What’s the main measurement error in normal flow low gradient NFLG aortic stenosis? over tracing of LVOT VTI due to misplacement of pulsed Doppler sample volume results in overestimating stroke volume which misclassifies a lot of patients with LFLG AS as NFLG AS bit.ly/4aokQSA True NFLGAS has lower AVC 44%, larger AVA & lower mortality

Normal flow low gradient severe AS is common and remains a challenge. We here tried to better understand the severity and outcomes post TAVR in this population @ASE360 onlinejase.com/article/S0894…