Quantitative comparison of microcirculatory dysfunction in patients with stress cardiomyopathy and ST-segment elevation myocardial infarction.

To the Editor: Stress cardiomyopathy (SCM) manifests as transient and reversible left ventricular dysfunction in the absence of obstructive coronary disease ([1][1]). Although abnormal microvascular function has been proposed as a cause of SCM, this factor has not been evaluated using the index of