[Laparoendoscopic single site (LESS) ureteral reimplantation.].

Objective: To present in detail our surgical technique and to show our initial experience with ureteral reimplantation using the transumbilical LESS approach to treat patients with ureteral stenosis secondary to various diseases and surgical complications.

Methods: We performed 7 ureteral reimplantations from February 2012, using the multichannel Richard- Wolf (KeyPort) platform placed transumbilical by a small 2-2,5 cm transversal incision. We always use a 3.5 mm minilaparoscopy accessory trocar in the right iliac fossa, that is crucial to perform the laparoscopic suturing safely for the patient and in an optimal time. The etiology of ureteral lesions was: 1 endometriosis, 1 symptomatic ureterocele not responding to endoscopic treatment, 1 ureteral lesion after ureteroscopy for lithiasis, 1 ureteral lesion after radical prostatectomy and 3 gynecologic iatrogenic lesions (1 laparoscopically assisted vaginal hysterectomy, 2 radical hysterectomies with double anexectomy for cervix carcinoma). 5 ureteral reimplantations were left and 2 right sides. Before surgery, 5 patients had nephrostomy tubes inserted and the patient with endometriosis had a double J catheter. The patient with ureterocele did not require urinary diversion before the operation and endoscopic intraoperative catheterization was not feasible.

Results: We present the operative and postoperative results of the patients undergoing surgery. They had a mean age of 49.3 [28-78] years. Mean intraoperative estimated blood loss was 132.1 [100-250] ml, with no transfusions required. Mean operative time was 127.4 [120-210] minutes, with no conversions to laparoscopic or open surgery required. Mean hospital stay was 2.1 [2-3] days and all patients had drainage removed at 48 hours. There were minor Clavien-Dindo complications in one patient presenting urinary tract infection 10 days after the operation. All patients had double J catheters that were removed with a mean of 34.3 [30-45] days. Mean time for bladder catheter removal was 7.8 [7-10] días. With a mean follow up of 32.6 [14-54] months no ureteral stenosis recurrence has been observed.

Conclusions: LESS ureteral reimplantation, in our initial experience, shows a low complication rate, similar to current laparoscopic series, offering less postoperative pain and abdominal wall aggression with great cosmetic results that are perceived by patients very positively, in addition to rapid recovery and return to normal daily life.