目的:观察不同血液透析方式对终末期肾病患者心血管并发症的影响。方法:48例慢性肾功能衰竭患者随机分为常规透析(CHD)组和每日短时透析(DHD)组,观察两组患者心胸比率(CTR)、左心室质量指数(LVMI)、心功能、血清钙、磷、甲状旁腺素水平以及血红蛋白和血清白蛋白和肾功能等指标的变化,评价不同透析方式对患者心血管并发症的影响。结果:两组患者肾功能均较透析前改善,但与常规透析组相比,DHD组患者心胸比率和左心室质量指数下降;血磷水平下降;血红蛋白和血清白蛋白水平明显提高。结论:DHD透析可以明显降低患者血磷水平,减小心胸比率和左心室质量指数,减少心血管并发症的发生。
ObjectiveTo investigate the relationship of 24-hour ambulatory pulse pressure (24hPP) with left ventricular mass index (LVMI) in elderly essential hypertension patients. MethodsThe data of 110 elderly patients with essential hypertension from January to December 2012 were collected in the study. All patients received 24-hour ambulatory blood pressure monitoring and echoeardiographic examination 24hPP and LVMI were calculated according to the results of 24-hour ambulatory blood pressure monitoring and echocardiographic measurements. The patients were divided into group A [24hPP<60 mm Hg (1 mm Hg=0.133 kPa), n=70] and group B (24hPP≥60 mm Hg, n=40). ResultsThe 24-hour systolic blood pressure and 24hPP for patients in group B were significantly higher than those in group A (P<0.001). Compared with group A patients, the interventricular septal thickness, left ventricular posterior wall thickness, left ventricular mass and left ventricular mass index were significantly higher in group B (P<0.05). Pearson correlation analysis showed that 24hPP had a positive correlation with LVMI in the elderly essential hypertension patients (r=0.33, P<0.001). Multiple stepwise regression analysis showed that 24hPP was the main factor for the increase of LVMI in elderly essential hypertension patients (β=0.90, P<0.001). ConclusionThe 24hPP is positively correlated with LVMI in elderly essential hypertension patients. The 24hPP is an important risk factor for left ventricular structural damage in elderly essential hypertensive patients.