The Predictors of Successful Oral Dissolution Therapy in Radiolucent Renal Stones; A Prospective Evaluation

"Eligible patients, who fulfilled the study criteria, will be instructed For; Oral alkalinization therapy~* Potassium citrate 20 mEq three times daily~* Hyperuricosuric patients (24-hours urine uric acid more than 750 mg/day in male and more than 650mg/day in females) will receive:~Allopurinol, a competitive inhibitor of xanthine oxidase, in a dose of 300 mg daily."

"Eligible patients, who fulfilled the study criteria, will be also instructed for;~Adequate fluid intake in order to maintain urine volume between 2-3 L per day."

Eligible patients, who fulfilled the study criteria and they are hyperuricosuric (24-hours urine uric acid more than 750 mg/day in male and more than 650mg/day in females) will be also instructed for; Dietary modification will be advised in the form of decrease purine rich diet as red meat and fish, increase vegetables.