title: [Endocardial dual-chamber stimulation in an anomalous persistent left superior vena cava].
abstract: A persistent left superior vena cava was noted in a 63-year-old woman during pacemaker implantation because of sinus bradycardia and AV dissociation. During atrial test stimulation a 2 degree AV block occurred at a rate of only 110/min and dual-chamber provision was thus necessary. Both catheters were introduced into the right heart via the coronary sinus, but placement of the right-ventricular lead was made more difficult than usual because of looping. One year later pacemaker function (DDI mode) was unchanged and the patient symptom-free.
authors.affiliation: Medizinische Klinik, Bereich Kardiologie, Zentralkrankenhaus Links der Weser, Bremen.
authors.forename: H E
authors.initials: HE
authors.lastname: Scherer
authors.forename: K H
authors.initials: KH
authors.lastname: Lindner
authors.forename: H J
authors.initials: HJ
authors.lastname: Engel
mesh_terms: D006328:Cardiac Catheterization / Q000379:methods; D004566:Electrodes; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011859:Radiography; D012804:Sick Sinus Syndrome / Q000000981:diagnostic imaging / Q000628:therapy; D014683:Vena Cava, Superior / Q000002:abnormalities* / Q000000981:diagnostic imaging
vernacular_title: Endokardiale Zwei-Kammer-Stimulation bei singulärer linkspersistierender oberer Hohlvene.