Tako-Tsubo Cardiomyopathy: A Heart Stressed Out of Energy?

Dana K Dawson, Christopher J Neil, Anke Henning, Donnie Cameron, Baljit Jagpal, Margaret Bruce, John Horowitz, Michael P Frenneaux

Research output: Contribution to journalLetter

31 Citations (Scopus)

Abstract

Tako-tsubo cardiomyopathy (TTC) is an acute form of left ventricular (LV) systolic dysfunction often following intense stress, but its pathophysiology remains elusive. Because of its reversible natural course without much apparent myocyte damage, as inferred by the lack of late gadolinium-enhanced (LGE) cardiac magnetic resonance (CMR), it has been a priori assumed that its evolution is benign (1). Whatever the etiology of the acute insult, it is important to establish the nature of this state of intense myocardial contractile dysfunction with preserved viability, as this may point to a potential therapeutic target in those cases with a less favorable clinical course. It is known that impaired cardiac energetic status is directly linked to clinical and subclinical LV dysfunction. We hypothesized that impaired cardiac energetics may occur in acute TTC, further investigating its recovery at 4 months follow-up.
Original languageEnglish
Pages (from-to)985-987
Number of pages3
JournalJACC. Cardiovascular Imaging
Volume8
Issue number8
Early online date1 Nov 2014
DOIs
Publication statusPublished - Aug 2015

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Keywords

  • Tako-tsubo cardiomyopathy
  • Left ventricular systolic dysfunction

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