title: [Recurrent microdislocation of pacemaker leads due to an aortic aneurysm of the aorta ascendens].
abstract: We report about a 79 years old female patient which was admitted due to a symptomatic AV block 3rd degree. The coronary angiography excluded a coronary artery disease and the echocardiography revealed a normal left ventricular systolic function. Therefore a dual-chamber pacemaker was implanted. Following two micro-dislocations of the right ventricular lead, which required operative revisions, a computed tomography of the heart was performed. This detected an aneurysm of the ascending aorta (5 cm maximum diameter) with compression of the superior caval vein. This case shows that a possible cause of recurrent micro-dislocations could be a pathological anatomy of the heart.
authors.affiliation: Department of Medicine-Cardiology, Charité Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Deutschland. barbara.bellmann@charite.de.
authors.forename: Barbara
authors.initials: B
authors.lastname: Bellmann
authors.affiliation: Department of Cardiology, Charité Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Deutschland.
authors.forename: Bogdan G
authors.initials: BG
authors.lastname: Muntean
authors.affiliation: Department of Cardiology, Charité Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Deutschland.
authors.forename: Verena
authors.initials: V
authors.lastname: Tscholl
authors.affiliation: Department of Cardiology, Charité Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Deutschland.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Biewener
authors.affiliation: Department of Cardiology, Charité Berlin Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Deutschland.
authors.forename: Mattias
authors.initials: M
authors.lastname: Roser
mesh_terms: D000368:Aged; D017545:Aortic Aneurysm, Thoracic / Q000150:complications* / Q000175:diagnosis; D001027:Aortography; D054537:Atrioventricular Block / Q000628:therapy*; D003251:Constriction, Pathologic / Q000175:diagnosis / Q000209:etiology; D004567:Electrodes, Implanted; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D010138:Pacemaker, Artificial; D012008:Recurrence; D014683:Vena Cava, Superior / Q000473:pathology
keywords: Aortic aneurysm; Lead dislocation; Pacemaker; Revision; Threshold