Page 31 - World Association of Laparoscopic Surgeons - Journal
P. 31

B Srinivas

                          Table 2: Advantages and disadvantages of robot-assisted surgery vs conventional surgery
           Human strengths           Human limitations        Robot strengths         Robot limitations
           •  Strong hand-eye        •  Limited dexterity outside  •  Good geometric accuracy  •  No judgment
              coordination             natural scale
           •  Dexterous              •  Prone to tremor and fatigue •  Stable and untiring  •  Unable to use qualitative
           •  Flexible and adaptable  •  Limited geometric accuracy                      information
           •  Can integrate extensive and  •  Limited ability to use  •  Scale motion  •  Absence of haptic sensation
              diverse information      quantitative information  •  Can use diverse sensors  •  Expensive
           •  Rudimentary haptic abilities  •  Limited sterility  in control
           •  Able to use qualitative  •  Susceptible to radiation  •  May be sterilized  •  Technology in flux
              information              and infection          •  Resistant to radiation and  •  More studies needed
           •  Good judgment                                     infection
           •  Easy to instruct and debrief


          trials showed no difference in leakage and fistula rate  Whether the current-generation surgical robot is
          between pancreaticogastrostomy and pancreaticojejunos-  advanced enough to allow routine performance of pancreatic
          tomy. 21-23  The duct to mucosa technique was utilized for  head tumor resections remains to be seen. In an operation
          both pancreaticogastrostomy and hepaticojejunostomy.  like the Whipple procedure, where we rely so heavily on
          Such a technique showed low or at least the same rate of  blind palpation for careful dissection of the portal vein off
          leakage compared to the conventional method. 24,25  the posterior pancreatic surface, it is possible that the da
             Two major concerns that anticipate early adoption of  Vinci’s lack of haptic feedback may preclude its safe
          laparoscopic Whipple comprised of the difficult surgical  application. 28-30
          technique, resulting in a long operative time, as well the
                                                              CONCLUSION
          oncologic question about the adequacy of the laparoscopic
          operation. 19,26  To shorten the learning curve of laparoscopic  Robotic-assisted minimally invasive pancreaticoduodenec-
          approach, the hand-assisted hybrid technique had been used  tomy can be performed safely and effectively with
          with favorable results Table 2. Recently, robotic Whipple  significant individual and institutional preparation and
          using the da Vinci system has also been shown to be feasible  commitment. Safety is directly related to the surgical team’s
          and efficient. 27                                   ability to complete the operative procedure in an open
             All the benefits of minimally invasive surgery may be  fashion, and a breadth of experience dealing with complex
          expected from the robotic Whipple procedure. Patients  interoperative hepatobiliary complications. If oncological
          undergoing robotic procedure mobilize earlier than their  principles and/or safety are compromised, the procedure
          open counterparts. The median length of hospital stay is  needs to be converted to a standard open Whipple. 10
          6.2 days (range, 5.2-18.8), which compares favorably to  The patient requires an upfront frank preoperative
          open Whipple procedure,where the median length of   discussion regarding the novel approach of the minimally
                                                                                           15
                               10
          hospital stay is 7.9 days.  One of the principal objections  invasive pancreaticoduodenectomy.  Informed consent can
          to the robotic procedure is the increased duration of  be obtained if the benefits, risks and the alternatives—an
          operating time. The mean robotic operating time is 8 hours  open procedure—are discussed in detail. The robotic team
          (range 5.9-9.6), which again compares favorably open  should consist of expert pancreas and skilled robotic
          surgery where the mean operating time is 5.4 hours. 10  surgeons, nurses and operating room technicians. When the
             The robotic Whipple needs to conform to the standards  surgical team is motivated to push the frontiers of pancreas
          that have been set and validated for an open Whipple.  surgery, the patient will benefit from the minimally invasive
          Modifications and/or shortcuts to allow for use of the robot  procedure.
          should be avoided if the robotic resection cannot be
                                                              REFERENCES
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                                                               1. Kakar PN, Das J, Roy PM, Pant V. Robotic invasion of operation
          the procedure needs to be converted.
                                                                  theatre and associated anaesthetic issues: A review. Indian
             Giulianotti et al have reported a series of eight patients  J Anaesth 2011;55:18-25.
          in whom pancreaticoduodenectomies were performed     2. Weisbin CR, Montemerlo MD. NASA’s Telerobotic research
          completely laparoscopically with the assistance of the  program. Appl Intell 1992;2:113-25.
          robot. In this advanced technique, the hepaticojejunostomies  3. Kwoh YS, Hou J, Jonckheere EA, Hayall S. A robot with
                                                                  improved absolute positioning accuracy for CT guided
          and gastrojejunostomies were handsewn intracorporeally
                                                                  stereotactic brain surgery. IEEE Trans Biomed Engng Feb
          and the remnant pancreatic duct was injected with surgical  1988;35(2):153-61.
          glue. 28                                             4. FDA. Computer-assisted surgery. An update.

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