Ces Urol 2017, 21(2):147-153 | DOI: 10.48095/cccu2017013

Functional results of pyeloplasty performed in infancy

Jan Šarapatka, Oldřich Šmakal, Jan Vrána

Urologická klinika LF UP a FN Olomouc

Šarapatka J, Šmakal J, Vrána J. Functional results of pyeloplasty performed in infancy.

Aim: The aim of this study was to evaluate the effectiveness of early pyeloplasty by comparing pre-operative and post-operative ultrasound (US) and radionuclide findings in a group of children undergoing surgery for ureteropelvic junction obstruction (UPJ) in the first year of life, with a group of children undergoing surgery later in life.

Method: A prospective evaluation of a group of children who underwent surgery for UPJ obstruction between 2004-2012 at University Hospital Olomouc was made. 190 children underwent surgery, of which 110 during the first year of life (group 1) and 80 children above the age of 1 (group 2). US parameters (kidney length, anteroposterior renal pelvis diameter, parenchymal thickness) and radionuclide findings (split renal function, UPJ obstruction) before surgery and in the 1^st, 2^nd and 3^rd year after surgery were monitored. Statistically, the parameters in each group with contralateral healthy kidneys and between individual groups were analysed.

Results: Group 1 showed a percentage increase, compared with group 2: of 26 % / 11% respectively in the length of kidney, 200 % / 94.7 % in parenchyma, and 6.7 % / 2 % in kidney function. In both groups the reduction in ureteropelvic dilation was comparable.

Conclusion: The results of the study confirm the effectiveness of pyeloplasty conducted in early infancy. In this group of children there was more significant post-operative increase in kidney length, kidney parenchyma and kidney function in comparison with the group of older children.

Keywords: Hydronephrosis, pelvi-ureteric junction obstruction, pyeloplasty.

Received: March 13, 2017; Accepted: May 1, 2017; Prepublished online: June 13, 2017; Published: June 28, 2017