title: First case report in Japan of left ventricular pacing via a coronary vein in a patient with a mechanical tricuspid valve.
abstract: Transvenous endocardial pacemaker implantation is contraindicated in patients after prosthetic tricuspid valve replacement. A 65-year-old woman underwent both replacement of the mitral and tricuspid valves and pacemaker implantation with epicardial lead for bradycardia with chronic atrial fibrillation. At 2 years after this operation, the pacemaker's battery became low, and she was admitted for a battery exchange. To avoid frequent battery exchanges because of high stimulation thresholds, a left ventricular pacing lead was implanted via a coronary vein. There were no complications and the stimulation thresholds were stable. Coronary vein leads enable a minimally invasive approach, improve safety, and give effective stimulation for patients with a prosthetic tricuspid valve. This is the first case report in Japan of left ventricular pacing in such a patient.
authors.affiliation: Department of Thoracic andCardiovascular Surgery, Nihon University School of Medicine, 30-1Ooyaguchi-kamimachi, Itabashi-ku, Tokyo 173-8610, Japan.
authors.forename: Masataka
authors.initials: M
authors.lastname: Yoda
authors.forename: Toshiko
authors.initials: T
authors.lastname: Nakai
authors.forename: Kimie
authors.initials: K
authors.lastname: Okubo
authors.forename: Mitsumasa
authors.initials: M
authors.lastname: Hata
authors.forename: Akira
authors.initials: A
authors.lastname: Sezai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Hirayama
authors.forename: Kazutomo
authors.initials: K
authors.lastname: Minami
mesh_terms: D000368:Aged; D044466:Asian People; D001281:Atrial Fibrillation / Q000000981:diagnostic imaging / Q000628:therapy*; D001705:Bioprosthesis; D001919:Bradycardia / Q000000981:diagnostic imaging / Q000628:therapy*; D002304:Cardiac Pacing, Artificial; D017023:Coronary Angiography; D003331:Coronary Vessels; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D007564:Japan; D008943:Mitral Valve / Q000000981:diagnostic imaging; D010138:Pacemaker, Artificial; D014261:Tricuspid Valve / Q000000981:diagnostic imaging