Atypical Patent Ductus Arteriosus
The Use of a Vasopressor Agent as a Diagnostic Aid
Approximately 95 per cent of patients with patent ductus have characteristic machinery murmurs. Five per cent have only systolic murmurs. In such patients, the intravenous or intramuscular administration of a pressor substance, mephentermine, may bring out a continuous murmur. This simple test is a useful adjunct in diagnosis.
- © 1959 American Heart Association, Inc.