Arthritis Rheumatol:别嘌呤醇剂量递增对痛风患者骨质侵蚀和尿酸盐量的影响

2020-06-29 MedSci原创 MedSci原创

本研究旨在探究别嘌呤醇剂量递增以达到血清尿酸(SU)指标是否会影响骨侵蚀或尿酸一钠(MSU)晶体沉积。

本研究旨在探究别嘌呤醇剂量递增以达到血清尿酸(SU)指标是否会影响骨侵蚀或尿酸一钠(MSU)晶体沉积。

 

我们进行了一项为期2年的随机临床试验的影像学研究,该研究比较了接受别嘌呤醇且SU水平≥的痛风患者,立即将别嘌呤醇剂量递增至SU目标与常规给药1年,然后将剂量递增至目标0.36 mM/L。在基线,第1年和第2年患者就诊时进行了DECT脚扫描和手和脚X射线扫描。对DECT扫描的骨侵蚀和尿酸盐量进行评分。

 

结果,可获得87位患者的配对成像数据(剂量递增组为42位,对照组为45位)。在第2年,对照组的CT侵蚀评分进展高于剂量递增组(+ 7.8% VS + 1.4%; P = 0.015)。两组之间平片放射学侵蚀的变化或评分变窄没有差异。两组均观察到DECT尿酸盐含量减少。在第2年,对照组中SU水平<0.36 mM/L的患者和剂量递增组患者的DECT尿酸盐量减少(-27.6至-28.3%),而DECT尿酸盐量并未减少SU≥0.36 mM/L(+ 1.5%)的对照组患者中观察到(P = 0.023)。

 

总之,这些发现提供了证据,即使用以SU为目标的治疗策略进行的长期降低尿酸盐的疗法可以影响结构损伤并减少痛风中尿酸盐晶体的沉积。

 

原始出处:

 

Nicola DalbethKaren Billington, et al., Effects of Allopurinol Dose Escalation on Bone Erosion and Urate Volume in Gout: A Dual-Energy Computed Tomography Imaging Study Within a Randomized, Controlled Trial. Arthritis Rheumatol. 2019 Oct;71(10):1739-1746.

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    2020-07-01 zhaojie88
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    2020-07-01 Eleven17

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