title: A case of idiopathic diabetes insipidus presented with bilateral hydroureteronephrosis and neurogenic bladder: A pediatric case report and literature review.
abstract: Diabetes insipidus (DI) is a condition with heterogeneous clinical symptoms characterized by polyuria (urine output >4 mL/kg/hr) and polydipsia (water intake >2 L/m (2)/d). In children, acquired nephrogenic DI (NDI) is more common than central DI (CDI). Diagnosis is based on the presence of high plasma osmolality and low urinary osmolality with significant water diuresis. A water deprivation test with vasopressin challenge, though has limitations, is done to differentiate NDI from CDI and diagnose their incomplete forms. Neonates and young infants are better managed with hydration therapy alone. Older children with CDI are treated with desmopressin (1-deamino-8-D-arginine vasopressin, dDAVP). Its oral form is safe, highly effective and has dosing flexibility. We report a case of an 8-year-old male patient with CDI with severe bilateral non-obstructive hydronephrosis and megaureter. Dramatic clinical and radiological responses to dDAVP treatment were achieved and therapy reduced urine volume and led to marked radiological improvement in hydronephrosis.
authors.affiliation: Fatih Sultan Mehmet Research and Training Hospital, Department of Urology, Içerenkoy/Atasehir, İstanbul, Turkey;
authors.forename: Ozgur Haki
authors.initials: OH
authors.lastname: Yuksel
authors.affiliation: Mus State Hospital, Mus, Turkey.
authors.forename: Mithat
authors.initials: M
authors.lastname: Kivrak
authors.affiliation: Fatih Sultan Mehmet Research and Training Hospital, Department of Urology, Içerenkoy/Atasehir, İstanbul, Turkey;
authors.forename: Aytac
authors.initials: A
authors.lastname: Sahin
authors.affiliation: Fatih Sultan Mehmet Research and Training Hospital, Department of Urology, Içerenkoy/Atasehir, İstanbul, Turkey;
authors.forename: Serkan
authors.initials: S
authors.lastname: Akan
authors.affiliation: Fatih Sultan Mehmet Research and Training Hospital, Department of Urology, Içerenkoy/Atasehir, İstanbul, Turkey;
authors.forename: Ahmet
authors.initials: A
authors.lastname: Urkmez
authors.affiliation: Fatih Sultan Mehmet Research and Training Hospital, Department of Urology, Içerenkoy/Atasehir, İstanbul, Turkey;
authors.forename: Ayhan
authors.initials: A
authors.lastname: Verit