telerehabilitation two assessments Feasibility of the intervention. Six-MinuteWalk Test (6MWT). Multidimensional Dyspnoea-12 (MD12). Thirty-Second Sit-To-Stand Test (30STST). Borg Scale (BS). Significant differences were found for all of the outcome measures in favour of the experimental group. BS: Int: --2.63 DS 1.05, Control: -0.32 DS0.04, P: <0.001. MD12. Int:-6.37, DS 2.44, Control: 0.05 DS 0.21; P: <0.001. 30STST: Int: 1.32, DS 0.14, Control:-0.31, DS: 0.72, P:0.001. 6MWT: Int: 112.86, DS -18.23, Control: 6.00, DS 1.14, P: 0.007 This study reports about 42 COVID-19 patients with mild to moderate symptomatology in the acute stage (patients with positive PCR test and/or antigen test results in the last forty days were in home confinement). Subjects were random assigned to receiving either breathing exercises through telerehabilitation tools (mean age 40.79 ± 9.84) or sedentary activities (mean age 40.32 ± 12.53). The patients were assessed through video calls on the first and the seventh days. Thirty-eight subjects, with nineteen in each group, completed the one-week telerehabilitation program.The main finding is represented by the significant differences for all of the outcome measures in favor of the experimental group. Breathing exercises through telerehabilitation appeared as a promising strategy for improving outcomes related to physical condition, dyspnoea, and perceived effort among people exhibiting mild to moderate COVID-19 symptoms in the acute stage.
Grover S et al. 10.1016/j.ajp.2021.102815 2021 India From May to June 2, 2020 To evaluate psychological morbidity, PTSD, fatigue, cognitive deficits and perceived stigma among patients with COVID-19 after recovery from the acute phase of COVID-19 infection. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Nervous system structures (s1) and related functions (Mental functions b1) Ongoing COVID-19 206 N/A N/A N/A Patient Health Questionnaire-4 (PHQ-4), Impact of Events Scale-Revised (IES-R), Fatigue Severity Scale, questionnaire to assess perceived stigma, 4-item Likert scale (ranging from 0 to 3), specifically designed to tap cognitive deficits This study reports about 206 COVID-19 patients (median age 36 years, 54 % males, 66% of patients needed hospitalization, 8% needed ICU stay). They were assessed a mean of 33.72 (SD=49.52) days after recovery or hospital discharge, at around 2 months of COVID_19 infection. The main findings are represented by the prevalence of anxiety, depressive symptoms, and PTSD in the study sample that was 24.8 %, 23.8 %, and 30 % respectively. Moreover, 23.7% subjects reported feeling of being "confused, mentally foggy”, 31.5 % reported having a “lack of attention and concentration”, 22.3 % reported “forgetting recent things” and 18.4 % reported “forgetting past events”.
Hampshire A et al 10.1016/j.eclinm.2021.101044 2021 UK between January and December 2020 to assess wheter those who had recovered from COVID-19 would show objective cognitive deficits when performing tests of attention, working memory, problem solving and emotional processing Cross-sectional study N/A Epidemiology - Prevalence/Incidence Nervous system structures (s1) and related functions (Mental functions b1) Post-Covid COVID-19 12689 N/A N/A 68648 people not affected by COVID-19 global cognitive scores This study reports about 81,337 subjects undergoing a clinically validated web-optimized assessment as part of the Great British Intelligence Test ( mean age 46.75 years, male 44.5%). Of them, 12689 reported a suspected or confirmed COVID-19 infection, requiring hospitalization in 192 cases (ventilation in 44 of them). Time of assessment after symptoms onset not reported. The main finding is represented by the rate of persistent significant cognitive deficits versus controls when controlling for age, gender, education level, income, racial-ethnic group, pre-existing medical disorders, tiredness, depression and anxiety. The deficits were of substantial effect size for people who had been hospitalised (N = 192), but also for non-hospitalised cases who had biological confirmation of COVID-19 infection (N = 326). These differences were likely not present prior to infection
Hayden MC, 10.3390/ijerph18179001 2021 Germany From 28 April 2020 to 8 January 2021 To evaluate the efficacy of PR in patients after COVID-19 Non randomised controlled trial General postacute rehabilitation Micro - Interventions (efficacy/harms) Respiratory structures (s430) and related functions (Respiration b440-455) Ongoing COVID-19 108 N/A Three-week inpatient PR Fiftyfive subjects with severe COVID-19 symptoms treated in the acute phase (55) were compared to 32 subjects with severe symptoms receiving treatment after more than 1 month of hospital discharge and 21 subjects with mild symptoms Primary outcome: dyspena (NRS, mMRC dyspnea scale). Secondary outcome: 6MWT, lung function, Brief Fatigue Inventory, EQ-5D-5L, PHQ-9,GAD-7 This study reports about 108 COVID-19 patients (mean age 55.6 ± 10.1 years, 45.4% female) undergone PR as outpatients because of persistent symptoms after COVID-19 . The mean interval between hospital discharge (or end of the acute phase in non-hospitalized patients) and beginning of PR was 69±75.3 days. Post-hoc analysis of outcome was performed in the three subgroups identified according to the initial disease severity and the latency of rehab referral and (acute severe: 10.8±11.2 days; severe after interval:120.6±70.2 days; mild after interval:142.9±55.1days). The main finding is represented by the improvement with large effect sizes in exertional dyspnea, physical capacity, QoL, fatigue, and depression observed in the overall group exposed to PR program. There was a trend toward greater efficacy after ‘severe courses’ of COVID-19 and an earlier start of rehabilitation after the acute phase of the disease. Results were not compared to a control group.
Huang L et al. 10.1016/S0140-6736(21)01755-4 2021 China January 2020 - May 2021 To compare consequences between 6 months and 12 months after symptom onset among hospital survivors with COVID-19. Cohort study N/A Epidemiology - Natural history Any other body structure and function-generic (s/b) Post-Covid COVID-19 1276 N/A N/A N/A symptoms, mMRC score, health-related quality of life, distance walked in 6 min (6MWD), lung function, chest CT pattern, outpatient visit and hospital admission after discharge, and work status at follow-up This study reports about 1276 COVID-19 patients (681 (53%) male, mean age 59 years). They were assessed at 6 and 12 months after symptom onset. The main finding is represented by the rate of change in functional outcomes 12 months after symptom onset in COVID-19 patients (hospitalized). The proportion of patients with at least one sequelae symptom decreased from 68% (831/1227) at 6 months to 49% (620/1272) at 12 months (p<0·0001). The proportion of patients with dyspnoea, characterized by mMRC score of 1 or more, slightly increased from 26% (313/1185) at 6-month visit to 30% (380/1271) at 12-month visit (p=0·014). No significant difference in 6MWD was observed between 6 months and 12 months. 88% (422/479) of patients who were employed before COVID-19 had returned to their original work at 12 months. This study reports about 1276 COVID-19 patients (681 (53%) male, mean age 59 years). They were assessed at 6 and 12 months after symptom onset. The main finding is represented by the rate of change in functional outcomes 12 months after symptom onset in COVID-19 patients (hospitalized). The proportion of patients with at least one sequelae symptom decreased from 68% at 6 months to 49% at 12 months (p<0·0001). The proportion of patients with dyspnoea, characterized by mMRC score of 1 or more, slightly increased from 26% at 6-month visit to 30% at 12-month visit (p=0·014). No significant difference in 6MWD was observed between 6 months and 12 months. 88% (422/479) of patients who were employed before COVID-19 had returned to their original work at 12 months.
Johnsen S 10.1183/23120541.00205-2021 2021 Denmark From March 15 to August 31, 2020. To systematically describe and measure pulmonary and extra-pulmonary post-COVID-19 complications in relation to acute COVID-19 severity. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 57 N/A N/A N/A COPD Assessment Test, MRC dyspnoea score,EQ-5D-5L ,WPAI, Lung function testing, CFQ, 1-MSTST, CPET, HRCT, SCIP-D, TMTB This study reports about 57 COVID-19 patients (mean age 51±13, 49% male) who were evaluated in the respiratory outpatient clinic 3 months after discharge (hospitalised group) or resolution of the acute disease for patients referred by their general practitioner because of persistent post-COVID-19 symptoms. The main finding is that all 34 initially hospitalised patients and 22 out of 23 non-hospitalised patients had at least one complaint or abnormal finding 3 months post COVID-19. Most noteworthy, in the cohort of hospitalised patients, DLCO decreased below normal and HRCT abnormalities were found in about half of patients with the most common abnormality being ground-glass opacities.
Kaspersen KA et al. 10.1016/j.ijid.2021.06.017 2021 Denmark From May to August, 2020 To investigate the prevalence of COVID-19-associated symptoms obtained from self-reported questionnaires in a large cohort of patients with mild and asymptomatic infections. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Ongoing COVID-19 447 N/A N/A Seronegative subjects (10691) Self-reported symptom type and duration This study reports about 11 138 healthcare and administrative personnel that were tested for SARS-CoV-2 antibodies. Out of the total population, 447 (4%) reported to be seropositive (mean age 44 years, 9 % males, BMI 24, with mild and asymptomatic infections). The main findings is represented by a higher risk of reporting symptoms (fever, dyspnoea, muscle or joint ache, fatigue, cough, headache and sore throat, even persisting for more than 30 days), with the strongest association observed for loss of sense of taste and smell (OR = 35.6; 95% CI: 28.6–44.3), in seropositive subjects with respect to seronegative subjects.
Kayaaslan B et al 10.1002/jmv.27198 2021 Turkey December 2020 and February 2021 to investigate the prevalence and characteristics of the post‐COVID syndrome among COVID‐19 survivors and to determine the factors associated with persistent symptoms. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 1007 participants who have had COVID‐19 at least 3 months before N/A N/A General systemic symptoms, Respiratory symptoms,Neuropsychiatric system symptoms, General systemic symptoms including fatigue or easy fatigability, myalgia, and loss of weight were the most frequent persistent symptoms, and at least one of them was present in 29.3% of patients.Respiratory symptoms (25.4%) were the second common persistent symptoms and one‐fifth of the patients complained of dyspnea.Neuropsychiatric system symptoms were the third most common system symptoms (24.2%). Concentration or memory deficit (16.2%) and insomnia (9.6%) were the most frequent neurologic symptoms and followed by headache (5.7%).Hair losswas reported as a frequent dermatological symptom by COVID‐19 survivors (16.5%). This study reports about 1007 COVID-19 patients (mean age, 54.4% male, at least one comorbid disease :54.4%, needed oxygen support during hospitalization: 59.6%). They were assessed at a median time of 20 weeks of symptom onset. The main finding is represented by the rate of persistent fatigue or easy fatigability, myalgia, and loss of weight in post- COVID19 patients at 5 months. At least one of those was present in 29.3% of patients. Respiratory symptoms (25.4%) were the second common persistent symptoms and one‐fifth of the patients complained of dyspnea. Neuropsychiatric system symptoms were the third most common system symptoms (24.2%). Concentration or memory deficit (16.2%) and insomnia (9.6%) were the most frequent neurologic symptoms and followed by headache (5.7%). Hair loss was reported as a frequent dermatological symptom by COVID‐19 survivors (16.5%)
Lal P et al. 10.1007/s12070-021-02752-0 2021 India From March 1 to August 15, 2020 To study the presence of olfactory and gustatory dysfunctions in patients with laboratory-confirmed COVID-19. Inception Cohort study N/A Epidemiology - Prevalence/Incidence Nervous system structures (s1) and related functions (Sensory functions and pain b2) Ongoing COVID-19 47 N/A N/A N/A Subjective improvement in olfactory or gustatory symptoms and an approximate duration of recovery. This study reports about 47 COVID-19 hospitalized patients who were interviewed about the persistence of olfactory/gustatory disorders complained of in the acute phase (mean age 34.53(10.82) years with the most common age group affected as 20–29 years old; mostly females). They were identified based on a clinical registry review of 435 COVID-19 cases. Patients with previous history of changes in smell or taste sensation, severely ill at the time of admission, with history of taking drugs at the time of COVID-19 infection that affect the smell or taste sensation were excluded. The mean recovery for olfactory dysfunction was 12.1 days. At 6 weeks follow-up only 3 patients were still experiencing incomplete recovery of olfactory dysfunction, and 1 of gustatory disfunction.
LaVergne SMet al 10.1186/s12879-021-06359-2 2021 USA since July 2020 to study differential multi-organ system responses to SARS-CoV-2 infection, post-acute sequelae of COVID-19 (PASC), and vaccination Inception Cohort study N/A Epidemiology - Natural history Any other body structure and function-generic (s/b) Post-Covid COVID-19 119 N/A N/A N/A any Post acute sequelae (PASC) This study reports about 119 COVID-19 patients (mean age 50.3 years, 44.5% male).They were assessed up to 8 months of symptom onset. The main finding is represented by the rate of persistent fatigue, loss of smell, loss of taste, exercise intolerance, and cognitive dysfunction in COVID19 patients up to 8 months: Forty-nine percent of them had Post-acute sequelae (PASC) at any time during follow-up (up to 8 months post infection). Ninety-three percent of hospitalized participants developed PASC, while 23% of those not requiring hospitalization developed PASC. At 90–174 days post SARS-CoV-2 diagnosis, 67% of all participants had persistent symptoms (N = 37 of 55), and 85% percent of participants who required hospitalization during initial infection (N = 20) still had symptoms.
Li J et al 10. 1136/ thoraxjnl- 2021- 217382 2021 China between 22 April and May 28 2020 to investigate possible superiority of a telerehabilitation programme for COVID-19 (TERECO) over no rehabilitation with regard to functional exercise capacity, lower limb muscle strength (LMS), pulmonary function, perceived dyspnoea and health-related quality of life in formerly hospitalised COVID-19 survivors Randomised controlled trial Rehabilitation services at home Micro - Interventions (efficacy/harms) Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 120 patients discharded from hospitals unsupervised 6-week home exercise programme delivered through a smartphone application called RehabApp and monitored with a chest-worn heart rate (HR) telemetry device.. 3–4 sessions per week. It included (i) breathing control and thoracic expansion, (ii) aerobic exercise and (iii) LMS exercises specified in a three-tiered exercise plan with difficulty and intensity scheduled to increase over time short educational instructions at baseline functional exercise capacity at post-treatment measured with the 6 min walking test (6MWT). Pulmonary function was evaluated by spirometry. Health-related quality of life (HRQOL) was evaluated with the Short Form Health Survey-12 (SF-12) any reported This study reports about 120 COVID-19 survivors complaining for persistent dyspnoea at 70 days (+/-16.8) of hospital discharge (53 male; mean age: 50.61 +/-10.98 years) who were randomised to receive an unsupervised 6-week home exercise programme delivered through a smartphone application called RehabApp and monitored with a chest-worn heart rate (HR) (59 cases-TERECO group), or short educational instructions (61 controls) . Outcomes were assessed at 6 and 28 weeks (follow-up).The TERECO group showed a significant improvement in 6MWD, increasing by 65.45 m (95% CI 43.8 to 87.1; p <0.001) at post treatment and 68.62 m (95% CI 46.39 to 90.85; p<0.001) at follow-up. Quality of life (SF-12 physical component) also improved, whereas no group differences were found for lung function except post-treatment maximum voluntary ventilation.
Lindhal A et al. 10.1080/23744235.2021.1965210 2021 Finland From March to June, 2020 To evaluate subjective long-term symptoms and their effect on the quality of life in Finnish COVID-19 survivors and the association of these with the individual patient-based and in-hospital factors. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 101 N/A N/A N/A A survey on demographics and comorbidities, ten specific symptoms, and a RAND-36 quality of life questionnaire. This study reports about 101 COVID-19 patients (mean age 60 years, mean BMI 28.6, 53 % males, all of them needed hospitalization for a mean length of stay of 15 days). They were assessed 3 months after recovery. Main findings: 90% of patients still experienced symptoms, the most common of which were tiredness (88%), fatigue (79%), sleeping problems (76%), and dyspnoea (70%). Women showed a lower QoL in seven of eight dimensions. Five explanatory variables for the reduced quality of life were identified in multivariate analysis: age, female sex, BMI, sleep apnoea, and duration of mechanical ventilation.
Lombardi F et al 10.1186/s12890-021-01594-4 2021 Italy between April 22nd and May 27th, 2020 to investigate the prevalence of respiratory impairment in a cohort of COVID-19 patients after hospital discharge and to determine the relationship between the severity of pulmonary involvement during hospitalization and the extent of residual clinical and functional abnormalities Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Ongoing COVID-19 86 previous hospitalization for COVID-19; radiological evidence of interstitial pneumonia at the time of hospital admission; nasopharyngeal swab negative for SARS-Cov-2 in the 48–72 h before study enrolment. N/A N/A physical examination, resting ABG, pulmonary function tests (PFT) with DLCO, and 6MWT On PFTs, lung volumes were overall preserved yet, mean percent predicted residual volume was slightly reduced (74.8 ± 18.1%). Percent predicted diffusing capacity for carbon monoxide (DLCO) was also mildly reduced (77.2 ± 16.5%). Patients reported residual breathlessness at the time of the visit (VAS 19.8, p < 0.001). Patients with p/F below 200 during hospitalization had lower percent predicted forced vital capacity (p=0.005), lower percent predicted total lung capacity (p=0.012), lower DLCO (p < 0.001) and shorter 6MWT distance (p=0.004) than patients with higher p/F. Approximately one month after hospital discharge, patients with COVID-19 can have residual respiratory impairment, including lower exercise tolerance. The extent of this impairment seems to correlate with the severity of respiratory failure during hospitalization. This study reports about 86 COVID-19 patients (mean age 58 years, 67% male). They were assessed at 35 days post hospital discharge The main finding is represented by the rate of persistent respiratory impairment , including breathlessness and lower exercise tolerance . On PFTs, lung volumes were overall preserved yet, mean percent predicted residual volume was slightly reduced (74.8 ± 18.1%). Percent predicted diffusing capacity for carbon monoxide (DLCO) was also mildly reduced (77.2 ± 16.5%). Patients reported residual breathlessness at the time of the visit (VAS 19.8, p < 0.001). Patients with p/F below 200 during hospitalization had lower percent predicted forced vital capacity (p=0.005), lower percent predicted total lung capacity (p=0.012), lower DLCO (p < 0.001) and shorter 6MWT distance (p=0.004) than patients with higher p/F.
Maestre-Muñiz MM et al 10.3390/jcm10132945 2021 Spain From March 1 to June 1, 2020 To evaluate the long-term consequences of the disease among survivors at 1 year follow-up Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 543 N/A N/A N/A Clinical data, mortality, symptoms. This study reports about 543 COVID-19 survivors assessed at one year of COVID-19 diagnosis, out of a total 766 people with COVID-19 diagnosis in the acute phase. One-year mortality rate was 29%. Mean age of the total sample was 65.7 years, 50.7 % males; no demographic data is available about those who survived at one-year and were interviewed. Main findings: 90.1% of patients who needed hospitalization in the acute phase and 80.4% of those discharged from the emergency room (with mild symptoms) complained of persistent symtoms, most commonly breathlessness (41.6%), tiredness (35.4%), ageusia (30.2%), and anosmia (26.3%).
Martin-Martinez A 10.1016/j.clnu.2021.06.010 2021 Spain From 14th April to 30th July 2020 To assess the prevalence, risk factors and clinical outcomes of oropharyngeal dysphagia and malnutrition in a general hospital during the first wave of the COVID-19 pandemic. Inception Cohort study N/A Epidemiology - Natural history Digestive functions (b510) Post-Covid COVID-19 205 N/A N/A N/A Clinical assessment of dysphagia (Volume- Viscosity Swallowing Test), nutritional screening (NRS2002) and assessment (GLIM criteria), Barthel Index. The outcomes were assessed at pre-admission in general wards, admission and discharge, and after 3 and 6-months follow-up. This study reports about 205 COVID-19 patients hospitalized in general wards (69.28 ± 17.52 years, Charlson 3.74 ± 2.62, mean hospital stay 16.8 ± 13.0 days). The main finding is represented by a high prevalence and burden of oropharyngeal dysphagia and malnutrition in patients hospitalized in COVID-19 wards with a high rate of symptom persistence at 6 months . At admission, Barthel Index was 81.3 ± 30.3, dysphagia prevalence 51.7% (44.1% impaired safety of swallow); and 45.5% developed malnutrition with a mean weight loss of 10.1 ± 5.0 kg during hospitalization. Dysphagia was an independent risk factor for malnutrition during hospitalization, and hospitalization was prolonged in patients with malnutrition compared with those without (21.9 ± 14.8 vs 11.9 ± 8.9 days, respectively). Dysphagia was independently associated with comorbidities, neurological symptoms, and low functionality. At 6-month follow-up, the prevalence of dysphagia was still 23.3% and that of malnutrition only 7.1%. Patients with dysphagia at discharge showed reduced 6-month survival than those without at discharge (71.6% vs 92.9%). In contrast, those with malnutrition at discharge did not show 6-month survival differences compared to those without. The results suggest that optimizing the management of malnutrition might shorten the hospitalization period but optimizing the management of dysphagia will likely impact the nutritional status of COVID-19 patients and improve their clinical outcomes and survival after hospital discharge.
Mittal C 10.47203/IJCH.2021.v33i02.018 2021 India N/A To assess the prevalence of Post COVID symptoms, to assess requirement of treatment and to make recommendation for Post COVID care. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Ongoing COVID-19 100 N/A N/A N/A N/A This study reports about 100 COVID-19 who were interviewed regarding post covid symptoms in between 6 weeks to 12 weeks after recovery from COVID -19 (60 %were males.Among various age group 57% patient belong to 20-40 age group,35% belong to 40-60 age group while only 8% were 60 years and above. No respondent was below 20 years of age). The main finding is represented by the high prevalence of post covid symptoms: 87% patients developed one or more. Weakness was reported to be most common problem (55%), followed by body ache (26%) and neuropsychiatric symptoms such as difficulty in concentration and insomnia (22%). Every fifth patient reported that symptoms persisted for more than 1 month. Though most of the respondents classified their symptoms as mild and moderate (52.5% and 37.9% respectively), 47% of the symptomatic patients have to take some treatment for these symptoms.
Munker, D. 10.1007/s15010-021-01669-8 2021 Germany Acute illness during the first wave (March to August 2020), follow-up up to december 2020. To Evaluate pulmonary function impairment after COVID-19 in persistently symptomatic and asymptomatic patients of all disease severities and characterisation of risk factors. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 76 N/A N/A N/A Pulmonary function testing and cycle exercise blood gas analysis This study reports about 76 COVID-19 patients assessed 4 months after acute illness (mean age was 49.6 ± 17.4, and 43.3% were male), 35 of which were outpatients with mild disease and 41 were hospitalized due to COVID-19 (16 with critical disease requiring mechanical ventilation, 25 with moderate-severe disease). The main finding is represented by the rate of persistent respiratory symptoms (44 patients,58%) at 4-month follow-up. Significant pulmonary function impairment was prevalent in 40 patients (52.6%) occurring among all disease severities. The most common cause was reduced DLCOcSB (51.3%), followed by reduced TLC and FVC. The severity of the pulmonary function impairment was significantly associated with mechanical ventilation. Further risk factors for DLCO impairment were COPD, SARS-CoV-2 antibody-Titer, and in hospitalized patients CT score. Gas exchange abnormalities were revealed upon cycle exercise in 1/5 of patients with mild disease courses and no preexisting pulmonary condition.
Nambi G et al. 10.1177/02692155211036956 2021 Saudi Arabia March 2020 - April 2021 To investigate the effects of different aerobic training protocols combined with resistance training in community-dwelling older adults with post-COVID-19 sarcopenia symptoms Randomised controlled trial Rehabilitation services at home Micro - Interventions (efficacy/harms) Any other body structure and function-generic (s/b) Post-Covid COVID-19 76 N/A Low-intensity aerobic training (n = 38) for eight weeks. Resistance training was prescribed to both groups High-intensity aerobic training (n = 38) for eight weeks. Physical (muscle strength and muscle mass) and psychological (kinesiophobia and quality of life) scales) measures This study reports about 76 COVID-19 patients divided into two groups (low-intensity aerobic training group, mean age 63.2 ± 3.1; high-intensity aerobic training group, mean age 64.1 ± 3.2). The patients were assessed at the baseline, fourth week, the eighth week, and at six months follow-up. The main finding is presented by the significant differences (P < 0.001) in terms of handgrip strength, −3.9 (95% CI −4.26 to −3.53), kinesiophobia level 4.7 (95% CI 4.24 to 5.15), and quality of life −10.4 (95% CI −10.81 to −9.9) between low-intensity aerobic training group rather than high-intensity aerobic training group, with better results in the low-intensity aerobic training group. Muscle mass did not show any significant difference (P> 0.05) between groups. This study reports about 76 COVID-19 patients with post-Covid sarcopenia who were random assigned to two intervention groups (low-intensity aerobic training group, mean age 63.2 ± 3.1; high-intensity aerobic training group, mean age 64.1 ± 3.2). Interval from COVID_19 onset and treatment start is not reported. The patients were assessed at the baseline (before starting training), fourth week, the eighth week, and at six months follow-up. The main finding is presented by the significant differences (P < 0.001) in terms of handgrip strength, −3.9 (95% CI −4.26 to −3.53), kinesiophobia level 4.7 (95% CI 4.24 to 5.15), and quality of life −10.4 (95% CI −10.81 to −9.9) between low-intensity aerobic training group rather than high-intensity aerobic training group, with better results in the low-intensity aerobic training group. Muscle mass did not show any significant difference (P> 0.05) between groups.
Rodriguez-Blanco 10.3390/medicina57070684 2021 Spain 6–13 April 2021 To evaluate the feasibility and effectiveness of a novel therapeutic exercise program through telerehabilitation tools in COVID-19 patients with mild to moderate symptomatology in the acute stage. Randomised controlled trial Rehabilitation services at home Micro - Interventions (efficacy/harms) Any other body structure and function-generic (s/b) Acute COVID-19 40 N/A One week telerehabilitation: Non-Specific Conditioning Exercise Program, consisting of 10 exercises based on non-specific toning exercises of resistance and strength 18 patients who did not perform physical activity. 6MWT, Thirty seconds sit-to-stand test, Borg scale This pilot RCT study reports about 40 COVID-19 (19 women) with mild to moderate symptomatology, confined at home by less than 40 days. They were random assigned to an experimental group receiving muscle conditioning exercises, and a control group, who did not perform physical activity. 36 subjects, 18 in each group (mean age 39.39±11.74 in exercise group and 41.33 ±12.13 in control group), completed the one-week intervention with 90%adherence.The main finding is represented by the greater improvement in all outcome measures in the experimental group. No gender-related differences in outcome were found.
Rousseau, A. F 10.1186/s13613-021-00910-9 2021 Belgium From March 1st to July 17th, 2020 To describe the physical, cognitive, psychological, and biological outcomes of COVID-19 survivors at 3 months following ICU discharge. Cross-sectional study General postacute rehabilitation Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 32 N/A N/A N/A EQ-5D-3L, PSQI, Barthel index, HADS and IES-R, MoCA This study reports about 32 COVID-19 patients assessed 3 months after ICU stay (median age was 62 [49–68] years; 72% were male; ICU LOS days 23 [15–39]; and nearly half received inpatient rehabilitation following ICU discharge.)The main finding is represented by a high prevalence of patients (87.5%) who have not regained their baseline level of daily activities. The main observed disorders were sleep disorders (75%), cognitive impairment (44%), dependency in ADL (31%), and mental health disorders (28%). Combined disorders were observed in 40.6% of the patients. The quality of life was reduced as for EQ-5D-3L score at 71 [61–80]. A quarter of patients (8/32) demonstrated a persistent inflammation based on C-reactive protein blood level.
Salem AM et al. 10.2147/IJGM.S319436 2021 Saudi Arabia From March to October, 2020 To investigate the impact of COVID-19 pneumonia on pulmonary function measurements after three months from recovery. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 20 N/A N/A 30 subjects that tested negative to COVID-19 testing Pulmonary function testing. This study reports about 20 COVID-19 patients (mean age 47 years, 65 % males, all of them were hospitalized during acute phase and 2 of them needed ICU stay). They were assessed at 3 months after recovery. They were compared to a control group of 30 subjects that resulted negative to COVID-19 testing. The main finding is represented by the 50% rate of restricted lung impairment, and the 35% rate of mild diffusion defect in COVID19 patients at 3 months, compared to the rate respectively of 20% and 23.3% in the control group. This study reports about 20 COVID-19 patients (mean age 47 years, 65 % males, all of them were hospitalized during acute phase and 2 of them needed ICU stay). They were assessed at 3 months after recovery and the outcome was compared to that assessed in 30 healthy non-smoker volunteers with no history of asthma, allergy, chronic pulmonary diseases, past COVID-19 infection, and who were negative to COVID-19 testing. The main finding is represented by the 50% rate of restricted lung impairment, and the 35% rate of mild diffusion defect in COVID19 patients at 3 months, compared to the rate respectively of 20% and 23.3% in the control group.
Salesi M et al. 10.34172/ipp.2021.34. 2021 Iran From February to May, 2020 To understand whether the presence of the disease itself or the use of glucocorticoids and DMARDs in patients with concurrent RD and COVID-19 increases or decreases the severity of symptoms and outcome. Cohort study N/A Epidemiology - Natural history Respiratory structures (s430) and related functions (Respiration b440-455) Acute, post-acute, late-onset, or permanent on a pre-existing health condition COVID-19 and concurrent RD 19 N/A N/A 200 subjects with COVID-19 without RD . Severity of symptoms. This study reports about 200 COVID-19 patients (mean age 54 years, 69 % males, all of them were hospitalized during acute phase and 17% needed ICU stay). They were assessed at 3 months after recovery. They were assessed from hospital presentation and followed-up for 12 weeks. They were compared to a control group of 19 patients with concurrent RD and COVID-19. The main finding is represented by the higher rate of respiratory symptoms in the RD compared to the NRD group after, but not before, recovery. However, no difference was found between the RD patient who received corticosteroid as a treatment and those who did not. This study reports about 19 patients with Rheumatic disease (RD) and concurrent COVID-19 (mean age 58.26±12.77 years, 66 % males), hospitalized during acute phase, longitudinally assessed from hospital presentation up to 12 weeks. They were compared to a control group of 200 COVID-19 patients without concurrent RD . The main finding is represented by the higher rate of respiratory symptoms in the RD compared to the NRD group after, but not before, recovery. No difference was found between the RD subjects who received corticosteroid as a treatment and those who did not. An increased risk for severe forms of COVID-19 is estimated in RD patients. This risk is possibly attributable to a high prevalence of comorbidities .
Salmon-Ceron D et al 10.1016/j.jinf.2020.12.002 2021 France May 2020 to describe the clinical, biological and imaging profile of patients with persistent or resurgent symptomsin order to suggest a classification of the symptoms and raise hypotheses about their pathophysiology. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 70 N/A N/A N/A Major fatigue or exhaustion - Neurological symptoms,. - Cardiothoracic symptoms - Muscular or/and articular pains - ENT symptoms: persistent or recurrent anosmia, hyposmia and/or dysgeusia . - Gastro-intestinal symptoms n. - Skin and vascular symptoms ). Major fatigue or exhaustion for 51 patients (72.9%) - Neurological symptoms, in 54 (77.1%). Those were divided into neuro-cognitive disorders (such as memory, mood or attention disorders), headaches, sensory disturbances (such as balance disorders, tingling, burning sensations and neurogenic pains), or others (swallowing or speech disorders, thermoregulation disorders). - Cardiothoracic symptoms in 50 patients (71.4%): chest pain and tightness, palpitations, cough, dyspnea. - Muscular or/and articular pains for 20 (25.7%). - ENT symptoms: persistent or recurrent anosmia, hyposmia and/or dysgeusia for 21 (30%). - Gastro-intestinal symptoms for 17 (24.3%): diarrhea, nausea/ vomiting, epigastric or abdominal pain. - Skin and vascular symptoms in 10 (14.4%). This study reports about 70 COVID-19 patients (median age 45 years, 21.4% male). They were assessed at1-2 months after symptoms onset The main finding is represented by the rate of persistent major fatigue or exhaustion (72.9%), neurological symptoms (77.1%) such as neuro-cognitive disorders, headache, sensory disturbances or others (swallowing or speech disorders, thermoregulation disorders). Patients also reported cardiothoracic symptoms (71.4%) such as chest pain and tightness, palpitations, cough, dyspnea, muscular or/and articular pains (25.7%), persistent or recurrent anosmia, hyposmia and/or dysgeusia (30%), gastro-intestinal symptoms (24.3%) such as diarrhea, nausea/vomiting, epigastric or abdominal pain, skin and vascular symptoms (14.4%).
Sathyamurthy P et al. 10.7759/cureus.17189 2021 India August-November 2020 To analyze a cohort of older adults hospitalized with COVID-19 for the presence, prevalence, and patterns of post-COVID-19 syndrome alongside their functional outcomes 90 days after their recovery and discharge from the hospital. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any Activity limitation and participation restriction (d) Post-Covid COVID-19 elderly patients 279 Hospitalized older adults N/A M/M (mild to moderate illness) vs. S/C (severe to critical illness) functional outcomes This study reports about 279 COVID-19 patients (178 (63.8%) male, mean age 71 years). They were assessed 90 days after discharge. The main finding is represented by the prevalence of fatigue (8.9%) followed by cough (4.3%), breathlessness (1.8%), dizziness (1.4%), myalgia (1.1%), loss of smell and taste (0.8%), and chest discomfort (0.7%). There was no difference in the prevalence of persisting symptoms between men and women. The prevalence of post-COVID-19 syndrome (two or more clinical features) was significantly high among severe to critical illness patients (14% vs. 6%) when compared with mild to moderate ilness patients (p = 0.50). followed by cough (4.3%), breathlessness (1.8%), dizziness (1.4%), myalgia (1.1%), loss of smell and taste (0.8%), and chest discomfort (0.7%). There was no difference in the prevalence of persisting symptoms between men and women. This study reports about 279 COVID-19 patients older than 65 (178 (63.8%) male, mean age 71 years), who were interviewed 90 days after hospital discharge. Clinically, 58.4%) patients suffered from mild/moderate disease, whereas 41.6% from severe/critical COVID-19. The main finding is represented by the prevalence of fatigue (8.9%) followed by cough (4.3%), breathlessness (1.8%), dizziness (1.4%), myalgia (1.1%), loss of smell and taste (0.8%), and chest discomfort (0.7%). There was no difference in the prevalence of persisting symptoms between men and women. 23.6% patients reported the presence of at least one clinical feature while 9.3% had two or more clinical features, with this risk being greater among severe to critical illness patients compared with mild to moderate ilness patients (14% vs. 6%) (p = 0.50). Most older adults retained their baseline functional status after 90 days of recovery from acute COVID-19.
Seeßle, J 10.1093/cid/ciab611 2021 Germany From 22nd of February 2020 to 18th of April 2020 To better understand the long-term course and etiology of COVID-19 symptoms Inception Cohort study N/A Epidemiology - Natural history Any other body structure and function-generic (s/b) Post-Covid COVID-19 96 N/A N/A N/A symptoms assessment, antinuclear antibodies (ANA) titers , and SARS-CoV-2 antibody levels, SF12 This study reports about 96 patients (median age 57; 55.2% females; 32.3% hospitalised) systematically assessed at 5, 9, and 12 months after COVID-19 symptom onset. The main findings are represented by: 1) At month 12, only 22.9% of patients were completely free of symptoms and the most frequent symptoms were reduced exercise capacity (56.3%), fatigue (53.1%), dyspnoea (37.5%), concentration problems (39.6%), problems finding words (32.3%), and sleeping problems (26.0%). 2) Compared to patients without symptoms, patients with at least one long COVID symptom at 12 months did not differ significantly with respect to their SARS-CoV-2-antibody levels, but had a significantly reduced physical and mental life quality compared to patients without symptoms. 3) Females showed significantly more neurocognitive symptoms than males. 4) Several neurocognitive symptoms were associated with ANA titre elevations rendering autoimmunity a potential cofactor in aetiology of long COVID.
Skjørten I et al 10.1183/13993003.00996-2021 2021 Norway between June 1, 2020 and september 2020 to describe cardiopulmonary function during exercise 3 months after hospital discharge for COVID-19 and compare groups according to dyspnea and intensive care unit (ICU) stay. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 156 N/A N/A Normal values from a Norwegian reference population with similar comorbidities Peak oxygen uptake (VO2), Dyspnea, Ventilatory efficiency, Breathing reserve assessed 3 months after dischage This study reports about 156 COVID-19 patients (median age 56.2 years, 61.6% male). They were assessed at 3 months after hospital. The main finding is represented by a reduction of ventilatory efficiency in 15% of participants and of breathing reserve <15% in 16% . Oxygen pulse <80% of predicted was found in 18%. Dyspnea (mMRC ≥1) was reported by 38%. In participants treated at ICU vs. non-ICU, mean peak (SD) VO2 % of predicted were 82 (15)% and 90 (17)% (p=0.004), respectively. Ventilation, breathing reserve, and ventilatory efficiency were similar between the ICU and non-ICU groups..
Stavrou VT, 10.3390/jpm11080806 2021 Greece From September 2020 to December 2020 To determine the impact of unsupervised Pulmonary Rehabilitation (uns-PR) on patients recovering from COVID-19, and determine its anthropometric, biological, demographic and fitness correlates. Non randomised controlled trial Rehabilitation services at home Micro - Interventions (efficacy/harms) Any other body structure and function-generic (s/b) Post-Covid COVID-19 20 N/A unsupervised Pulmonary rehabilitation. Adherence to the program was determined via 2 phone calls per week prior to the visit. This is a before-after study where subjects serve as their own controls Anthropometric characteristics and body composition,Pulmonary function test, Oxidative stress biomarkers, 6 MWT, Pittsburgh Sleep Quality Index This study reports about 20 COVID-19 patients (age: 64.1 ± 9.9 years, 75% male) who participated in unsupervised Pulmonary Rehabilitation (uns-PR) program for eight weeks. The main findings were that after uns-PR significant improvement were observed in all outcome measures, during 6MWT (i.e. systolic blood pressure, heart rate , oxygen saturation, dyspnea at the end of 6 MWT, distance , estimated O2 uptake, plasma antioxidant capacity, body composition parameters and muscle mass). The authors support the implementation of unsupervised pulmonary rehabilitation programs in patients following COVID-19 recovery, targeting the improvement of many aspects of long COVID-19 syndrome.
Stute NL rt al. doi: 10.1113/EP089820 2021 USA NR to investigate whether central and peripheral hemodynamics during handgrip exercise were different in young adults 3-4 weeks following infection with of SARS-CoV-2 compared with young healthy adults. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Cardiovascular functions (Heart b410) Acute COVID-19 13 N/A 13 otherwise healthy young adults whose data were collected prior to the COVID-19 pandemic Symptom Severity. Central hemodynamics, Peripheral hemodynamics during handgrip exercise This study reports about 13 young adults who tested positive for SARS-CoV-2 in the prior 3-4 weeks and 13 age-matched healthy controls (mean age 21 years in COVID patients, 27 years in control subjects , 61% male in either group).They were assessed up to 25 days after testing positive for SARS-CoV-2. The main finding is represented by higher systolic blood pressure, end systolic arterial pressure, and rate pressure product in the SARS-CoV-2 group during exercise at 45%MVC compared with controls; lower brachial artery BF and brachial artery vascular conductance at both 30%MVC .The shear-induced dilation of the brachial artery increased similarly across exercise intensities in the two groups, suggesting the decrease in exercising blood flow may be due to microvascular impairments.
Taylor, R. R 10.7861/clinmed.2021-0037 2021 UK November 2020 To describe the post-COVID symptoms of patients stratified by severity of acute COVID-19 infection. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Any other body structure and function-generic (s/b) Post-Covid COVID-19 675 N/A N/A N/A N/A This study reports about a total 675 COVID-19 patients interviewed after 12 weeks of hospital discharge (of which, 129 were high-risk pneumonia patients , mean age 57.1±12.9; 68%male; and 376 were low-risk pneumonia patients, mean age 59.3±16.2; 59%male), or after 12 weeks of confirmed or suspected COVID (n=130 home treated subjects, mean age 46.8; ±12.9; 42%male). The main findings is represented by the high prevalence of physical health and mental health symptoms in hospital-treated patients following both ‘high-risk’ and ‘low-risk’ acute COVID pneumonia and in community-referred patients. The most common was fatigue (50.3% of high- risk patients, 46.8% of low risk, and 82.3%of community ). Pneumonia severity in the acute phase is not a predictor of long COVID symptoms.
Tempany M et al. 10.1093/occmed/kqab109 2021 Ireland From June to November, 2020 To assess the prevalence and nature of persistent symptoms among HCWs presenting for duty, who had either (i) nominally recovered from clinically apparent and PCR diagnosed infection or (ii) demonstrated evidence of previous sub-clinical COVID-19 infection by having reactive antibody results. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 217 N/A N/A N/A Degree of recovery and persistent symptoms. This study reports about 217 COVID-19 patients, 139 PCR positive and 78 antibody positive (the range of the age was 20 to 69 with no information about median and mean, 80 % males, only 59% truly symptomatic in the acute phase). All were assessed at least 3 months after COVID-19 diagnosis. Among the first group, only 19% reported feeling 100% recovered, and 71% reported persistent symptoms. Among the latter group 39% still complained of residual symptoms.
Trevissón-Redondo B et al. 10.3390/ijerph18147258 2021 Spain From March to December, 2020 To evaluate ADLs using the Barthel Index before and after infection with the severe acute respiratory syndrome coronavirus 2 in a population of geriatric inpatients. Inception Cohort study N/A Epidemiology - Natural history Any Activity limitation and participation restriction (d) Post-Covid COVID-19 68 N/A N/A N/A BI This study reports about 68 geriatric subjects living in nursing homes who were hospitalized due to COVID-19 (mean age 85.9 years, 50% males, BMI 24). The Barthel index assessed within the 3 months preceding COVID-19 onset was compared to the BI assessed in the 3 month-period following COVID-19 onset. The main findings is represented by the reduced independence in ADLs of institutionalized elderly in nursing homes after experiencing COVID-19, regardless of gender.
Van Veenendaal et al. 10.3390/healthcare9070865 2021 Netherlands March-September 2020 To assess the long-term physical, social and psychological functioning of COVID-19 ICU-survivors and their family members Cohort study N/A Epidemiology - Natural history Any Activity limitation and participation restriction (d) Post-Covid COVID-19 and family members 60 COVID-19 ICU-survivors and 78 family members COVID-19 ICU survivors N/A N/A Physical functioning, frailty, spirometry, social functioning, return to work, psychological functioning. Results: Sixty COVID-19 ICU-survivors and 78 family members participated in this study This study reports about 60 COVID-19 ICU-survivors (mean age 62.5 (55.3–68.0) ; 41 male) and 78 family members (mean age 56.0 (41.0–63.0), 20 male). They were assessed at three- and six months following ICU discharge. The main finding is represented by the levels of physical functioning impairment in ICU-survivors (33.3 (IQR 16.7–66.7) and 50 (IQR 16.7–83.3) out of 100 at 3- and 6-month follow-ups). Ninety percent of ICUsurvivors reported persistent symptoms after 6 months. Social functioning was impaired since 90% of COVID-19 ICU-survivors at 6 months. Psychological functioning was unaffected in COVID-19 ICU-survivors. Family members experienced worse work status in 35% and 34% of cases, including a decrease in work rate among 18.3% and 7.4% of cases at 3- and 6-months. Sixty-three percent of family members reported impaired well-being. This study reports about 60 COVID-19 ICU-survivors (mean age 62.5 (55.3–68.0) ; 41 male) and 78 family members (mean age 56.0 (41.0–63.0), 20 male). They were assessed at three- and six months following ICU discharge. The main finding is represented by the levels of physical functioning impairment in ICU-survivors (33.3 (IQR 16.7–66.7) and 50 (IQR 16.7–83.3) out of 100 at 3- and 6-month follow-ups). Ninety percent of ICUsurvivors reported persistent symptoms after 6 months. Social functioning was impaired since 90% of COVID-19 ICU-survivors at 6 months. Psychological functioning was unaffected in COVID-19 ICU-survivors. Family members experienced worse work status in 35% and 34% of cases, including a decrease in work rate among 18.3% and 7.4% of cases at 3- and 6-months. Sixty-three percent of family members reported impaired well-being.
Walsh-Messinger J et al. 10.1101/2020.11.24.20238261 2021 USA From October 7 to November 11, 2020 To investigate the prevalence and features of post- COVID syndrome in a sample of university students with mild to moderate acute illness severity. Cross-sectional study N/A Epidemiology - Prevalence/Incidence Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 43 N/A N/A Patients that fully recovered from COVID-19 and subjects not diagnosed with COVID-19 Self-reported symptoms This study reports about 148 students involved in an online survey . Out of the entire population analyzed, 43 were COVID-19 patients assessed at 86 days (on average) after COVID-19 onset (22 of them complained of symptoms lasting≥28 days; mean age 19 years, 36% males; whereas 21 were fully recovered; mean age 19 years, 33% males), 58 were COVID-19 test negative (mean age 19 years, 36% males), whereas the remaining were not clinically diagnosed with COVID-19. Main finding: 51% of partecipants who contracted COVID-19 were still experiencing symptoms and all but one of them were females.
Zampogna E et al. 10.36416/1806-3756/e20210076 2021 Italy From May 27 to September 17, 2020 To evaluate the exercise capacity of patients four weeks after discharge from an acute care facility and after a three-month follow-up. Cohort study Specialized outpatient rehabilitation Epidemiology - Natural history Respiratory structures (s430) and related functions (Respiration b440-455) Ongoing COVID-19 30 N/A N/A Patients were divided in two groups of 15 patients each, according to the results of the 6MWT (<75% of the predicted value group and ≥75% group) Pulmonary function testing, SPPB, Euro QoL VAS. This study reports about 30 COVID-19 patients (mean age 63.6 years, 70 % males, all of them were hospitalized during acute phase and needed ICU stay). They were assessed at two time-points: three to five weeks after discharge and three months later. Patients were divided in two groups of 15 patients each, according to the results of the 6MWT (<75% of the predicted value group and ≥75% group). Exercise capacity and functional status values returned to predicted values in patients of both group at the end of the follow-up; however, only the subjects in the <75% group showed significant improvements in dyspnea and lower extremity function. This study reports about 30 COVID-19 patients (mean age 63.6 years, 70 % males, all of them were hospitalized during acute phase and needed ICU stay). They were assessed at two time-points: three to five weeks after discharge and three months later. Patients were analysed in subgroups based on the results of the 6MWT (<75% of the predicted value group and ≥75% group). Exercise capacity and functional status values returned to predicted values in patients of both groups at the end of the follow-up; however, only the subjects in the <75% group showed significant improvements in dyspnea and lower extremity function.
Zhou M. et al 10.3389/fmed.2021.682087 2021 China between March 5th and March 31st, 2020 To investigate whether coronavirus disease 2019 (COVID-19) survivors who had different disease severities have different levels of pulmonary sequelae at 3 months post-discharge. Cohort study N/A Epidemiology - Natural history Respiratory structures (s430) and related functions (Respiration b440-455) Post-Covid COVID-19 146 N/A N/A N/A Static and dynamic lung volumes;The lung diffusion capacity for carbon monoxide (DLCO) and per-unit alveolar volume (DLCO/VA);pulmonary function parameters were expressed as a percentage of the predicted value (e.g., FEV1% pred, TLC% pred, FVC% pred, RV% pred, DLCO% pred, etc.,), Ground glass opacity (GGO) and solid components (SC) at CT scan; quality-of-life evaluation (St. George Respiratory Questionnaire [SGRQ]) This study reports about 146 subjects, 95 recovered from severe/critical COVID-19 (SPs), 51 recovered from mild/moderate disease (MPs). Volunteers who recovered from asymptomatic COVID-19 from an isolation hotel (28) and uninfected healthy controls from the community (42) were recruited as controls. COVID -19 subjects were assessed 3 months after hospital discharge. The SGRQ scores were highest in the SPs, while APs had slightly higher SGRQ scores than those of HCs; 85.1% of SPs and 68.0% of MPs still had residual CT abnormalities, mainly ground-glass opacity (GGO) followed by strip-like fibrosis at 3 months after discharge, but the pneumonic lesions were largely absorbed in the recovered SPs or MPs relative to findings in the acute phase. Pulmonary function showed that the frequency of lung diffusion capacity for carbon monoxide abnormalities were comparable in SPs and MPs (47.1 vs. 41.7%), while abnormal total lung capacity (TLC) and residual volume (RV) were more frequent in SPs than in MPs (TLC, 18.8 vs. 8.3%; RV, 11.8 vs. 0%).

Abbreviations: 1-MSTST= 1-min sit-to-stand test ; 6MWT= 6 minutes walking test; ADL= Activity of daily living; ARDS= Acute respiratory distress syndrome; BI= Barthel Index; CFQ= Cognitive Failures Questionnaire; COPD=Chronic obstructive pulmonary disease; CPET= Cardiopulmonary exercise testing; CRQ=chronic respiratory questionnaire; CMT= Cognitive-motor training; CT=computed tomography; DMARDs= conventional or biologic disease-modifying antirheumatic drugs; DLCOcSB= diffusing capacity of the lung for carbon monoxide single-breath corrected for hemoglobin; Euro QoL VAS=Euro Quality of Life Visual Analogue Scale; FIM=Functional Independence Measure; FVC=forced vital capacity; GAD-7= Generalized Anxiety Disorder-7; GH-2= General Health Questionnaire 2; HADS=Hospital Anxiety and Depression scale; HRCT= high-resolution computed tomography; HWCs= Healthcare workers; ICU= Intensive care unit; IES-R= impact of event scale-revised; LOS= lenght of stay; mMRC= modified Medical Research Council; MMSE= Mini-mental state examination; MoCA=Montreal Cognitive Assessment; NRS: Numeric Rating Scale; OD= Olfactory Disfunctions; PHQ-9= Patient Health Questionnaire 9; PR= pulmonary rehabilitation; PSQI=Pittsburgh Sleep Quality Index; QoL= Quality of Life; RD= rheumatic disease; SCIP-D= Screen for Cognitive Impairment in Psychiatry Danish Version; SDQ= Swallowing Disturbance Questionnaire; SPPB= Short Physical Performance Battery; TLC= total lung capacity; TMT-B= Trail Making Test-Part B ;VVST= Volume-Viscosity Swallow Test; WPAI= Work Productivity and Activity Impairment Questionnaire