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[Clinical studies of the recurrence of urolithiasis (4). Crystal formation in urine and stone recurrence].
Hinyokika Kiyo. 1988 Sep; 34(9):1543-7.HK

Abstract

Relationship between stone formation and crystal formation in urine was studied. Crystals in the sediments of early morning urine in 238 stone formers and the same numbers of non-stone formers were examined by light microscopy. Almost all crystals found in the early morning urine were composed of calcium oxalate both in stone formers and in non-stone formers. The frequency of calcium oxalate crystal formation was slightly higher in stone formers than in non-stone formers, but, no significant difference was noted. On the other hand, the urine containing calcium oxalate crystals of the stone formers had significantly lower specific gravity than that of the non-stone formers. Calcium oxalate crystals in the urine were formed significantly more frequently in the recurrent or bilateral male stone formers than in male unilateral stone formers without previous stone history. Frequency of calcium oxalate crystal formation was not influenced by urinary excretion of calcium, oxalate, uric acid, phosphate and magnesium. These finding led us to the conclusion that it was clinically useful to measure urinary specific gravity in which calcium oxalate crystals were formed in predicting the risk of stone formation.

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Authors+Show Affiliations

Murayama T
Department of Urology, Sagamihara National Hospital.
Taguchi H
No affiliation info available

MeSH

Calcium OxalateCrystallizationFemaleHumansMaleRecurrenceRisk FactorsSpecific GravityUrinary Calculi

Pub Type(s)

English Abstract
Journal Article

Language

jpn

PubMed ID

3213790

Citation

Murayama, T, and H Taguchi. "[Clinical Studies of the Recurrence of Urolithiasis (4). Crystal Formation in Urine and Stone Recurrence]." Hinyokika Kiyo. Acta Urologica Japonica, vol. 34, no. 9, 1988, pp. 1543-7.
Murayama T, Taguchi H. [Clinical studies of the recurrence of urolithiasis (4). Crystal formation in urine and stone recurrence]. Hinyokika Kiyo. 1988;34(9):1543-7.
Murayama, T., & Taguchi, H. (1988). [Clinical studies of the recurrence of urolithiasis (4). Crystal formation in urine and stone recurrence]. Hinyokika Kiyo. Acta Urologica Japonica, 34(9), 1543-7.
Murayama T, Taguchi H. [Clinical Studies of the Recurrence of Urolithiasis (4). Crystal Formation in Urine and Stone Recurrence]. Hinyokika Kiyo. 1988;34(9):1543-7. PubMed PMID: 3213790.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Clinical studies of the recurrence of urolithiasis (4). Crystal formation in urine and stone recurrence]. AU - Murayama,T, AU - Taguchi,H, PY - 1988/9/1/pubmed PY - 1988/9/1/medline PY - 1988/9/1/entrez SP - 1543 EP - 7 JF - Hinyokika kiyo. Acta urologica Japonica JO - Hinyokika Kiyo VL - 34 IS - 9 N2 - Relationship between stone formation and crystal formation in urine was studied. Crystals in the sediments of early morning urine in 238 stone formers and the same numbers of non-stone formers were examined by light microscopy. Almost all crystals found in the early morning urine were composed of calcium oxalate both in stone formers and in non-stone formers. The frequency of calcium oxalate crystal formation was slightly higher in stone formers than in non-stone formers, but, no significant difference was noted. On the other hand, the urine containing calcium oxalate crystals of the stone formers had significantly lower specific gravity than that of the non-stone formers. Calcium oxalate crystals in the urine were formed significantly more frequently in the recurrent or bilateral male stone formers than in male unilateral stone formers without previous stone history. Frequency of calcium oxalate crystal formation was not influenced by urinary excretion of calcium, oxalate, uric acid, phosphate and magnesium. These finding led us to the conclusion that it was clinically useful to measure urinary specific gravity in which calcium oxalate crystals were formed in predicting the risk of stone formation. SN - 0018-1994 UR - https://www.unboundmedicine.com/medline/citation/3213790/[Clinical_studies_of_the_recurrence_of_urolithiasis__4___Crystal_formation_in_urine_and_stone_recurrence]_ L2 - https://repository.kulib.kyoto-u.ac.jp/dspace/handle/2433/119715 DB - PRIME DP - Unbound Medicine ER -