Post-COVID-19 pneumonia: Long-term radiographic and spirometric outcomes

Objectives: This study aimed to evaluate the long-term radiographic and spirometric outcomes in patients who survived Coronavirus Disease 2019 (COVID-19) pneumonia in Brazzaville, with a focus on identifying the prevalence and contributing factors to persistent pulmonary sequelae. Materials and Methods: A cross-sectional study was conducted in multiple COVID-19 treatment centers in Brazzaville. A total of 52 patients, with a median age of 49.5 years, were assessed at least six months after recovery. Thoracic computed tomography (CT) scans were used to evaluate radiographic abnormalities, while spirometry assessed ventilatory function. Factors contributing to these abnormalities were analyzed, including age, comorbidities, and the severity of the acute illness. Results: Radiographic analysis revealed that 42.3% of patients had abnormal thoracic CT scans, with common findings including ground-glass opacities (52.2%), atelectasis (39.1%), and traction bronchiectasis (13%). Spirometric analysis revealed that 71.1% of patients had ventilatory disorders and predominantly restrictive patterns (51.4%). Advanced age, comorbidities (such as diabetes and hypertension), and the use of mechanical ventilation were significantly associated with radiographic abnormalities. Persistent respiratory symptoms, including chronic cough and dyspnea, were reported by 32.7% of patients, and 44.2% experienced impaired quality of life. Conclusion: These findings underscore the importance of long-term follow-up for COVID-19 pneumonia survivors, particularly those with persistent symptoms or comorbidities. Regular monitoring of respiratory function through spirometry and imaging is essential to managing long-term sequelae and improving patients’ quality of life.