TY - JOUR
T1 - Usefulness of dobutamine echocardiography in distinguishing severe from nonsevere valvular aortic stenosis in patients with depressed left ventricular function and low transvalvular gradients
AU - deFilippi, Christopher R.
AU - Willett, DuWayne L.
AU - Brickner, M. Elizabeth
AU - Appleton, Christopher P.
AU - Yancy, Clyde W.
AU - Eichhorn, Eric J.
AU - Grayburn, Paul A.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1995/1/15
Y1 - 1995/1/15
N2 - The safety of dobutamine echocardiography in coronary artery disease is well established.27 This study shows that dobutamine can be given safely to patients with AS during noninvasive hemodynamic monitoring. The small number of patients in this study preclude assessment of the effect of dobutamine echocardiography on outcome. A large prospective study is indicated. Although the continuity equation does not contain a flow-dependent constant, its limitations include underestimation of LV outflow diameter and failure to properly align the Doppler beam.18 However, even if errors in velocity measurement occurred, directional changes should be valid since the transducer locations were identical at baseline and dobutamine infusion.
AB - The safety of dobutamine echocardiography in coronary artery disease is well established.27 This study shows that dobutamine can be given safely to patients with AS during noninvasive hemodynamic monitoring. The small number of patients in this study preclude assessment of the effect of dobutamine echocardiography on outcome. A large prospective study is indicated. Although the continuity equation does not contain a flow-dependent constant, its limitations include underestimation of LV outflow diameter and failure to properly align the Doppler beam.18 However, even if errors in velocity measurement occurred, directional changes should be valid since the transducer locations were identical at baseline and dobutamine infusion.
UR - http://www.scopus.com/inward/record.url?scp=0028857528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028857528&partnerID=8YFLogxK
U2 - 10.1016/S0002-9149(00)80078-8
DO - 10.1016/S0002-9149(00)80078-8
M3 - Article
C2 - 7810504
AN - SCOPUS:0028857528
SN - 0002-9149
VL - 75
SP - 191
EP - 194
JO - The American journal of cardiology
JF - The American journal of cardiology
IS - 2
ER -