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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_832_Библиотеки_им_академика_М_И_Перельмана

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Ampullectomy
https://t.me/med1917
GabrielaOchoa andIsmaelDominguez-Rosado
1 Introduction
The ampulla of Vater (or Hepatopancreatic ampulla) corresponds to an anatomic and functional region that comprises the junction of the common bile duct and pan­creatic duct, surrounded by the sphincteric system of Oddi, traversing the duodenal wall and terminating at the greater duodenal papilla covered by the duodenal mucosa [1].
Because of these anatomic relationships, surgical resection is challenging, and local resection is limited to early-stage lesions. Malignant and more extensive tumors generally require a pancreatoduodenectomy for resection, a surgery with high-risk and overall morbidity of around 40% [2].
Surgical ampullectomy (SA) was rst described by Halsted in 1899 as a treat­ment for ampullary cancer. Because of the bad oncologic results, it was abandoned for more extensive resection and has now been adopted for benign lesions of the ampulla. In the search for a less morbid approach, the endoscopic papillectomy (EP) was described in 1983 and is now accepted for managing lesions conned to the mucosa and submucosa [3]. Laparoscopic and robotic approaches have been developed due to the increase in the expertise of the minimally invasive technique in HPB surgery [4].
This chapter will describe the surgical technique of ampullectomy, its principal indications, and approaches.
G. Ochoa (*) Hospital Base Valdivia, Universidad Austral de Chile, Valdivia, Chile
I. Dominguez-Rosado Instituto Nacional de Ciencias Medicas y Nutrición Salvador Zubirán, Mexico City, Mexico
Switzerland AG 2024 H. Chen, B. Lindeman (eds.), Illustrative Handbook of General Surgery,
https://doi.org/10.1007/978-3-031-63878-7_42
505© The Author(s), under exclusive license to Springer Nature
506
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2 Indications
No evidence-based consensus guidelines have been produced regarding suitable indications for SA [5].
The generally accepted indications for SA include cases of adenomas and carci­noma in situ. Adenomas are the most frequent indication for SA and generally will have demonstrated bile or pancreatic duct dilation >20mm and EP was either not technically possible or had previously failed with recurrence or positive margins. The SA is also accepted for some cases of sphincterotomy-associated biliary stric­ture [6, 7].
3 Preoperative Study
The purpose of preoperative evaluation of ampullary tumors is to determine malig­nancy, assess resectability, and establish the stage for possible cancers. The study could include endoscopy with a histologic sampling of the lesion and, CT or MRI to determine the extension and the relation with the neighbor structures. However, the most critical method of study in the actual time is the EUS due to its capacity to determine the extension in the wall of the ampulla, the presence of pathologic lymph nodes, and the possibility of realizing a guided biopsy [7].
4 Description oftheSurgery Technique [7]
1. Position of the Patient and Exposure of the Doudenum.
Regarding the kind of surgical approach, open or laparoscopic, the abdomen is accessed either by laparotomy using a right subcostal or upper midline inci­sion or by minimal access methods.
The operation starts with abdominal exploration to evaluate for distant dis­ease and determine the local extension of the lesion.
Next, the hepatic exure of the colon is mobilized and a Kocher maneuver is performed to expose the second portion of the duodenum for access to the ampulla. For better exposure, a partial Catell-Brasch maneuver could be added (Fig.1).
2. Surgical approach of the Ampulla of Vater. The position of the ampulla is determined by palpation of the tumor or preop-
eratively placed stent. If the ampulla’s position cannot be palpated then a chole­cystectomy can be performed and the cystic duct cannulated with a balloon
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a
Fig. 1 Position of the Patient and Exposition of the D2. (a). Subcostal incision. (b) Kocher maneuver. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed., Masaru Miyazaki, Yuman Fong, Anil K.Agarwal, Raja Kalayarasan. Standard Radical Cholecystectomy for T1 and T2 Gallbladder Cancer. 611–622. Copyright (2016), with permission from Springer) [8]
b
catheter. This is then guided into the intestinal lumen, the balloon inated, and the catheter withdrawn until it is apposed to the ampulla. Palpation of the inated balloon will now identify the location of the ampulla.
Stay sutures are placed in the anterior duodenal wall opposite the ampulla and
a longitudinal duodenotomy is created to expose the papilla in his intraluminal location (Fig.2).
3. Resection of the Lesion. Once the ampullary lesion has been exposed, stay sutures can be placed sur-
rounding the lesion for traction. The inltration of the submucosa with saline or epinephrine solution is recommended to elevate the lesion off the deepest layers in the duodenum wall. The resection could be done with scissors or electrocoagulation.
Following resection, the transected duct orices must be identied. The typi-
cally larger and superior orice corresponds to the bile duct and the smaller and inferior corresponds to the pancreatic duct. The resection of these ducts must be done sparingly to facilitate their reimplantation (Fig.3).
4. Reimplantation of the bile and pancreatic duct.
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Fig. 2 (a) Longitudinal duodenectomy. (b) Identication of the papilla by the biliary stent and the inltration of the submucosa to elevate the lesion. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed. Michael L.Kendrick, Michael B.Farnell. Transduodenal Resection of Periampullary Villous Neoplasms. 905–911. Copyright (2016), with permission from Springer) [9]
a
b
After resectioning the lesion, the bile, and pancreatic duct will be deep in the
surgical bed. The ducts will then be reimplanted into the duodenum wall with absorbable interrupted sutures (typically 4-0 or 5-0). The bile duct could be posi­tioned superior to the pancreatic duct. Special care must be taken not to narrow their lumens (Fig.4).
5. Closure of the duodenum and nal considerations. The patency of the ducts could be conrmed by direct visualization of secre-
tions and/or probing with dilator devices prior to closure.
The longitudinal duodenotomy should be closed transversally to avoid steno-
sis and may be done in one or two layers with absorbable sutures.
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c
509
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Fig. 3 (a) Representation of the disposition of the ducts in the duodenum wall, 1 ampullary lesion, 2 bile duct, 3 pancreatic duct. (b) Resection of the ampullary lesion. (c) Surgical bed and surgical piece resected. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed. Michael L. Kendrick, Michael B. Farnell. Transduodenal Resection of Periampullary Villous Neoplasms. 905–911. Copyright (2016), with permission from Springer) [9]
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bc
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G. Ochoa and I. Dominguez-Rosado
a
Fig. 4 (a) Surgical bed after resection of the ampullary lesion with bile duct and pancreatic duct exposed. (b) Interrupted suture to reimplant the ducts into the duodenal wall. (c) Reimplanted bile and pancreatic duct in the duodenum. (Reprinted from Atlas of Upper Gastrointestinal and Hepato­Pancreato- Biliary Surgery, 2nd ed. Michael L. Kendrick, Michael B. Farnell. Transduodenal Resection of Periampullary Villous Neoplasms. 905–911. Copyright (2016), with permission from Springer) [9]
5 Minimally Invasive Approach
Due to the development and growing expertise of minimally invasive techniques in HPB surgery, laparoscopic and robotic approaches to ampullary surgery have been described in limited case series [10, 11].
The patient is typically positioned with the legs spread, and the table is rolled to the left. The trocars will be placed in the superior abdomen triangulating to the right hypochondrium and including one to retract and expose the subhepatic space. The
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exposition of the duodenum is performed by freeing the hepatic exure of the colon and the Kocher maneuver. By rst performing a partial resection of the inferior aspect of the lesion, the pancreatic duct is better exposed and reimplantation is com­pleted prior to nishing resection of the superior aspect of the lesion. Once the specimen is resected the bile duct is reimplanted. The duodenal closure is similar to the open approach [11].
6 Endoscopic Approach
Endoscopic Ampullectomy was rst described in 1983 by Suzuki etal., with the rst large case series reported in 1993 by Binmoeller etal. [12] The technique has been adopted for adenomas of the ampulla with low morbidity and mortality in selected cases. A careful endoscopic examination is mandatory to evaluate features suggestive of malignancy, for example, large size (>2–3cm), ulceration, induration/ rm consistency, and a friable lesion. The goal of the procedure is bloc resection of the entire neoplasm [13].
The procedure is summarized by the following steps: (1) submucosal injection, (2) resection with endoscopic snare and electrocautery, (3) recovery of the specimen(s), and (4) hemostasis. Sphincterotomy and stent placement after the pro­cedure has been described to decrease complication rates, but the evidence is not denitive. The overall complication rate is about 15%. Procedure-related mortality after endoscopic ampullectomy has been reported but is rare, occurring in 0.3% [8] (Fig.5).
a
Fig. 5 Endoscopic ampullectomy. (a) Endoscopic vision of ampullary adenoma. (b and c) Resection with endoscopic snare. Contribution of Hugo Ritcher, MD, Universidad Católica de Chile
b
c
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7 Final Comments
• SA is an alternative for resection of non-invasive tumors not amenable for EP.
• The approach requires thorough understanding of ampullary anatomy due to the
complexity of the localization.
• The key is the identication of the ducts and their reimplantation in the duode-
num wall.
• A minimally invasive approach is possible in the experience centers.
References
1. Avisse C, Flament JB, Delattre JF. Ampulla of Vater. Anatomic, embryologic, and sur­gical aspects. Surg Clin North Am. 2000;80(1):201–12. https://doi.org/10.1016/
s0039- 6109(05)70402- 3.
2. Russell TB, Aroori S. Procedure-specic morbidity of pancreatoduodenectomy: a systematic review of incidence and risk factors. ANZ J Surg. 2022;92(6):1347–55. https://doi.org/10.1111/
ans.17473. Epub 2022 Jan 24.
3. Vanbiervliet G, Strijker M, Arvanitakis M, Aelvoet A, Arnelo U, Beyna T, Busch O, Deprez PH, Kunovsky L, Larghi A, et al. Endoscopic management of ampullary tumors: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Endoscopy. 2021;53:429–48.
4. Halsted WS.Contributions to the surgery of the bile passages, especially of the common bile duct. Boston Med Surg J. 1899;141:645–54. https://doi.org/10.1056/NEJM189912281412601.
5. Heise C, Abou Ali E, Hasenclever D, Auriemma F, Gulla A, Regner S, Gaujoux S, Hollenbach M. Systematic review with meta-analysis: endoscopic and surgical resection for ampullary lesions. J Clin Med. 2020;9(11):3622.
6. Rostain F, Hamza S, Drouillard A, Faivre J, Bouvier AM, Lepage C.Trends in incidence and management of cancer of the ampulla of Vater. World J Gastroenterol. 2014;20:10144–50.
7. Scroggie DL, Mavroeidis VK. Surgical ampullectomy: a comprehensive review. World J Gastrointest Surg. 2021;13(11):1338–50. https://doi.org/10.4240/wjgs.v13.i11.1338.
8. Espinel J, Pinedo E, Ojeda V, Guerra Del Río M.Endoscopic ampullectomy: a technical review. Rev Esp Enferm Dig. 2016;108(5):271–8. https://doi.org/10.17235/reed.2016.3867/2015.
9. Kendrick ML, Farnell MB. Transduodenal resection of periampullary villous neo­plasms. In: Clavien PA, Sarr M, Fong Y, Miyazaki M, editors. Atlas of upper gastro­intestinal and hepato- pancreato-biliary surgery. Berlin: Springer; 2016. https://doi.
org/10.1007/978- 3- 662- 46546- 2_95.
10. Borie F, Beliard A.Laparoscopic ampullectomy. J Visc Surg. 2012;149(4):e252–8. https://doi.
org/10.1016/j.jviscsurg.2012.06.008. Epub 2012 Aug 10.
11. Linn YL, Wang Z, Goh BKP.Robotic transduodenal ampullectomy: case report and review of the literature. Ann Hepatobiliary Pancreat Surg. 2021;25(1):150–4. https://doi.org/10.14701/
ahbps.2021.25.1.150.
12. Binmoeller KF, Boaventura S, Ramsperger K, Soehendra N. Endoscopic snare excision of benign adenomas of the papilla of Vater. Gastrointest Endosc. 1993;39(2):127–31. https://doi.
org/10.1016/s0016- 5107(93)70051- 6.
13. Klair JS, Irani S, Kozarek R. Best techniques for endoscopic ampullectomy. Curr Opin Gastroenterol. 2020;36(5):385–92. https://doi.org/10.1097/MOG.0000000000000657.
Pancreatoduodenectomy
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(Whipple Procedure)
KatherineMcElroy andJ.BartRose
1 Background andIndications
Pancreas cancer is the third most common cause of cancer related death in the United States with ~64,000 new diagnoses each year and a 5-year survival rate of 12% [1].
The pancreatoduodenectomy or “Whipple procedure” is one of the most techni­cally challenging operations performed and has evolved greatly over time [2]. Named after the surgeon to rst publish a series of pancreatic head resections, Dr. Allen Oldfather Whipple’s rst attempts were multi-stage and generally included a biliary decompression step followed by a later resection of the pancreatic head with subsequent reconstitution [3].
Adenocarcinoma of the pancreatic head is the most common indication for a Whipple procedure. Patients with these tumors generally have a poor prognosis, as 80–90% will not be candidates for potentially curative resection [4]. Patients who undergo resection have a 20% 5-year overall survival rate [4]. Other indications for pancreatoduodenectomy include malignant (e.g. gastrointestinal stromal tumors, pancreatic neuroendocrine tumors, cholangiocarcinoma, duodenal adenocarcinoma, and periampullary carcinoma) and benign pathology (e.g. pancreatitis, trauma, and cystic lesions).
K. McElroy · J. B. Rose (*) Department of Surgery, The University of Alabama at Birmingham, Birmingham, AL, USA e-mail: jbrose@uabmc.edu
Switzerland AG 2024 H. Chen, B. Lindeman (eds.), Illustrative Handbook of General Surgery,
https://doi.org/10.1007/978-3-031-63878-7_43
513© The Author(s), under exclusive license to Springer Nature
514
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K. McElroy and J. B. Rose
2 Perioperative Care
2.1 Pre-operative Optimization
Patients should be assessed for nutritional status prior to surgery, as malnutrition is a risk factor for surgery-related complications [5]. Indicators of malnutrition can include serum markers (e.g. albumin, prealbumin) recent weight loss, low body mass index (BMI), or sarcopenia [5]. Prehabilitation programs that include exercise and nutrition regimens can the provide additional benets of increasing functional status and improving surgical outcomes [6]. For patients with borderline/locally advanced disease, factors associated with decreased post-operative morbidity include extended (6 cycles) of neoadjuvant chemotherapy, favorable post­chemotherapy CA19-9 response, and major pathologic response [7]. High-quality, multiphase, cross-sectional imaging should be obtained prior to resection. We pre­fer this be done within 6 weeks of planned resection. Relationship of lesions to regional vessels, evidence of distant disease, or aberrant vascular anatomy should be carefully evaluated.
2.2 Pre-operative Preparation
After appropriate consents for surgery have been obtained and operating room arrival, the patient should be placed in the supine position on a standard operating table and general anesthesia induced. To promote early recovery after surgery, sur­geons may pursue locoregional blocks to mitigate post-operative pain. For vascular access, we prefer placement of an arterial line and do not nd benet in central venous catheter access if two large bore peripheral IVs can be obtained. Perioperative broad-spectrum antibiotics such as piperacillin-tazobactam should be administered to lower post-operative surgical site infection (SSI) risk [8]. Thromboprophylaxis should be administered peri-operatively [9].
Core body temperature should be maintained in a normothermic range through­out the case. The patient should then be prepped with chlorhexidine solution and draped in sterile fashion [10]. We recommend the bottom drape at the pubic tuber­cle, the top drape at the sternal notch, and both side drapes at the midaxillary line. If vein reconstruction is considered, the patient’s thighs can also be prepped and draped within the surgical eld for possible vein harvest. Finally, surgical time out should be conducted before the start of the procedure.