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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_734_Библиотеки_им_академика_М_И_Перельмана.pdf
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346
Table 20.1 (continued)
Author Country Year Design
Zhou [12] China 2019 Two centers Short- and
El Nakeeb [13]
Han [14] Korea 2020 Single-center Short-term 104 lap,
Klompmaker [15]
Yoo [16] Korea 2020 Single-center Short- and
Chen [17] China 2021 Single-center Short- and
Cheng [18] China 2021 Single-center,
Egypt 2020 Single-center Short- and
Europe 2020 Multicenter,
14 centers, robotic cases were also included
only lap cases
Primary outcome
long-term, ADC
long-term
Short-term 412 lap,
long-term, ampulla of Vater carcinoma
long-term, ADC
Short- and long-term, liver cirrhosis
Baseline, nOutcomes after
79 lap, 230 open
37 lap, 74 open
113 open
729 open
76 lap, 283 open
128 lap, 288 open
28 cirrhotic, 325 control
N. Lluís et al.
PSM, lap vs open
• Lower delayed
gastric emptying rate
• Similar rates of
major complications
• Similar overall
survival
• Shorter LOHS
• Similar
oncologic outcomes and survival
• Similar
morbidity and mortality
• Similar negative
resection margin rate
• Similar LOHS,
major morbidity and mortality
• Few minimally
invasive procedures per center
• Less use of
painkillers
• Fewer grade≥II
complications
• Shorter LOHS
• Similar overall
and recurrence­free survival
• Similar early
oncologic and postoperative outcomes
• Similar
recurrence rate and overall survival
• Cirrhotic
patients had more postoperative complications
(continued)
20 Laparoscopic Pancreatoduodenectomy
Table 20.1 (continued)
Author Country Year Design
Dang [19] China 2021 Single-center Short- and
Ding [20] China 2021 Single-center Short-term 114 lap,
Katsuki [21] Japan 2021 Multicenter Short-term 96 lap,
Mazzola [22] Italy 2021 Single-center Short-term 52 lap,
Kim [23] Korea 2022 Two centers Short- and
Zhang [24] China 2022 Single-center Long-term,
ADC adenocarcinoma; NCDB National Cancer Data Base; LOHS length of hospital stays; ACS­NSQIP American College of Surgeons-National Surgical Quality Improvement Program
Primary outcome
long-term, non-pancreatic periampullary ADC
long-term, distal cholangio­carcinoma
ADC
Baseline, nOutcomes after
172 lap, 316 open
140 open
2004 open
125 open
91 lap, 335 open
64 lap, 80 open
PSM, lap vs open
• Less LOHS
• Less 30-day and
90-day mortality rate
• Similar
long-term survival
• More harvested
lymph nodes
• Pancreatic stula
was more common
• Similar LOHS
and complications
• Higher total
hospitalization costs
• Shorter LOHS
• Similar
morbidity and postoperative mortality
• Shorter LOHS
• Less harvested
lymph nodes
• Similar R0
resection rate
• Similar
long-term survival
• Similar overall
survival
• Similar adjuvant
therapy utilization
347
and readmission rates (benchmark <=21%) exceeded reference values in two of the three centers, whereas other indicators, such as postoperative pancreatic stula rates, ranged between 0% and 23% (benchmark <=19%). The remaining indicators were within the reference values. More recently, the Miami International Evidence­based Guidelines on Minimally Invasive Pancreas Resection reiterated the need of high-quality prospective data to continuously assess the outcomes of LPD (Table20.2) [28].
348
Table 20.2 Recommendations of the Miami international evidence-based guidelines on minimally invasive pancreas resection [28] on the use of minimally invasive (MIPD) vs open pancreatoduodenectomy (OPD)
Recommendation Grade
• There is insufcient data to recommend MIPD over OPD.Centers performing MIPD should be including all their MIPD outcomes data into national and international registries, and prospectively maintained pancreas databases
• Both MIPD and OPD are valid approaches for selected patients with adenocarcinoma
• No comparative data regarding MIPD vs OPD after neoadjuvant therapy exists and further investigation is warranted
• Limited comparative data regarding vascular resection in MIPD vs OPD exist and further investigation is warranted. MIPD with vascular resection should only be performed by highly experienced surgeons and in high-volume centers
2A weak recommendation, high quality of evidence; 2B weak recommendation, moderate quality of evidence; 1C strong recommendation, weak quality of evidence
N. Lluís et al.
2A
2B
Expert opinion
1C

Randomized Controlled Trials

To date, four randomized controlled trials comparing short-term outcomes of LPD versus OPD have been published (Table20.3). Two single-center trials (India [29] and Spain [30]) and two multicenter trials (Netherlands [31] and China [32]) have been performed. These studies focused on length of hospital stay, morbidity, mortal­ity, and time to functional recovery. The Dutch series was terminated early due to concerns regarding complication-related mortality [31]. In the design of this study, participating surgeons were required to have done/participated in only 20 LPD which was since conrmed not to be a sufcient experience to overcome the learn­ing curve and may have played a role in the associated complication-related mortal­ity for the laparoscopic arm. Length of hospital stay was signicantly shorter in the laparoscopic arm in the remaining three trials that completed [29, 30, 32] although this was a marginal benet in one of them [32]. Only one trial [30] showed a reduc­tion in postoperative complications with the laparoscopic approach. Based on these results, the laparoscopic approach has established itself as a solid alternative, in experienced hands, to the open approach in terms of short-term postoperative out­comes. Future randomized controlled trials should determine with a higher level of evidence the long-term and oncologic outcomes of LPD.

Surgical Technique

A detailed explanation of the surgical technique developed and used for over 20 years during LPD is described. The authors preferentially perform pylorus­preserving LPD although the technique can be adjusted in cases where a distal gas­trectomy is performed. Surgical instruments and materials commonly used for this procedure are listed in Table 20.4. Advanced laparoscopic skills are required to perform LPD. However, with appropriate commitment and dedication, a surgeon
20 Laparoscopic Pancreatoduodenectomy
Table 20.3 Published randomized controlled trials comparing short-term outcomes after laparoscopic versus open pancreatoduodenectomy
Study Country Year Design
PLOT [29] India 2017 Single-center,
PADULAP [30]
LEOPARD-2 [31]
MITG-P­CPAM [32]
LOHS, length of hospital stays
Spain 2018 Single-center,
Netherlands 2019 Multicenter,
China 2021 Multicenter,
open-label
open-label
patient­blinded, phases 2/3
open-label
Primary outcome n
LOHS 32
LOHS 34
Safety (phase 2), functional recovery (phase 3)
LOHS 297
Postoperative outcomes
• LOHS, median (range): lap 7 (5–52)
lap vs
vs open 13 (6–30),
32
p=0.001
open
• Similar overall complications and mortality
• LOHS, median (range): lap 13.5
lap vs
(5–54) vs open 17
32
(6–150), p=0.024
open
• Clavien-Dindo grade complications 3: lap 5 vs open 11, p=0.04
• Similar oncological standards
• Complication-
50
related mortality: lap
lap vs
10% vs open 2%,
49
p=0.2
open
• Early terminated
• LOHS, median (95% CI): lap 15
lap vs
(14–16) vs open 16
297
(15–17), p=0.02
open
• Similar short-term morbidity and mortality
349
can reach the level of expertise needed to perform a safe LPD procedure. Furthermore, several areas of the world do not have access readily available to the robotic platform due to the signicant cost involved. In these areas, surgeons have chosen not to be marginalized by the hypothetical idea that one must be an absolute maverick to reach the level of skill necessary. It is in these countries where LPD is being done safely as it is performed in the hands of younger surgeons that have com­mitted to learn the technique as the junior authors in this chapter. Additionally, the authors feel that the magnication and better access to difcult areas offered by the laparoscope ensure a meticulous resection of lesions located in the head of the pan­creas and more precise anastomoses than in the open technique, when a small pan­creatic duct is present.
1. Patient monitoring devices Intravenous access is gained with two large-bore venous catheters and, when needed because of patient comorbidities, a central venous line. An intra-arterial
350
Table 20.4 Surgical instruments and materials commonly used for laparoscopic pancreatoduodenectomy
• Laparoscopic 5mm, 0°, camera mounted on an optical insufating port
• Laparoscopic 10mm, 45°, 4K camera with ICG capability (resection phase)
• Laparoscopic 10mm 3D camera (reconstruction phase)
• Smoke evacuator
• Insufators (x2)
• Laparoscopic liver retractor mounted on an iron intern retractor holder
• Energy devices: Ultrasonic shears, advanced bipolar, and bipolar
• Regular laparoscopic graspers
• Laparoscopic large bowel clamp
• Maryland curved dissector (3mm and 5mm)
• Laparoscopic right-angle dissector (3mm and 5mm)
• Laparoscopic staplers (vascular and enteric loads)
• Finger retractor
• Laparoscopic curved bulldog and bulldog applicator (10mm)
• Penrose drain (end cut in long, thin diagonal)
• Endoscopic Kittner
• Vessel loop
• Pediatric 5Fr pancreatic stent
• Needle driver, 3mm, mounted in 5mm shaft
• Sutures: Spiral barbed 3-0 and 4-0; polyglactin 5-0 with a TF (ophthalmologic) needle, and other sutures according to surgeon’s preference
• Small, medium, and large-sized clips
• Indocyanine green (ICG)
• Laparoscopic ultrasound with Doppler capability
• Blake 15Fr drain (x2)
• Laparoscopic 15cm retrieval bag
N. Lluís et al.
catheter, a urinary catheter, and a pulse oximeter are used. General endotracheal anesthesia is induced, and the stomach is decompressed with an orogastric tube. No nasogastric tube is used postoperatively. Pneumatic compression stockings are applied.
2. Patient positioning The patient is placed in a supine, split-leg position, and carefully secured to the operative table. Proper padding of pressure points is ensured. Table tilting throughout the procedure and the use of gravity will be extremely helpful to achieve proper exposure of the areas of interest and will avoid organ injury due to unnecessary grasping. The proper height of the operative table, position of the screen, as well as the angle of surgeon’s shoulders, elbows, and wrists are essen­tial to ensure ergonomics are maintained throughout this long procedure.
3. Position of surgical team members The surgeon stands between the patient’s legs for most of the procedure, except during the biliary reconstruction, when the surgeon moves to the right side of the patient. The rst assistant stands on the left side of the patient, and the second
20 Laparoscopic Pancreatoduodenectomy
assistant on the right. The scrub technician is in between the surgeon and the rst assistant.
4. Port placement A 5mm, 0°, optical insufating port, placed in the subxiphoid area and to the left of midline, or in the mid left abdomen depending on body habitus, is used to establish pneumoperitoneum. Its small opening at the tip of the trocar allows for insufation without requiring the insertion of the entire trocar, avoiding organ injury in case adhesions are present. The layers of the abdominal wall (skin, subcutaneous fat, anterior fascia, rectus abdominis muscle, posterior fascia, and pre-peritoneum) are visually evaluated as CO2 is insufated while advancing the trocar. Standard intra-abdominal pressure is initially applied, although it should be modied according to the patient’s tolerance of pneumoperitoneum. A total of two 5 mm ports and four 12 mm ports are placed in a semicircular pattern (Fig.20.2). The trocars are placed under direct visualization, initially keeping the laparoscope in port 6. Ports 1 and 6 are 5mm; the rest are 12mm. Usually ports 3, 4, and 5 are about 8cm apart from each other and at about 16cm from the xiphoid for all body habitus types. Port 1 should be placed in the subcostal region, high and lateral within the abdomen which will ease biliary reconstruc­tion. The laparoscope is switched to a 10mm, 45°, inserted through port 4. The hepatic surface and peritoneum are explored to rule out the presence of meta­static deposits.
351
Fig. 20.2 Port placement (Figure reproduced with permission of Horacio J Asbun)
352
N. Lluís et al.
Resection Phase
The procedure starts with two maneuvers that will improve eld exposure. First, the ligamentum teres is xed to the anterior abdominal wall using a nylon suture on a Keith needle passed through the abdominal wall to encircle the structure. Second, a table-mounted liver retractor is placed though port 1 and the liver retracted cepha­lad/anteriorly.
5. Omental division
The patient is now placed in a reverse Trendelenburg position. The greater omentum is longitudinally split using ultrasonic shears, starting at the inferior edge left of midline and directed toward the middle of hepatic segment III.The plane of transection should be chosen bearing in mind an estimate of an antici­pated location of the eventual antecolic duodenojejunostomy, which is usually
This maneuver will also facilitate exposure of the area of the ligament of Treitz. Any adhesions here should be taken down now to facilitate jejunal mobilization at a later stage.
6. Lesser sac entry
The lesser sac is entered through the gastrocolic ligament along the greater curve, preserving the gastroepiploic arcade. Dissection proceeds to the right, extending toward the area of the gallbladder. The rst assistant retracts the stomach superiorly with a swiping maneuver using a grasper in port 1. The dis­section is extended up to the area of the trunk of Henle. Omental adhesions to the gallbladder or liver are taken down.
7. Colonic hepatic exure mobilization
The proximal transverse colon, hepatic exure, and part of the right colon are mobilized from the retroperitoneum and retracted medially. The dissection is carried through an avascular plane between the right mesocolon and retroperi­toneal fat anterior to Gerota’s fascia. The duodenum and head of the pancreas will then be exposed, which will later on facilitate the performance of the Kocher maneuver.
8. Tributaries of the trunk of Henle division
The tributaries of the trunk of Henle are exposed better once the right colon has
identied, the tributaries are isolated using a nger-type retractor which is passed very close to the duodenal wall (Fig.20.3). These structures are encir­cled en bloc with the surrounding adipose tissue, ligated, and divided using a vascular stapler inserted through port 5. After this division, the near-complete mobilized colon should now fall further because of gravity afforded by the reverse Trendelenburg position and slight left-tilt of the table, giving adequate exposure to the pylorus and duodenum.
9. Duodenum division
Dissection continues to free the rst portion of the duodenum. Small vessels emanating from the head of the pancreas to the rst portion of the duodenum
20 Laparoscopic Pancreatoduodenectomy
Fig. 20.3 Tributaries of the trunk of Henle are encircled using a nger-type retractor passed very close to the duodenal wall (Figure reproduced with permission of Horacio J Asbun)
Fig. 20.4 Numerous small vessels emanating from the head of the pancreas to the rst portion of the duodenum must be ligated and divided. The use of ultrasonic shears applied in small bites under direct visualization can be helpful to avoid any major vascular injury (Figure reproduced with permission of Horacio J Asbun)
353
may be encountered and must be ligated and divided (Fig.20.4). Important vascular structures, such as the common hepatic artery or gastroduodenal artery (GDA), might be encountered in this area as one proceeds posterior to the pylo­rus, and they should be avoided. The use of ultrasonic shears applied in small bites under direct visualization can be helpful to avoid any vascular injury. The pylorus should be clearly identied. The right gastric artery may be identied and can be isolated and divided before or after division of the duodenum. Care has been taken to preserve the gastroepiploic arcade avoiding entirely devascu­larizing the pylorus. A nger-type retractor is used to create a tunnel that encir­cles the rst portion of the duodenum. The orogastric tube is partially removed. The duodenum is transversely transected, 2–3cm distal to the pylorus, using a laparoscopic 60mm stapler with a blue load, inserted through port 5 (Fig.20.5). An oblique transection of the bowel should be avoided since it would make the duodenojejunostomy more technically challenging.
354
Fig. 20.5 Division of the rst portion of the duodenum. The authors preferentially perform pylorus- preserving LPD, although the technique can be adjusted in cases where a distal gastrec­tomy is performed. The stapler is placed under direct visualization in a manner to optimize the duodenal stump for the future gastrointestinal anastomosis (Figure reproduced with permission of Horacio J Asbun)
N. Lluís et al.
10. Pylorus and antrum mobilization
is progressed through the pars accida toward the lesser curvature of the stom­ach. If still intact, the right gastric artery is ligated and divided. Dissection stops before cutting the hepatic branch of the vagus nerve or nearing the left gastric artery. The pylorus and antrum are now mobilized and are then folded anteri­orly and superiorly into the left upper quadrant for the rest of the procedure. This maneuver gives wide exposure of the duodenum, pancreas, and retroperitoneum.
11. Gastroduodenal artery division
Attention is now turned to the hepatic hilar structures. The peritoneum over the hepatoduodenal ligament is incised. Dissection of the hepatic artery lymph node (station 8a) facilitates exposure of the common hepatic artery (Fig.20.6). Frozen examination of this lymph node is recommended for staging purposes. In turn, identication of the common hepatic artery serves as a landmark for the GDA takeoff. Intraoperative ultrasound can aid identication of the GDA.If there is any uncertainty a bulldog clamp can be placed across the presumed GDA and Doppler ow assessed in the proper hepatic artery to assure the hepatic artery was not confused for the GDA.The GDA is isolated and divided close to its origin using a vascular stapler. Clips or sutures can be used instead as well. Leaving a 5mm stump will facilitate endovascular embolization in case of post-pancreatectomy hemorrhage due to pseudoaneurysm formation in this area. Other small accessory branches to the pancreas in this area should be identied and clipped when present, since they are potential sources of pseudoaneurysms.
20 Laparoscopic Pancreatoduodenectomy
Fig. 20.6 Hepatic artery lymph node dissection facilitates exposure of the common hepatic artery, which serves as a landmark for the GDA takeoff (Figure reproduced with permission of Horacio J Asbun)
Fig. 20.7 Common bile duct division. A curved bulldog is inserted proximally in the common bile duct, previously encircled by a nger-type retractor (Figure reproduced with permission of Horacio J Asbun)
355
12. Common bile duct division
Division of the GDA acts as a gateway to the structures of the porta hepatis, and the portal vein is at times visible immediately deep to the GDA.The common bile duct (CBD) is the next structure to be identied. A critical view of safety technique is applied to identify and divide the cystic duct and cystic artery. Completion of the cholecystectomy can be performed at a later stage and after specimen extraction while margins are being evaluated. The cystic duct is fol­lowed down to its insertion at the CBD as needed to help delineate the CBD.It is also found anterior and lateral to the portal vein, which may already have been identied. A nger-type retractor is used to safely and individually encir­cle the CBD (Fig.20.7).
Extra attention must be paid to avoid injury to surrounding hepatoduodenal
structures located posteriorly (portal vein) or medially (proper and/or right