SynthesisBMC pulmonary medicine2021
Radiological and functional lung sequelae of COVID-19: a systematic review and meta-analysis.
Synthesis in BMC pulmonary medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
62 citing papers in PubMed, 4 syntheses or guidelines pooled it, 110 citations in OpenAlex.
- Association between COVID-19 and sexual health: an umbrella review.Annals of medicine · 2023Pooled it
- Pulmonary function and chest computed tomography abnormalities 6-12 months after recovery from COVID-19: a systematic review and meta-analysis.Respiratory research · 2022Pooled it
- One-year follow-up CT findings in COVID-19 patients: A systematic review and meta-analysis.Respirology (Carlton, Vic.) · 2022Pooled it
- ESCMID rapid guidelines for assessment and management of long COVID.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2022Guideline
- Respiratory Emergencies in Disasters: A Narrative Review.Thoracic research and practice · 2026Article
- Methylprednisolone in the management of post-COVID-19 interstitial lung disease: A randomized trial (STERCOV-ILD).Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2026Article
- The Impact of COVID-19 on Obstructive Pulmonary Diseases: A Narrative Review of Long-Term Consequences and Vaccination Strategies.Health science reports · 2026Article
- Impact of COVID-19 on Respiratory Function: A Post-Recovery Comparative Assessment.Journal of clinical medicine · 2026Article
- Article
- Multimodal prediction of persistent pulmonary nodules after COVID-19: radiomics feature integration with clinical and epidemiologic variables.Frontiers in medicine · 2026Article
- Pulmonary Fibrosis in Critically Ill Patients With COVID-19: A Multi-Center Retrospective Cohort Study in Korea.Journal of Korean medical science · 2025Observational
- MRI Assessment of Lung Water Density in Individuals Previously Infected With COVID-19: A Cross-Sectional Study.Journal of magnetic resonance imaging : JMRI · 2025Article
- Comparing risk of post infection erectile dysfunction following SARS Coronavirus 2 stratified by acute and long COVID, hospitalization status, and vasopressor administration: a U.S. large claims database analysis.International journal of impotence research · 2025Article
- Functional Capacity Impairment in Long COVID After 17 Months of Severe Acute Disease.International journal of environmental research and public health · 2025Article
- Radiological abnormalities persist following COVID-19 and correlate with impaired health-related quality of life: a prospective cohort study of hospitalised patients.BMJ open respiratory research · 2025Observational
- Coronavirus Disease 2019 Case Series in China: Sequelae and Effectiveness of Vaccination and Antiviral Drugs.Infection and drug resistance · 2025Article
- Ultra-low-dose vs. standard-of-care-dose CT of the chest in patients with post-COVID-19 conditions-a prospective intra-patient multi-reader study.European radiology · 2024Article
- Musculoskeletal, Pulmonary, and Cardiovascular COVID-19 Sequelae in the Context of Firefighter Occupational Health: A Narrative Review.International journal of environmental research and public health · 2024Review
- Post-COVID Interstitial Lung Disease: How do We Deal with This New Entity?Balkan medical journal · 2024Article
- Serological Biomarkers in Individuals with Interstitial Lung Disease after SARS-CoV-2 Infection and Association with Post-COVID-19 Symptoms.Pathogens (Basel, Switzerland) · 2024Article
2 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe coronavirus disease 2019 (COVID-19) causes a wide spectrum of lung manifestations ranging from mild asymptomatic disease to severe respiratory failure. We aimed to clarify the characteristics of radiological and functional lung sequelae of COVID-19 patients described in follow-up period.
methodPubMed and EMBASE were searched on January 20th, 2021 to investigate characteristics of lung sequelae in COVID-19 patients. Chest computed tomography (CT) and pulmonary function test (PFT) data were collected and analyzed using one-group meta-analysis.
resultsOur search identified 15 eligible studies with follow-up period in a range of 1-6 months. A total of 3066 discharged patients were included in these studies. Among them, 1232 and 1359 patients were evaluated by chest CT and PFT, respectively. The approximate follow-up timing on average was 90 days after either symptom onset or hospital discharge. The frequency of residual CT abnormalities after hospital discharge was 55.7% (95% confidential interval (CI) 41.2-70.1, I
conclusionsThis systematic review suggested that about half of the patients with COVID-19 still had residual abnormalities on chest CT and PFT at about 3 months. Further studies with longer follow-up term are warranted.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.