Feringa Harm H H, Schouten Olaf, Dunkelgrun Martin, Bax Jeroen J, Boersma Eric, Elhendy Abdou, de Jonge Robert, Karagiannis Stefanos E, Vidakovic Radosav, Poldermans Don
Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands.
Heart. 2007 Feb;93(2):226-31. doi: 10.1136/hrt.2006.093716. Epub 2006 Aug 16.
To assess the long-term prognostic value of plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) after major vascular surgery.
A single-centre prospective cohort study.
335 patients who underwent abdominal aortic aneurysm repair or lower extremity bypass surgery.
Prior to surgery, baseline NT-proBNP level was measured. Patients were also evaluated for cardiac risk factors according to the Revised Cardiac Risk Index. Dobutamine stress echocardiography (DSE) was performed to detect stress-induced myocardial ischaemia.
The prognostic value of NT-proBNP was evaluated for the endpoints all-cause mortality and major adverse cardiac events (MACE) during long-term follow-up.
In this patient cohort (mean age: 62 years, 76% male), median NT-proBNP level was 186 ng/l (interquartile range: 65-444 ng/l). During a mean follow-up of 14 (SD 6) months, 49 patients (15%) died and 50 (15%) experienced a MACE. Using receiver operating characteristic curve analysis for 6-month mortality and MACE, NT-proBNP had the greatest area under the curve compared with cardiac risk score and DSE. In addition, an NT-proBNP level of 319 ng/l was identified as the optimal cut-off value to predict 6-month mortality and MACE. After adjustment for age, cardiac risk score, DSE results and cardioprotective medication, NT-proBNP > or =319 ng/l was associated with a hazard ratio of 4.0 for all-cause mortality (95% CI: 1.8 to 8.9) and with a hazard ratio of 10.9 for MACE (95% CI: 4.1 to 27.9).
Preoperative NT-proBNP level is a strong predictor of long-term mortality and major adverse cardiac events after major non-cardiac vascular surgery.
评估大血管手术后血浆N末端B型利钠肽原(NT-proBNP)的长期预后价值。
单中心前瞻性队列研究。
335例行腹主动脉瘤修复术或下肢搭桥手术的患者。
术前测量基线NT-proBNP水平。根据修订的心脏风险指数对患者的心脏危险因素进行评估。进行多巴酚丁胺负荷超声心动图(DSE)以检测应激诱导的心肌缺血。
评估NT-proBNP对长期随访期间全因死亡率和主要不良心脏事件(MACE)终点的预后价值。
在该患者队列中(平均年龄:62岁,76%为男性),NT-proBNP水平中位数为186 ng/l(四分位间距:65 - 444 ng/l)。在平均14(标准差6)个月的随访期间,49例患者(15%)死亡,50例(15%)发生MACE。使用受试者工作特征曲线分析6个月死亡率和MACE,与心脏风险评分和DSE相比,NT-proBNP的曲线下面积最大。此外,NT-proBNP水平319 ng/l被确定为预测6个月死亡率和MACE的最佳截断值。在调整年龄、心脏风险评分、DSE结果和心脏保护药物后,NT-proBNP≥319 ng/l与全因死亡率的风险比为4.0(95%可信区间:1.8至8.9),与MACE的风险比为10.9(95%可信区间:4.1至27.9)。
术前NT-proBNP水平是重大非心脏血管手术后长期死亡率和主要不良心脏事件的有力预测指标。