Interv Akut Kardiol 2012; 11(3-4): 154-156

Coronary stent fracture as a cause of acute myocardial infarction

Vladimír Rozsíval, Jan Matějka

Kardiologické centrum AGEL, Pardubice

46 years old woman was admitted because of acute anterior myocardial infarction with ST segment elevations (STEMI). Two years ago

was she treated with drug eluting stent (sirolimus) 2.5x28mm to the second section of left anterior descendens (LAD) artery. Cause of

STEMI was stent fracture (SF) with small gap in bend. Stent was straighten by guide wire with restoring flow partially. After predilatation

with balloon, two stents were implanted (DES) with everolimus. One month later coronary arteriography and intracoronary ultrasound

(IVUS) were performed with favorable finding. SF with gap in stent structure owing to thrombosis is one of possible causes of STEMI.

SF occurrence is detected less often, but is probably possible cause of in stent restenosis particularly in DES. Methods for SF detection

and treatment are not exactly defined. Among possibly causes belong vessel tortuosity, angulation, long and rigid stents. Therapy of

SF is discussed.

Keywords: coronary stent, fracture, percutaneous coronary intervention

Published: May 11, 2012  Show citation