title: Atrial pacing via unilateral persistent left superior vena cava.
abstract: A patient who suffered from sinus node dysfunction and automatic atrial tachycardias underwent pacemaker implantation during which time a unilateral left superior vena cava was found. Despite the known difficulties in using this venous route, it was possible to place a transvenous endocardial screw-in lead in a stable position in the lower lateral wall of the right atrium.
mesh_terms: D000368:Aged; D000638:Amiodarone / Q000008:administration & dosage; D002037:Bundle-Branch Block / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D004567:Electrodes, Implanted; D004594:Electrophysiology; D005500:Follow-Up Studies; D006325:Heart Atria; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D013610:Tachycardia / Q000188:drug therapy / Q000503:physiopathology*; D013997:Time Factors; D014683:Vena Cava, Superior / Q000002:abnormalities*
chemical_list: D000638:Amiodarone