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Tschuor et al. Mini-invasive Surg 2020;4:72  I  http://dx.doi.org/10.20517/2574-1225.2020.39                                   Page 3 of 12

                                         Table 1. Equipment for robotic pancreatic procedures
                            Items                                Details (number)
                                                                  TM
                            Robotic system                   Da Vinci  Xi
                            Robotic instruments              30-degree camera
                                                                  TM
                                                             Prograsp
                                                             Fenestrated Bipolar
                                                             Mono-polar scissors
                                                             Large and diamond needle drivers
                                                             Bipolar vessel sealing device
                                                             Large clip applier
                                                             Robotic bulldog clamps
                                                             Ultrasound probe
                            Ports                            12 mm assistant trocars
                                                             (4) 8 mm robotic trocars
                            Basic laparoscopic tray          Veress needle
                                                             Suction - irrigation
                                                             Needle drivers
                                                             Stapling devices on standby
                            Suture                           0 Vicryl suture
                                                             4-0 V-lock
                                                             4-0 Monocryl, cut to 20/15/12 cm
                                                             5-0 Monocryl, cut to 12 cm
                                                             6-0 Monocryl, cut to 12 cm
                                                                     TM
                            Specimen bags                    Cook LapSac  - 5 × 8, 8 × 10 (inches)
                            Drains                           19 French Blake drain

               Entry and port placement
               Access is obtained by an infraumbilical incision and abdominal insufflation via a Veress needle followed
               by a 12-mm bladeless trocar insertion. In patients with previous surgery, insufflation may be obtained by
               placing a Veress needle in the left subcostal region in the mid clavicular line followed by entry with a 5-mm
               bladeless trocar and 5-mm laparoscope.


               Using the Xi system, the 12-mm umbilical port is used as the assistant port. This may also serve as a robotic
               working port (robotic stapler). The robotic ports are placed along a straight line at variable distance from
               target anatomy depending on the patient’s body habitus. The robotic camera trocar is placed in the right
               mid-clavicular line. Two working ports are placed on the left, with one on the right at distance of 6-8 cm
               between each port [Figure 1A (DPS) and B (PD)]. When using the robotic stapler, the 12-mm robotic
               trocar is inserted at the site of the assistant port followed by bringing down arm number 3.


               DISTAL PANCREATECTOMY AND SPLENECTOMY
               ProGrasp TM  and fenestrated bipolar forceps are used to enter the lesser sac. The robotic vessel sealer is
               used to divide the gastrocolic and splenocolic ligament. Congenital adhesions posterior between the
               stomach and pancreas or adhesions are released with the help of the vessel sealer. To facilitate and optimize
               exposure, the posterior surface of the stomach is subsequently suspended to the anterior abdominal wall
               with a running barbed suture [Figure 2].

               Tumor location and its relation to key vascular structures are confirmed using the intraoperative ultrasound
               probe. The TilePro TM  picture overlay option enables simultaneous visualization of the ultrasound images
               and identification of structures in the operative field.


               Next, the peritoneum overlying the inferior border of the pancreas is incised using monopolar scissors.
               Further dissection along the plane between the posterior aspect of the pancreas and the retroperitoneum
               from medial to lateral is performed. Superior mesenteric vein (SMV) and portosplenic confluence are
               identified as dissection and tunneling continues toward the superior border of the pancreas [Figure 3].
               Robotic micro-clips are used to clip small venous branches draining directly from the pancreas into
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