Danahy D T
Cathet Cardiovasc Diagn. 1978;4(2):199-205.
Three cases are reported of valvular aortic stenosis in which artifactual subvalvular chambers were recorded on pressure tracings. The pressure tracings were obtained during withdrawal of multiholed catheters from the left ventricle to the aortic root. Several recent reports have described the coexistence of valvular and subvalvular aortic stenosis. The cases reported here re-emphasize that a multiholed catheter, which is the type commonly used for retrograde left ventricular entry in a patient with valvular aortic stenosis, is unsatisfactory for the detection of coexisting subvalvular obstruction.
报告了3例瓣膜性主动脉狭窄病例，其压力描记图上记录到了人工造成的瓣膜下腔室。压力描记图是在多孔导管从左心室回撤至主动脉根部的过程中获得的。最近有几份报告描述了瓣膜性和瓣膜下主动脉狭窄并存的情况。此处报告的病例再次强调，对于瓣膜性主动脉狭窄患者，常用于逆行左心室进入的多孔导管并不适合检测并存的瓣膜下梗阻。
