"Takotsubo effect" in patients with ST segment elevation myocardial infarction

Area of Science:

• Cardiology
• Cardiovascular Imaging
• Clinical Medicine

Background:

• Takotsubo syndrome can be triggered by myocardial infarction (MI).
• The "Takotsubo effect" describes specific imaging features in acute MI-induced Takotsubo syndrome.
• This study focuses on anterior wall ST-segment elevation MI (STEMI).

Purpose of the Study:

• To investigate the diagnostic and prognostic implications of the Takotsubo effect.
• To assess the impact of Takotsubo effect in patients with anterior STEMI.

Main Methods:

• 111 consecutive patients with anterior STEMI undergoing percutaneous coronary intervention were enrolled.
• Evaluated systolic/diastolic function, hemodynamic consequences, and adverse cardiac events.
• Compared 30-day and five-year outcomes between patients with and without the Takotsubo effect.

Main Results:

• Patients with Takotsubo effect had significantly worse systolic function (lower peak systolic longitudinal strain, lower ejection fraction) and higher myocardial performance index within 48 hours of MI.
• No significant differences were observed in diastolic filling pressures, hemodynamic consequences, or 30-day mortality/rehospitalization.
• However, the Takotsubo effect group experienced more major adverse cardiac events (MACE) at five-year follow-up. Age, hypotension, tricuspid annular plane systolic excursion, and Takotsubo effect were independent predictors of five-year MACE.

Conclusions:

• The Takotsubo effect, secondary to anterior STEMI, is associated with a worse long-term prognosis.
• It serves as an independent predictor of major adverse cardiac events at five years.