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Are discrete coronary artery fistulae different from coronary arteriovenous malformations?

Ufuk Demirkilic1, Celalettin Gunay, Cengiz Bolcal

  • 1Gulhane Military Medical Academy, Department of Cardiovascular Surgery, Etlik, Ankara, Turkey. udemirk-lilic@gata.edu.tr

Journal of Cardiac Surgery
|February 24, 2005
PubMed

Insights

Coronary arteriovenous malformations (CAVMs) differ from discrete coronary artery fistulae (CFA) in morphology and progression. Surgical repair of CAVMs requires internal suturing due to their complex, fragile nature.

Area of Science:

  • Cardiovascular Surgery
  • Congenital Heart Disease
  • Vascular Malformations

Background:

  • Coronary artery fistulae (CFA) are abnormal connections between a coronary artery and a cardiac chamber or great vessel.
  • Coronary arteriovenous malformations (CAVMs) represent a more complex form of coronary artery malformation.
  • Understanding the differences is crucial for effective surgical management.

Purpose of the Study:

  • To compare the properties of CAVMs with discrete CFAs.
  • To identify distinct morphological and progressive characteristics of CAVMs.
  • To inform surgical strategies for treating these conditions.

Main Methods:

  • Retrospective analysis of 17 patients with discrete CFA (Group 1) and 6 patients with CAVMs (Group 2).
  • Review of surgical techniques, including cardiopulmonary bypass usage.
  • Comparison of outcomes and procedural challenges between the two groups.

Main Results:

  • No operative mortality observed in either group.
  • CAVMs exhibited complex morphology and progression.
  • A modified surgical technique involving internal suturing via pulmonary arteriotomy was developed for CAVMs.

Conclusions:

  • CAVMs possess distinct morphological and complex progression properties compared to discrete CFAs.
  • Surgical repair of CAVMs is best achieved by suturing multiple drainage orifices internally within the chamber.
  • The fragile nature of CAVM vessels presents challenges for traditional suture ligation techniques.
Abstract

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