Why the study?
Does atrial pacing tachycardia enhance left ventricular systolic and diastolic performance in patients with dilated cardiomyopathy compared to those with normal LV function?
Does atrial pacing tachycardia enhance left ventricular systolic and diastolic performance in patients with dilated cardiomyopathy compared to those with normal LV function?
Patients with dilated cardiomyopathy exhibit depressed inotropic and lusitropic reserve, failing to enhance systolic and diastolic function during tachycardia.
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Impaired inotropic and lusitropic reserve during tachycardia in dilated cardiomyopathy warrants caution with rate changes; leaves open whether targeting this deficit improves outcomes.
Feldman et al. (1988) studied this question.
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