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19–22 APRIL, 2017, BARCELONA, SPAIN
CONCLUSIONS
Pediatric outpatient tubeless robotic upper tract reconstruction is feasible and safe. Further evalu-
ation is warranted to assess long-term outcomes of the reconstructions and to assess tubeless
reconstructions on a larger scale.
S15-14 (P without presentation)
OUTCOMES OF THE REMANENT RENAL MOIETY AFTER
TRANSPERITONEAL LAPAROSCOPIC HEMINEPHRECTOMY
Javier RUIZ, Juan CORBETTA, Santiago WELLER, Ramiro PEREA, Enrique LAGO,
Cristian SAGER, Carol BUREK, Victor DURAN and Juan Carlos LOPEZ
Hospital Pediatria J. P. Garrahan Buenos Aires, Urology, Ciudad Autonoma Buenos Aires, ARGENTINA
PURPOSE
Heminephrectomy is usually choosen as a first line treatment in sintomatic duplex kidneys with
a non functioning moiety and severe hydronephrosis. Laparoscopic approach has proven excellent
results with a low rate of complications, showing in retroperitoneal laparoscopic series a remanent
moiety lost rate of 0-9%. Our purpose is to evaluate long term results about the remanent moeity
function using a transperitoneal approach in this population.
MATERIAL AND METHODS
We have retrospectively reviewed the charts of 19 patients with Laparoscopic transperitoneal hem-
inefrectomy surgery in our institution during the 2011-2013 period and prospectively study them with
a one year postoperative DMSA nuclear scan and a doppler ultrasound to assess any percentage
of remanent renal moeity functional lost. We analized different preoperative and postoperative vari-
ables and compared them with the functional results.
RESULTS
Median age at surgery was 35,1 months. Nine patients (47,3%) were diagnosed prenatally and
10 has a history of urinary tract infections. Four patients had a previous ureterocele punction
procedure and 4 had documented vesicoureteral reflux (VUR) into the ipsilateral lower moeity.
There were no intraoperative complications and no conversions. Three patients developed urinary
tract infection postoperatively. A mean decrease of 5,5 % (4,7-17,4%) of relative renal function in
the remanent moiety was found in this cohort comparing both pre and postoperative nuclear scan
studies. There was no total lost of any remanent moiety function.
CONCLUSIONS
Transperitoneal laparoscopic heminephrectomy is a safe minimally invasive procedure in pediatric
patients. We found a mean decrease of 5,5% in function in the remanent moiety after the surgery. We
did not find any preoperative variable as a significant determinant of the functional value outcome.