Effect of rapid timed injection in various phases of cardiac cycle on value of aortic regurgitation in man estimated by indicator dilution technique.
نویسندگان
چکیده
منابع مشابه
Comparison of Dilution Technics Using Aortic Injection with Upstream Sampling for Assessment of Aortic Regurgitation.
• Warner and Toronto have described a method for detecting and quantitating aortic regurgitation. This method involves simultaneous recording of indicator dilution curves from the left radial and femoral arteries following injections, at specific phases of the cardiac cycle, into the descending aorta at and downstream from the origin of the left subclavian artery. From these measurements they d...
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Cardiac outputs calculated from left ventricular indicator dilution curves were compared to outputs calculated from pulmonary arterial curves in 58 patients with a variety of cardiac abnormalities. Cardiac outputs calculated from left ventricular and pulmonary arterial curves differed by only 0.037 ± 0.052 LI mm. Individual measurements of cardiac output using left ventricular curves had an est...
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A PREVIOUS STUDY from this laboratory analyzed the effect of mitral regurgita-tion on the validity of the indicator-dilution determination of cardiac output.1 The potential problem of unrecognized early recircula-tion of indicator particles on the primary indicator time-concentration curve2 3 was discussed. The purpose of this report is to extend these observations to patients with aortic regur...
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T HE shape of an indicator-dilution curve is determined by at least 4 variables: cardiac output, the volume between the injection site and the sampling site, the presence of a left-to-right intracardiac shunt, and the presence of valvular regurgitation.1-3 In the absence of an intracardiac shunt and valvular regurgitation, one can predict the downslope of the arterial dilution curve, using the ...
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ورودعنوان ژورنال:
- British heart journal
دوره 34 4 شماره
صفحات -
تاریخ انتشار 1972