ArticleCureus2025
Pulmonary Symptoms After Mild COVID-19: A Retrospective Observational Study.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background Patients have reported persisting or emerging symptoms weeks or months after the acute phase of a COVID-19 infection, even when the initial infection was mild or asymptomatic. Since data are limited on patients with a history of a mild acute phase, the pulmonary sequelae have been challenging to treat. The purpose of this study was to review diagnostic testing sessions from patients referred to the pulmonary function lab for a diagnosis or symptoms of long COVID following a mild acute phase. The collection and presentation of this data aim to provide insight into the possible cause of persistent pulmonary symptoms in this specific patient population. Methodology A retrospective review of patients at a single center who received pulmonary function test (PFT) and 6-minute walk test (6MWT) for long COVID symptoms following a mild acute phase of COVID-19 was conducted. Adult subjects were identified through electronic medical records if they received services between March 1, 2020, and September 2, 2023. The records of 19 patients were included in this review. Data analysis A Pearson correlation coefficient was used to analyze the relationship between dyspnea, pulmonary function impairment severity, and fatigue. The relationship between dyspnea and 6-minute walk test distance (6MWTD) was analyzed using the phi correlation coefficient. Results Weak correlations were identified between the reported symptoms of dyspnea and the severity of airway impairment, gas exchange, and 6MWTD. There was a strong positive correlation between dyspnea and fatigue. The sample size limits the analysis, but the data substantiate the need for additional research. Conclusion The severity of lung function impairments did not appear to correlate with the severity of dyspnea in patients following a mild acute phase of COVID-19. Therefore, pulmonary function impairments did not appear to be the primary cause of dyspnea. However, the symptoms of dyspnea and fatigue may contribute to each other.
Indexed as
Identifiers
What OpenQuestion holds
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.