METHOD OF PREDICTING DEVELOPMENT OF UNILATERAL OR BILATERAL NEPHROLITHIASIS Russian patent published in 2010 - IPC A61B10/00 G01N33/84 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, in particular to urologic diagnostics and is intended for evaluation of prognosis of unilateral or bilateral stone formation development. Laboratory test of patient's urine is performed, by results PHU, MGU, R% and CH CAOX are obtained and linear classification discriminant functions are calculated by the following formulae: F1=-2076.27+22.89* PHU-9784.25* MGU+41.33* R%-2.76* CH CAOX, F2=-2068.17+23.82* PHU-9952.00* MGU+41.20* R%-2.98* CH CAOX, where: F1 - first classification discriminant function corresponds to group of patients with unilateral affection of kidneys, F2 - second discriminant function corresponds to group of patients with bilateral affection; PHU - pH of urine; MGU is concentration of urine magnesium, mole/l; R% is relative tubular reabsorption, %; CH CAOX is degree of urine saturation with calcium oxalate. After that obtained values of the first and second discriminant functions are compared, function whose value turns out to be higher, points to patient's belonging to corresponding group of patients.

EFFECT: method ensures increase of accuracy of unilateral or bilateral nephrolithiasis development.

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