Article (Scientific journals)
Stratification of single-vessel coronary stenosis by ischemic threshold at the onset of wall motion abnormality during continuous monitoring of left ventricular function by semisupine exercise echocardiography.
Garot, J.; Hoffer, E. P.; Monin, J. L. et al.
2001In Journal of the American Society of Echocardiography, 14 (8), p. 798-805
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Keywords :
Adult; Aged; Coronary Angiography; Coronary Disease/physiopathology/ultrasonography; Coronary Vessels/physiopathology/ultrasonography; Echocardiography; Exercise Test; Female; Humans; Male; Middle Aged; Myocardial Ischemia/physiopathology/ultrasonography; Reproducibility of Results; Supine Position/physiology; Ventricular Dysfunction, Left/physiopathology/ultrasonography
Abstract :
[en] We studied the relation between the ischemic threshold at the onset of wall motion abnormality on exercise echocardiography (EE) and the severity of coronary stenosis in patients with 1-vessel coronary artery disease (CAD). We screened 216 consecutive patients who underwent coronary angiography and EE for suspected CAD. Ninety-five (74 men; age, 56 +/- 12 years) satisfied the study criteria, that is, the presence of 1-vessel disease or no evidence of CAD on angiography and a normal baseline echocardiogram. Eighty-seven patients had 1-vessel CAD on angiography, and exercise-induced wall motion abnormality occurred in 73 (77%). Optimal cutoff values of percent diameter stenosis and minimal lumen diameter for predicting a positive EE were 61% (sensitivity and specificity of 76%) and 1.12 mm (sensitivity and specificity of 74%). Among patients with positive EE, heart rate-blood pressure product at ischemic threshold was correlated with quantitative coronary stenosis (r = -0.72, P <.001). The ischemic threshold from continuous monitoring of left ventricular function during semisupine EE is correlated with the severity of coronary stenosis among patients with 1-vessel disease and a normal resting echocardiogram.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Garot, J.
Hoffer, E. P.
Monin, J. L.
Duval, A. M.
Pierard, Luc ;  Université de Liège - ULiège > Département des sciences cliniques > Cardiologie - Pathologie spéciale et réhabilitation
Gueret, P.
Language :
English
Title :
Stratification of single-vessel coronary stenosis by ischemic threshold at the onset of wall motion abnormality during continuous monitoring of left ventricular function by semisupine exercise echocardiography.
Publication date :
2001
Journal title :
Journal of the American Society of Echocardiography
ISSN :
0894-7317
eISSN :
1097-6795
Publisher :
C.V. Mosby Company, United States - Missouri
Volume :
14
Issue :
8
Pages :
798-805
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 July 2014

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