Abstract: ObjectiveTo explore the risk factors of hypotension of patient with acute myocardial infraction(AMI) after emergency percutaneous coronary intervention(PCI).MethodsThe data of 300 patients with AMI who received PCI in our hospital from January 2015 to August 2015 were collected.According to the symptom of hypotension

the patients were divided into hypotension group and normal group.The general information and relative clinical data were recorded and compared.The risk factors were analyzed by logistics regressive analysis.ResultsThe incidence of previous angina of hypotension group was lower than that of normal group

the difference was significant(P＜0.05)，there was no difference in other general information between two groups(P＞0.05).There was no difference in level of LDL-C between two groups(P＞0.05).And the differences in peak value of CK-MB

inferior wall or right ventricular infarction were statistical significance(P＜0.05).There was no significant difference in multi-vessel lesions(P＞0.05)

and the difference in others of coronary artery lesion between two groups was statistical significance(P＜0.05).ConclusionThe peak value of CK-MB

inferior wall or right ventricular infarction and TIMI＜2 after PCI can increase the possibility of hypotension after PCI

and angina pectoris before infarction can reduce the incidence of hypotension after PCI.