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[Left coronaroventricular microfistula]

Fehmi Remadi1, Elyès Neffati, Chakir Missaoui

  • 1Service de cardiologie, CHU Sahloul, Sousse, Tunisie.

La Tunisie Medicale
|May 7, 2004
PubMed

Insights

Left coronaroventricular microfistulae are rare coronary artery abnormalities. Diagnosis relies on coronary arteriography, with medical management being the primary treatment for this condition.

Area of Science:

  • Cardiology
  • Vascular Malformations

Background:

  • Left coronaroventricular microfistulae represent a rare congenital or acquired anomaly.
  • These malformations involve abnormal connections between coronary arteries and the left ventricle.

Observation:

  • Eleven cases were diagnosed via coronary arteriography, with a mean patient age of 54.4 years.
  • Symptoms mimicked coronary artery disease, with ECG showing myocardial ischemia in 5 cases and positive exercise tests in others.

Findings:

  • Microfistulae most commonly originated from the left anterior descending artery (5 cases).
  • The coronary steal phenomenon is implicated as the primary mechanism for myocardial ischemia.
  • Diagnosis is confirmed by coronary arteriography, particularly with late-phase imaging.

Implications:

  • Coronary arteriography is crucial for diagnosing these rare fistulae.
  • Medical therapy is the mainstay of treatment.
  • Surgical or transcatheter interventions are reserved for severe, refractory cases.

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