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右心功能、脑钠肽及心肌肌钙蛋白Ⅰ对非高危急性肺栓塞危险分层的临床价值

2015-08-18程江涛等

中国医药导报 2015年14期

程江涛等

[摘要] 目的 探讨右心功能、脑钠肽(BNP)及心肌肌钙蛋白Ⅰ(cTnⅠ)对非高危急性肺栓塞(APE)患者危险分层的临床价值。 方法 入选2010年1月~2013年6月确诊的非高危APE患者60例,根据有无右心功能不全及血浆cTnⅠ、BNP水平将入选患者分为3组。中高危组(15例):右心功能不全,cTnⅠ≥0.1 μg/L和/或BNP≥100 ng/L;中低危组(30例):或存在右心功能不全,或存在cTnⅠ≥0.1 μg/L、BNP≥100 ng/L中的至少一项;低危组(15例):右心功能正常,cTnⅠ<0.1 μg/L且BNP<100 ng/L。分析右心功能、cTnⅠ、BNP水平与APE患者危险分层和临床预后的关系。 结果 中高危组、中低危组、低危组的30 d临床不良事件发生率分别为33.3%、20.0%、0.0%,病死率分别为13.3%、6.7%、0.0%,差异有统计学意义(P < 0.05);中高危组和中低危组的cTnⅠ、BNP水平明显高于低危组,中高危组的cTnⅠ、BNP水平与中低危组相比亦明显增高,差异均有统计学意义(P < 0.05)。 结论 右心功能及血浆cTnⅠ、BNP水平在APE患者危险分层中具有重要的临床价值。

[关键词] 急性肺栓塞;脑钠肽;心肌肌钙蛋白I;右心功能;危险分层

[中图分类号] R543.2 [文献标识码] A [文章编号] 1673-7210(2015)05(b)-0008-04

Clinical value investigation of right ventricular function,brain natriuretic peptide and troponin on risk stratification in non high risk patient with acute pulmonary embolism

CHENG Jiangtao ZHU Mingjun CHEN Peng DU Tinghai HU Yucai NIU Linlin ZHU Chulin WANG Yongxia

The First Ward of Heart Center, the First Affiliated Hospital of Henan University of TCM, He'nan Province, Zhengzhou 450000,China

[Abstract] Objective To explore the clinical value of right ventricular function,brain natriuretic peptide(BNP)and cardiac troponin I (cTnⅠ) on risk stratification in non high risk patients with acute pulmonary embolism(APE). Methods 60 patients with non high risk APE diagnosed from January 2010 to June 2013 were selected and divided into intermediate-high risk group (15 cases), intermediate-low risk group (30 cases) and low-risk group (15 cases) based on right ventricular function, cTnⅠ and BNP level. Intermediate-high risk group: right ventricular dysfunction(RVD), one of the cTnⅠ≥0.1 μg/L and BNP≥100 ng/L at least; intermediate-low risk group: RVD or cTnⅠ≥0.1 μg/L and/or BNP≥100 ng/L; low-risk group:normal right ventricular function, cTnⅠ<0.1 μg/L and BNP<100 ng/L.Right ventricular function, plasma BNP and cTnⅠ level were detected. Relationship among right ventricular function, BNP, cTnⅠ level and risk stratification of APE patient, clinical outcome were analyzed. Results Incidence rate of clinical adverse event at 30 days in intermediate-high risk group, intermediate-low risk group and low-risk group was 33.3%, 20.0%, 0.0% respectively,mortality rate of intermediate-high risk group, intermediate-low risk group and low-risk group was 13.3%, 6.7%, 0.0% respectively, with statistical differences (P < 0.05). cTnⅠ and BNP level of intermediate-high risk group and intermediate-low risk group was significantly higher than that of low-risk group respectively, cTnⅠ and BNP level of intermediate-high risk group was significantly higher than that of intermediate-low risk group respectively, with statistical differences(P < 0.05). Conclusion Right ventricular function, cTnⅠ and BNP level have important clinical value for risk stratification in the non high risk patients with acute pulmonary embolism.

[Key words] Acute pulmonary embolism; Brain natriuretic peptide; Cardiac troponin I; Right ventricular function; Risk stratification

急性肺血栓栓塞症(acute pulmonary embolism,APE)是一种严重危害公共健康的临床常见疾病,有研究显示,APE已成为世界第三位死亡原因,仅次于冠心病和肿瘤;其临床表现复杂,轻者可无任何症状或仅有短暂的呼吸困难,重者可出现低血压、心源性休克,甚至猝死;APE的病死率高,未经治疗的APE病死率高达30%,经过充分治疗可降低至2%~8%。早期根据患者血流动力学、右心功能情况、血浆脑钠肽(brain natriuretic peptide,BNP)和心肌肌钙蛋白Ⅰ(cardiac troponin Ⅰ,cTnⅠ)水平对APE患者进行诊断、危险分层,有助于制订合理的治疗方案,改善预后[1]。本研究通过分析非高危APE患者右心功能、BNP及cTnⅠ浓度与临床不良事件的关系,探讨右心功能、BNP及cTnⅠ对APE患者进行危险分层的临床意义。

1 资料与方法

1.1 一般资料

入选河南中医学院第一附属医院心脏中心2010年1月~2013年6月确诊为APE的非高危患者60例,其中男36例,女24例,平均年龄(57.6±12.4)岁。APE的诊断标准:根据临床表现、X线胸片、心电图、血气分析等并结合下述确诊方法中的任一项者可以诊断。确诊方法如下:①核素肺通气/灌注显像高度可能性,灌注与通气不匹配;……

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