Trans-aortic Alfieri stitch at the time of septal myectomy for hypertrophic obstructive cardiomyopathy.

Published

Journal Article

BACKGROUND: Systolic anterior motion (SAM) of the mitral valve, left ventricular outflow tract (LVOT) obstruction, and mitral regurgitation (MR) are known adverse outcomes that can occur after septal myectomy for hypertrophic obstructive cardiomyopathy. The objective of this study was to describe outcomes of a surgical technique to prevent these complications. METHODS: We have adopted a technique where we place an Alfieri stitch in the mitral valve through the aortotomy while performing septal myectomy. A retrospective review was performed and outcomes associated with this technique were noted. RESULTS: Twenty-four patients underwent septal myectomy and mitral valve repair using this technique. Mean age was 57 ± 10 years. Twenty patients were in class III/IV heart failure, and all had documented SAM. Mean LVOT gradient improved from 78 ± 48 mmHg preoperatively to 19 ± 20 mmHg after myectomy (p < 0.001). No patients had postoperative SAM, and no patients required a second aortic crossclamping for mitral repair. Seventeen of 19 patients with ≥mild MR had improvement in MR. During follow-up, 16 patients had no/trivial MR, seven had mild MR, and one had moderate MR. The mean postoperative mitral gradient was 4.5 ± 3.0 mmHg. Thirteen patients had postoperative complications including one death in a patient who developed a ventricular septal defect. CONCLUSIONS: Trans-aortic Alfieri stitch placement during septal myectomy is feasible in most cases as an additional tool to improve MR and minimize SAM. This technique may have a role in addressing mitral disease, such as a long anterior leaflet or fibrotic mitral valve, at the time of myectomy without the need for left atriotomy for mitral exposure.

Full Text

Duke Authors

Cited Authors

  • Shah, AA; Glower, DD; Gaca, JG

Published Date

  • August 2016

Published In

Volume / Issue

  • 31 / 8

Start / End Page

  • 503 - 506

PubMed ID

  • 27401021

Pubmed Central ID

  • 27401021

Electronic International Standard Serial Number (EISSN)

  • 1540-8191

Digital Object Identifier (DOI)

  • 10.1111/jocs.12804

Language

  • eng

Conference Location

  • United States