Pan, ManuelOjeda, SoledadVillanueva, ElenaChavarria, JorgeRomero, MiguelSuarez de Lezo, JavierMazuelos, FranciscoSegura, JoseCarrasco, FranciscoHidalgo, FranciscoLopez Aguilera, JoseRodriguez, SaraPuente, MiguelSuarez de Lezo, Jose2023-01-252023-01-252016-06-15Pan M, Ojeda S, Villanueva E, Chavarria J, Romero M, Suarez de Lezo J, et al. Structural Damage of Jailed Guidewire During the Treatment of Coronary Bifurcation Lesions: A Microscopic Randomized Trial. JACC Cardiovasc Interv. 2016 Sep 26;9(18):1917-24http://hdl.handle.net/10668/10472The study sought to compare the safety (resistance to damage) and efficacy (ability to cross the side branch) of polymer-coated and non-polymer-coated guidewires in the jailed wire technique used during the percutaneous treatment of bifurcation lesions. The jailed wire technique is a useful strategy in the treatment of bifurcation lesions by provisional stenting. However, these wires can be damaged or even be broken during their removal. We performed a randomized study in patients with bifurcation lesions treated by provisional stenting. The jailed wire technique was mandatory, and the types of guidewires, polymer-coated (n = 115) and non-polymer-coated (n = 120), were randomized. After the procedures, the wires were evaluated by stereoscopic microscopy. The induced damage in the wires was classified as follows: no damage, mild, moderate, or severe. The clinical characteristics were similar between patients treated with polymer-coated or non-polymer-coated wires. Polymer-coated wires were significantly (p  Jailed wires during interventional procedures of bifurcation lesions commonly showed microscopic damage. Polymer-coated wires were more resistant to retrieval damage and were more efficient in crossing the side branch ostium than non-polymer-coated wires. (Jailed Wire Technique in the Treatment of Coronary Bifurcations Lesions With Stent: Stereoscopic Microscopy Study; NCT02516891).enBifurcation lesionsJailed wire techniqueProvisional stentingAgedCardiac cathetersCoated materials, biocompatibleCoronary angiographyCoronary artery diseaseEquipment designEquipment failureFemaleHumansMaleMicroscopyMiddle agedPercutaneous coronary interventionPolymersProspective studiesSingle-blind methodSpainStentsTreatment outcomeresearch article27659568open accessAngiografía coronariaCatéteres cardíacosDiseño de equipoEnfermedad de la arteria coronariaFalla de equipoIntervención coronaria percutáneaMateriales biocompatibles revestidosMicroscopía10.1016/j.jcin.2016.06.0301876-7605https://doi.org/10.1016/j.jcin.2016.06.030