Eight patients were enrolled in the study. Each had at least one kidney stone sized 15 mm or less. The study was divided into two 6-week periods. In the first 6-week period the subjects were told to drink 1500 ml of water a day. In the second 6-week period, they were given potassium citrate and potassium bicarbonate. These were the results:
During the first period of treatment stone burden remained unchanged in all patients. On the contrary after 6 weeks of potassium citrate/bicarbonate treatment, complete stone dissolution was found in three of the patients. In the other five cases a partial dissolution was observed and in two of them complete dissolution of the stone was achieved after prolongation of the treatment for 4 and 6 month[s] respectively.M., in comparison, had a 25 mm stone, which dissolved in 21 days.
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