左卡尼汀对维持性血液透析患者左心室心肌质量的影响

目的 研究左卡尼汀对维持性血液透析患者左心室肥厚(LVH)的干预作用.方法 选择我院血透室维持性血液透析患者31例,随机分为治疗组20例和对照组11例.治疗组每次透析结束后静脉注射左卡尼汀1.0 g,对照组静脉注射等体积的生理盐水,时间均为6个月.治疗前、后检测血钙、血磷、血红蛋白含量,用心脏超声检测并计算左心室心肌质量(LVM)、左心室心肌质量指数(LVMI)和射血分数(EF).结果 治疗组左室心肌质量由(252.03±32.29)g降至(204.47±37.33)g(P＜0.05),左室心肌质量指数由(155.83±23.42)g/m2降至(129.21±17.46)g/m2(P＜0.05),而对照组超声心动图两指标无明显变化.结论 左卡尼汀可以减轻维持性血液透析患者左心室肥厚.

Effect of L-carnitine on the left ventricular mass in patients undergoing maintenance hemodialysis

Objective To assess the effect of L-carnitine(L-CN)on left ventricular hypertrophy(LVH)in patients undergoing maintenance hemodialysis. Methods Thirty-one patients undergoing hemodialysis were randomly divided into the L-CN group(n =20)and the control group(n = 11). Patients in the L-CN group received additional intravenous injection of 1.0 g L-CN immediately after hemodialysis for a 6-month period. Patients in the control group received isovolumic saline. Using echocardiography,left ventricular mass (LVM),left ventricular mass index(LVMI)and the ejection fraction(EF)were measured before and after the treatment. Plasma calculus,plasma phosphorus and hemoglobin levels were measured. Results The LVM decreased significantly from(252. 03 ±32. 29)g to(204. 47 ± 37.33)g in patients in L-CN group(P ＜ 0. 05),the LVMI decreased significantly from (155.83 ± 23.42)g/m2 to(129. 21 ± 17.46)g/m2 in patients in the L-CN group. However,LVM and LVMI remained unchanged in the control group. Conclusions Supplementation with L-CN induced hypertrophy of LVH in patients on maintenance hemodialysis.