Conduction disturbances in patent ductus arteriosus. A study of 20 cases before and after surgery with determination of the P-R index.
D001145:Arrhythmias, Cardiac; D002318:Cardiovascular Diseases; D004373:Ductus Arteriosus / Q000175:diagnosis*; D004374:Ductus Arteriosus, Patent; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology*
DUCTUS ARTERIOSUS/diagnosis; ELECTROCARDIOGRAPHY; HEART BLOCK/etiology