Background The clinical course of COVID-19 may vary significantly. The presence of comorbidities prolongs the recovery time. The recovery in patients with mild-to-moderate symptoms might take 10 days, while in those with a critical illness or immunocompromised status could take 15 days. Considering the lack of data about predictors that could affect the recovery time, we conducted this study to identify them. Methods This cross-sectional study was implemented in the COVID-19 clinic of a teaching and referral university hospital in Tehran. Patients with the highly suggestive symptoms who had computed tomography (CT) imaging results with typical findings of COVID-19 or positive results of reverse transcriptase-polymerase chain reaction (RT-PCR) were enrolled in the study. Inpatient and outpatient COVID-19 participants were followed up by regular visits or phone calls, and the recovery period was recorded. Results A total of 478 patients were enrolled. The mean age of patients was 54.11 ± 5.65 years, and 44.2% were female. The median time to recovery was 13.5 days (IQR: 9). Although in the bivariate analysis, multiple factors, including hypertension, fever, diabetes mellitus, gender, and admission location, significantly contributed to prolonging the recovery period, in multivariate analysis, only dyspnea had a significant association with this variable (p = 0.02, the adjusted OR of 2.05; 95% CI 1.12–3.75). Conclusion This study supports that dyspnea is a predictor of recovery time. It seems like optimal management of the comorbidities plays the most crucial role in recovery from COVID-19.
Background Omicron (B.1.1.529) is the fifth variant of concern of SARS-CoV-2, which has several subvariants. Clinical features of BA.1 and BA.2 infections have been described in the literature, but we have limited information about the clinical profile of BA.5, which caused the seventh wave in Iran. Methods A prospective observational study was conducted on the BA.5 confirmed patients referred to Imam Khomeini Hospital Complex, Tehran, Iran, from 11th to 31st August 2022. The patients were divided into the two groups of outpatients and hospitalized patients, and their clinical, radiological, and laboratory data and outcomes were recorded and analyzed. Results We included 193 patients with confirmed BA.5 infection, of whom 48 patients (24·8%) were hospitalized. The mean age of the patients was 45·3 ± 16·5 years, and 113 patients (58·5%) were female. The mean number of days patients had symptoms was 6·8 ± 2·4 days. The most common symptoms were weakness (69·9%), sore throat (67·4%), myalgia (66·3%), hoarseness (63·7%), headache (55·4%), fatigue (54·9%), and dry cough (50·3%). Fever and dyspnea were significantly more observed in the hospitalized patients (p < 0·0001). The COVID-19 vaccination rate was significantly lower in hospitalized patients than in outpatients (35/48–72·9% vs. 140/145 − 96·6%, p < 0·0001). The most common underlying diseases were hypertension (16·1%), diabetes mellitus (9·8%), and cardiovascular diseases (9·8%), all of which were significantly more common in hospitalized patients. Lung opacities were observed in 81·2% of hospitalized patients. By the end of our study, 1·5% of patients died despite receiving critical care services. Conclusions Our findings suggested that BA.5 symptoms are more non-respiratory and usually improve within 7 days. Although the proportion of hospitalized patients is still significant, very few patients require intensive care. COVID-19 vaccination is effective in reducing the hospitalization rate. Trial registration Not applicable. This study is not a clinical trial.
Background: The outbreak of 2019-novel coronavirus has led to a high demand for finding effective antiviral agents. Preliminary experiments showed that Arbidol could inhibit coronavirus replication in vivo. There is limited data on the clinical efficacy of 2019-novel coronavirus-infected pneumonia (NCP). Therefore, we aimed to evaluate this medication based on clinical and laboratory results.Methods: The present study was designed as a clinical trial to investigate the advantages and disadvantages of this medicine compared to empirical treatment. For this purpose, multi-stage sampling was considered. 56 people were selected by accidental non-random sampling method. This sample size was subsequently divided into two groups by randomized block sampling (1:1). During the study, three patients left the case group. Their clinical symptoms were examined while taking these medicines in the disease course. The SPSS software was used for data analysis and the significance level was considered to be P<0.05.Results: On the seventh day, there were statistically significant differences in dry cough(p = 0.001), weakness(p = 0.004), gastrointestinal symptoms(p = 0.043) and shortness of breath (p = 0.001) between the two groups, and the Arbidol group had a faster recovery. During the disease course, there were statistically significant differences in Myalgia(p = 0.03), gastrointestinal symptoms(p = 0.047), and weakness(p = 0.007) were significantly different between the two groups.Conclusion: Symptoms improved faster in patients with mild to moderate disease who received Arbidol in their treatment regimen. In other words, adding Arbidol to the empirical treatment accelerated the recovery process of patients’ clinical symptoms.Registration: IR.TUMS.VCR.REC.1399.204, 04.13.2020 , http://ethics.research.ac.ir/IR.TUMS.VCR.REC.1399.204
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