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The Contegra conduit: Late outcomes in right ventricular outflow tract reconstruction

Anthony A Holmes1, Steve Co, Derek G Human

  • 1Division of Pediatric Cardiovascular and Thoracic Surgery, BC Children's Hospital, Vancouver, British Columbia, Canada.

Annals of Pediatric Cardiology
|April 25, 2012
PubMed

Insights

The Contegra conduit shows a 93.9% survival rate for right ventricle outflow tract reconstruction. However, younger patients (<3 months), smaller conduits (12-16 mm), and truncus arteriosus increase reintervention risk.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Biomaterials in Medicine

Background:

  • The Contegra conduit is utilized for right ventricle outflow tract reconstruction.
  • Assessing clinical outcomes and performance of this conduit is crucial for surgical decision-making.

Purpose of the Study:

  • To evaluate the clinical outcomes of the Contegra conduit, including survival and reintervention rates.
  • To identify risk factors associated with early reintervention in patients receiving the Contegra conduit.

Main Methods:

  • A retrospective analysis of 49 Contegra conduit implantations between January 2002 and June 2009.
  • Data collection focused on early death, late death, and reintervention rates.
  • Patient age at implantation and follow-up duration were recorded.

Main Results:

  • The overall survival rate was 93.9% (3 deaths: 2 early, 1 late).
  • The reintervention rate was 19.6%, primarily due to distal conduit stenosis.
  • Significant risk factors for reintervention included implantation before 3 months of age, conduit diameter of 12-16 mm, and diagnosis of truncus arteriosus.

Conclusions:

  • The Contegra conduit offers a cost-effective solution, but larger calibers are limited.
  • Homograft conduits remain preferred for older children needing larger diameters (>22 mm).
  • Specific patient factors (age <3 months, truncus arteriosus) and conduit size (12-16 mm) are linked to higher reintervention rates.
Abstract

Keywords:
Contegraoutcomepulmonaryreinterventionrisk factor

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