Document Classification

Section Type: RESULTS

Text: The boundaries for pre-implant LVEF were < 22 % (n = 128 ; 18. 2 + / - 3. 1 % ; T (low)), 22 % to 28 % (n = 121 ; 25. 4 + / - 1. 4 % ; T (middle)) and > 28 % (n = 117 ; 32. 6 + / - 3. 9 % ; T (high)) for each tertile. Two-year post-implant LVEF was 32. 0 + / - 11. 5 % (T (low)), 33. 7 + / - 10. 8 % (T (middle)) and 36. 4 + / - 9. 9 % (T (high)).