Long-term pervenous atrial pacing from the proximal portion of the coronary vein.
D000368:Aged; D000790:Angiocardiography; D001919:Bradycardia / Q000628:therapy; D006328:Cardiac Catheterization; D003331:Coronary Vessels; D004562:Electrocardiography; D004566:Electrodes; D006325:Heart Atria; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013902:Radiography, Thoracic; D013610:Tachycardia / Q000628:therapy; D013997:Time Factors; D014680:Veins; D014693:Ventricular Fibrillation / Q000628:therapy