CAKUT: congenital anomalies of the kidney and urinary tract; RPD: renal pelvic diameter; UPJ: ureteral pelvic junction.
* The role of prophylactic antibiotics in infants undergoing diagnostic evaluation for prenatally diagnosed hydronephrosis remains uncertain. In our practice, we reserve antibiotic prophylaxis for patients with bilateral ureteral dilation, an enlarged or thickened bladder, bilateral UPJ obstruction, or giant hydronephrosis (massively enlarged kidney with RPD >30 mm). We do not administer antibiotic prophylaxis if the hydronephrosis is low to moderate grade or if the ultrasound findings suggest classic unilateral UPJ-type obstruction (unilateral hydronephrosis with nondilated ureter, normal bladder, and normal contralateral kidney). Other centers provide prophylactic antibiotics for moderate hydronephrosis (ie, RPD between 10 to 15 mm).Do you want to add Medilib to your home screen?