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Related Experiment Videos

Transposition complexes with systemic obstruction.

C I Tchervenkov1, S J Korkola

  • 1Department of Cardiovascular Surgery, The Montréal Children's Hospital, Québec, Canada.

Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
|July 20, 2001
PubMed
Summary

The arterial switch operation is a preferred surgery for complex heart defects. A single-stage repair approach for transposition complexes with aortic arch obstruction shows excellent outcomes, avoiding staged procedures.

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Area of Science:

  • Pediatric Cardiac Surgery
  • Congenital Heart Disease
  • Surgical Innovation

Background:

  • Transposition of the great arteries and double-outlet right ventricle with subpulmonary ventricular septal defect are complex congenital heart malformations.
  • Associated lesions, particularly systemic obstruction, present significant surgical challenges.
  • Traditional staged approaches for aortic arch obstruction combined with intracardiac defects yield disappointing results.

Purpose of the Study:

  • To evaluate the efficacy of a single-stage surgical approach for complex transposition complexes with aortic arch obstruction.
  • To present outcomes using pulmonary homograft patch aortoplasty for aortic arch reconstruction during the primary repair.
  • To highlight the benefits of avoiding staged repairs and circulatory arrest when possible.

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Main Methods:

  • A retrospective review of 22 consecutive patients undergoing single-stage anatomic repair for transposition complexes with aortic arch obstruction.
  • Surgical technique involved simultaneous repair of intracardiac defects and aortic arch reconstruction using pulmonary homograft patch aortoplasty.
  • Focus on avoiding circulatory arrest in recent aortic arch reconstructions.

Main Results:

  • No early deaths occurred in the 22 patients.
  • One late death due to noncardiac causes and one case of recoarctation requiring balloon dilatation were reported.
  • All aortic arch reconstructions in the last 2 years were performed without circulatory arrest.

Conclusions:

  • A single-stage anatomic repair for transposition complexes with aortic arch obstruction is associated with superior outcomes compared to staged approaches.
  • Pulmonary homograft patch aortoplasty is an effective method for aortic arch reconstruction in this patient population.
  • Minimizing or avoiding circulatory arrest during complex congenital heart surgery is achievable and beneficial.