Comparisons of characteristics between two groups
There were 146 patients in IABP duration ≤4 days and 92 patients in IABP duration > 4 days. Comparisons of characteristics between the two groups were conducted and the results were presented inTable 1 . The values of age, LVEF, LDL-C, SPB, DPB were significantly more of patients in IABP duration≤4 days than IABP duration > 4 days. The values of SCr, WBC, RBC, UA, and rates of cardiac shock, Killip class (more than II),STEMI, heart rate of patients in IABP duration ≤ 4 days were significantly lower than the IABP duration > 4 days. Patients belonging to IABP duration ≤4 days showed a lower prevalence of male and cerebral infarction as compared to the IABP duration > 4 days.