The most common lung problem faced by a post-COVID patient is lung fibrosis. Clinical recovery is generally complete in mild-to-moderately severe COVID-19 cases but a small proportion of patients with severe disease may go on to develop lung fibrosis. Patient groups at the highest risk to develop lung fibrosis are the elderly, especially those requiring ICU stay and mechanical ventilation. No definitive therapy for managing this pulmonary fibrosis exists as of date, even though various options are being explored. This case series highlights three cases of post-COVID lung fibrosis and reviews the existing literature.

Introduction:The current guidelines for the diagnosis of pulmonary tuberculosis (PTB) are based primarily on the demonstration of acid-fast bacilli (AFB) on sputum microscopy and chest radiograph. Knowing various radiological manifestations and their association with sputum microscopy findings can allow for early diagnosis and early initiation of treatment.Aims:This study was performed to compare the chest radiograph features seen in sputum-positive and sputum-negative tuberculosis patients, respectively.Materials and Methods:It was a prospective observational study, which included 147 consecutive patients newly diagnosed and treated as PTB between Jan 2018 and July 2018. Chest X-ray was reviewed by 2 independent radiologists and the findings were compared between sputum-positive and sputum-negative PTB cases. The obtained data were analyzed by statistics using SPSS version 15 for Windows (SPSS Inc., Chicago, IL) and χ2 test and Student t test were used for statistical analysis. P values < 0.05 were considered statistically significant.Results:Out of a total of 147 patients, 38 (25 males and 13 females, mean age 35.23 ± 18.40) were sputum positive and 109 (77 males and 32 females, mean age 36.07 ± 18.15) were sputum negative. The frequency of patchy consolidation (78.94% vs 49.54%) and cavitation (36.84% vs 15.59%) was significantly higher in sputum-positive PTB (P < 0.05). Radiological lesions like nodular shadow (10.09% vs 2.63%), cystic lesion (13.76% vs 5.26%), fibrosis (12.84% vs 7.89%), miliary shadows (2.75% vs 2.63%), and pleural effusion (1.83% vs 0%) were seen more commonly with sputum-negative PTB but the difference was not statistically significant for any of these features. Sputum-positive PTB tends to occur more commonly on the left side (47.36%) compared with sputum-negative PTB (27.52%) (P < 0.05). 34.21% and 35.77% of the chest X-ray lesions were bilateral in sputum-positive and sputum-negative PTB, respectively.Conclusion:Patchy infiltration and cavitation on chest X-ray are seen more frequently in sputum-positive cases of PTB compared with sputum-negative cases.

IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing COVID-19 disease is the third coronavirus to have emerged in the last 20 years. The COVID-19 infection causes more severe illness in patients with comorbid diseases, especially in patients with diabetes, hypertension and kidney failure. MethodsThis is a retrospective study using electronic records and laboratory data of adult patients hospitalised at All India Institute of Medical Sciences (AIIMS), Patna between May 1st, 2020 and March 31st, 2021, who were diagnosed with COVID-19 and needed haemodialysis. The demographic characteristics, co-morbidities, symptoms, clinical course, laboratory parameters, and treatments were recorded. The aim of this study is to evaluate the clinical profile and outcome of patients on hemodialysis with COVID-19 infection. ResultsThe study included 261 COVID-19 patients who needed haemodialysis. The most common symptoms on admission were fever (72.8%), cough (64.3%) and dyspnoea (46.6%). The mean age was 58.4 +/-15 years. A total of 195 patients (74.7%) were male. The most common co-morbid condition was hypertension (85.1%) followed by diabetes (71.9%). A total of 118 (45.2) patients had acute on chronic kidney disease (CKD), 40 (15.3) were on maintenance haemodialysis (MHD) and 103 (39.5) were having acute kidney injury (AKI). Eight patients were renal transplant recipients. At presentation, 183 (70.1%) patients were having mild to moderately severe infection and 78 (29.9%) patients were having severe disease. A total of 213 patients required ICU admissions, 186 (75.3%) of whom required invasive ventilation. Overall mortality was 66% (172/261) and the rest were discharged. ConclusionThe study suggests that COVID-19 disease has a significantly more severe course and poorer outcome in patients requiring haemodialysis.