Abstract
Minimally invasive surgery is considered to be the gold standard treatment for nephrectomy in children. In recent decades it has been proposed that laparoendoscopic single-site (LESS) surgery is a feasible alternative to perform laparoscopic nephrectomies. The aim of our study was to compare the safety and efficacy of LESS against conventional laparoscopic (CL) nephrectomy. From March 2010 to November 2012 charts of pediatric patients who underwent laparoscopic nephrectomy at our tertiary center were revised. The data from 23 nephrectomies performed by either LESS or conventional laparoscopic approach were analyzed retrospectively. A transperitoneal approach was selected for both modalities. Indications for surgery included multicystic dysplastic kidneys (MCDK), hydronephrosis, vesicoureteral reflux (VUR), and renal dysplasia. Malignancy and previous abdominal interventions were exclusion criteria. Differences with a p value less than 0.05 were considered to be statistically significant. Twenty-three laparoscopic nephrectomies were performed, 13 by CL (53.5%) and 10 by LESS (46.5%). The mean age of patients was 3.29±3.5 years. There were no significant differences in age, gender, laterality of pathology, size of the kidneys, and surgical indications between the groups (p=0.067, 0.431, 0.94, 0.644, and 0.078, respectively). The mean operative times were 120min for LESS and 132.7min for CL (p=0.334). No procedures required conversion to open surgery or to standard laparoscopy. There was one intraoperative complication in each group (p=0.845). The mean length of stay (LOS), narcotic usages, and postoperative complications were similar in both groups. To overcome technical difficulties of the LESS approach, articulated tools have been developed. However, they may be not suitable for use with younger children. Although we performed LESS nephrectomies with conventional laparoscopic instruments, in our study, LESS and CL approach were comparable in terms of operative time, analgesic therapy, LOS, and complications. LESS nephrectomy for benign kidney diseases performed by skilled laparoscopic surgeons is safe and comparable with CL technique in pediatric patients. However, although minimally invasive development pushes towards "a scar-free surgery" (see Figure), these approaches have been performed in only a few centers in the world. Prospective studies comparing both approaches are necessary to verify the advantages of LESS nephrectomy in children.
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