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19 Open Whipple
umbilical tape, or Penrose drain can be passed through the tunnel for ease of identi­cation and later retraction (Fig.19.1b).
335
Specimen Removal
The neck of the pancreas is then transected over the previously developed tunnel over the PV.The superior and inferior pancreatic vessels can be suture ligated to limit bleeding during neck transection. The pancreatic parenchyma may be divided either sharply or with electrocautery; the main pancreatic duct should be identied and the duct itself should be divided sharply.
Attention is then turned to freeing and removing the planned specimen. Proximally, either the antrum of the stomach is divided into the classic Whipple, or the rst portion of the duodenum is divided 1 or 2cm distal to the pylorus in the pylorus-preserving Whipple. Distally, the jejunum is transected distal to the liga­ment of Treitz. The exact location of jejunal transection is dependent on the planned route for reconstruction and should be chosen such that biliopancreatic limb can reach the planned region for anastomosis in a tension-free manner. The jejunum is mobilized proximally from its mesentery close to the bowel wall until the ligament of Treitz, which is then divided. At this point, the duodenum and proximal jejunum should be completely freed from the remaining intestine and its attachments. Next, the uncinate process and lateral neck of the pancreas are carefully mobilized and dissected from the SMA and SMV/PV, with identication and ligation of the vein of Belcher (posterosuperior pancreaticoduodenal vein). At this point, any remaining attachments to the uncinate and specimen are divided, and the Whipple specimen is removed from the operative eld (Fig.19.4).
Vascular Resection
If a venous resection is needed, rst the SMV should be fully dissected, and control of the inferior mesenteric vein (IMV), splenic vein, and left gastric vein should be achieved. Ligation of these veins may be necessary to fully resect the lesion. The PV and/or SMV can then be clamped proximally and distally, and the involved portion of the SMV or PV is then divided and removed with the specimen.
In some cases, the tumor may only just barely involve the lateral wall of the PV-SMV, in which case a tangential or primary repair of the vein may be consid­ered, as long as it does not result in signicant narrowing of the vein. However, more commonly a segmental vein resection is needed and thus reconstruction required. If there is adequate length of the portal vein, the PV may be reconstructed in an end-to-end fashion without the need for a graft. The right triangular ligament of the liver may also be divided for mobilization to further advance the reach of the proximal end of the vein.
336
Fig. 19.4 After the Whipple specimen has been removed, the PV-SMV conuence can be clearly visualized. X marks the transected bile duct [16]
R. C. Kim et al.
If there is inadequate length for a tension-free, primary end-to-end anastomosis of the resected vein, a conduit may be utilized using another donor vessel. Options include the internal jugular (IJ) vein or the superior femoral vein. The IJ may be harvested via an anterior neck incision along the sternocleidomastoid muscle. The supercial femoral vein may be harvested through a groin incision. If possible, the deep femoral vein should be preserved to avoid inadequate drainage of the lower extremity. The supercial femoral vein is typically narrower than the IJ, and choice of donor site should be dependent on patient-specic anatomy and SMV or PV cali­per. Use of the left renal vein and cadaveric or synthetic grafts has also been described.
Reconstruction
In preparation for the reconstruction portion of the operation, the biliopancreatic limb of the jejunum can be brought up the right upper quadrant either retromesen­teric via the ligament of Treitz or antimesenteric in the retrocolic space through a defect in the mesocolon to the right of the middle colic vessels.
Pancreaticojejunostomy
There are several variations in techniques and approaches to the pancreaticojejunos­tomy. To date, there has not been any consistent data supporting the superiority of one approach over others with regard to the rate of pancreatic leak or stula. The techniques can mainly be categorized into duct-to-mucosa techniques and invagina­tion or “dunking” techniques.
The duct-to-mucosa pancreaticojejunostomy is most commonly performed in a two-layered, end-to-side fashion. The original duct-to-mucosa technique was
19 Open Whipple
337
described by Cattel and Warren in 1956 with variations still in use [20]. The tissue is freed around the pancreatic stump. A posterior layer of interrupted sutures is placed between the posterior pancreatic capsule and seromuscular layer of the jeju­num. An enterotomy is made opposite to the pancreatic duct. Interrupted sutures are then placed between the pancreatic duct including some of the surrounding pancre­atic parenchyma and full thickness, including the mucosa, of the jejunal enterotomy. An anterior layer of interrupted sutures is then made between the anterior pancreatic capsule and seromuscular layer of the jejunum.
In the Blumgart technique [21], the rst layer consists of transpancreatic hori­zontal mattress-style sutures approximately 2cm from the cut surface of the pan­creas. For each suture, the suture is rst passed through and through and perpendicularly (straightening the needle may help to achieve this) to the pancreas from anterior to posterior. A small seromuscular bite is then taken along the jejunum approximately 3cm away from the transected edge of the bowel. The suture is then passed again perpendicularly through the pancreas posterior to anterior. The needle should kept on the suture later for the nal anterior layer. A probe may be placed in the pancreatic duct during the creation of this layer in order to ensure patency. The inner duct-to-mucosa layer is then completed; a small enterotomy is made in the jejunum approximately 1cm away from the line of horizontal sutures. The pancre­atic duct is then sewed to the enterotomy in an interrupted fashion. The posterior wall of the duct is completed rst, the tension between the ends removed with the previously made horizontal mattress-type sutures, then the anterior wall. Once this inner layer is tied down and complete, the previously placed horizontal mattress transpancreatic sutures are tied down. The layer is then nished by taking another small seromuscular bite of the jejunum, anterior to the now anastomosed enterot­omy, and tied down. The inferior most stitch is completed with two seromuscular jejunal bites, rst vertically through the jejunum, with the needle directed anteriorly, then horizontally up toward the pancreas. The superior most stitch is completed in a similar fashion, with rst a vertical jejunal bite, then a horizontal bite again directed back toward the pancreas. This allows the jejunum to fold over the anterior surface of the pancreas.
In the invagination pancreaticojejunostomy, all the cut edge of the pancreatic parenchyma is invaginated or “dunked” into the lumen of the jejunum. First, a pos­terior row of interrupted sutures are made from the pancreatic capsule, 1–2cm back from the cut surface of the pancreas, to the jejunum using seromuscular bites. Then, a large enough enterotomy is made in the jejunum such that the entire cut surface of the pancreas can be approximated to the jejunal lumen. An inner layer of running locking suture is then made, taking full thickness jejunal bites and large bites of both pancreatic parenchyma and capsule. Finally, an anterior layer of seromuscular sutures are completed similar to the rst posterior layer, rolling the jejunum onto the pancreatic capsule and fully “dunking” the pancreas. While the superiority of duct­to- mucosa vs invagination techniques has been debated, the ability to perform both types is useful for adapting to differences in pancreatic duct size and texture [22].
As mentioned earlier, there are many other approaches to the pancreaticojejunos­tomy, or modications of the techniques described above. Some surgeons also place
338
R. C. Kim et al.
a stent or small pediatric feeding tube through the anastomosis as a guide. Leaving an internal stent has fallen out of favor as it has not been shown to decrease pancre­atic stula rates, in fact may increase the risk for them, and postoperative stent complications and migration may occur [23]. However, externalized pancreatic duct stents and omission of prophylactic octreotide have been shown to be effective risk mitigation strategies for situations at high risk for the development of clinically relevant postoperative pancreatic stulas [24]. Regardless of which method is used, attention should be focused on maintaining good technique and the tenets of any safe anastomosis, including but not limited to careful tissue handling, tension-free layout, adequate perfusion, and no occlusion or distal obstruction.
Hepaticojejunostomy
There are also multiple approaches to the hepaticojejunostomy, although not as numerous as for the pancreaticojejunostomy. The end-to-side anastomosis is made distally along the biliopancreatic limb, is typically single-layered, full thickness, and may be performed in a continuous, interrupted, or mixed fashion. Leaving enough length between the two anastomoses may be useful, particularly in benign cases, in the event future revision to either anastomosis is needed. Theoretically, this may also reduce the risk of activation of the pancreatic enzymes by bile if there is an anastomotic leak.
The “corner” stitches are rst placed, at the 3 o’clock and 9 o’clock positions. If done in an interrupted fashion, placing the anterior sutures in the bile duct rst can assist with holding the duct open while suturing the posterior wall. Once the anas­tomosis is completed, the jejunum is tacked to the mesocolon to prevent internal herniation as well as to maintain a tension-free layout to the anastomoses.
Gastro- or Duodeno-Jejunostomy
Whether a classic or pylorus-preserving Whipple is to be performed should depend on the extent of the tumor. There has been no consistent data showing any difference in oncologic outcomes with either procedure, and the rate of delayed gastric empty­ing and other functional complications are similar in both approaches [25, 26].
In the case of a classic Whipple, a gastrojejunostomy is created in a side-to-side or end-to-side fashion. If a pylorus-preserving Whipple is performed, a duodenoje­junostomy is created either in an isoperistaltic side-to-side or end-to-side fashion. This is completed in a standard, handsewn, two-layered intestinal reconstruction approach, with a continuous inner mucosal layer and a seromuscular, interrupted outer layer. The anastomosis is made approximately 30–50cm downstream of the hepaticojejunostomy. A <30-degree vertical efferent limb ow angle and a gastroje­junal anastomosis are associated with lower delayed gastric emptying rates [27]. The gastro/duodenojejunal anastomosis completes the reconstruction portion of the surgery.
19 Open Whipple
339
Final Steps
The abdomen is irrigated and inspected for hemostasis. The omentum and/or falci­form ligament can be placed between the GDA stump and the pancreatic and biliary anastomoses to help mitigate complications in case of an anastomotic leak.
There has historically been mixed data in the literature regarding routine intra­peritoneal drainage after Whipple, with some studies failing to show a clear benet [28, 29]. However, more recently, a multi-institutional randomized controlled trial demonstrated that intraperitoneal drainage improved both the frequency and sever­ity of postoperative complications. The study itself was also halted early as interval analysis showed a higher risk for mortality in patients without intraperitoneal drains (12% vs 3%) [30]. Routine nasogastric decompression has also not been shown to decrease risk of postoperative complications such as aspiration or anastomotic leak, and thus is not strictly necessary [31]. Intraoperative percutaneous feeding tube placement has also been associated with increased postoperative morbidity in retro­spective studies [32, 33]. Ultimately, the decision to place of any of these adjuncts at the end of the surgery should be dependent on patient-specic factors and sur­geon’s preference.

References

1. Schnelldorfer T, Sarr MG. Alessandro Codivilla and the rst pancreatoduodenectomy. Arch Surg. 2009;144(12):1179–84.
2. Halsted WS.Contributions to the surgery of the bile passages, especially of the common bile­duct. Boston Med Surg J. 1899;141(26):645–54.
3. Whipple AO, Parsons WB, Mullins CR.Treatment of carcinoma of the ampulla of Vater. Ann Surg. 1935;102(4):763–79.
4. Whipple AO. Observations on radical surgery for lesions of the pancreas. Surg Gynecol Obstet. 1946;82:623–31.
5. Hunt VC.Surgical management of carcinoma of the ampulla of vater and of the periampullary portion of the duodenum. Ann Surg. 1941;114(4):570–602.
6. Are C, Dhir M, Ravipati L.History of pancreaticoduodenectomy: early misconceptions, initial milestones and the pioneers. HPB (Oxford). 2011;13(6):377–84.
7. Traverso LW, Longmire WP Jr. Preservation of the pylorus in pancreaticoduodenectomy. Surg Gynecol Obstet. 1978;146(6):959–62.
8. Watson K. Carcinoma of ampulla of Vater successful radical resection. Br J Surg. 1944;31(124):368–73.
9. Grifn JF, Poruk KE, Wolfgang CL.Pancreatic cancer surgery: past, present, and future. Chin J Cancer Res. 2015;27(4):332–48.
10. Gordon TA, Bowman HM, Tielsch JM, Bass EB, Burleyson GP, Cameron JL.Statewide regionalization of pancreaticoduodenectomy and its effect on in-hospital mortality. Ann Surg. 1998;228(1):71–8.
11. Winter JM, Cameron JL, Campbell KA, etal. 1423 pancreaticoduodenectomies for pancre­atic cancer: a single-institution experience. J Gastrointest Surg. 2006;10(9):1199–210; discus­sion 210–1.
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12. Hunt GC, Faigel DO.Assessment of EUS for diagnosing, staging, and determining resectabil­ity of pancreatic cancer: a review. Gastrointest Endosc. 2002;55(2):232–7.
13. Varadarajulu S, Eloubeidi MA.The role of endoscopic ultrasonography in the evaluation of pancreatico-biliary cancer. Surg Clin North Am. 2010;90(2):251–63.
14. Key NS, Khorana AA, Kuderer NM, et al. Venous thromboembolism prophylaxis and treatment in patients with cancer: ASCO clinical practice guideline update. J Clin Oncol. 2020;38(5):496–520.
15. Clancy TE, Baker EH, Maegawa FA, Raoof M, Winslow E, House MG.AHPBA guidelines for managing VTE prophylaxis and anticoagulation for pancreatic surgery. HPB (Oxford). 2022;24(5):575–85.
16. Logarajah SI, Jackson T, Darwish M, etal. Whipple pancreatoduodenectomy: a technical illus­tration. Surg Open Sci. 2022;7:62–7.
17. Staśkiewicz G, Torres K, Denisow M, Torres A, Czekajska-Chehab E, Drop A.Clinically rel­evant anatomical parameters of the replaced right hepatic artery (RRHA). Surg Radiol Anat. 2015;37(10):1225–31.
18. Sayyed R, Baig M, Khan A, Niazi IK, Syed AA, Hanif F.Hepatic arterial system anoma­lies encountered during pancreaticoduodenectomy - our experience. J Pak Med Assoc. 2020;70(2):337–40.
19. Dandekar U, Dandekar K, Chavan S.Right hepatic artery: a cadaver investigation and its clini­cal signicance. Anat Res Int. 2015;2015:412595.
20. Warren KW, Cattell RB. Basic techniques in pancreatic surgery. Surg Clin North Am. 1956;36(3):707–24.
21. Maithel SK, Allen PJ.Techniques of pancreatic resection: pancreaticoduodenectomy, distal pancreatectomy, segmental pancreatectomy, total pancreatectomy, and transduodenal resec­tion of the papilla of Vater. In: Jarnagin WR, Allen PJ, Chapman WC, etal., editors. Blumgart’s surgery of the liver, biliary tract and pancreas. 6th ed. Elsevier; 2017. p.1007–23.
22. Berger AC, Howard TJ, Kennedy EP, et al. Does type of pancreaticojejunostomy after pan­creaticoduodenectomy decrease rate of pancreatic stula? A randomized, prospective, dual­institution trial. J Am Coll Surg. 2009;208(5):738–47; discussion 47–9.
23. Winter JM, Cameron JL, Campbell KA, etal. Does pancreatic duct stenting decrease the rate of pancreatic stula following pancreaticoduodenectomy? Results of a prospective random­ized trial. J Gastrointest Surg. 2006;10(9):1280–90; discussion 90.
24. Ecker BL, McMillan MT, Asbun HJ, etal. Characterization and optimal management of high­risk pancreatic anastomoses during pancreatoduodenectomy. Ann Surg. 2018;267(4):608–16.
25. Horstmann O, Markus PM, Ghadimi MB, Becker H.Pylorus preservation has no impact on delayed gastric emptying after pancreatic head resection. Pancreas. 2004;28(1):69–74.
26. Seiler CA, Wagner M, Sadowski C, Kulli C, Büchler MW.Randomized prospective trial of pylorus-preserving vs. classic duodenopancreatectomy (Whipple procedure): initial clinical results. J Gastrointest Surg. 2000;4(5):443–52.
27. Jung JP, Zenati MS, Dhir M, etal. Use of video review to investigate technical factors that may be associated with delayed gastric emptying after pancreaticoduodenectomy. JAMA Surg. 2018;153(10):918–27.
28. Conlon KC, Labow D, Leung D, etal. Prospective randomized clinical trial of the value of intraperitoneal drainage after pancreatic resection. Ann Surg. 2001;234(4):487–93; discus­sion 493–4.
29. McMillan MT, Fisher WE, Van Buren G 2nd, et al. The value of drains as a stula mitiga­tion strategy for pancreatoduodenectomy: something for everyone? Results of a randomized prospective multi-institutional study. J Gastrointest Surg. 2015;19(1):21–30; discussion 30–1.
30. Van Buren G 2nd, Bloomston M, Hughes SJ, et al. A randomized prospective multicenter trial of pancreaticoduodenectomy with and without routine intraperitoneal drainage. Ann Surg. 2014;259(4):605–12.
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19 Open Whipple
31. Cheatham ML, Chapman WC, Key SP, Sawyers JL.A meta-analysis of selective versus rou­tine nasogastric decompression after elective laparotomy. Ann Surg. 1995;221(5):469–76; dis­cussion 476–8.
32. Sou M, Al-Temimi M, Nguyen TK, et al. Friend or foe? Feeding tube placement at the time of pancreatoduodenectomy: propensity score case-matched analysis. Surg Endosc. 2022;36(5):2994–3000.
33. Nussbaum DP, Zani S, Penne K, etal. Feeding jejunostomy tube placement in patients undergo­ing pancreaticoduodenectomy: an ongoing dilemma. J Gastrointest Surg. 2014;18(10):1752–9.
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Chapter 20
Laparoscopic Pancreatoduodenectomy
NúriaLluís, DomenechAsbun, andHoracioJ.Asbun
Beginnings ofLaparoscopic Pancreatoduodenectomy
On average, 17years elapsed from conception to application of a clinical novelty [1]. Despite the onset of laparoscopic surgery in the mid-1980s, it would be several decades later before laparoscopic pancreatoduodenectomy (LPD) became an accepted operation by pancreatic surgeons. Its implementation required adequate technological advancements and the courage of pioneering surgeons, whose vision and commitment made LPD a feasible and safe technique (Fig. 20.1). LPD has evolved over the last two decades, as detailed in the historic pearls below.
In 1994, Gagner etal. [2] published the rst description of LPD in a patient with chronic pancreatitis. However, early experiences with LPD were discouraging due to the lack of proper minimally invasive equipment and surgical expertise that were still being developed at the time. In 2007, Palanivelu etal. [3] published the rst series, including 42 patients with mainly malignant pancreatic diseases, and reported 5-year survival rates ranging from 19.1% to 50%, depending on tumor type and lymph node positivity. In 2010, Kendrick etal. [4] reported 62 patients with differ­ent types of malignant and benign diseases and described a median length of hospi­tal stay of 7days, with 42% of postoperative morbidity events, and one death. In 2012, Asbun etal. [5] compared the outcomes of 215 patients who underwent an open pancreatoduodenectomy (OPD) and 53 patients who underwent a laparoscopic approach, and reported that LPD was feasible, without differences in overall or pancreas-specic complications, and a higher lymph node retrieval rate when com­pared with the open approach.
N. Lluís · D. Asbun · H. J. Asbun (*) Division of Hepatobiliary and Pancreas Surgery, Miami Cancer Institute, Miami, FL, USA e-mail: horacioa@baptisthealth.net; domenech.asbun@baptisthealth.net
Switzerland AG 2025 E. P. Ceppa et al. (eds.), The SAGES Manual of Evolving Techniques in Pancreatic Surgery, https://doi.org/10.1007/978-3-031-78409-5_20
343© The Author(s), under exclusive license to Springer Nature
344
Fig. 20.1 Pioneer surgeons whose vision and commitment made laparoscopic pancreatoduode­nectomy a feasible and safe technique
N. Lluís et al.
Comparing Outcomes Between Laparoscopic andOpen Approach
Further research has delved into the comparison between the laparoscopic and open approaches to pancreatoduodenectomy. Between 2017 and 2022, 19 studies used propensity score matching analysis to compare outcomes of the two approaches (Table 20.1). The most frequent short-term nding was that the laparoscopic approach resulted in shorter hospital stays. Moreover, some studies noted a decrease in readmission rates, delayed gastric emptying, pain, and use of painkillers. However, there was a mixed result on pancreatic stula rate, with one study showing a lower rate and another showing an increased rate. In most studies, postoperative morbidity and mortality were similar for both approaches. In terms of oncological outcomes, several studies reported that the laparoscopic approach achieved a com­parable negative resection margin rate, with more lymph nodes harvested in one study and fewer in another. Another study found similar tumor progression-free survival, while several studies reported similar overall survival rates. Overall, these ndings suggested that LPD achieves non-inferior short- and long-term outcomes when compared to the open procedure.
The ndings were further consolidated through subsequent analyses of more comprehensive data. A meta-analysis of eight studies revealed that there was no signicant difference in the 5-year overall survival rate between both surgical approaches. Furthermore, laparoscopic surgery was found to have a higher rate of R0 resection and harvested lymph nodes when compared to the open approach [25]. In addition, for elderly patients, another meta-analysis reported no signicant dif­ferences in blood loss, postoperative pancreatic stula, and length of hospital stay [26].
Specic benchmark outcomes were provided for LPD in an international multi­center study published in 2019 [27]. The outcomes of low-risk patients undergoing LPD in three centers with expertise in minimally invasive surgery were compared to the benchmark values obtained in low-risk patients undergoing open pancreatoduo­denectomy in an international multicenter study. Operative time (benchmark <=7.5 h)
20 Laparoscopic Pancreatoduodenectomy
Table 20.1 Retrospective studies using propensity score matching analysis to compare outcomes after laparoscopic versus open pancreatoduodenectomy
Author Country Year Design
Conrad [6] US 2017 Single-center Long-term,
Kutlu [7] US 2018 Multicenter,
NCDB
Lee [8] Korea 2018 Single-center Short-term,
Nassour [9] US 2018 Multicenter,
ACS-NSQIP
Park [10] Korea 2018 Single-center Short-term,
Shin [11] Korea 2019 Single-center Short- and
Primary outcome
oncologic, ADC
Short-term according to hospital volume of PDs
benign and borderline disease
Short-term 334 lap,
acute kidney injury
long-term, elderly (70years)
Baseline, nOutcomes after
40 lap, 25 open
430 lap, 4309 open
31 lap, 76 open
4150 open
177 lap, 632 open
56 lap, 270 open
PSM, lap vs open
• Similar overall and recurrence­free survival
• The benets of
the lap vs open approach (shorter LOHS, fewer readmissions) were only achieved in hospitals with a high volume of cases (25 PDs per year)
• Less
postoperative pain
• Shorter LOHS
• Similar
morbidity and mortality
• Decreased rate
of prolonged LOHS
• Increased
readmission rate
• Shorter LOHS
• Similar
incidence of postoperative acute kidney injury
• Lower
pancreatic stula rate
• Less use of
painkillers
• Similar 3-year
overall survival and disease-free survival
345
(continued)