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Circulation:高敏肌钙蛋白I与临床风险评分联用诊断疑似ACS

2018-10-22 国际循环 国际循环

众所周知,高敏心肌肌钙蛋白分析有助于识别急诊科心肌梗死风险较低患者。近期,Circulation发表的一项最新研究探讨临床风险评分与心肌肌钙蛋白联用能否改善早期心肌梗死排除方法的安全性。

众所周知,高敏心肌肌钙蛋白分析有助于识别急诊科心肌梗死风险较低患者。近期,Circulation发表的一项最新研究探讨临床风险评分与心肌肌钙蛋白联用能否改善早期心肌梗死排除方法的安全性。

研究共计入选1935例疑似急性冠状动脉综合征(ACS)患者,评估两种根据高敏心肌肌钙蛋白排除心肌梗死的方法单用或与低危TIMI评分(0或1)、GRACE评分(≤108)、EDACS评分(<16)或HEART评分(≤3)联用的安全性及有效性。就排除方法而言,ESC 3小时方案采用单一诊断阈值(第99百分位数),而高STEACS方法则采用>99百分位数诊断心肌梗死,采用<5 ng/L排除心肌梗死。

受试患者中,共计有276例(14.3%)患者在发病或30天时发生心肌梗死或心源性死亡。采用ESC方案法可排除70%的患者,漏诊27例患者,阴性预测值为97.9%(95%CI:97.1~98.6)。进一步加用HEART评分≤3可将ESC方案排除患者的比例降至25%,阴性预测值可改善至99.7%(95%CI:99.0~100,P<0.001)。采用High-STEACS方法可除外65%的患者,漏诊3例患者,阴性预测值为99.7%(95%CI:99.4~99.9)。进一步增加风险评分后并未改善High-STEACS方法的阴性预测值,但降低排除比例(24%~74%,P均<0.001)。

综上可见,加用临床风险评分可显著提高根据单一心肌肌钙蛋白界值即第99百分位数排除或诊断心肌梗死的ESC 3小时方案的安全性。High-STEACS方法中更低的界值有助于排除心肌梗死,但进一步加用风险评分虽可将排除患者的比例减半却未提高安全性。

原始出处:
Andrew R. Chapman, Kerrick Hesse, Jack Andrews, et al. High-Sensitivity Cardiac Troponin I and Clinical Risk Scores in Patients With Suspected Acute Coronary Syndrome. Circulation. Aug 2018.

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    2018-10-24 yaanren
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    2018-10-22 医者仁心5538

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