EF% after IABP Time Total (n=45) Group 1 (n=26) Group 2 (n=19) P (1 - 2) T0 26.5± 13.5 27.5± 13.5 23.1± 13.2 >0.05 T1 26.5± 14.4 27.9± 15.6 23.0 ± 13.2 >0.05 T3 28.8± 12.1 29.9± 15.2 27.1 ± 12.4 >0.05 T6 28.4± 11.1 30.9± 16.5 27.3± 16.1 <0.05 T24 30.5 ± 11.4 32.1± 12.2 * 28.2± 12.6 <0.05 T48 31.4± 14.2 35.9± 11.4 * 27.5± 11.7 <0.05 T72 34.6± 14.1 * 36.4± 13.6 * 28.5± 13.1 <0.05 D4 36.1± 13.3 39.7± 10.1 * 28.7± 10.6 * <0.05 D5 40.3 ± 11.1 44.2± 12.5 * 32.2± 12.9 * <0.05 D6 42.5± 12.2 44.5± 13.1 * 35.5± 13.7 * <0.05 D7 43.5± 14.5 46.5± 14.3 * 37.5± 14.9 * <0.05 Comment: EF improved after IABP and changed significantly from 72 hours (from 26.5 ± 13.5 to 34.6 ± 14.1%).