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Optimizing Surgical Selection for Transposition With Left Ventricular Outflow Tract Obstruction.

Laura Seese1, Carlos Diaz Castrillon1, Luciana Da Fonseca Da Silva1

  • 1Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; Division of Pediatric Cardiothoracic Surgery, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.

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Summary
This summary is machine-generated.

The Rastelli and Nikaidoh operations for complex Transposition of the Great Arteries (TGA) with Left Ventricular Outflow Tract Obstruction (LVOTO) showed similar outcomes. Procedural selection based on pathoanatomy optimizes results for TGA-LVOTO patients.

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Area of Science:

  • Congenital heart surgery
  • Pediatric cardiology
  • Cardiovascular anatomy

Background:

  • Transposition of the Great Arteries (TGA) with Left Ventricular Outflow Tract Obstruction (LVOTO) presents complex surgical challenges.
  • Previous studies on Rastelli and Nikaidoh operations for TGA-LVOTO have not fully explored the anatomical factors influencing surgical choice.
  • Optimizing surgical outcomes in complex TGA requires a nuanced understanding of patient-specific anatomy.

Purpose of the Study:

  • To present a procedural selection process for complex TGA-LVOTO cases in the modern era.
  • To evaluate the anatomical drivers influencing the choice between Rastelli and Nikaidoh operations.
  • To optimize surgical outcomes for pediatric patients with TGA-LVOTO and related conotruncal anomalies.

Main Methods:

  • A single-center, retrospective study included pediatric patients who underwent either Nikaidoh or Rastelli operation.
  • The study period spanned from June 2004 to June 2021, covering TGA-LVOTO, congenitally corrected TGA-LVOTO, and double-outlet right ventricle TGA type-LVOTO.
  • Patient data were stratified based on the surgical procedure received (Nikaidoh, n=16; Rastelli, n=18).

Main Results:

  • Low incidence of postoperative complications and mortality was observed in both groups, with no significant differences.
  • Nikaidoh operation was more frequently chosen for patients with a larger pulmonary annulus (>5 mm), anterior/posterior great vessels, remote/restrictive VSD, and right ventricular hypoplasia.
  • Reoperation rates (44.0% vs 37.5%) and rates of catheter-based interventions were similar between the Nikaidoh and Rastelli groups.

Conclusions:

  • Procedural selection for conotruncal anomalies with discordant ventriculoarterial connections should be guided by pathoanatomic criteria.
  • Matching patient anatomy to the most suitable surgical procedure is crucial for optimal treatment outcomes.
  • This approach ensures that complex TGA-LVOTO patients receive tailored surgical management.