Intracardiac and External Phonocardiographic Study in Infant with Patent Ductus Arteriosus and Pulmonary Hypertension

概要

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The 11 cases of infants with patent ductus arteriosus and pulmonary hypertension were presented, and were discussed on the external or intracardiac phonocardiographic features and hemodynamics. There were three different types of murmurs regarding configurations. First type was only a systolic murmur. Second type was a systolic murmur crescendo to the second heart sound and short early diastolic murmur. Third type was a harsh atypical continuous murmur, and its maximal intensity was in early systolic phase. Four patients showed only a systolic ejection murmur, but in all cases typical or atypical continuous murmur was recorded in the pulmonary artery. The value of the intracardiac Phonocardiogram in the diagnosis of patent ductus arteriosus during infancy, especially in the differential diagnosis of ventricular septal defect or pulmonic regurgitation, was discussed.
社団法人日本循環器学会の論文
1968-12-20