Atrial Septal Defect – Definition, Types, and Clinical Manifestations (2024) Aseel Al-Humidi

Description

Analysis of Atrial Septal Defect (ASD), covering its definition, the most common type (Ostium secundum), developmental causes related to septum primum and secundum formation, associated defects (Ostium primum, PFO), clinical signs such as wide fixed splitting of S2 and pulmonic flow murmurs, and the resulting left-to-right shunt and chamber enlargement.