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Page 10 of 15                                        Kumar et al. Mini-invasive Surg 2018;2:19  I  http://dx.doi.org/10.20517/2574-1225.2018.26

                                                                         Pubic symphysis
                                       Vas deferens divided  Dissection anterior to SV till Denonvillier's fascia is cut







                                                            Seminal vesicle
                                          Left ureter

                                                                 Rectum


                                     Figure 7. Laparoscopic anterior resection with seminal vesicle excision











                                                                     Rectum






                                                                   Vas deferens


                                                               Seminal vesicle





                                 Figure 8. Specimen of laparoscopic anterior resection with seminal vesicle excision

               surgery are paramount for successful laparoscopic extended resections. Nagasaki et al.  confirmed the role of
                                                                                      [25]
               laparoscopic extended resections for locally recurrent rectal cancer to achieve R0 resection.

               The reports on robotic extended resections are scarce. One of the largest series of robotic extended resections
               was published by Shin et al. . The study included eight prostate or seminal vesicle excisions, three partial
                                       [74]
               cystectomies, and five partial vaginal wall excisions along with other multi visceral resections. There were
               urinary leakage in one patient and five patients developed urinary retention. R0 resection was achieved in
               all patients. The 5-year cumulative local recurrence rate was 3.6%. The 5-year actuarial disease-free rate was
               54.6% and an OS rate was 80%. The authors confirmed that the robotic extended resection is safe and feasible
               with good perioperative outcomes, a low risk for conversion, a high rate of R0 resection, and acceptable long-
               term oncological outcomes.



               ABDOMINOSACRAL RESECTION
               Abdominosacral resection is required when locally advanced/recurrent rectal cancer involves presacral
               fascia and sacrum. Williams  et al.  reported an R0 resection following laparoscopic abdominosacral
                                              [75]
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