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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_1260_Библиотеки_им_академика_М_И_Перельмана

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Spleen-preserving pancreatectomy of the body and tail 459
pancreas. With ventral traction on the pancreas, the attachments to the retroperitoneum are divided.
At this step, we begin dissection of the origin of the splenic artery. We now move to the superior border of the pancreas to continue our dissection of the splenic artery. Here you can see the bifurcation between the splenic artery and hepatic artery. Now that the splenic artery is completely dissected at its origin, it can be clipped and divided.
The next step of the operation is pancreatic division at its neck. Here we begin the parenchymal transection just above the portal venous confluence. Here you can see the portal vein appearing in the background.
The last step of the operation is division of the splenic vein. The specimen is completely detached from the retro­peritoneum. On this image, the splenic artery stump, splenic vein stump, adrenal vein, renal vein, IMV, and SMV can be seen (Figure v25.2). The specimenis placed in the endoscopic retrieval bag for later removal. We are
planning on suture closing the transection surface of the pancreas. We are suture closing the pancreatic remnant, ensuring the pancreatic duct is well incooperated in the runningsuture.At completionof the case,we place a drain.
IMPORTANT POINTS
• Take time for hemostasis in order to achieve excellent working conditions.
• Avoid bleeding from the splenic vasculature, including the hilum when controlling the splenic vessels more proximally.
• Avoid injury to the retroperitoneal vessels such as the renal vein or adrenal gland.
• When taking the splenic vessels, inspect the spleen at the end of the case to ensure you have good perfusion.
• Should you have a splenic vein injury and need to take the splenic vein, you should also clip the splenic artery. This will avoid left-sided portal venous hypertension.
VIDEO 26
Pancreaticoduodenectomy
Video duration 20 minutes 9 seconds
In this video, we will show you a laparoscopic pancrea­ticoduodenectomy (Whipple procedure).
OUTLINE
The video is divided into the following parts:
• Port positioning
• Hepatic artery lymph node dissection
• Colonic mobilization
• Kocher maneuver
• Aortocaval lymph node dissection
• Portal venous confluence dissection
• Jejunal and gastric transection
• Gastroduodenal artery transection
• Pancreatic transection
• Retroperitoneal dissection
• Bile duct transection and indocyanine green (ICG) staining
• Important points.
Kocher maneuver, the operative surgeon stands at the left side of the patient (Figure v26.1). The rest of the surgery is performed from this position (Figure v26.2).
should not compromise the oncological soundness of the operation. Therefore, an adequate lymph node dissection should be performed. Several adhesions to the gallbladder are lyzed. We are following the cystic duct on to the portal structures and we will strip the porta of all lymphatic tissue. Here lymph node stations 5, 12, and 8a are removed. A hepatic artery injury should be avoided at this step. Here we are following the hepatic artery towards lymph node sta­tions 8p and 9. The dissection directly at the hepatic artery should be performed using scissors. The cystic duct and cystic artery are divided and the gallbladder removed.
deflected downwards. The deflection of the colon
For the colonic mobilization and the beginning of the
Performing the Whipple procedure laparoscopically
Before we can begin the Kocher maneuver, the colon is
Figure v26.1 For the colonic mobilization and the beginning of the Kocher maneuver, the operative surgeon stands at the left side of
the patient.
Laparoscopic Liver, Pancreas, and Biliary Surgery: Textbook and Illustrated Video Atlas, First Edition. Edited by Claudius Conrad and Brice Gayet. © 2017 John Wiley & Sons, Ltd. Published 2017 by John Wiley & Sons, Ltd.
460
Pancreaticoduodenectomy 461
Figure v26.2 The remainder of the operation following colonic mobilization and Kocher maneuver is performed from this position.
downwards follows our operative approach for right colectomy. We have to mobilize the colon just enough in order to begin the kocherization comfortably. For the Kocher maneuver, we ensure gentle traction on the duodenum; as we see here, the IVC is exposed. It is important to be gentle during duodenal retraction with the laparoscopic instruments in order to avoid perfora­tion. We recommend doing as much as possible of the Kocher maneuver above the transverse mesocolon because the exposure is easier.
We are performing an aortocaval lymph node dissec­tion b efore transecting the intestine, stomach or pan­creas. Only in very selective circumstances do we complete a Whipple if the aortocaval lymph nodes are positive. In order to avoid postoperative lymph leak,weareapplyingacliptothelymphaticvessel. The lymph nodes are sent for frozen section analysis. At this step, we will terminate the procedure if the lymph node(s) turn out to be positive.
This is the view along the IVC with the drainage of the left renal vein (Figure v26.3). Here we are removing the right celiac plexus which we are also sending for frozen section. Watch out for the celiac trunk at this step of the operation. We would discourage you from harvesting both the celiac plexi as this can lead to diarrhea that is difficult to manage (Figure v26.4).
We are now proceeding to the portal venous conflu­ence dissection. As in open surgery, injury to the portal venous confluence should be avoided at all costs. We are beginning our dissection at the inferior border of the pancreas and follow the jejunal branches towards the portal venous confluence. Here the portal vein comes into view. Here we are following the gastrocolic trunk to its drainage into the portal vein. The gastrocolic trunk will be
Figure v26.3 This is the view along the IVC with the drainage
of the left renal vein.
462 Video 26
Figure v26.4 We would discourage you from harvesting both the celiac plexi as this can lead to diarrhea that is difficult to manage.
divided using the energy device. Now the portal venous confluence has been dissected out.
The next stage is gastric and jejunal transection. Here you can see the division of the ligament of Treitz. In open surgery, creation of an anastomosis at the level of the ligament of Treitz is diffi cult but it is much easier in laparoscopic surgery. Creation of the anastomoses at the level of the lig ament of Treitz prevents having to mobilize a lot of the duodenum. An additional port is now placed to accommodate the stapler. Next we proceed to dividing the dista l stom­ach. The omentum and the gastroepiploic arca de are divided. The stomach is staple divided. Before trans­ecting the pancreas, we will control the gastro­duodenal artery (Fig ure v26.5).
The gastroduodenal artery is dissected out using scis­sors. As in open surgery, the gastroduodenal artery should be ligated with enough distance to the hepatic artery. The gastroduodenal artery is divided using ther­mofusion. Now the portal vein is exposed at the superior border of the pancreas.
We can now proceed to transect the pancreas. Pan­creatic transection is performed with the energy device.
The inferior pancreaticoduodenal arcade is controlled with stitches. Now the pancreas is completely trans­ected. Next is the retroperitoneal dissection. The je ju­num is p ulled through from the ligament of Tr eitz. We are now transecting the retroperitoneum along the
Figure v26.5 Before transecting the pancreas, we will control
the gastroduodenal artery.
Figure v26.6 This view demonstrates a replaced RHA.
Pancreaticoduodenectomy 463
SMA. Here, a replaced right hepatic artery come s into view (Figure v26.6). With blunt dissection and the bipolar forceps, the portal vein is detached from the retroperitoneum. The poste rior pancreaticoduodenal vein will be dissected out and divided. Here we are dividing the retroperitoneal attachments along the replaced right hepatic artery. Here the replaced right hepatic artery, superior mesenteric artery, and portal vein ca n be seen (Figure v26.7). The last ridge of peritoneal attachments is divided.
Finally, we will divide the bile duct and determine the perfusion of the pancreatic margin using ICG staining.Herewearedividingthebileductusing scissors. Prior to constructing a pancreaticoenteric anastomosis, we are controlling the perfusion of the pancreatic margin using systemic ICG administration with the near infrared laparoscopic camera (Figure v26.8). Using this technique, we are identifying an area of hypoperfusion. We resect this pancreatic area in the hope of reducing the pancreatic leak rate. Finally, we are mobilizing the pancreatic remnant stump for easier construction of the pancreaticoenteric anastomosis.
We have had mixed experiences with l aparoscopi­cally performed pancreaticogastrostomies and pan­creaticojejunostomies. At the beginning of the laparoscopic Whipple experien ce, we recom mend a mini-laparotomy at this step and reconstructing vi a an open technique.
Figure v26.7 Here we can see the replaced RHA, superior
mesenteric artery, and PV.
464 Video 26
Figure v26.8 Prior to constructing a pancreaticoenteric
anastomosis, we are controlling the perfusion of the pancreatic margin using systemic ICG administration with the near infrared laparoscopic camera. Using this technique, we are identifying an area of hypoperfusion.
IMPORTANT POINTS
• Patient selection is the key.
• Even performing a laparoscopic kocherization can help
in reducing the incision size.
• There should be no compromise of the oncological approach just because the procedure is performed laparoscopically.
• A laparoscopic approach prevents adhesions; however, adhesions might aid in containing a pancreatic fistula. Therefore, be aware of a visceral artery bleed in the postoperative period.
• Technical developments pertaining to the operative techniques might make panc reaticoenteric anastomosis safer in the future.
Afterword
Minimal invasive surgery has a firm place in many surgical fields. Open cholecystectomy and appendectomy have been almost completely replaced by laparoscopic procedures and inguinal hernias are also commonly performed through minimal invasive accesses. The low mortality and reduced morbidity of today’s bariatric surgery would not be possible with open surgery. Onco­logical procedures such as colectomies and rectal resec­tions can be safely performed using minimal access surgery with comparable outcomes to traditional surgery in experienced centers. The benefits of laparoscopic sur­gery are the smaller abdominal incisions which result in reduced postoperative pain and faster recovery time as well as the lower rate of incisional hernias. Minimal invasive procedures also have reduced blood loss and therefore require fewer blood transfusions. All these factors together result in reduced activation of the sys­temic inflammatory response as assessed by cytokines, which may also contribute to the overall faster recovery. For many patients, the better cosmetic results of laparo­scopic surgery are also important.
These benefits of minimal invasive surgery have been demonstrated in many large randomized controlled tri­als. However, they often come at the price of longer operating times, more expensive equipment, and longer learning curves because of the loss of three-dimensional view, loss of tactile feedback, and the fulcrum effect. These problems of laparoscopic surgery are paramount for operations in complex anatomical areas such as the hepatopancreatobiliary tract. It is noteworthy that the widened indications for laparoscopic procedures usually corresponded with advancements in instruments and devices that made more complex minimal invasive pro­cedures possible.
As the authors of the previous chapters have high­lighted, pancreatic surgery poses special problems for the adoption of minimal invasive procedures. The complex anatomical position of the pancreas in the retroperitoneal space, surrounded by vital organs and vessels, requires highly experienced surgeons with detailed knowledge of the anatomical situation to perform safe operations and
avoid potentially life-threatening complications. Besides expertise in pancreatic surgery, surgeons performing minimal invasive pancreatic procedures need profound training in advanced laparoscopy. Aside from surgeon factors, the technical setting must be appropriate. Lapa­roscopic devices, for example for the transection of the pancreas, should be improved to avoid pancreatic fistulas and other technical complications. Furthermore, laparo­scopic intracorporeal suturing is a challenging and time­consuming process, mainly responsible for the complica­tions and long duration of minimal invasive pancreati­coduodenectomy. Thus, it is quite possible to perform resection but not reconstruction.
These ramifications of minimal invasive surgery cur­rently limit a wider application of laparoscopy to distal pancreatectomy and maybe enucleation of small benign lesions. However, before routine clinical implementa­tion, well-designed and stringently conducted random­ized controlled trials must be performed in experienced centers to evaluate the safety and oncological outcome. As Rutz and Kooby nicely demonstrate in Chapter 23, the current evidence for minimal invasive distal pancreatec­tomy stems mainly from retrospective case series, with significant differences regarding type of tumor, clearly favoring benign and cystic lesions as well as smaller tumor sizes in the case of laparoscopic procedures. Ductal adenocarcinomas of the pancreas were only marginally investigated in the currently available studies. In our opinion, there is currently a limited role for minimal invasive approaches in pancreaticoduodenectomy, mainly owing to the difficulties of performing the pan­creaticojejunostomy and biliodigestive anastomosis. The long duration of this operation and the associated mor­bidity currently outweigh its potential benefits. The very limited numbers of reports about these procedures in the 20 years since their first description indicate that there are many obstacles to a wider application. If these chal­lenges can be diminished and the duration of laparo­scopic pancreaticoduodenectomy can be shortened, the validity of this operation should be re-evaluated in ran­domized trials.
465
466 Afterword
In summary, the promises of minimal invasive surgery make it likely that laparoscopic pancreatic surgery will have benefits for patients. Laparoscopic pancreatic sur­gery should be evaluated in randomized controlled trials to establish its true benefit. If the promises hold up, it will be a viable alternative to open procedures in selected patients.
Beat Müller-Stich, Adrian T. Billeter,
and Markus W. Büchler
Department of General, Visceral,
and Transplantation Surgery,
University of Heidelberg Hospital,
Heidelberg, Germany
Afterword
Since the establishment of laparoscopic cholecystectomy, appendectomy or colorectal surgery, there has been growing evidence that well-selected patients with liver or pancreas tumors may have a greater benefit from laparoscopic surgery compared to an open approach. In particular, cirrhotic patients with well-preserved liver function might have the greatest benefit from a laparo­scopic approach. This new textbook on laparoscopic hepatopancreatobiliary (HPB) surgery illustrates the most current laparoscopic technologies used for resection of liver and pancreas tumors. The chapters are authored by well-known experts in HPB surgery and summarize the rapid developments in this area. The 24 comprehen­sive chapters cover the presented topics in depth and are illustrated by many color images. The book provides the
latest information not only on minimally invasive sur­gery but also on anatomical, imaging, and anesthesia aspects. It also covers cutting-edge surgical approaches such as robotic surgery and laparoscopic living donor hepatectomy. This book should become one of the classic references for those who are interested in laparoscopic HPB surgery.
Prof. Dr. med. Pierre-Alain Clavien, PhD
UniversitätsSpital Zürich
Klinik für Viszeral- und Transplantationschirurgie
Zürich, Switzerland
467
Index
Page numbers in italics indicate figures; page numbers in bold indicate tables
abdominal entry and closure
trocars 35–37, 36 wound protection 36–37, 37
abdominal insufflation 172 aberrant hepatic arteries 289 ablative therapy
concepts and definitions 257 equipment 39 hepatocellular carcinoma 257, 262–264 interventional radiology 109–112, 110, 111 key points 271 laparoscopic tumor ablation 267–268, 267 noncolorectal liver metastases 217, 264–265 open tumor ablation 267 overview of modalities 257–262 pancreatic tumors 268–270 percutaneous tumor ablation 266–267, 266 postablation follow-up 265–266, 265 pre-RFA transarterial embolization 264 primary liver cancer 187 strategies for liver and pancreas tumors 257–272 transplantation 264 treatment approach 266–268
Abulcasis 3–4 acute cholecystitis 66, 67–68,79 acute pancreatitis 344 adenomyomatosis 79–80, 80 adjuvant therapies
biliary tract cancers 190–192 colorectal liver metastases 203, 206–207 hepatocellular carcinoma 187–188 solid tumors of the pancreas 303–305, 305, 309
advanced bipolar vessel sealing devices 38, 38 AIPDA see anterior–inferior pancreaticoduodenal artery AIPDV see anterior–inferior American Joint Committee on Cancer (AJCC) 308 ampullary adenocarcinoma 107 anastomosis 435, 454, 462–463 anesthesia
anesthetic techniques 174 blood loss and preventive strategies 175–177 central nervous system and ocular effects 172–173 coagulation 171 complications 177–178 concepts and definitions 169 effects on hepatic physiology 173 fluid management 175
pancreaticoduodenal vein
hemodynamic function 172, 172, 174–175 hepatic blood flow 169 induction of 174 intraoperative monitoring 175 key points 180 laparoscopic liver surgery 169–184 liver pathophysiology 169–171 low CVP anesthesia 176 maintenance of 174 management of anesthetic 174–175 nonpharmacological interventions for blood loss 176–177 organ response to hepatic dysfunction 170 pathology 171 patient positioning 171, 172–175, 178, 179 pharmacological changes to metabolism 170, 171 pharmacological interventions for blood loss 176 physiology of pneumoperitoneum 171–173, 177–178 postoperative recovery 178 preoperative assessment 173 surgical interventions for blood loss 177
animal models 20–23, 22 anterior–inferior pancreaticoduodenal artery (AIPDA) 288–289,
289
anterior–inferior pancreaticoduodenal vein (AIPDV) 291 anterior sectionectomy 276 anterior–superior pancreaticoduodenal artery (ASPDA) 290 anterior–superior pancreaticoduodenal vein (ASPDV) 291 anti-EGFR therapy 204–205 antifibrinolytics 176 Arantius’ ligament 157–158 Aranzi, Giulio Cesare 4 argon plasma coagulation 39 arterial injury 105, 107 arterial stimulation with hepatic venous sampling (ASVS) 101, 102 articulating triangular retractor 41 ascites 114–115 ASPDA see anterior–superior ASPDV see anterior–superior pancreaticoduodenal vein ASVS see arterial stimulation with hepatic venous sampling augmented reality technology
achieving augmented reality 49–53 applications 53–58 challenges 58–59 concepts and definitions 47–49 console-integrated image overlay 57, 57 data alignment 50–52, 51,57 data visualization 59
pancreaticoduodenal artery
Laparoscopic Liver, Pancreas, and Biliary Surgery: Textbook and Illustrated Video Atlas, First Edition. Edited by Claudius Conrad and Brice Gayet. © 2017 John Wiley & Sons, Ltd. Published 2017 by John Wiley & Sons, Ltd.
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