title: [A single left superior vena cava. Pacemaker implantation].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006329:Heart Conduction System / Q000196:embryology; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000628:therapy; D012848:Sinoatrial Block / Q000628:therapy; D014683:Vena Cava, Superior / Q000002:abnormalities*
vernacular_title: Vena cava superior izquierda única. Implante de marcapaso.