Postnatal management of antenatally detected hydronephrosis

Table 4 Measures to be taken within first 48 h after birth in infants diagnosed with antenatal hydronephrosis

USG	Suspected lower tract obstruction, e.g., Posterior urethral valves, prune belly syndrome
	Bilateral hydronephrosis with or without hydroureter
	Solitary kidney with APD > 15 mm or SFU grade 2 or more
Antibiotic	Suspected lower tract obstruction
prophylaxis	APD > 10 mm or SFU grade 2 or more in the third trimester
	Solitary kidney with hydronephrosis of any grade
	Bilateral hydronephrosis
VCUG	Suspected posterior urethral valves antenatally
Catheterization	Suspected lower tract obstruction-posterior urethral valve or prune belly syndrome

VCUG: Voiding cysto urethrogram; APD: Antero Posterior Diameter; SFU: Society of Fetal Urology; USG: Ultrasonography.