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Am J Cardiol. 2006 Aug 1;98(3):367-9. Epub 2006 Jun 12.

Long-term follow-up in patients with lost coronary stents during interventional procedures.

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Cardiovascular Division, General Hospital Linz, Linz, Austria.


The aim of this retrospective study was to determine the incidence of stent loss during interventional procedures and to identify the associated immediate and long-term consequences of such loss. We evaluated 36 cases in which the stents were prematurely displaced from the stent delivery device. Five stents were completely removed from the vascular system successfully. Five stents could not be retrieved from the coronary circulation and led to significant adverse events in 3 patients, in whom the lost stents were not excluded by the placement of another stent. In 26 patients, peripheral embolism below the renal arteries occurred after successful stent retrieval from the coronary arteries. Of these 26 patients, 1 patient died during hospital stay, unrelated to the peripheral stent loss. Additional follow-up examinations were performed for 20 of the remaining 25 patients. Clinical patient status and the ankle-brachial index were evaluated 59 +/- 30 months after stent loss. All patients were free of any stent-related peripheral ischemic symptoms. We also attempted to determine the exact physical locations of the lost stents using computed tomography during follow-up. In 15 patients, we were able to detect the stent in the peripheral arteries using computed tomography. In conclusion, if stents cannot be retrieved from the coronary system, severe problems may occur. Stent loss with peripheral embolization is asymptomatic in long-term follow-up.

[Indexed for MEDLINE]

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