title: [Transvenous pacemaker implantation in sick sinus syndrome associated with left superior vena cava].
mesh_terms: D001146:Arrhythmia, Sinus / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000379:methods*; D014683:Vena Cava, Superior / Q000002:abnormalities*