压力反射敏感性对急性心肌梗死患者早期病死率的预测价值

The Value of Baroreflex Sensitivity to Predict the Early Death Rate of Acute Myocardial Infarction Patients

目的 :探讨压力反射敏感性 (BRS)对预测急性心肌梗死 (AMI)患者早期病死率的价值。方法 :测定 5 0例 AMI患者发病后 1周和 2 0例正常对照组的 BRS,并探讨 BRS与 AMI患者早期病死率的相关性。结果 :AMI患者发病后 1周BRS明显小于 2 0例正常对照组 (1 1± 8.2 ms/ mm Hg vs4 .1± 1 .5 ms/ mm Hg,P<0 .0 5 ) ;心肌梗死患者在发病 1个月内猝死 4例 ,其 BRS降低最明显 ,BRS<2 .5 ms/ mm Hg可作为 AMI易发生早期死亡的高危因子界限。结论 :BRS在AMI患者明显下降 ,并可预测

Objective:To examine the value of baroreflex sensitivity (BRS) to predict the early death rate of acute myocardial infarction (AMI). Methods: The baroreflex sensitivity of 50 patients with AMI and 20 normal contronals were detected and the relationship between BRS and early death rate of AMI patients was analyzed. Results: BRS of the patients in the first week after AMI was much lower than that of the normal controls (11±8.2ms/mmHg vs 4. 1±1 .5ms/mmHg, P <0.05). Four patients suffered from sudden death during the first month, and their BRS showed the lowest.Conclusion: BRS of the AMI patients is lower than that of the normal controls, and it can predict the sudden death of the AMI patients in the early period.