engleski

The Pattern of Urinary-Tract Stone Disease in Croatia

In this study, 10, 000 consecutive urinary calculi that were passed or operatively removed from patients originating from the continental part of Croatia were analyzed, using the semiquantitative infrared spectrometric method: 45% of stone formers had a single stone, 16, 0% multiple stones, 5, 5% passed "sand", and for 34, 5% there were no date. The ratio of frequency between males and females was 51%:49%. The stones weighed 0.01-123.9 g. On the cut surface in 17.5% of stones, the cores were discernible. In stones with cores, the cores and the shells were analyzed separately. In the remanider, the stones were analyzed as a whole, and information on the principal components, admixtures, and traces was obtained. A compound present in a concentration of 25% or more was considered a principal component. In stones having a core, the core was most frequently composed of phosphates (53.2%) and the shells of oxalates (56.5%). In the stones analyzed as a whole, the principal components were as follows: oxalates in 49.3%, phosphates in 37.8% (among them struvite in 10.1%), uric acid compounds in 9.7% (among them ammonium hydrogen urate in 0.06%), cystine in 0.3%, and other consituents in 2.9%. Only 10.4% of stones were found to be pure, consisting of only one component. At present, a multicentric study of urolithiasis is taking place in Croatia. Relevant clinical data are being stored in the computer center and are available for the investigations and a more detailed characterization of urolithiasis. The data presented in this paper suggest that the pattern of urinary stone composition highly resembles the pattern found in the majority of developed European countries, wehereas there is a marked difference if compared with other regions of Yugoslavia, for example, Dalmatia and SAP Kosovo

urinary-tract stone

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