Dynamic Left Intraventricular Obstruction Phenotype in Takotsubo Syndrome

Davide Di Vece, Angelo Silverio, Michele Bellino, Gennaro Galasso, Carmine Vecchione, Giovanni La Canna, Rodolfo Citro

Research output: Contribution to journalReview articlepeer-review

Abstract

Takotsubo syndrome (TTS) is characterized by acute, generally transient left ventricular (LV) dysfunction. Although TTS has been long regarded as a benign condition, recent evidence showed that rate of acute complications and in-hospital mortality is comparable to that of patients with acute coronary syndrome. In particular, the prevalence of cardiogenic shock ranges between 6% and 20%. In this setting, detection of mechanisms leading to cardiogenic shock can be challenging. Besides a severely impaired systolic function, onset of LV outflow tract obstruction (LVOTO) together with mitral regurgitation related to systolic anterior motion of mitral valve leaflets can lead to hemodynamic instability. Early identification of LVOTO with echocardiography is crucial and has important implications on selection of the appropriate therapy. Application of short-acting b1-selective betablockers and prudent administration of fluids might help to resolve LVOTO. Conversely, inotrope agents may increase basal hypercontractility and worsen the intraventricular pressure gradient. To date, outcomes and management of patients with TTS complicated by LVOTO as yet has not been comprehensively investigated.

Original languageEnglish
JournalJournal of Clinical Medicine
Volume10
Issue number15
DOIs
Publication statusPublished - Jul 22 2021

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