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Haemodynamic effects of acute intravenous landiolol in Takotsubo cardiomyopathy with dynamic left ventricular outflow tract obstruction


Takotsubo cardiomyopathy (TCM) leads to serious left ventricular outflow tract (LVOT) obstruction with cardiogenic shock in 6%–20% of cases. The onset of LVOT obstruction, coupled with mitral regurgitation resulting from systolic anterior motion of mitral valve leaflets, can lead to haemodynamic instability in addition to severely impaired systolic function. We describe three patients who experienced chest discomfort following emotional stress. These patients displayed pronounced abnormalities on ECGs, insignificant obstructive coronary disease and haemodynamic instability due to LVOT obstruction. The infusion of landiolol, a short-acting beta blocker, was effective in releasing the gradient. Dynamic outflow obstruction is the major predictor of haemodynamic collapse. We suggested that an early identification of this complication in hypotensive patients with suspected TCM could be of utmost importance to optimise the therapeutic approach in the acute setting.

  • Heart failure
  • Drugs and medicines

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