Evaluation of Patients with Chronic Cough Referred to Pediatric Pulmonology Outpatient Clinic

Abstract

Objective: A cough that lasts longer than four weeks in children is called chronic cough. The aim of this study is to determine the underlying causes of chronic cough. Material and Methods: Patients aged 0-18 years who were referred to Şanlıurfa Training and Research Hospital pediatric pulmonology outpatient clinic between 27 December 2021 and 30 June 2022 due to chronic cough were enrolled. Patients with known cystic fibrosis, primary ciliary dyskinesia, interstitial lung disease, asthma, bronchopulmonary dysplasia were excluded from the study. The “CHEST Guideline and Expert Panel Report” guideline was used in the approach to chronic cough. Results: 153 patients were included in this study. The most common causes of chronic cough were asthma (30.7%), protracted bacterial bronchitis (20.3%), and upper respiratory tract cough syndrome (11.1%). Wet cough was present in 60.8% of the patients with chronic cough and the most common diagnosis in patients with wet cough were protracted bacterial bronchitis (33.3%), pneumonia and other lung infections (17.2%) and bronchiectasis (12.9%). The most common diagnoses were asthma (68.3%), upper airway cough syndrome (6.7%), and natural recovery (6.7%) in patients with dry cough. Failure to thrive was more common in patients with wet cough than patients with dry cough (p<0.030) and fever, weight loss and desaturation were only present in patients with wet cough. Conclusion: The most common reasons are asthma, protracted bacterial bronchitis and upper airway cough syndrome. The differential diagnosis should be made by pediatricians based on specific cough pointers, careful physical examination and tests performed in line with the recommendations of the guidelines.