title: A novel side branch protection technique in coronary stent implantation: Jailed Corsair technique.
abstract: Side branch occlusion, which was one of the common complications in percutaneous coronary interventions, was closely associated with cardiac death and myocardial infarction. Clinical guidelines also support the importance of preservation of physiologic blood flow in SB during PCI to bifurcation lesions. In order to avoid side branch occlusion during stent implantation, we often performed the jailed wire technique, in which a conventional guide wire was inserted to the side branch before stent implantation to the main vessel. However, the jailed wire technique could not always prevent side branch occlusion. In this case report, we described a case of 72-year-old male suffering from angina pectoris. Coronary angiography revealed the diffuse calcified stenosis in the proximal and middle of left anterior descending coronary artery, and the large diagonal branch originated from the middle of the stenosis. To prevent side branch occlusion, we performed a novel side branch protection technique by using the Corsair microcatheter (Asahi Intecc, Nagoya, Japan). In this case report, we illustrated this "Jailed Corsair technique", and discussed the advantage compared to other side branch protection techniques such as the jailed balloon technique.
authors.affiliation: Department of Cardiology, Japanese Red Cross Ashikaga Hospital, Tochigi, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Numasawa
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan. Electronic address: ksakakura@jichi.ac.jp.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Sakakura
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Yamamoto
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
authors.forename: Shingo
authors.initials: S
authors.lastname: Yamamoto
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Taniguchi
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Fujita
authors.affiliation: Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
authors.forename: Shin-Ichi
authors.initials: SI
authors.lastname: Momomura
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D008297:Male; D062645:Percutaneous Coronary Intervention / Q000295:instrumentation* / Q000379:methods*; D015607:Stents; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional; D061205:Vascular Calcification / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*
keywords: Corsair; Microcatheter; Percutaneous coronary intervention; Side branch