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Acta bioquímica clínica latinoamericana

versión On-line ISSN 1851-6114

Resumen

BRUSAU, Elena Virginia; CAMI, Gerardo Enrique; CASTRO, Pedro Florencio  y  NARDA, Griselda Edith. Study of urinary lithiasis frequency in San Luis, Argentina by using infrared spectroscopy. Acta bioquím. clín. latinoam. [online]. 2009, vol.43, n.3, pp. 315-320. ISSN 1851-6114.

A study dealing with urinary lithiasis frequency in San Luis city, Argentina, applying infrared spectroscopy is reported for the first time. The infrared spectra of 169 urinary stones provided by public and private sanitary centers were analyzed. The most frequent chemical components found were calcium oxalate monohydrate, urates, calcium phosphate, magnesium ammonium phosphate hexahydrate and mixed compositions. Quantitative data analysis, performed by descriptive statistics enabled the determination of the most frecuent lithiasic composition for all the cases, as well as its distribution according to the corresponding age and sex. Calcium oxalate monohydrate and urates were more frequently found in men than in women ranging between 21- 60 and between 41-70 years old, respectively. The inverse ratio is determined for calcium or magnesium phosphates, women being the most affected. Stones with mixed composition showed the same incidence in women and men.

Palabras llave : Urinary lithiasis; Infrared spectroscopy; Chemical composition; Statistical analysis; Composition-sex-age ratio; San Luis; Argentina.

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