目的探讨颈动脉-股动脉脉搏波速度(carotid-femoral pulse wave velocity,CFPWV)对维持性血液透析患者心脑血管及全因死亡的预测意义。方法以北京大学人民医院血液透析中心76例维持性血液透析(maintenance hemodialysis patients,MHD)患者作为研究对象,收集患者一般临床资料,包括原发病、透析龄、血压、血钙、血磷、白蛋白、三酰甘油、胆固醇、高密度脂蛋白、低密度脂蛋白、全段甲状旁腺素等,测定患者单次透析前CFPWV,并对患者进行5 年随访,收集患者心脑血管疾病发生情况及死亡原因,绘制生存曲线,明确CFPWV 在MHD 患者中的临床预后意义。结果具有不同水平CFPWV 患者(大于等于13m/s、小于13m/s)的远期预后存在显著性差异,CFPWV 小于13m/s 的患者累积生存率及因心脑血管疾病死亡的生存率高于CFPWV 大于等于13m/s 的患者;Cox 回归分析发现年龄(HR 1.052,95%CI 1.019~1.086,P=0.002)以及是否患有糖尿病(HR 2.972,95% CI 1.240~6.590,P=0.007)是MHD 患者全因死亡的独立危险因素,而CFPWV(HR 5.697, 95% CI 1.460~22.235,P=0.012)及年龄(HR 1.080,95% CI 1.014~1.150,P=0.017)、糖尿病(HR 5.961,95% CI 1.590~22.354,P=0.008)、平均动脉压(HR1.056,95% CI 1.003~1.112,P=0.038)、脉压(HR 0.952,95% CI 0.911~0.995,P=0.030)是MHD 患者心血管死亡的独立危险因素。结论CFPWV 的不同水平对维持性血液透析患者的预后有显著影响,更高的CFPWV 水平与维持性血液透析患者的不良预后相关,是维持性血液透析患者心脑血管死亡的独立危险因
素。
Objective To explore the predictive value of aortic stiffness for cardio- cerebral vascular (CV) mortality and all-cause mortality in maintenance hemodialysis (MHD) patients. Methods A cohort of 76 MHD patients from Peking University People’s Hospital was recruited. Demographic data was collected. Laboratory examinations and carotid-femoral pulse wave velocity (CFPWV) were performed. Results In a follow-up period of 5 years 17 fatal and 9 non-fatal CV events occurred, and 33 patients died. Patients with a CFPWV >13m/s had lower all-cause and CV survival rates by Kaplan-Meier survival analysis, as compared
those with a CFPWV <13m/s. Age and diabetes were the independent predictors for all-cause survival, and age, diabetes, mean arterial pressure, pulse pressure and CFPWV were the independent predictors for CV survival. Conclusions MHD patients with higher CFPWV have lower all-cause and CV survival rates. Higher CFPWV is an independent predictor for CV survival in MHD patients.