Cardiac output estimation with transesophageal Doppler
نویسندگان
چکیده
منابع مشابه
Combined doppler and phased-array echocardiographic estimation of cardiac output.
The capability of a pulsed Doppler flowmeter combined with a phased-array imaging system to measure volume flow was tested in vitro and in patients undergoing cardiac catheterization. The Doppler-phased-array system (DPA) was used to determine vessel diameter and a superimposed cursor was used to locate the range and angle of the Doppler sample volume. DPA estimates of continuous flow through t...
متن کامل[Comparison of cardiac output measurement in critical patients using transesophageal Doppler or thermodilution: a preliminary report].
BACKGROUND Cardiac output can be measured non invasively by transesophageal Doppler. This is an alternative to measure it by thermodilution with a catheter in the pulmonary artery. AIM To compare both methods of cardiac output measurement. MATERIAL AND METHODS Simultaneous measurement of cardiac output by transesophageal Doppler and thermodilution with a catheter in the pulmonary artery in ...
متن کاملDetermination of cardiac output by Doppler echocardiography.
Cardiac output determined by Doppler echocardiography was compared with that determined by thermodilution at rest and during dobutamine infusion in 10 patients (group A) and by the Fick method at rest in 11 patients (group B). All patients had angina pectoris without valvular heart disease. Maximum spatial blood velocity and cross sectional aortic area were estimated by the Doppler technique an...
متن کاملEsophageal Doppler: noninvasive cardiac output monitor.
In this article we describe the esophageal Doppler, a noninvasive, instantaneous cardiac output monitor. Its reliability has been demonstrated to be comparable to that of other current techniques used in the clinical arena to measure cardiac output. It helps guiding intravascular fluid resuscitation by quantifying the increase in flow in response to fluid challenges and by indicating the platea...
متن کاملMeasuring cardiac output during dobutamine infusion after off-pump coronary artery bypass: comparison of transesophageal echo-Doppler and thermodilution.
AIM To compare transesophageal echo-Doppler with thermodilution method for measuring cardiac output during dobutamine infusion after off-pump coronary artery bypass. METHOD Using transesophageal echo-Doppler and thermodilution methods, we measured cardiac output in 30 patients after off-pump coronary artery bypass, immediately before and 5, 15, and 30 min after the introduction of continuous ...
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ژورنال
عنوان ژورنال: Critical Care
سال: 1998
ISSN: 1364-8535
DOI: 10.1186/cc207