Trans--pulmonary arterial repair of supracristal ventricular septal defects in infancy

Area of Science:

• Cardiovascular Surgery
• Pediatric Cardiology
• Medical Technology

Background:

• Large supracristal ventricular septal defects (VSD) in infants often present with severe pulmonary hypertension.
• Traditional surgical approaches may involve ventriculotomy, which carries risks, especially in this patient population.

Purpose of the Study:

• To evaluate the efficacy and safety of a trans-pulmonary arterial approach for VSD repair in young children.
• To assess the suitability of this technique in cases with severe pulmonary hypertension.

Main Methods:

• Retrospective review of five pediatric patients (2 months to 2 years) with isolated large supracristal VSD and severe pulmonary hypertension.
• Surgical correction performed between April 1978 and November 1979 using a trans-pulmonary arterial approach.

Main Results:

• All five patients underwent successful VSD repair without residual defects.
• Postoperative electrocardiograms (ECGs) showed no intraventricular conduction abnormalities.
• The trans-pulmonary arterial approach facilitated excellent surgical exposure and accurate suture placement.

Conclusions:

• The trans-pulmonary arterial approach is a safe and effective method for correcting large supracristal VSD in infants with severe pulmonary hypertension.
• This technique avoids ventriculotomy and utilizes the dilated pulmonary artery for improved surgical access.
• Excellent short-term outcomes were achieved, with no residual defects or conduction abnormalities.