Arterial blood pressure changes: arterial blood pressure improves rapidly after placing the balloon and changes significantly after 24 hours: increasing from 56.1 ± 18.2 to 77.5 ± 12.6 mmHg (p <0.01), MAP of the two survival and mortality groups differed at the sixth hour after placing the ball (78.2 ± 12.1 compared to 70.4 ± 14.2 mmHg).