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[Atrioventricular discordance. Clinico-surgical experience 1990-2000]

C Alva1, S Jiménez, F David

  • 1Servicio de Cardiopatías Congénitas, Hospital de Cardiología, CMN Siglo XXI. Avenida Cuauhtémoc 330, Col. Doctores, México, D.F. alva1@prodigy.com.mx

Archivos Del Instituto De Cardiologia De Mexico
|March 21, 2001
PubMed

Insights

This study analyzed atrioventricular discordance, finding common associated lesions like ventricular septal defects. Surgical outcomes show high mortality and pacemaker needs for atrioventricular block.

Area of Science:

  • Pediatric Cardiology
  • Congenital Heart Disease
  • Cardiac Surgery

Background:

  • Atrioventricular discordance is a complex congenital heart defect.
  • Understanding its variations and outcomes is crucial for surgical planning.

Purpose of the Study:

  • To determine the incidence of ventriculoarterial connections with atrioventricular discordance.
  • To identify associated cardiac lesions.
  • To evaluate surgical results, including mortality and complications.

Main Methods:

  • Retrospective analysis of patients diagnosed with atrioventricular discordance via echocardiography between 1990 and March 2000.
  • Detailed review of patient demographics, cardiac anatomy, associated lesions, and surgical interventions.

Main Results:

  • Thirty-six patients with atrioventricular discordance were identified, with ages ranging from infancy to adulthood.
  • The most frequent ventriculoarterial connection was discordant (77.7%). Ventricular septal defects with pulmonary stenosis or atresia were common associated lesions (58%).
  • Surgical interventions included palliative and corrective procedures, with one anatomical correction. High operative mortality (40.1%) and significant rates of postoperative atrioventricular block requiring pacemakers (40.1%) were observed.

Conclusions:

  • Right ventricular dysfunction is a notable complication in patients with atrioventricular discordance.
  • Surgical management of atrioventricular discordance is associated with high mortality and a substantial need for pacemakers due to atrioventricular block.
Abstract

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