Phonocardiographic Features of the Systolic Murmur in Pulmonary Artery Stenosis

From these reports it appears that the clinical recognition of the anomaly is difficult except in the presence of a continuous murmur radiating widely to one or both axillae and the back. In the majority of the reported cases, however, a basal systolic murmur was observed; this, too, often showed a wide lateral propagation suggestive of the diagnosis.