CLINICAL MANIFESTATIONS OF CALCIUM OXALATE MONOHYDRATE AND DIHYDRATE UROLITHIASIS

KOIDE, TAKUO
ITATANI, HIROAKI
YOSHIOKA, TOSHIAKI
ITO, HIROSHI
NAMIKI, MIKIO
NAKANO, ETSUJI
OKUYAMA, AKIHIKO
TAKEMOTO, MASATO
SONODA, TAKAO

From the Departments of Urology, Osaka University School of Medicine and Sumitomo Hospital, Osaka, Japan

Accepted for publication May 8, 1981.

Journal of Urology 127(6):p 1067-1069, June 1982. | DOI: 10.1016/S0022-5347(17)54229-9

We studied retrospectively 155 patients with calcium oxalate urolithiasis. The patients were divided into 3 groups: 1) those with calcium oxalate monohydrate, 2) those with calcium oxalate dihydrate and 3) those with mixed calcium oxalate monohydrate and dihydrate. Various differences were noted between patients with calcium oxalate monohydrate and those with calcium oxalate dihydrate, with respect to stone characteristics, spontaneous passage of stones, stone recurrence and multiple occurrence. Most important, we noted that patients with calcium oxalate dihydrate had more stone recurrences than patients with calcium oxalate monohydrate.