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Updated: Jan 19, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

Reoperation after isolated subaortic membrane resection.

Ziyad M Binsalamah¹, Zachary A Spigel¹, Huirong Zhu²

¹Division of Congenital Heart Surgery, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA.

Cardiology in the Young

|September 27, 2019

Summary

This summary is machine-generated.

Resecting subaortic membranes often requires reoperation. Performing a septal myectomy reduces reoperation risk, but aortic valve regurgitation necessitates ongoing monitoring after surgery.

Keywords:

Subaortic membrane aortic valve left-ventricular outflow tract

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Area of Science:

Cardiovascular Surgery
Pediatric Cardiology
Congenital Heart Disease

Background:

Subaortic membrane resection is frequently not curative.
Reoperation and aortic valve regurgitation are significant long-term concerns.

Purpose of the Study:

To identify factors linked to reoperation after subaortic membrane resection.
To assess aortic valve regurgitation as a predictor of reoperation.

Main Methods:

Retrospective analysis of 84 patients undergoing isolated subaortic membrane resection (1995-2018).
Kaplan-Meier and Cox models used for time-to-event analyses.
McNemar's test for paired categorical data.

Main Results:

14% of patients required reoperation within a median follow-up of 9.3 years.
Aortic valve regurgitation initially improved but later worsened to pre-operative levels.
Septal myectomy was significantly associated with reduced reoperation rates (p=0.004).

Conclusions:

Septal myectomy can decrease reoperation risk in subaortic membrane patients.
Serial monitoring for aortic valve degradation is crucial, even without initial regurgitation.