Value of Myocardial Viability Estimation Using Dobutamine Stress Echocardiography in Assessing Risk Preoperatively Before Noncardiac Vascular Surgery in Patients With Left Ventricular Ejection Fraction <35%

2007 ◽  
Vol 99 (11) ◽  
pp. 1555-1559 ◽  
Author(s):  
Stefanos E. Karagiannis ◽  
Harm H.H. Feringa ◽  
Radosav Vidakovic ◽  
Ron van Domburg ◽  
Olaf Schouten ◽  
...  
Keyword(s):  
Left Ventricular Ejection Fraction ◽  
Ejection Fraction ◽  
Vascular Surgery ◽  
Myocardial Viability ◽  
Stress Echocardiography ◽  
Dobutamine Stress Echocardiography ◽  
Dobutamine Stress ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction

scholarly journals Utility of dobutamine stress echocardiography in aortic valve regurgitation and reduced left ventricular function

2021 ◽  
Author(s):  
Chihiro Saito ◽  
Kotaro Arai ◽  
Kyomi Ashihara ◽  
Hiroshi Niinami ◽  
Nobuhisa Hagiwara
Keyword(s):  
Aortic Valve ◽  
Stress Echocardiography ◽  
Dobutamine Stress Echocardiography ◽  
Dobutamine Stress ◽  
Left Ventricular ◽  
Valve Surgery ◽  
Left Ventricular Ejection ◽  
Reverse Remodeling ◽  
Aortic Valve Surgery ◽  
Ventricular Ejection Fraction

Objective: Predictors for post-operative reverse remodeling in patients with severe aortic regurgitation (AR) and reduced left ventricular ejection fraction (LVEF) are unknown. We performed low-dose dobutamine stress echocardiography (DSE) in patients with severe AR and reduced LVEF to evaluate the relationship between contractile reserve (CR) and reverse remodeling after surgery. Methods: In 31 patients with chronic severe AR and reduced LVEF (LVEF < 50%), we performed pre-operative DSE, assessed CR and examined whether changes in preoperative DSE were associated with improvement of post-operative LVEF after aortic valve surgery. Results: The pre-operative echocardiographic findings were as follows: left ventricular (LV) end-diastolic dimension: 67 ± 10 mm, LV end-systolic dimension: 52 ± 13 mm and LVEF: 42% ± 8%. All patients underwent aortic valve surgery. Patients with pre-operative LVEF of >45% exhibited a significant increase in LVEF; however, patients with pre-operative LVEF of <45% showed no significant change. When we examined the results of DSE performed in patients with pre-operative LVEF of <45%, ΔLVEF of ≥6% (with CR) during DSE was related to an improvement in post-operative LVEF; ΔLVEF of ≥6% during DSE predicted an improvement in post-operative LVEF, with a sensitivity and specificity of 80% and 85%, respectively. Conclusions: DSE may be a helpful tool for predicting post-operative reverse remodeling in patients with severe AR and moderately reduced LVEF.

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