Metabolic risk factors in patients with ureteropelvic junction obstruction and renal calculi

被引:22
作者
Matin, SF [1 ]
Streem, SB [1 ]
机构
[1] Cleveland Clin Fdn, Dept Urol, Cleveland, OH 44195 USA
关键词
kidney; kidney calculi; metabolic diseases; risk factors; ureteral obstruction;
D O I
10.1016/S0022-5347(05)67518-0
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Purpose: We performed a prospective study to determine the incidence and spectrum of metabolic abnormalities predisposing to stone formation in patients with ureteropelvic junction obstruction and renal calculi. Materials and Methods: A total of 47 consecutive patients with congenital ureteropelvic junction obstruction underwent metabolic evaluation of stone risk factors. Of these patients 21 had associated stones (study group), while 26 did not (control group). Logistical regression, Wilcoxon rank sum and Fisher's exact tests were performed to determine whether there was a significant difference between these groups in regard to the presence of metabolic risk factors. Results: Demographically and symptomatically the 2 groups were equivalent; except that the study patients were older. The 24-hour urinary excretion of calcium was significantly higher in study than in the control patients (p = 0.007). While the incidence of hypercalciuria and hyperuricosuria was also higher in the study population, these differences were not significant (p = 0.08 and 0.07, respectively). Conclusions: Metabolic abnormalities predisposing to stone formation are present more frequently in patients with ureteropelvic junction obstruction who have associated stones compared to those who do not. As such, urinary stasis alone does not explain stone formation in these cases. Rather, the local physiological environment of urine likely has a predisposing role. In addition to restoring unobstructed urinary flow, consideration should be given to metabolic evaluation and prophylactic treatment for affected patients.
引用
收藏
页码:1676 / 1678
页数:3
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