3D-Transesophageal Echocardiography in Paradoxical Low-Flow, Low-Gradient Aortic Stenosis
نویسندگان
چکیده
منابع مشابه
Role of Transesophageal Echocardiography in the Diagnosis of Paradoxical Low Flow, Low Gradient Severe Aortic Stenosis
BACKGROUND AND OBJECTIVES Prior studies indicate that up to 35% of cases of severe aortic stenosis (AS) have paradoxical low flow, low gradient despite preserved left ventricular ejection fraction (LVEF). However, error in left ventricular outflow tract (LVOT) diameter may lead to misclassification. Herein, we determined whether measurement of LVOT diameter by transesophageal echocardiography (...
متن کاملParadoxical Low-Flow, Low-Gradient Aortic Stenosis
Low-flow, low-gradient aortic stenosis (AS) is a highly challenging condition in terms of diagnosis and therapeutic management. The transvalvular pressure gradient is inversely related to the square of aortic valve area (AVA) and directly related to the square of flow. Hence, a patient with severe AS may nonetheless present with a low gradient if his or her left ventricular (LV) output is reduc...
متن کاملParadoxical Low - Flow , Low - Gradient Aortic Stenosis : New
Ad Addr dress fo for Co Corr rres espo po p nd nden ence ce: : Philip ppe pe Pib ibar arot ot t, , DV
متن کاملLow "gradient", low flow aortic stenosis.
Correspondence to: Dr John Chambers, Cardiothoracic Centre, St Thomas Hospital, London SE1 7EH, UK; jboydchambers@ aol.com _________________________ A ortic stenosis is thought to have a long, asymptomatic latent phase during which the risk of sudden death is low. In fact symptoms can be revealed by treadmill exercise in a large proportion of apparently asymptomatic patients. Patients may limit...
متن کاملParadoxical Low-Flow, Low-Gradient Aortic Stenosis–a Tough Nut to Crack in Echocardiographic Diagnosis
Refer to the page 82-88 In this issue, Abudiab et al. 1) evaluated the characteristics of paradoxical low-flow low-gradient (PLF-LG) aortic stenosis (AS) among subjects who had been diagnosed with severe AS using conventional transthoracic echocardiography (TTE). The authors tried combining transesophageal echocardiography (TEE) with TTE to measure the left ventricular outflow tract (LVOT) diam...
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ژورنال
عنوان ژورنال: Revista Argentina de Cardiología
سال: 2015
ISSN: 0034-7000,1850-3748
DOI: 10.7775/rac.v83.i4.5689