title: VDD pacing from the middle cardiac vein via a persistent left superior vena cava.
abstract: We report a combination of unusual features demonstrating a permanent pacemaker implantation of a single-pass VDD lead by way of an anomalous persistent left superior vena cava in the middle cardiac vein. The ventricular stimulation resembled a right bundle branch block QRS morphology and was successfully synchronized by spontaneous atrial activity. This case illustrates an alternative approach of effective VDD pacing and sensing in patients with such a venous anomaly when other standard implantation sites fail.
authors.affiliation: Department of Cardiology, Patras University Medical School, Rio, Greece.
authors.forename: J A
authors.initials: JA
authors.lastname: Chiladakis
authors.forename: D
authors.initials: D
authors.lastname: Siablis
authors.forename: A S
authors.initials: AS
authors.lastname: Manolis
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D005260:Female; D006801:Humans; D013350:Subclavian Vein / Q000601:surgery*; D017180:Tachycardia, Ventricular / Q000628:therapy; D016896:Treatment Outcome; D014683:Vena Cava, Superior / Q000601:surgery*; D014693:Ventricular Fibrillation / Q000628:therapy