ASSESSMENT OF MICROVASCULAR DYSFUNCTION USING QUANTITATIVE FLOW RATIO IN PATIENTS WITH TAKOTSUBO SYNDROME

Takotsubo syndrome (TTS) is an acute cardiac status without epicardial coronary obstruction, but with reversible ventricular motion abnormalities. Quantitative flow ratio (QFR) is a novel approach to evaluate not only the coronary stenosis significance but also the resistance in coronary artery