The dose of dobutamin (µg / kg / min) used in treatment Time Total (n=45) Group 1 (n=26) Group 2 (n=19) P (1 - 2) T0 14.8 ± 5.5 13.8 ± 7.3 15.1 ± 6.1 >0.05 T1 14.5 ± 8.7 14.1 ± 6.7 14.9 ± 5.1 >0.05 T3 11.7 ± 10.3 10.1 ± 4.2 12.5 ± 6.2 >0.05 T6 10.1 ± 6.3 8.6 ± 5.1 11.2 ± 9.1 >0.05 T24 9.6 ± 6.7 9.2± 7.3 * 10.1± 8.6 >0.05 T48 8.6± 5.0 * 8.2± 5.2 * 9.1± 4.3 * >0.05 T72 6.3 ± 6.3 * 4.0 ± 5.1 * 8.2 ± 7.5 * <0.05 D4 5.7 ± 4.3 * 3.5 ± 4.0 * 7.1 ± 8.3 * <0.05 D5 4.6 ± 6.4 * 3.1± 6.6 * 6.0 ± 5.9 * <0.05 D6 4.7 ± 4.1 * 2.8 ± 3.4 * 6.2 ± 10.9 * <0.05 D7 4.6 ± 6.1 * 1.1 ± 3.5 * 7.1 ± 13.8 * <0.05 Comment: The dose of Dobutamin decreased significantly after 48 hours of IABP: from 14.8 ± 5.5 to 8.6 ± 5.0 µg / kg / minute, p <0.05.