Use of N-terminal pro-B-type natriuretic peptide to detect myocardial ischemia

被引:68
作者
Staub, Daniel [1 ]
Jonas, Nils [1 ]
Zellweger, Michael J. [2 ]
Nusbaumer, Charly [3 ]
Wild, Damian [4 ]
Pfisterer, Matthias E. [2 ]
Mueller-Brand, Jan [4 ]
Perruchoud, Andre P. [1 ]
Mueller, Christian [1 ]
机构
[1] Univ Basel Hosp, Dept Internal Med, CH-4031 Basel, Switzerland
[2] Univ Basel Hosp, Div Cardiol, CH-4031 Basel, Switzerland
[3] Univ Basel Hosp, Dept Lab Med, CH-4031 Basel, Switzerland
[4] Univ Basel Hosp, Dept Nucl Med, CH-4031 Basel, Switzerland
基金
瑞士国家科学基金会;
关键词
Natriuretic peptides; Ischemia; Exercise; Electrocardiography;
D O I
10.1016/j.amjmed.2005.05.020
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
PURPOSE: To evaluate the utility of plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) levels to detect myocardial ischemia. METHODS: We conducted a prospective observational study in 260 consecutive patients with suspected myocardial ischemia referred for rest/ergometry myocardial perfusion single-photon emission computed tomography. Levels of NT-proBNP were determined before and immediately after symptom-limited bicycle ergometry. RESULTS: Inducible myocardial ischemia on perfusion images was detected in 129 patients (49.6%). Baseline NT-proBNP and exercise induced increase in NT-proBNP ( Delta NT-proBNP) were significantly higher in patients with myocardial ischemia (median baseline NT-proBNP 155 pg/mL vs 91 pg/mL, P <.001; Delta NT-proBNP 15 pg/mL vs 7 pg/mL, P < .002). Compared with patients in the lowest Delta NT-proBNP quartile, those in the highest quartile of Delta NT-proBNP had three times the risk of inducible ischemia (relative risk, 2.9; 95% confidence interval, 1.4 to 6.0; P < .003). Overall, the accuracy of baseline NT-proBNP and Delta NT-proBNP in the detection of myocardial ischemia were similar to that of the exercise electrocardiogram (ECG). Combining exercise ECG and baseline NT-proBNP or Delta NT-proBNP slightly increased the accuracy of exercise ECG only. CONCLUSION: The NT-proBNP level at rest as well as Delta NT-proBNP during exercise stress testing is associated with inducible myocardial ischemia. NT-proBNP levels may have incremental value in the diagnosis of myocardial ischemia. (C) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:1287.e9 / 1287.e16
页数:8
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