title: Transvenous pacemaker implantation via a unilateral left superior vena cava.
abstract: A 72-year-old man with a unilateral left superior vena cava and anomalous drainage of the inferior vena cava required permanent pacing. The anomalies were verified by venography and cardiac catheterization. Difficulties in implantation of a temporary and permanent pacemaker are described. A transvenous endocardial lead was placed in a stable position in the right ventricle. The pacemaker system has now functioned normally for 32 months.
mesh_terms: D000368:Aged; D002037:Bundle-Branch Block / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D006801:Humans; D008297:Male; D014683:Vena Cava, Superior / Q000002:abnormalities*