Abstract:
OBJECTIVE:To evaluate the feasibility of pure robotic natural orifice translumenal endoscopic surgery (R-NOTES) nephrectomy. METHODS:Two R-NOTES nephrectomy approaches were attempted in 3 female cadavers. A single-port device was inserted through an incision in the posterior vaginal fornix. In the first approach, the peritoneal cavity was accessed in the lithotomy position. In the second approach, the retroperitoneum of 2 cadavers was accessed in the prone jackknife position. The ureter was identified and followed cranially. The hilum was stapled and the kidney was dissected. The specimen was extracted into a bag. The incision was closed with an open approach. RESULTS:The first approach was not possible because of collision of the robotic arms against the legs and limited bowel retraction. After modifying the approach, a right transvaginal R-NOTES retroperitoneal nephrectomy was successfully completed, without adding extra ports. Time for setup was 128 minutes. Time to identify the ureter was 53 minutes. Dissection and control of the renal pedicle was completed in 21 minutes. Time to complete the dissection and extraction of the kidney was 36 minutes. Time to complete the procedure was 238 minutes. There were no injuries to retroperitoneal organs or vessels. In the third cadaver, there was rectal injury during the access. We were unable to complete the procedure because of the cadaver height. CONCLUSION:Transvaginal R-NOTES nephrectomy is technically challenging but feasible in select female cadavers. Retroperitoneal approach in the prone jackknife position was instrumental in facilitating robotic access to the kidney through the vagina. Improvements in the technique and instrumentation are necessary to make this approach safe and reproducible.
journal_name
Urologyjournal_title
Urologyauthors
Laydner H,Autorino R,Isac W,Khalifeh A,Panumatrassamee K,Kassab A,Long JA,Eyraud R,Rizkala E,Stein RJ,Kaouk JHdoi
10.1016/j.urology.2012.11.083subject
Has Abstractpub_date
2013-06-01 00:00:00pages
1232-7issue
6eissn
0090-4295issn
1527-9995pii
S0090-4295(13)00149-0journal_volume
81pub_type
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