title: Paradoxic response of the murmur of idiopathic hypertrophic subaortic stenosis to the Valsalva maneuver.
abstract: A case of documented severe idiopathic hypertrophic subaortic stenosis in which the Valsalva maneuver resulted in paradoxic attenuation of the systolic ejection murmur is presented. Such a response should not be considered incompatible with the diagnosis of this disease.
mesh_terms: D000328:Adult; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis*; D005260:Female; D006326:Heart Auscultation; D006337:Heart Murmurs; D006801:Humans; D014636:Valsalva Maneuver