摘要目的 探讨头孢曲松钠引发尿路结石的理化性质. 方法 2012年4月收检头孢曲松钠引发的儿童尿路结石2例.其中1例于2012年3月行头孢曲松钠治疗,过程中突发尿路结石,经治疗后自行排出沙粒状结石.另一例于2012年4月行头孢曲松钠治疗5d后突发下腹痛、呕吐,B超检查示右输尿管结石,KUB检查未见结石影,CT检查示右输尿管上段结石伴积水.保守治疗3d后结石排出,复查B超和IVU未见结石影.采用红外光谱、扫描电子显微镜及能谱仪分析2例尿路结石的成分. 结果 2例尿路结石样本均由头孢曲松和钙离子构成,摩尔比为1∶1. 结论 头孢曲松钠可引发尿石症,该结石具有X线下不显影的影像学特征,尿路结石成分为头孢曲松钙盐.

abstractsObjective To investigate the physicochemical characteristics of urinary stone induced by ceftriaxone.Methods Two children cefriaxone-associated urinary stone samples were received for component analysis in our hospital in April 2012,of which one was from a boy whose clinical data was not available,and the other was from a boy who suffered acute lower abdominal pain and vomiting after treatment with ceftriaxone for 5 d in early April.Ultrasound demonstrated a stone in his right upper ureter.Computed tomography showed right upper ureteral stone,which was radiolucent on plain abdominal radiograph.After a conservative treatment for 3 d,the stone in right upper ureter was spontaneously passed,which was confirmed by the ultrasound and intravenous pyelography.The two received stone samples were analyzed by infrared spectroscopy,scanning electron microscopy and energy disperse spectroscopy for component analysis.Results The compositions of two stone samples were free ceftriaxone and calcium ions combined with a molar ratio of 1:1.Conclusions The ceftriaxone could induce urinary stone in children.This special stone has radiolueent imaging,and it is composed of calcium ceftriaxone salt.