More than 85% of renal stone contain calcium but rarely the patients with calcium stone excrete more than 200 mg calcium in their 24th urin.It seems these patients don't excrete calcium more than normal all the day, but depend amount of water and calcium that they consume they have hypercalciuria intermittently and at the same time they may produce renal stone.In urologic field evaluation of etiology of renal stone in patients is one of complex and difficult subject.Dr. Pak compared calcium to creatinine of urine that collect before and after consuming one gram calcium. He could find so many patients with calcium and other electrolite abnormality.In our country urologists don't usePak test for evaluation of patients with calcium renal stones routinly.We used Pak test in our patients who had renal stones at shafiieh hospital from September to december in 1995.We chose 30 patients that undergo surgery for renal stone or passed renal stone (their stones were calcium oxalate). 22 patients with Pak test showed some form of hypercalciuria but 4 patients had hypercalciuria in 24h urine (>200 mg). There were significant difference between two tests with mantel hoenzal test (P<0.01).
نوع مطالعه:
مقاله پژوهشی |
دریافت: 1387/8/22 | پذیرش: 1378/12/25 | انتشار: 1378/12/25