尿β2微球蛋白/尿肌酐比值对慢性充血性心力衰竭患者近期预后影响

2017-08-17 21:04:40罗承志
中国医药科学 2017年12期

罗承志

[摘要] 目的 探討尿β2微球蛋白(β2-MG)/尿肌酐(UCr)比值与慢性充血性心力衰竭(CHF)患者近期预后的关系。 方法 检测150例CHF患者与150例健康对照者的尿β2-MG及UCr水平,计算并比较尿β2-MG/UCr比值。同时根据其比值分为阳性组(80例)与阴性组(70例),检测并比较两组心脏结构及功能指标。随后进行随访,时间截止2017年2月1日,平均6个月,记录住院期间与出院6个月内主要心血管事件(MACE)、心源性死亡和因心力衰竭再入院的发生率,以死亡和再入院为主要研究终点。 结果 与健康对照者比较,CHF患者尿β2-MG/UCr比值显著升高(P<0.01);与阴性组比较,阳性组BNP显著较高(P<0.01),心衰程度较重(P<0.05),心源性死亡率及再入院率较高(P<0.05),顽固性心衰发生率较高(P<0.05);相关分析显示尿β2-MG/UCr比值与左心室舒张末期内径(LVEDD)、脑钠肽(BNP)呈正相关(P<0.01),与左心室射血分数(LVEF)呈负相关(P<0.05);Logistic回归分析显示高尿β2-MG/UCr比值、BNP为CHF患者近期死亡的独立危险因素,高尿β2-MG/UCr比值、BNP、超敏C反应蛋白(Hs-CRP)、胱抑素C(CysC)、入院心功能、年龄、心肌梗死史、糖尿病史为近期因心力衰竭再入院的独立危险因素。 结论 尿β2-MG/UCr比值可作为CHF患者左心室功能的一个预测因子,也是反应近期不良预后的独立危险因素。

[关键词] CHF;尿β2-MG;尿肌酐;预后

[中图分类号] R541.6 [文献标识码] A [文章编号] 2095-0616(2017)12-199-05

Effect of urine β2 microsphere protein / urine creatinine ratio on short-term prognosis in patients with chronic congestive heart failure

LUO Chengzhi

Internal Medicine, Shunde District Longjiang Hospital, Guangdong, Foshan 528318, China

[Abstract] Objective To explore the relationship between the ratio of β2 beta globulin (β2-MG) / urinary creatinine (UCr) ratio and short-term prognosis in patients with chronic congestive heart failure (CHF). Methods The levels of urinary β2-MG and UCr in 150 patients with CHF and 150 healthy controls were detected. Urine β2-MG/UCr ratio was caculated and compared. At the same time, the patients were divided into the positive group (80 cases) and the negative group (70 cases) according to their ratio. The cardiac structure and function index of the two groups were detected and compared. Following up, by February 1, 2017, averaging 6 months, the incidence of major cardiovascular events (MACE), cardiac death, and readmission for heart failure during hospitalization were recorded, and 6 months after discharge were the main endpoints of death and readmission. Results Compared with healthy controls, the urinary β2-MG/UCr ratio in CHF patients increased significantly (P<0.01). Compared with the negative group, the BNP in the positive group was significantly higher (P<0.01), and the degree of heart failure was serious (P<0.05). The mortality rate and re admission rate were higher (P<0.05), and the incidence of intractable heart failure was higher (P<0.05). Correlation analysis showed that the ratio of urinary β2-MG/UCr to left ventricular end diastolic diameter (LVEDD) and brain natriuretic peptide (BNP) were positively correlated (P<0.01), and negatively correlated with left ventricular ejection fraction (LVEF) (P<0.05). Logistic regression analysis showed that higher urinary beta ratio of β2-MG/UCr and BNP were the independent risk factors of death in patients with recent CHF, high β2-MG/UCr ratio, BNP urinary beta, high sensitive C reactive protein (Hs-CRP), Cystatin C (CysC) on admission, cardiac function, age, history of myocardial infarction and diabetes were independent risk of readmission due to recent the factors of heart failure. Conclusion Urinary β2-MG/UCr ratio can be a predictor of left ventricular function in patients with CHF. It is also an independent risk factor for short-term adverse prognosis.

[Key words] CHF; Urinary β2-MG; Urinary creatinine; Prognosis

慢性充血性心力衰竭(chronic heart failure,CHF,简称心衰)是指在多种致病因素下,心脏收缩或舒张功能出现严重障碍,导致其泵血能力的下降,无法满足机体代谢需求的一系列临床综合征[1]。2003年我国成人心衰发病率为0.9%[2],而2013年中国心血管报告指出我国心血管疾病处于持续上升阶段,因此心血管疾病及危险因素的流行增加势必导致心衰,并进一步诱发肾衰竭,最终形成心肾综合征,极大提高临床病死率[3]。资料显示,伴肾功不全的心衰患者病死率是无明显肾功障碍心衰患者的1.81~3.04倍[4-5]。血肌酐作为传统肾功能指标是心衰独立预测因子已被证实,但其评价早期肾病变具有局限性。近年來,发现反应肾小管损伤的标志物β2-MG浓度是心血管事件的独立预测因素[6],同时也是诊断和评价慢性心衰的良好指标。目前,针对慢性心衰患者尿β2-MG/UCr比值变化的报道鲜少。……

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