title: Atrial synchronized pacing using a new transvenous technique.
mesh_terms: D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000628:therapy; D006339:Heart Rate; D006801:Humans; D008297:Male; D008722:Methods; D010138:Pacemaker, Artificial; D014680:Veins