title: Permanent pervenous atrial synchronized ventricular pacing.
mesh_terms: D000368:Aged; D006328:Cardiac Catheterization; D003331:Coronary Vessels; D004562:Electrocardiography; D004566:Electrodes; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000628:therapy*; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008722:Methods; D010138:Pacemaker, Artificial; D014680:Veins