The clinical significance of the incorporation of tissue Doppler imaging into low-dose Dobutamine stress echocardiography in patients with aortic stenosis prior to Transcatheter aortic valve implantation
Abstract Background Low-dose dobutamine stress echocardiography (DSE) is indicated in patients with low flow (stroke volume index [SVi] < 35 ml/m2) low gradient (mean pressure gradient < 40 mmHg) and left ventricular ejection fraction (LVEF) < 50% aortic stenosis (AS) to assess LV contracti...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2020-09-01
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Series: | BMC Cardiovascular Disorders |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12872-020-01700-0 |