Is left ventriculotomy feasible for muscular ventricular septal defects in infants?
Optimal management of muscular ventricular septal defects (MVSDs) remains controversial. Left ventriculotomy is the cornerstone of surgical repair but is frequently complicated by residual shunts, left ventricular dysfunction, apical aneurysm, or arrhythmias. In this study, we evaluated the long-term outcomes of surgical repairs in infants with isolated MVSDs. We retrospectively analyzed clinical data from 56 children with MVSDs (31 males, 25 females). Follow-up by questionnaire and Doppler echocardiography was performed at discharge and between 2 and 124 months after surgery. Patient age was 2 to 40 months (median, 21 months) and weight was 3.0 to 15.3 kg (median, 5.3 kg). Two patients died after surgery (hospital mortality, 3.57%). One patient with MVSDs died of low cardiac output caused by the long duration of cardiopulmonary bypass. Another patient with Swiss cheese MVSD received a single patch closure but died of low cardiac output immediately after cardiopulmonary bypass. Immedia
