Urinary reference values for stone risk factors in children.

Purpose: Reference values for stone risk factors in 24-hour urine samples for nonstone forming children are limited. We measured urinary stone risk factors in healthy children 3 to 18 years old, and sought to determine whether the risk factors are affected by age.

Materials And Methods: A total of 48 healthy subjects with no history of stone disease, endocrine abnormalities or urological surgery were recruited from the Naval Medical Center in San Diego.

Congenital mid ureteral strictures.

Purpose: Congenital mid ureteral stricture is rare. We report 7 cases, and discuss the differences in preoperative evaluation and surgical management compared to other obstructive entities.

Materials And Methods: Medical records and imaging studies of 7 children identified with mid ureteral strictures between 1998 and 2002 were reviewed retrospectively.

Presentation of idiopathic retroperitoneal fibrosis in the pediatric population.

Idiopathic fibrosis of the retroperitoneum is rare in childhood. The authors describe an 11-year-old boy who presented with progressive renal failure, bilateral hydronephrosis, hypertension, and elevated erythrocyte sedimentation rate (ESR) owing to retroperitoneal fibrosis. Ureterolysis was performed with improvement in his creatinine level and blood pressure.

Prospective evaluation of human chorionic gonadotropin in the differentiation of undescended testes from retractile testes.

Purpose: We prospectively evaluated the efficacy of human chorionic gonadotropin (HCG) in the treatment of undescended testis and sought to determine whether HCG assists in the differentiation of undescended testis from retractile testis.

Materials And Methods: Patients with undescended testes were offered HCG. Testis position, laterality and the presence or absence of a hypoplastic scrotum were noted.

Early hospital discharge for intravesical ureteroneocystostomy.

Purpose: Inpatient stays of 3 to 5 days are common in the surgical management of vesicoureteral reflux and often include the use of bladder catheters, ureteral stents and perivesical drains. We reviewed our recent experience, in which patients undergoing routine ureteroneocystostomy were often discharged home on postoperative day 1 to determine the safety and efficacy of our management.

Materials And Methods: Between July 1998 and March 2001 patients who underwent intravesical ureteroneocystostomy at 2 major tertiary care institutions were identified.