A Novel Technique for Retrieval of Dislodged Coronary Stent from Renal Artery: A Case Report.

Coronary artery stent (CAS) dislodgment is a rare complication in contemporary percutaneous coronary intervention (PCI), with migration to the renal artery being exceedingly uncommon. Herein, we present a case report of a 78-year-old female patient who was transferred to a PCI hub center after an unsuccessful PCI of the left anterior descending artery at a spoke center, leading to CAS migration to the left coronary cusp of the aortic valve. During retrieval, the stent further dislodged into the left inferior segmental renal artery. Multiple standard retrieval techniques failed, but the SpiderFX embolic protection device was eventually employed, successfully recovering the stent. Limited data exists on CAS dislodgment within the renal artery, with only two cases reported in the literature, highlighting the need for broader awareness of this rare complication. Although snare loop and distal balloon inflating technique are standard for stent retrieval, they may not always suffice. In these instances, the SpiderFX device may be effective for renal artery stent retrieval.