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Radial artery graft vasospasm.

E D Gabe1, J C Figal, J N Wisner

  • 1Clinical Cardiology Department, Instituto de Cardiologia y Cirugia Cardiovascular, Favaloro Foundation, Belgrano 1746 (1093), Buenos Aires, Argentina. gabe@cardioweb.net.ar

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|February 13, 2001
PubMed
Summary

This case report details a rare instance of radial artery graft spasm causing ventricular fibrillation after coronary artery bypass surgery. Prompt nitroglycerin administration successfully treated the spasm and resolved the arrhythmia.

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Electrophysiology
  • Vascular Surgery

Background:

  • Coronary artery bypass graft (CABG) surgery is a common procedure for treating coronary artery disease.
  • Radial artery grafts are increasingly utilized for CABG due to their availability and patency rates.
  • Postoperative complications, though infrequent, require thorough investigation and management.

Observation:

  • An unusual case of radial artery graft spasm occurred in the postoperative period following CABG.
  • The vasospasm was complicated by a severe cardiac arrhythmia, specifically ventricular fibrillation.
  • This represents the first documented instance of radial artery graft spasm precipitating such a significant arrhythmia.

Findings:

  • Angiography confirmed the presence of radial artery graft spasm.

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  • The ventricular fibrillation resolved spontaneously.
  • Intravenous nitroglycerin administration was effective in resolving the radial artery graft spasm.

    • Implications:

    • Highlights a rare but serious complication of radial artery grafting in CABG.
    • Emphasizes the importance of recognizing and managing vasospasm in arterial grafts.
    • Suggests nitroglycerin as a potential treatment for radial artery graft spasm-induced arrhythmias.