Objectives. To determine the feasibility of retrograde endopyelotomy i
n the management of pediatric ureteropelvic junction (UPJ) obstruction
. Methods. We treated 2 boys aged 4 and 6 years with the Acucise endop
yelotomy device for symptomatic ureteropelvic junction obstruction. Th
e Acucise device was placed over a Lunderquist guide wire with fluoros
copic guidance only and routine Double J catheters were left in situ f
or 6 weeks after the procedure. The morbidity of the treatment and the
short-term outcome were assessed. Results. There were no acute compli
cations and short-term follow-up results were satisfactory as determin
ed by intravenous urography and diuretic renography. Conclusions. Uret
eropelvic junction obstruction in children may be treated by retrograd
e endopyelotomy with the Acucise device. The principal potential advan
tage of this procedure is reduced morbidity. Our findings suggest that
further evaluation is warranted.