Prediction And Analysis Of The Long-Term Prognosis After Percutaneous Coronary Intervention In Patients With Acute Myocardial Infarction By Admission Shock Index

Objective: the purpose of this study was to explore the value of shock index(SI)in the long-term prognosis of patients with acute myocardial infarction(acute myocardial infarction,AMI)after percutaneous coronary intervention(percutaneous coronary intervention,PCI)and to discuss whether SI is far from the patients after the operation.The risk stratification of stage prognosis provides a new simple index.Methods: a total of 854 patients in the cardiovascular medicine department of the No.1 People’s Hospital of Zhangjiagang,Zhangjiagang,affiliated to Soochow University from June 2008 to December 2013,were included in this experiment.After other related interference factors were excluded,a total of 544 patients discharged from the hospital after PCI were discharged within 12 hours of the onset of the disease.The basic clinical information of the patients was counted and the SI of each patient was calculated.In this study,SI data were divided into two groups,that is,SI<0.7 is normal,and SI is higher than 0.7.After patients were discharged,the data were recorded by outpatient or telephone follow-up,and the incidence of major adverse cardiac events MACEs,such as heart disease mortality,recurrent myocardial infarction and congestive heart failure,was recorded.The clinical results were estimated and drawn by Ka Plan-Meier and compared with log-rank.Multivariate Cox proportional hazards regression analysis was used to screen independent predictors of long-term severe cardiac events.Results:(1)in patients with acute myocardial infarction after percutaneous coronary intervention surgery,creatine kinase index increased shock group(CK)peak levels were significantly higher than the normal group but the shock index,left ventricular ejection fraction(left ventricular ejection fractions,LVEF)level is lower than the normal shock index group.(2)the incidence of major adverse cardiac events was 4.1% and 7.2% after 1 year and 5 years after the patients were discharged from the patients undergoing percutaneous coronary intervention.And in the 1 year hospitalization rate due to heart failure and other cardiac adverse events,the shock index increased significantly in the normal group(5.7% vs 1.6%,P=0.011,8% vs 2.8%,P =0.007).In contrast,there was no significant difference between the two groups in 1 years of mortality due to heart disease(1.7% vs 0.8%,P=0.383).Similarly,for the 5 years hospitalization rate caused by heart failure and other cardiac adverse events,the shock index increased group was significantly higher than the shock index normal group(4% vs 1.2%,P =0.048;9.1% vs 2.8%,P =0.001;13.1% vs 5.2%,P =0.001).However,there was no significant difference in the rate of myocardial infarction between the two groups after 1 years and 5 years after the operation(1.1% vs 0.8%,P =0.652;3.4% vs 1.6%,P =0.212).Conclusions:(1)During 5 years of follow-up,compared to the normal group hospitalization shock index(SI <0.7),shock group index increased(SI ≥0.7)and the long-term prognosis is poor.(2)Hospitalization shock index is of great value for long-term prognosis of patients with acute myocardial infarction after percutaneous coronary intervention,and it is also an independent factor to predict long-term survival of patients.