August 1, 2001European Journal of Heart Failure
Abnormal Contractile Responses During Dobutamine Stress Echocardiography in Patients with Idiopathic Dilated Cardiomyopathy
Why the study?
Does dobutamine stress echocardiography induce abnormal contractile responses in patients with idiopathic dilated cardiomyopathy?
Population
16 patients with idiopathic dilated cardiomyopathy, mean age 44+/-13 years, NYHA class II-III, mean left…
Design
Case_series
Authors
Discussion
Loading...
Member takes
Implication
Abnormal contractile responses may occur during dobutamine stress in idiopathic dilated cardiomyopathy; hypothesis-generating and should not yet change practice.
Structured PICO
Does dobutamine stress echocardiography induce abnormal contractile responses in patients with idiopathic dilated cardiomyopathy?
P
Population
16 patients with idiopathic dilated cardiomyopathy, mean age 44+/-13 years, NYHA class II-III, mean left ventricular ejection fraction 0.27+/-0.10.
I
Intervention
Dobutamine stress echocardiography (5-40 microg/min per kg bodyweight + atropine if required)
O
Outcome
Wall motion and thickening assessed in 16 segments using a four-point scalesurrogate
A majority of patients with idiopathic dilated cardiomyopathy exhibit ischemia-like myocardial contractile responses during dobutamine stress echocardiography, suggesting an energy supply-demand mismatch.
Cite This Study
M. et al. (2001) studied this question.