Cincinnati Children's Hospital Medical Center, Hematology/Oncology, Cincinnati, OH 45220, USA.
Br J Haematol. 2011 Oct;155(2):263-7. doi: 10.1111/j.1365-2141.2011.08827.x. Epub 2011 Aug 16.
Tapered oral dexamethasone for acute chest syndrome (ACS) in sickle cell anaemia was studied using a novel ACS assessment tool and investigational biomarkers. Twelve participants were randomized (mean age 17·3 years) before early study termination. Dexamethasone decreased duration of hospitalization for ACS by 20·8 h compared to placebo (P = 0·024). Rebound pain occurred in both groups (3 dexamethasone versus 1 placebo). Overall, dexamethasone decreased the leucocyte activation biomarker, sL-selectin; however, participants with rebound pain had higher sL-selectin within 24 h of treatment (dexamethasone or placebo). This ACS assessment tool was feasibly applied, and sL-selectin is a promising biomarker of ACS therapy.
在镰状细胞贫血症的急性胸部综合征(ACS)中,使用新型 ACS 评估工具和研究性生物标志物来研究锥形口服地塞米松。在早期研究结束前,对 12 名参与者进行了随机分组(平均年龄 17.3 岁)。与安慰剂相比,地塞米松使 ACS 的住院时间缩短了 20.8 小时(P = 0.024)。两组均出现反弹疼痛(3 例地塞米松与 1 例安慰剂)。总体而言,地塞米松降低了白细胞活化生物标志物 sL-选择素;然而,在治疗后 24 小时内,出现反弹疼痛的参与者的 sL-选择素水平更高(地塞米松或安慰剂)。该 ACS 评估工具具有可行性,并且 sL-选择素是 ACS 治疗的有前途的生物标志物。