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Transient midventricular ballooning syndrome: a new variant
R Todd Hurst1, J Wells Askew, Christina S Reuss
1Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona 85260, USA. hurst.todd@mayo.edu
Journal of the American College of Cardiology
|August 1, 2006
Summary
A new variant of transient left ventricular ballooning affects only the midventricle, differing from apical ballooning syndrome. This discovery offers new insights into stress-induced heart conditions and the brain-heart connection.
Area of Science:
- Cardiology
- Neurology
Background:
- Transient left ventricular (LV) ballooning syndromes, like apical ballooning, are associated with stress.
- The pathophysiology of these syndromes and catecholamine-associated ventricular dysfunction remains unclear.
Observation:
- A novel variant of transient LV ballooning is described, specifically affecting North American Caucasian patients.
- This variant uniquely involves the midventricle, with hypercontractile apical and basal segments.
Findings:
- The midventricular ballooning shares clinical features and transient nature with apical ballooning, suggesting a common etiology.
- Sparing of the apical segment and midventricular involvement indicate mechanisms independent of epicardial coronary artery distribution.
Implications:
- This new variant expands the spectrum of stress-induced cardiomyopathies.
- Further research is needed to elucidate the exact pathophysiologic mechanisms and the "brain-heart" relationship in these conditions.