[Diastolic compliance and indices of contractibility in aortic insufficiency].
A cine-angiographic study was carried out in eleven patients with major aortic incompetence, in two of whom there was an associated aortic stenosis. The ventricular end-diastolic volume is always greatly increased, disproportionately to the modest increase in end-diastolic pressure. The pressure-volume relationship during filling is therefore altered, and makes it possible for a normal end-diastolic compliance (dV/dP) TD to be preserved. The indices of contractility are markedly altered, despite the recent appearance of signs of poor tolerance. These findings argue in favour of a full haemodynamic investigation and of early corrective surgery.
D000328:Adult; D000368:Aged; D001022:Aortic Valve Insufficiency / Q000503:physiopathology*; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D001794:Blood Pressure; D002306:Cardiac Volume; D003187:Compliance; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction
Complicance diastolique et indices de contractilité dans l'insuffisance aortique