The Seven-Year Risk Analysis Of Stroke After Transient Ischemic Attack

Objective: this study aims to investigate the prognosis of patients with TIA and related risk factors,and to provide new strategies for early assessment,timely intervention and long-term prevention of TIA.Methods:82 patients with TIA were selected as subjects.Telephone or outpatient follow-ups were conducted at 2 days,7 days,1 month,3 months,1 year,2 years,3 years,4 years,5 years and 7 years after the inclusion of patients.The occurrence,time and endpoint of cerebrovascular events were analyzed.Results:among the 82 patients,one died of carbon monoxide poisoning and one died of cerebral hemorrhage.Follow-up data of the remaining 80 patients were analyzed,and a total of 18 patients had cerebral infarction.Analysis of stroke risk factors after TIA showed that the incidence of cerebral infarction within 7 years was correlated with age,hypertension and coronary heart disease(P<0.05).Among them,the relative risk of cerebral infarction was 8.478[Exp(B)] in patients aged 60 years or older,and the 95% confidence interval corresponding to this relative risk was 2.129~33.766[95%CI for Exp(B)].The relative risk of cerebral infarction in patients with hypertension was 5.00[Exp(B)],and the 95% confidence interval corresponding to this relative risk was 1.219~20.505[95%CI for Exp(B)].Age and hypertension were independent risk factors for cerebral infarction.Over time,TIA occurred within seven years.Conclusions:1.The incidence of cerebral infarction in patients with TIA within 7 years was correlated with age 60 years old,history of hypertension and history of coronary heart disease,and was independently correlated with age 60 years old and history of hypertension;2.With the extension of time,the incidence of recurrence and cerebral infarction in TIA patients increased gradually within 7 years.