The trap device retrieves the detached stent that is floating within the ascending aorta

Background Coronary stent dislodgement is a relatively infrequent iatrogenic complication associated with percutaneous coronary intervention (PCI). Such dislodgement can result in severe outcomes, including vascular embolism, coronary rupture, malignant arrhythmia, and even fatal complications like death. Addressing stent dislodgement promptly and effectively is crucial. Case summary: We present a case involving a patient who underwent a second PCI after having a stent implantion in the left anterior descending artery (LAD). During this procedure, a new stent became dislodged and floated into the ascending aorta due to the guidewire inadvertently passing through the mesh of the pre-existing stent. Finally, the disloaded stent was successfully retrieved using a snare device. Discussion The stent dislodgement occurred because the guidewire traversed the mesh of the original stent, which extended into the left main coronay (LM). This misplacement led to the dislodgement and deformation of the new stent as it was being positioned in the left circumflex artery (LCX).