重症左室機能不全および大心室中隔欠損を伴う新生児大動脈狭窄の端々切除術：生後23日児の症例報告

Coarctation of the aorta (CoA) may occur alone or in association with other congenital heart defects, including ventricular septal defect (VSD). The coexistence of CoA with a large VSD and decreased left ventricular ejection fraction (LVEF) in neonates is uncommon and presents significant diagnostic and therapeutic challenges. We report the case of a 23-day-old female infant who presented with acute respiratory distress and was found to have CoA, a large membranous VSD, severe pulmonary hypertension, and markedly decreased LVEF. The patient underwent urgent surgical repair consisting of end-to-end CoA resection and pulmonary artery banding. Postoperatively, she demonstrated rapid hemodynamic improvement and recovery of ventricular function. This case highlights the importance of early recognition and timely surgical intervention in neonates presenting with complex CoA physiology and severe ventricular dysfunction.