摘要
目的观察N端前体脑钠肽(NT-proBNP)和胱抑素C(CysC)在心肾综合征中的诊断价值。方法选择2010年1月至2012年6月在我院就诊的心力衰竭患者291例,按照是否具有肾功能衰竭,分为心肾综合征组(126例)和单纯心力衰竭组(165例)。其中心肾综合征按照心功能分级分为:Ⅱ级53例,Ⅲ级62例,Ⅳ级11例,按照肾功能不全的严重程度分为肾功能储备代偿(Ⅰ组)27例,肾功能不全失代偿(Ⅱ组)32例,肾功能衰竭(Ⅲ组)29例,尿毒症(Ⅳ组)38例。并观察NT-proBNP,CysC,血肌酐(SCr)和左心室射血分数(LVEF)的变化。结果心肾综合征组的NT-proBNP,CysC和SCr水平较单纯心力衰竭组明显提高(P<0.01),而LVEF水平较单纯心力衰竭组明显降低(P<0.01)。心肾综合征患者血清NT-proBNP,CysC和SCr水平随着心力衰竭分级和肾功能分期升高而升高(P<0.01),心力衰竭分级Ⅱ级、Ⅲ级和Ⅳ级的NT-proBNP(1.97±0.63)μg/Lvs(2.73±0.76)μg/Lvs(3.33±1.09)μg/L、CysC(1.47±0.43)mg/Lvs(1.84±0.61)mg/Lvs(2.25±0.54)mg/L、SCr(276.43±55.86)μmol/Lvs(462.98±72.43)μmol/Lvs(555.07±102.92)μmol/L(均P<0.01);肾功能分期Ⅰ组、Ⅱ组、Ⅲ组和Ⅳ组的NT-proBNP(1.44±0.28)μg/Lvs(2.29±0.87)μg/Lvs(2.78±1.09)μg/Lvs(3.09±0.98)μg/L、CysC(0.97±0.12)mg/Lvs(1.18±0.21)mg/Lvs(1.65±0.65)mg/Lvs(2.76±0.87)mg/L、SCr(167.91±37.32)μmol/Lvs(226.27±58.59)μmol/Lvs(448.58±67.48)μmol/Lvs(649.43±117.16)μmol/L(均P<0.01),而LVEF值随着心力衰竭分级Ⅱ级(48.32±10.34)%vsⅢ级(42.65±11.56)%vsⅣ级(31.37±9.64)%和肾功能分期Ⅰ组(55.76±10.87)%vsⅡ组(46.87±11.76)%vsⅢ组(39.87±12.87)%vsⅣ组(36.54±10.75)%升高而降低(P<0.01)。结论联合NT-proBNP和CysC的检测对心肾综合征的诊断具有重要意义,可以作为心肾综合征疾病严重程度的指标。
Objective To observe the significance of N-terminal pro-brain natriuretic peptide(NT-proBNP) and cystatin C(Cys C) in patients with cardiorenal syndrome. Methods A total of 291 patients with heart failure in the hospital,from January 2010 to June 2012 ,in accordance with renal failure,were divided into cardiorenal syndrome group ( n =126) and simple heart failure group (165 cases). According to cardiac function classification, the patients with cardiorenal syndrome were divided into grade II (53 cases) ,grade III (62 cases) and grade IV(11 cases). In accordance with the severity of renal insufficiency, the patients with cardiorenal syndrome were divided into renal reserve compensatory ( I group,27 cases) ,kidney dysfunction decompensation ( II group, 32 cases), renal failure ( III group, 29 cases),uremia (IV group,38 cases). The levels of NT-proBNP,Cys C,serum creatinine(SCr) and left ventricular ejection fraction(LVEF) were observed in the patients. Results Compared with simple heart failure group,the levels of NT-proBNP,Cys C and SCr in cardiorenal syndrome group improved significantly (P 〈 0.01), while the levels of LVEF in cardiorenal syndrome group were significantly lower than those in simple heart failure group( P 〈0.01). In cardiorenal syndrome group, the levels of NT-proBNP, Cys C and SCr increased as the heart failure stage and renal insufficiency period increased( P 〈0.01), in cardiac function classification grade II , III and IV, NT-proBNP ( 1.97 ± 0.63) μg/L vs (2.73±0.76) μg/L vs (3.33±1.09) μg/L,Cys C(1.47±0.43) mg/L vs (1.84±0.61) mg/L vs (2. 25±0.54) mg/L,SCr(276.43±55.86) μmol/L vs (462.98±72.43) μmol/L vs (555.07±102.92)μmol/L(all P 〈 0.01) lrenal stage group I ,group II ,group II ,group IV NT- proBNP: (1.44±0.28) μg/L vs (2.29±0.87) μg/L vs (2.78±1.09) μg/L vs (3.09±0.98) μg/L,Cys C(0.97±0.12) mg/L vs (1. 184±0.21) mg/L vs (1.65±0.65) mg/L vs (2.76±0.87) mg/L,SCr (167.91±37.32) μmol/L vs (226.27±58.59)μmol/L vs (448.58±67.48) μmol/L vs (649.43±117.16) μmol/L (all P 〈0.01), while the levels of LVEF decreased inversely as the heart failure stage, grade II (48. 32±10. 34) }/0 vs grade II (42.65±11.56)% vsgrade III(31.37±9.64)% and renal insufficiency period increased, group I (55.76±10.87)% vs group II (46.87±11.76)% vs group III (39.87±12.87)% vs group IV (36.54±10.75) % ( P 〈0.01). Conclusion Detection of NT-proBNP combined with Cys C has very important value in cardiorenal syndrome as indicators of the severity as cardiorenal syndrome.
出处
《临床荟萃》
CAS
2013年第4期409-411,415,共4页
Clinical Focus
关键词
心力衰竭
充血性
肾功能不全
利钠肽
脑
heart failure, congestive
renal insufficiency
natriuretic peptide, brain