Key result
A reduction in NT-proBNP levels during dobutamine stress echocardiography independently predicted left ventricular inotropic reserve in patients with dilated cardiomyopathy (b= -0.55, p<0.001).
Why the study?
Does NT-proBNP response to dobutamine stress echocardiography predict left ventricular contractile reserve in patients with dilated cardiomyopathy?
Observational (n=56)
Does NT-proBNP response to dobutamine stress echocardiography predict left ventricular contractile reserve in patients with dilated cardiomyopathy?
Effect estimate: b= -0.55
Absolute Event Rate: 32.1% vs 18.8%
p-value: p=<0.001
Changes in NT-proBNP levels during dobutamine stress echocardiography can accurately predict left ventricular inotropic reserve in patients with dilated cardiomyopathy.
No takes yet. Share an insight, caveat, or question.
NT-proBNP response during dobutamine stress echo may aid noninvasive assessment of contractile reserve in dilated cardiomyopathy; hypothesis-generating and should not yet change practice.
Parthenakis et al. (2008) conducted an observational in Heart failure with dilated cardiomyopathy (n=56). NT-proBNP changes in response to dobutamine stress echocardiography vs. Patients with increased NT-proBNP levels (Group B) was evaluated on Improvement in Wall Motion Score Index (WMSI) / LV inotropic reserve (b= -0.55, p=<0.001). A reduction in NT-proBNP levels during dobutamine stress echocardiography independently predicted left ventricular inotropic reserve in patients with dilated cardiomyopathy (b= -0.55, p<0.001).
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