Efficacy and Safety of Intra-Aortic Balloon Pump Support in Patients with Acute Myocardial Infarction Complicated with Cardiogenic Shock Undergoing Percutaneous Coronary Intervention

Objective To assess the efficacy and safety of intra-aortic balloon pump(IABP) support in aged patients with acute myocardial infarction(AMI) complicated with cardiogenic shock(CS) undergoing percutaneous coronary intervention(PCI).Methods ClinicaI data of 52 patients with AMI complicated with CS who had received emergency PCI with IABP support were retrospectively reviewed,with another 45 patients of the same condition received emergency PCI without IABP support included as the control group.Left ventricular ejective function was evaluated in both groups at the time points of 1,3,and 6 months after the operation.with the incidence rate for Major adverse cardiovascular events(MACE) compared between the two groups.Results Left ventricular function at 1month,at 3months and at 6months after operation in patients with IABP support improved remarkbaly compared to the control group((44.5%±8.2%)vs(36.3%±4.7%),(46.7%±5.6)vs(39.1%±4.5%),(46.7%±5.6%)vs(39.1%±4.5%),all P0.05).Significant differences also existed in incidence rate of MACE(12/52vs25/45,15/52vs30/45,17/52vs37/45,all P0.05).Incidence rate for IABP complications was 23.1%,and the percentage was 7.7% for serious complication.Conclusion AMI-CS patients undergoing PCI can benefit from IABP support in terms of left ventricular functions and reduced MACE prevalence.But incidence rate for IABP complications is high in aged patients.