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  • Title: Percutaneous treatment of the left main coronary artery ostial obstruction following aortic valve replacement.
    Author: Placci A, Balducelli M, Casanova R, Maresta A.
    Journal: Ital Heart J; 2005 Sep; 6(9):775-7. PubMed ID: 16212083.
    Abstract:
    Iatrogenic left main coronary artery ostial stenosis is a rare and late life-threatening complication of aortic valve replacement. The exact causes of this critical condition, despite being still nowadays elusive, are possibly related to the insertion of perfusion catheters into the left coronary system for cardioplegia delivery. We describe the case of a 69-year-old man, with normal coronary arteries documented by preoperative coronary angiography before surgery, who developed 1 year after aortic valve replacement worsening effort angina. A second coronary angiography revealed a severe left main ostial stem stenosis, which was successfully treated by sirolimus-eluting stent deployment. This case demonstrates a new percutaneous approach of this poorly understood, yet potentially fatal complication following aortic valve replacement.
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