Elliot J S, Rabinowitz I N
J Urol. 1980 Mar;123(3):324-7. doi: 10.1016/s0022-5347(17)55918-2.
Studies of calcium oxalate crystals in urine suggest similarities to crystal growth in calcium oxalate renal calculi. Previous reports indicate that urinary crystals in patients in whom stones form are larger than those in normal subjects. We report herein a study on crystal size by structure and habit (shape) based on direct microscopic measurement of crystals in urine of 27 normal subjects and in 6 of 22 patients in whom stones form. The mean size of all crystals in normal subjects is 12.0 plus or minus 7.8 micrometers. Calcium oxalate monohydrate crystals are significantly smaller than calcium oxalate dihydrate (p less than 0.01). In 22 patients with stones there was no correlation between crystalluria and severity or duration of disease. The mean crystal size in 6 patients did not support the conclusion that patients in whom stones form excrete larger crystals than normal subjects.
对尿中草酸钙晶体的研究表明，其与草酸钙肾结石中的晶体生长存在相似性。先前的报告指出，形成结石的患者尿中的晶体比正常受试者的更大。我们在此报告一项基于对27名正常受试者以及22名结石形成患者中的6名患者尿液中的晶体进行直接显微镜测量，关于晶体大小按结构和习性（形状）的研究。正常受试者中所有晶体的平均大小为12.0±7.8微米。一水合草酸钙晶体明显小于二水合草酸钙晶体（p<0.01）。在22名结石患者中，结晶尿与疾病的严重程度或病程之间无相关性。6名患者的平均晶体大小并不支持结石形成患者排出的晶体比正常受试者更大这一结论。
