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Left ventricular retraining: theory and practice.

Richard G Ohye1, Ming-Sing Si1, Edward L Bove1

  • 1Section of Pediatric Cardiovascular Surgery, Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI.

Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
|May 6, 2015
PubMed
Summary
This summary is machine-generated.

Congenitally corrected transposition of the great arteries (c-TGA) presents repair challenges. Both physiologic and anatomic repairs have limitations, necessitating long-term monitoring for optimal patient outcomes.

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Area of Science:

  • Cardiology
  • Congenital Heart Disease
  • Pediatric Cardiac Surgery

Background:

  • Congenitally corrected transposition of the great arteries (c-TGA) involves complex heart connections.
  • Physiologic repair, maintaining the right ventricle as systemic, often leads to failure and tricuspid regurgitation.
  • Anatomic repair faces challenges, especially in late-presenting patients needing left ventricular retraining.

Purpose of the Study:

  • To review the outcomes of different surgical repair strategies for c-TGA.
  • To highlight the long-term challenges and risks associated with both physiologic and anatomic repairs.
  • To emphasize the need for continued monitoring in this patient population.

Main Methods:

  • Review of existing literature on surgical outcomes for c-TGA.
  • Analysis of long-term follow-up data for patients undergoing different repair types.
  • Discussion of clinical management strategies based on observed outcomes.

Main Results:

  • Physiologic repair is associated with poor long-term outcomes, including right ventricular failure and tricuspid valve issues.
  • Anatomic repair shows encouraging early/intermediate results but raises concerns about late left ventricular dysfunction.
  • Late-presenting patients undergoing anatomic repair require careful monitoring for ventricular adaptation.

Conclusions:

  • Neither repair strategy offers a definitive long-term solution for all c-TGA patients.
  • Long-term monitoring is crucial for understanding and managing late complications.
  • Further research is needed to optimize surgical approaches and improve outcomes for c-TGA.