mid-ventricular variant of dobutamine-induced stress cardiomyopathy

Mid-Ventricular Variant of Dobutamine-Induced Stress Cardiomyopathy

INTRODUCTION Dobutamine stress testing is a commonly used modality in detecting and estimating the prognosis in coronary artery disease (CAD). Although it is well tolerated by most patients, adverse events have been reported. Rarely, transient wall motion abnormalities can occur in the absence of obstructive CAD to suggest stress cardiomyopathy. CASE PRESENTATION We report a 48-year-old femal...

“dobutamine stress testing”-triggered mid-ventricular takotsubo syndrome

Takotsubo cardiomyopathy (left ventricular ballooning syndrome) induced during dobutamine stress echocardiography.

A 75-year-old woman presented with left ventricular apical ballooning syndrome mimicking acute anterior myocardial infarction. She had a long history of chest tightness and was undergoing a contrast stress echocardiogram because of frequent re-admissions with chest pain, all with normal ECGs and troponins. A standard dobutamine/atropine protocol had been used. The patient developed central crus...

Dobutamine stress testing induced transient cardiomyopathy: A systematic review

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...

Irukandji syndrome, catecholamines, and mid-ventricular stress cardiomyopathy.

We present here the first reported case of mid-ventricular stress cardiomyopathy secondary to 'Irukandji syndrome', following envenomisation from a jellyfish. Carukia barnesi is a cubozoan or box jellyfish found in Far North Queensland, Australia prevalent during the warmer months of the year. It has been associated with 'Irukandji syndrome' as characterized by a sympathetic overdrive secondary...

ko-tsubo Cardiomyopathy With Apical Variant Complicated Cardiac Tamponade and Mid-Ventricular Variant

Tako-tsubo syndrome is a disease with similar alterations to ose observed in acute myocardial infarctions in the absence of ronary stenosis. Several pathophysiological mechanisms have en proposed to explain the unusual features of this syndrome, ch as multivessel coronary vasospasm, abnormalities in ronary microvascular function, and catecholamine-mediated rdiotoxicity. Inflammation may also pl...