关键词: 心房颤动, 肌钙蛋白I, 心肌梗死, 预后

Abstract: Objective　To compare the clinical features and prognostic differences of patients with atrial fibrillation and distinct troponin I level during emergency treatment,and to provide references for treatment of such patients.Methods　A total of 503 cases diagnosed with atrial fibrillation in the Central Hospital of Wuhan from 2008 to 2014 were selected as the subjects.Medical history,treatment history,laboratory examination,and clinical symptom of these patients were collected.Troponin I level of these patients during emergency treatment were measured.According to the troponin I level,all the patients were divided into two groups:the observation group（0.01-0.03 μg/L,220 cases） and the control group（<0.01 μg/L,283 cases）.In the follow-up for one year,survival information of the patients was gathered through return visits,telephone,E-mail,or examinations in community hospitals.Results　Differences of gender,atrial fibrillation history,hypertension,OSA detection rate,pacemaker implantation,ICD treatment ratio,Cr,and ventricular rate between the two groups were statistically significant（P<0.05）.Difference of incidence of dyspnea,chest pains,and vertigo between the two groups were not statistically significant（P>0.05）;the incidences of palpitation and fatigue of the observation group were higher than those of the control group（P<0.05）.During the follow-up,five（1.8%） cases in the control group and four（1.8%） cases in the observation group were lost.The total mortality and MI-related mortality of the observation group were higher than those of the control group（P<0.05）.Conclusion　The patients with atrial fibrillation and slightly elevated troponin I level mostly have atrial fibrillation history;the MI-related mortality and total mortality of these patients increase within one year.

Key words: Atrial fibrillation, Troponin I, Myocardial infarction, Prognosis