[Sarcoidosis and urolithiasis]
J A Lancina Martín1, C García Freire, L Busto Castañón
1Servicio de Urología, Hospital Juan Canalejo, La Coruña, España.
Objectives:
A retrospective study of patients with sarcoidosis and urinary lithiasis or lithogenic risk factors (hypercalcemia and hypercalciuria) was conducted to determine the degree of relationship of this disease with urinary lithogenesis.
Methods:
From 1978 to 1993, 96 patients with sarcoidosis (68 females and 28 males), aged 17 to 77 years (mean 43 yrs), were evaluated. Serum and 24-hour urinary calcium were determined by the cresolphthalein complexone procedure. The presence of urinary lithiasis was determined from patient clinical data and/or the findings of the imaging techniques that had been utilized to evaluate these patients.
Results:
6.3% were hypercalcemic, 26.6% were hypercalciuric, 6.2% had a previous history of urolithiasis and 8.3% had a urinary calculus at the initial consultation.
Conclusions:
Hypercalciuria was present in about 25% of the patients with sarcoidosis, whereas approximately 15% had clinically documented urinary lithiasis.
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