Page 5 - Canadian Urological Association/Pediatric Urologists of Canada guideline on the investigation and management of antenatally detected hydronephrosis

Summary of recommendations

3. VCUG not necessary in the evaluation of isolated low-

grade (SFU 1 and 2) HN with normal renal parenchyma

and symmetric renal size (Level 3 evidence, Grade C

recommendation)

4. High grade HN (SFU 3–4) should be investigated with a

VCUG, followed by diuretic renography if the HN cannot

be explained by VUR (Level 4 evidence, Grade D

recommendation)