Stefadouros M A, Mucha E, Frank M J
Am J Cardiol. 1976 Jan;37(1):89-92. doi: 10.1016/0002-9149(76)90505-1.
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.
本文报告一例有记录的严重特发性肥厚性主动脉瓣下狭窄病例，其中瓦尔萨尔瓦动作导致收缩期喷射性杂音反常减弱。这种反应不应被视为与该疾病的诊断不相容。
