Myocardial infarction after cryoablation surgery for Wolff-Parkinson-White syndrome.
A 48-year-old woman with Wolff-Parkinson-White syndrome underwent surgical division of the accessory pathway in the left lateral wall. At 6 months after the procedure, she developed dyspnea and chest oppression. Coronary angiography revealed total occlusion in the left circumflex coronary artery (segment 13) at the exact site where cryoablation had been performed. The coronary occlusion was treated with an intracoronary bolus injection of urokinase (960,000 U) and subsequent percutaneous transluminal balloon angioplasty. No significant residual stenosis remained after the balloon angioplasty, and no further evidence of myocardial ischemia was noted for 13 years to date after the procedure.
Watanabe
Hiroshi
H
Division of Thoracic and Cardiovascular Surgery and Cardiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Niigata 951-8510, Japan.
Hayashi
Jun-ichi
J
Aizawa
Yoshifusa
Y
D001283:Atrioventricular Node / Q000601:surgery; D003452:Cryosurgery / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology*; D011183:Postoperative Complications; D014927:Wolff-Parkinson-White Syndrome / Q000601:surgery*