Noninvasive estimation of left atrial pressure with transesophageal echocardiography
نویسندگان
چکیده
منابع مشابه
Estimation of mean left atrial pressure from transesophageal pulsed Doppler echocardiography of pulmonary venous flow.
To determine whether pulmonary venous flow and mitral inflow measured by transesophageal pulsed Doppler echocardiography can be used to estimate mean left atrial pressure (LAP), we prospectively studied 47 consecutive patients undergoing cardiovascular surgery. We correlated Doppler variables of pulmonary venous flow and mitral inflow with simultaneously obtained mean LAP and changes in pressur...
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Transesophageal echocardiography (TEE) is widely used to detect left atrium (LA)/left atrial appendage (LAA) thrombi. In this paper, the local binary pattern variance (LBPV) features are extracted from region of interest (ROI). And the dynamic features are formed by using the information of its neighbor frames in the sequence. The sequence is viewed as a bag, and the images in the sequence are ...
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Background. Transesophageal echocardiogram (TEE) is superior to transthoracic echocardiogram (TTE) in detecting left atrial thrombus (LAT), a risk factor for stroke, but is costly and invasive, carrying a higher risk for complications. Aims. To determine the utility of using left atrial enlargement (LAE) on TTE to predict LAT on TEE. Methods. AIS patients who presented in 06/2008-7/2013 and und...
متن کاملNoninvasive estimation of the instantaneous first derivative of left ventricular pressure using continuous-wave Doppler echocardiography.
BACKGROUND The complete continuous-wave Doppler mitral regurgitant velocity curve should allow reconstruction of the ventriculoatrial (VA) pressure gradient from mitral valve closure to opening, including left ventricular (LV) isovolumic contraction, ejection, and isovolumic relaxation. Assuming that the left atrial pressure fluctuation is relatively minor in comparison with the corresponding L...
متن کاملEvolution of Left Atrial Thrombus with Anticoagulant Therapy -Follow-up by Transesophageal Echocardiography
OBJECTIVES Atrial fibrillation is an important risk factor for systemic embolism. A number of clinical studies demonstrated the beneficial effect of anticoagulant therapy for the prevention of embolism. But there has been no study on the fate of left atrial thrombus demonstrated by transesophageal echocardiography in the course of anticoagulation therapy. METHODS Thirteen patients, demonstrat...
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ژورنال
عنوان ژورنال: Annals of Cardiac Anaesthesia
سال: 2015
ISSN: 0971-9784
DOI: 10.4103/0971-9784.159799