Quantitation of Valvular Regurgitation from Multiple Indicator-Dilution Curves
نویسندگان
چکیده
منابع مشابه
Quantitation of valvular regurgitation from multiple indicator-dilution curves.
normal subjects and iii patients with ilomiregurgitanit heart disease yielded a similar contour. This suggested that in the albseimce of reour-itation the pallameters of the distal (arterial) curve ca.n be predicted fromm the proximlmai ( pulm1nomary artery) culve. The distortion of the arterial curve byregurgitationi can timerefore l)e comnpared withi time undistorted )ulmmonmary lartery curve...
متن کاملCalculation of Cardiac Output from Indicator-dilution Curves in the Presence of Mitral Regurgitation.
M EIER and Zierlerl have lucidly presented the theory underlying the application of indicator dilution of the measurement of flow in the vascular bed. This theory is not violated by the presence of valve incompetence provided that indicator particles that recirculate and reenter the vascular system can be excluded from the primary indicator concentration-time curve. Valve incompetence results i...
متن کاملRemoval of distortion from indicator dilution curves with analog computer.
• In the usual procedure for determination of indicator dilution curves, the sensing or measuring device is placed at some distance from the sampling site. The fluid is transported by a sampling system, usually a cathe-ter, from the withdrawal site to the sensing point. This sampling system always introduces some distortion in the time-concentration curve, so that the recorded curve is not the ...
متن کاملIndicator-dilution curves during methoxamine infusion n patients with mitral valvular disease.
DURING intravenous infusion of a vasopressor agent (norepinephrine or methoxamine), the "Y" wave of the left atrial pressure or of the pulmonary artery wedge pressure in patients with predominant mitral insufficiency was significantly increased.'This change presumably reflects augmentation of the degree of regurgitation in these patients and is most likely the outcome of an acutely increased sy...
متن کاملDetection and assessment of mitral regurgitation by left atrial indicator-dilution curves.
IX THE CONTINUING search for an accurate method of assessing mitral regurgitation, an indicator has been injected into the left ventricle, and the subsequent dilution curves have been recorded from both the left atrium and a peripheral artery. ' With increasing mitral regurgitation, an increasing concentration of early appearing dye can be detected in the left atrium, when normally there is lit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Circulation
سال: 1958
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.18.4.623