Predictive accuracy of echocardiographic response of mildly dyssynergic myocardial segments to low-dose dobutamine.
نویسندگان
چکیده
Low-dose dobutamine echocardiography has a high sensitivity for predicting functional recovery after revascularization. In segments with mild wall motion abnormalities, the specificity of the technique is rather low, suggesting overestimation of functional recovery in these segments.
منابع مشابه
Impact of severity of coronary artery stenosis and the collateral circulation on the functional outcome of dyssynergic myocardium after revascularization in patients with healed myocardial infarction and chronic left ventricular dysfunction.
The aim of this study was to assess the influence of the severity of coronary artery stenosis and the grade of collateral circulation on myocardial viability in patients with chronic left ventricular (LV) dysfunction undergoing coronary artery bypass grafting. Forty patients (age 59 +/- 8 years) with old myocardial infarction were studied by dobutamine stress echocardiography (DSE) before coron...
متن کاملIntravenous myocardial contrast echocardiography predicts regional and global left ventricular remodelling after acute myocardial infarction: comparison with low dose dobutamine stress echocardiography.
OBJECTIVE To assess the role of intravenous myocardial contrast echocardiography (MCE) in predicting functional recovery and regional or global left ventricular (LV) remodelling after acute myocardial infarction (AMI) compared with low dose dobutamine stress echocardiography (LDSE). METHODS 21 patients with anterior AMI and successful primary angioplasty underwent MCE and LDSE during the suba...
متن کاملCARDIOVASCULAR MEDICINE Intravenous myocardial contrast echocardiography predicts regional and global left ventricular remodelling after acute myocardial infarction: comparison with low dose dobutamine stress echocardiography
Objective: To assess the role of intravenous myocardial contrast echocardiography (MCE) in predicting functional recovery and regional or global left ventricular (LV) remodelling after acute myocardial infarction (AMI) compared with low dose dobutamine stress echocardiography (LDSE). Methods: 21 patients with anterior AMI and successful primary angioplasty underwent MCE and LDSE during the suba...
متن کاملLow-dose adenosine stress echocardiography: Detection of myocardial viability
OBJECTIVE The aim of this study was to evaluate the diagnostic potential of low-dose adenosine stress echocardiography in detection of myocardial viability. BACKGROUND Vasodilation through low dose dipyridamole infusion may recruit contractile reserve by increasing coronary flow or by increasing levels of endogenous adenosine. METHODS Forty-three patients with resting dyssynergy, due to pre...
متن کاملLow-dose dobutamine echocardiography and rest-redistribution thallium-201 tomography in the assessment of spontaneous recovery of left ventricular function after recent myocardial infarction.
Spontaneous improvement of contraction and perfusion occurs after acute myocardial infarction. The relative merit of low-dose dobutamine stress echocardiography (LDDE) and rest-redistribution thallium scintigraphy (RR TI) in this setting has not been evaluated. We studied 30 patients at 7 +/- 3 days after acute myocardial infarction with LDDE (5 to 10 micrograms/kg/min) and RR TI single photon ...
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عنوان ژورنال:
- The American journal of cardiology
دوره 80 11 شماره
صفحات -
تاریخ انتشار 1997