Dobutamine stress echocardiography has significant advantages in our country due to its wide availability, portability, low cost and safety.This study was conducted with the aim assess myocardial viability by Stress Echocardiography (DSE) before PCI total occlusion of coronary artery.This confirms that a biphasic response dobutamine is highly predictive postoperative recovery regional contracti...

BACKGROUND Early injection of atropine during dobutamine stress echocardiography has been demonstrated in retrospective analyses to reduce the duration and dose of dobutamine infusion, while preserving a similar diagnostic accuracy with a lower incidence of adverse effects. AIM In our prospective study, we sought to explore the safety of the early atropine-dobutamine stress echocardiography p...

D-Ribose, a pentose sugar, has shown to improve myocardial high-energy phosphate stores depleted by ischemia. This study investigated the ability of D-Ribose with low dose dobutamine to improve the contractile response of viable myocardium to dobutamine and to assess the efficacy of D-ribose in reducing stress-induced ischemia. Twenty-six patients with ischemic cardiomyopathy completed a two-da...

RATIONALE Hypercapnia has similar hemodynamic effects to those of a dobutamine infusion and may have relevance in the management of septic shock. OBJECTIVES To compare the effects induced by hypercapnia with those of dobutamine in a clinically relevant model of septic shock. METHODS Fecal peritonitis was induced in 21 anesthetized, invasively monitored, mechanically ventilated female sheep....

AIMS To determine the degree of inter-institutional agreement in the assessment of dobutamine stress echocardiograms using modern stress echocardiographic technology in combination with standardized data acquisition and assessment criteria. METHOD AND RESULTS Among six experienced institutions, 150 dobutamine stress echocardiograms (dobutamine up to 40 microg x kg(-1) min(-1) and atropine up ...

Dobutamine, a recently synthesized catecholamine, was developed as an agent which would produce increased inotropy in low cardiac output states without major changes in heart rate, cardiac rhythm, or peripheral vascular resistance. However, the effect of dobutamine on the capacitance vasculature is unknown. Since alterations of systemic vascular capacity influence venous return and hence cardia...

High-dose dobutamine magnetic resonance stress testing has been shown to be superior to dobutamine stress echocardiography for diagnosis of coronary artery disease (CAD). We determined the feasibility of quantitative myocardial tagging during low- and high-dose dobutamine stress and tested the ability of global systolic and diastolic quantitative parameters to identify patients with significant...

The safety and utility of dobutamine stress testing are well established in the evaluation of patients with known or suspected coronary artery disease [1]. Overall incidence of adverse effects during dobutamine stress testing is about 5–10%. Transient regional wall motion abnormalities of left ventricle and hemodynamic effects of dobutamine infusion during stress testing have been described. Ho...

Dobutamine stress echocardiography has emerged as a reliable method for the diagnosis of coronary artery disease and the management of its treatment. Several studies have shown that that this technique works with 80-85% accuracy in comparison with other imaging methods. There are few studies aimed at developing the clinical utility of dobutamine stress echocardiography for the evaluation of nor...

BACKGROUND Low-dose dobutamine stress echocardiography is increasingly used for identifying myocardial viability. AIM We explored whether dobutamine-induced strain (S) and strain rate (SR) can identify myocardial viability following fibrinolytic therapy for ST-segment-elevation myocardial infarction (STEMI), taking (99m)Tc-sestamibi scintigraphy as the "gold standard" for diagnosis. METHODS...