JAMA:碳酸镧 vs 碳酸钙对高磷血症患者血管钙化相关心血管事件风险的影响

2021-05-19 MedSci原创 MedSci原创

对于高磷血症并伴有至少一个血管钙化危险因素的血液透析患者,与碳酸钙相比,碳酸镧治疗后复合心血管事件风险未见降低,相反心血管死亡风险和继发性甲状旁腺功能亢进风险增加

在慢性肾病(CKD)患者中,高磷血症是与血管事件和死亡风险相关的重要因素。含钙磷结合剂,如碳酸钙、醋酸钙,可改善高磷血症,其具有价格便宜,耐受性很好的有点,但同时导致钙负荷增加,加速血管钙化,或可导致心血管事件风险增加。近日研究人员考察了在接受透析的高磷血症患者中,非钙磷结合剂对患者心血管事件风险的影响。

本次研究在日本273家血液透析机构开展,2374例慢性肾病患者参与,患者有高磷血症并伴有一个或多个血管钙化危险因素(如年龄≥65岁,绝经以及糖尿病)。患者随机接受碳酸镧(n=1154)或碳酸钙(n=1155),血清磷酸盐水平控制在3.5 mg/dL和6.0 mg/dL之间。研究的主要终点为复合心血管事件,包括心血管死亡、非致命性心肌梗死卒中、不稳定性心绞痛、短暂性脑缺血发作或因心力衰竭或室性心律失常住院。次要结果包括总生存率、无继发性甲状旁腺功能亢进生存率、无髋部骨折生存率和不良事件。

患者平均年龄69岁,女性占40.5%,1851人(80.2%)完成试验。中位随访3.16年后,碳酸镧组1063例患者中有147人发生心血管事件,碳酸钙组1072例患者中有134人发生心血管事件(发生率为4.80 vs 4.30/100患者随访年;差异0.50/100患者随访年;危险比[HR]=1.11),无显著差异。组间全因死亡风险(差异为0.43/100患者随访年,HR=1.10)或髋部骨折风险(差异为0.10/100患者随访年;HR=1.21)无显著性差异,但碳酸镧组的心血管死亡风险(差异为0.61/100患者随访年,HR=1.51)和继发性甲状旁腺功能亢进风险增加(差异1.34/100患者随访年,HR=1.62)。碳酸镧组发生282例不良事件(25.7%),碳酸钙组发生259例(23.4%)。

组间复合心血管事件及全因死亡风险差异

研究认为,对于高磷血症并伴有至少一个血管钙化危险因素的血液透析患者,与碳酸钙相比,碳酸镧治疗后复合心血管事件风险未见降低,相反心血管死亡风险和继发性甲状旁腺功能亢进风险增加

原始出处

Hiroaki Ogata et al. Effect of Treating Hyperphosphatemia With Lanthanum Carbonate vs Calcium Carbonate on Cardiovascular Events in Patients With Chronic Kidney Disease Undergoing Hemodialysis The LANDMARK Randomized Clinical Trial.JAMA. May 18,2021.

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    2021-05-19 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

    0

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