Long-term Clinical and Angiographic Follow-up a Rare Stent Complication: Early Stent Deployment. A Case Report

Though early stent deployment is a rare complication, which was especially seen in the first generation stents loaded on balloon manually, it may lead to severe coronary ischaemia or life-threatening systemic embolism. In this report, a 73-year old patient who underwent coronary angiography for unstable angina pectoris and stent implantation to LAD lesion is presented. Four years previously a stent that could not be passed through the stenosis had stripped away from the delivery balloon. The undeployed stent was squeezed to vessel wall by inflating the balloon, and the lesion was dilated with the balloon only. In the control angiograms after one and 4 years, it was seen that the stent migrated to the distal part of LAD and stabilized in the same site and restenosis had not occurred. Thus, undeployed stents should be removed; in cases of failed removal procedure, squeezing the stent can be performed in the hope of no severe complication to arise.