Baseline characteristics
Forty-six of the 47 (98%) patients who underwent TMVI between October 2014 and October 2019 were enrolled in this analysis. The age of the study population was 72±9 years (74% males; n=34) (Table 2). All were New York Heart Association (NYHA) functional classes III or IV. All patients had ≥grade 3+MR before TMVI and most patients (91%) had secondary/functional MR (predominantly due to ischemic leaflet tethering) (Table 2). In patients with an LVEF 35-50%, 54% had an EROA ≥0.4cm², and in patients with an LVEF ≤35%, all patients had an EROA ≥0.2cm². Baseline demographic and TTE characteristics of the study population are reported in Tables 2 and 3.