论文部分内容阅读
目的探讨血清B型利钠肽水平和Tei指数对老年慢性心力衰竭的诊断价值。方法选取老年慢性心力衰竭患者90例,按NYHA心功能分级方法进行心功能分级。以酶联免疫标记法(ELISA)测定血清B型利钠肽(BNP)浓度,以彩色超声多普勒仪测定系列超声参数以计算Tei指数,并以30例健康老年人作为对照组。结果①与对照组比较,老年CHF组血清BNP水平显著升高(712.82±365.37VS75.86±45.72,P<0.01)、Tei指数有显著性差异(0.53±0.11VS0.33±0.05,P<0.01)。②血清BNP水平随着心功能的恶化逐渐升高,差异显著(Ⅱ级388.17±128.47,Ⅲ级803.82±162.89,Ⅳ级1298.10±390.63),Tei指数在不同心功能分级间也具有显著性差异(Ⅱ级0.47±0.10,Ⅲ级0.55±0.08,Ⅳ级0.67±0.10,P<0.01)。③老年CHF组的血清BNP水平与Tei指数呈显著的正相关关系(r=0.546,P<0.01)。结论血清BNP、Tei指数作为判定老年人心力衰竭及其程度的指标具有临床应用价值,两者具有良好的相关性。
Objective To investigate the diagnostic value of serum B-type natriuretic peptide and Tei index in elderly patients with chronic heart failure. Methods Ninety elderly patients with chronic heart failure were enrolled in this study. Cardiac function was graded according to NYHA functional classification. Serum B-type natriuretic peptide (BNP) concentration was determined by enzyme-linked immunosorbent assay (ELISA). The series of ultrasound parameters were measured by color Doppler to calculate Tei index. Thirty healthy controls were used as control group. Results ① Compared with the control group, serum BNP level was significantly increased in aged CHF group (712.82 ± 365.37 vs 75.86 ± 45.72, P <0.01), and Tei index was significantly different (0.53 ± 0.11 vs 0.33 ± 0.05, P <0.01) ). (2) Serum BNP levels gradually increased with the worsening of cardiac function, with significant difference (Grade Ⅱ 388.17 ± 128.47, Grade Ⅲ 803.82 ± 162.89, Grade Ⅳ 1298.10 ± 390.63), Tei index also had significant difference between different cardiac function grades Grade Ⅱ 0.47 ± 0.10, grade Ⅲ 0.55 ± 0.08, grade Ⅳ 0.67 ± 0.10, P <0.01). (3) There was a significant positive correlation between serum BNP level and Tei index in elderly CHF group (r = 0.546, P <0.01). Conclusions Serum BNP and Tei index have clinical value as indicators of senile heart failure and its extent, both of which have good correlation.