title: Longitudinal stent deformation elongating to left main trunk.
abstract: A 67-year-old woman was admitted with an acute coronary syndrome. Angiographic examination revealed diffuse severe stenosis of the left circumflex artery. A Pressure Wire Certus (St. Jude Medical, St. Paul, MN, USA) was passed to the second post-lateral (PL) branch. To prevent side-branch occlusion, a SION wire (Asahi Intecc Co., Aichi, Japan) was left in the first PL branch, and a SION blue wire (Asahi Intecc) was placed in the second obtuse marginal branch. We implanted an everolimus-eluting stent (PROMUS Element 2.5 × 24 mm, Boston Scientific, Natick, MA, USA) in the culprit lesion. After retrieving the protection wire in first PL branch with resistance, we performed post-dilatation. However, the intravascular ultrasound images showed that the proximal portion of the implanted stent had elongated approximately 2 mm to the left main trunk (LMT), although the position of the distal edge of the stent was unchanged. We decided to additionally place a stent from the ostium of the LMT to the proximal left anterior descending coronary artery, and a biolimus-eluting stent (NOBORI 3.0 × 18 mm, Terumo Co., Tokyo, Japan) was implanted successfully. Longitudinal stent elongation might be caused by the small number of links between the hoops of a stent, originally intended to improve deliverability.
authors.affiliation: Division of Cardiology, Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa, Kanagawa, 251-8511, Japan, matsuken_22@yahoo.co.jp.
authors.forename: Kensuke
authors.initials: K
authors.lastname: Matsushita
authors.forename: Kentaro
authors.initials: K
authors.lastname: Arakawa
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Hibi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Kimura
authors.forename: Satoshi
authors.initials: S
authors.lastname: Umemura
authors.forename: Hideo
authors.initials: H
authors.lastname: Himeno
mesh_terms: D000368:Aged; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000379:methods; D023921:Coronary Stenosis / Q000601:surgery*; D003331:Coronary Vessels / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects / Q000379:methods; D011859:Radiography; D015607:Stents / Q000009:adverse effects*; D018084:Ultrasonography, Interventional