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- transient left ventricular apical ballooning
- tako-tsubo-like left ventricular dysfunction
- neurogenic stunned myocardium
Primary transient left ventricular apical ballooning is a distinct entity that has been diagnosed worldwide. Although neurogenic stunned myocardium has often been suggested as the cause, further investigation is recommended
Transient left ventricular apical ballooning is a syndrome presenting a unique morphologic feature of the left ventricle, characterised as a reversible balloon-like left ventricular wall motion abnormality at the apex with hypercontraction of the basal segment (fig 1). This entity was introduced as “tako-tsubo-like left ventricular dysfunction” in 1990 by Satoh and colleagues, and several reports have followed in Japan.1–5 “Tako-tsubo” is a fishing pot with a round bottom and narrow neck, which is used for trapping octopuses in Japan.4 However, establishment of its name, aetiology, criteria, management, and outcome remain challenging tasks.
Recently, we reported the clinical features in this syndrome.5 The median age of our patients was 74 years, and 82% of patients were female, consistent with previous studies.2–4,6 Almost all patients had physical or emotional stress as triggering factors with minimum evidence of coronary risk factors. On ECG, ST-T segment elevation or inverted T waves with a prolonged QTc interval were observed in several leads during the acute phase and returned to normal during chronic phase.5 Because …