Tissue tracking of segmental strain as a predictor of provoked dynamic left ventricular outflow tract obstruction

We demonstrate that provoked LVOTO during DSE in non HCM symptomatic patients is directly correlated to resting regional LS, where the increased BS-LS of ≥ -17.5% was a key determinant of LVOT gradient provocation. Assessment of baseline BS-LS might be a bedside simple tool for detection of patients with DLVOTO not able to do DSE.