title: Dislodged and mechanically distorted stent stuck within a previously implanted drug-eluting stent.
abstract: Coronary stent loss during percutaneous coronary intervention is rare and is often associated with significant morbidity. Several retrieval techniques, overlying stent deployment and crushing, and surgical removal can be used to deal with a stent lost in the coronary system. We successfully treated a dislodged and mechanically distorted coil stent stuck within a previously implanted drug-eluting stent (DES) by stent-crush technique. This case might provide insight into the mechanisms responsible for the longitudinal fragility of cobalt alloy and coil-structure stents and stent fracture of DES. In the DES era, careful attention should be paid to such complications when attempting to deliver a stent to a distal vessel through a pre-existing DES.
authors.affiliation: Cardiovascular Division, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Watabe
authors.forename: Akira
authors.initials: A
authors.lastname: Sato
authors.forename: Tomoya
authors.initials: T
authors.lastname: Hoshi
authors.forename: Kenichi
authors.initials: K
authors.lastname: Obara
authors.forename: Ryo
authors.initials: R
authors.lastname: Kawamura
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Aonuma
mesh_terms: D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000628:therapy*; D020878:Device Removal; D054855:Drug-Eluting Stents; D006801:Humans; D008297:Male; D008875:Middle Aged; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects* / Q000295:instrumentation*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D018084:Ultrasonography, Interventional