Cardiac pacing in early infancy.
D002304:Cardiac Pacing, Artificial; D006327:Heart Block / Q000209:etiology / Q000628:therapy*; D006345:Heart Septal Defects, Ventricular / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D007223:Infant; D011183:Postoperative Complications; D011664:Pulmonary Valve / Q000002:abnormalities*