Acute Bronchiolitis Due to Respiratory Syncytial Virus

Respiratory syncytial virus (RSV) is a leading cause of acute lower respiratory tract infection in infants and young children and contributes substantially to pediatric emergency department (ED) visits and hospitalizations. In Türkiye, nationally representative prospective data describing the epidemiology, clinical spectrum, and resource utilization of RSV-positive children presenting to pediatric EDs remain limited. This multicenter prospective observational study aims to characterize demographic and clinical features of RSV-positive children under 5 years of age presenting to participating pediatric EDs across two consecutive RSV seasons, and to quantify key healthcare utilization outcomes, including ED observation duration, hospitalization, and intensive care unit (ICU) admission.

To assess the efficacy of mucociliary clearance techniques in non-hospitalised infants with a first episode of mild to moderate acute bronchiolitis.

The goal of this clinical trial is to compare the efficacy of hypertonic saline nebulization with adrenaline nebulization in the treatment of acute bronchiolitis in children. Main aim is to evaluate the following in both group of patients 1. Improvement in Wood-Downes clinical score (WDF score) in bronchiolitis 2. Length of Hospitalization