Moscow region metabolic types of urolithiasis occurrence: сomparative analysis for 1990-2000 period

Introduction. Urolithiasis incidence varies greatly in different countries (1-5% in Asia, 5-9% in Europe, 13% in Nothern America, up to 20% in Saudi Arabia). Nevertheless epidemiological researches in 10 countries showed similarity in metabolic types of lithiasis structure. Materials and methods. Chemical compound of 1719 calculi was analyzed. All calculi were removed surgically, fragmented by extracorporal shock-wave lithotripsy or came out by themselves in patients with urolithiasis managed in Scientisic Research Institute of Urology, Russian Healthcare Department in a period of 1990 - 2000. Mineral compound of calculi was identified with modified Hitachi 270-30 spectrophotometer. Received data was analyzed and compared with data of calculi chemical compound of foregoing 5 years (1984- 1989). Results. It was shown that oxalate lithiasis remains predominant mineralogical type in Moscow region in a period of 1980 - 2000. Oxalate lithiasis incidence increased from 45.4% to 63.4% (P