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Hepatic Procedures
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Fig. 36 Anterior Abdominal wall cyst arising from the left liver
Fig. 37 Aspiration of the
cyst contents
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Falcifo ligament
Left liver
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Fig. 38 Decompressed cyst after aspiration of contents
8.3 Resection ofCyst Roof
A. Haddad and T. E. Newhook
Left liver
The cyst roof may then be removed using cautery and sent for pathology. Care should be taken to inspect the cyst oor for an evidence of bile leak in which case this can be repaired.
References
1. Dimick JB, Wainess RM, Cowan JA, Upchurch GR Jr, Knol JA, Colletti LM.National trends in
the use and outcomes of hepatic resection. J Am Coll Surg. 2004;199(1):31–8.
2. Lendoire M, Maki H, Haddad A, Jain AJ, Vauthey JN. Liver Anatomy 2.0 Quiz: Test
Your Knowledge. J Gastrointest Surg. 2023;27(12):3045–68. https://doi.org/10.1007/
s11605-023-05778-7.
3. Lendoire M, Maki H, Haddad A, Jain AJ, Vauthey JN. Biliary Anatomy 2.0 Quiz: Test
Your Knowledge. J Gastrointest Surg. 2023;27(7):1510–29. https://doi.org/10.1007/
s11605-023-05634-8.
4. Geller DA, Tohme S. Liver Anatomy Quiz: Test Your Knowledge. J Gastrointest Surg.
2021;25(4):1093–104. https://doi.org/10.1007/s11605-020-04582-x.
5. Chang SB, Palavecino M, Wray CJ, Kishi Y, Pisters PW, Vauthey JN.Modied Makuuchi inci-
sion for foregut procedures. Arch Surg. 2010;145(3):281–4.
6. Torzilli G, Montorsi M, Palmisano A, et al. Right inferior phrenic vein indicating the right
hepatic vein conuence into the inferior vena cava. Am J Surg. 2006;192(5):690–4.
Hepatic Procedures
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7. Belghiti J, Guevara OA, Noun R, Saldinger PF, Kianmanesh R.Liver hanging maneuver: a safe
approach to right hepatectomy without liver mobilization. J Am Coll Surg. 2001;193(1):109–11.
8. Aloia TA, Zorzi D, Abdalla EK, Vauthey JN.Two-surgeon technique for hepatic parenchymal
transection of the noncirrhotic liver using saline-linked cautery and ultrasonic dissection. Ann
Surg. 2005;242(2):172–7.
9. Mise Y, Aloia TA, Brudvik KW, Schwarz L, Vauthey JN, Conrad C. Parenchymal-sparing
hepatectomy in colorectal liver metastasis improves salvageability and survival. Ann Surg.
2016;263(1):146–52.
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Perihilar Cholangiocarcinoma
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JoséDonizetide MeiraJúnior andIsmaelDominguezRosado
1 Introduction
Cholangiocarcinoma accounts for approximately 3% of gastrointestinal tumors and nearly 20% of deaths from hepatobiliary cancer [1]. According to its location, it is classied as intra-hepatic, perihilar, or distal, representing three distinct entities in biology, treatment options, and prognosis [2]. Perihilar cholangiocarcinoma (h-CCA) accounts for two-thirds of the cases. It is dened anatomically as tumors located in the extrahepatic biliary tree proximal to the origin of the cystic duct [3].
The most frequent presentation of h-CCA is obstructive jaundice, associated with pruritus or weight loss, with up to 10% of patients presenting with cholangitis [4]. In addition, non-specic symptoms may occur, such as abdominal pain or dis­comfort. Patients with suspected h-CCA should preferably be managed in a special­ized center before any invasive procedure is performed because these could impair further imaging workup and staging [5].
Although most patients with hilar strictures and jaundice have cholangiocarci­noma, alternative diagnoses are possible in 10% to 15% of patients. The most com­mon are gallbladder carcinoma, Mirizzi syndrome, autoimmune cholangitis, and primary sclerosing cholangitis. In most cases, tissue diagnosis is not mandatory to proceed with resection [6].
J. D. de MeiraJúnior Hospital das Clínicas, University of Sao Paulo School of Medicine, Sao Paulo, Brazil
I. D. Rosado (*) Instituto Nacional de Ciências 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_40
487© The Author(s), under exclusive license to Springer Nature
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J. D. de MeiraJúnior and I. D. Rosado
2 Preoperative Preparation
An imaging workup (contrast-enhanced CT scan or MRI) should be done before biliary drainage. The latter may impair adequate visualization of the tumor location, its extension through the biliary tree, and any vascular involvement at the hepatic hilum [5]. After a complete understanding of the patient’s anatomy and its relation to the tumor, adequate drainage of the remaining liver should be granted if needed. Nodal (outside the hepatoduodenal ligament) or distant metastasis should preclude resection as well as signicant baseline comorbidities such as portal hypertension, cirrhosis, and poor performance status [6]. It is essential to mention that adenopathy in imaging studies may be reactive in the setting of biliary instrumentation, there­fore, should not necessarily preclude surgical exploration [7].
Biliary drainage is still controversial. However, it is mandatory in patients pre­senting with cholangitis, and it is recommended when an extensive resection is planned, as obstructive jaundice hampers regeneration capability. Patients with less than 30 to 40% of future liver remnant (FLR) should undergo biliary drainage [7, 8]. Some authors consider drainage in patients with FLR lower than 50%, as it has been pointed out as a risk factor for mortality [9]. Percutaneous transhepatic biliary drainage is associated with less conversion and lower rates of pancreatitis and chol­angitis than endoscopic biliary stenting, but the former has the risk of seeding metastasis. In Eastern countries, endoscopic nasobiliary stents are widely used, with good results [7, 8].
Patients with less than 40% of future liver remnant should undergo portal vein embolization (PVE) [8]. A post-PVE kinetic growth rate of the FLR exceeding 2% per week correlated with reduced hepatic insufciency rates [10].
3 Indications
The Bismuth-Corlette classication (Fig. 1) aids in planning the resection, as it indicates the proximal extent of biliary involvement and is used along with the detailed study of vascular compromise [11].
The Bismuth-Corlette type I tumor is rare, and some authors suggest that most tumors considered as a Bismuth I cholangiocarcinoma are gallbladder tumors with common bile duct inltration. Therefore, bile duct resection alone may be consid­ered for this type of tumor [11].
Bismuth-Corlette type II tumors can theoretically be treated with bile duct resec­tion and caudate lobe resection. However, associating this procedure with a hepatec­tomy (generally right or extended right) increases the radicality of the procedure [11].
Except for Bismuth type I cholangiocarcinoma, all other types require concomi­tant liver resection as it improves the R0 rates and 5-year survival. Type III tumors require right or left hepatectomy, according to the side of the biliary extension. In
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Fig. 1 Bismuth-Corlette classication of perihilar cholangiocarcinoma. (Reprinted from Atlas of Advanced Operative Surgery, 1st edition, Cherqui D, Bismuth, Resection Hilar Cholangiocarcinoma with en Bloc Hepatectomy, 324–333, Copyright (2013), with permission from Elsevier) [11]
both cases, segment I should be included in the resection. Type IV tumor is theoreti­cally a contraindication to surgery. However, extended hepatectomies can occasion­ally be applied to highly selected cases [11].
Because of specic biliary drainage and anatomical location (Fig.2), caudate lobe resection should be included in all cases, as it improves the likelihood of R0 resection and survival. Additionally, it may decrease the risk of postoperative biliary stula, as leaving the caudate in place could mean to leave an orphaned caudate duct, which could contribute to bile leak [12].
Invasion of vascular branches ipsilateral to the biliary extension of the tumor is not a contraindication to resection. Vascular invasion of the central portal vein, com­mon hepatic artery, or branches contralateral to the biliary extension is a contraindi­cation to resection. Invasion of the portal or arterial bifurcation is generally a contraindication to surgery, although vascular resection and reconstruction could be considered in selected cases [11].
Frozen sections are recommended to assess biliary or vascular surgical margins. However, these should only be done if additional resection is feasible [13].
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J. D. de MeiraJúnior and I. D. Rosado
Fig. 2 Biliary drainage and anatomic location of caudate lobe. (Reprinted from Atlas of Advanced Operative Surgery, 1st edition, Cherqui D, Bismuth, Resection Hilar Cholangiocarcinoma with en Bloc Hepatectomy, 324–333, Copyright (2013), with permission from Elsevier) [11]
4 Surgical Technique
The principle of surgical treatment is to obtain R0 margins with hepatic pedicle lymphadenectomy and en bloc extrahepatic bile duct and liver resection, as it is the only potentially curative treatment for patients with resectable disease [8, 11].
Initially, the abdominal cavity must be inspected for carcinomatosis, nodal metastasis, intrahepatic metastasis, and ductal invasion at the pancreas level. Intraoperative ultrasound is paramount to evaluating ductal extension and vascular invasion [7].
Exploration and dissection of the hepatoduodenal ligament is the next step (Fig.3). Irreversible divisions should not be performed before the possibility of resection is conrmed [11].
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Fig. 3 Exploration and dissection of the hepatoduodenal ligament. (Reprinted from Atlas of Advanced Operative Surgery, 1st edition, Cherqui D, Bismuth, Resection Hilar Cholangiocarcinoma with en Bloc Hepatectomy, 324–333, Copyright (2013), with permission from Elsevier) [11]
The right gastric artery and minor supra duodenal vessels are divided. Next, the lymphatic tissue around the gastroduodenal artery, common hepatic artery, proper hepatic artery, and portal vein is dissected, completely exposing these vessels. Dissection is continued to expose the portal vein and hepatic artery bifurcations, and vascular invasion is assessed [11].
After dening that the tumor is resectable, the common bile duct is divided above the duodenum, and a frozen section can be performed if additional resection (includ­ing pancreatoduodenectomy) is feasible [13]. Bile samples are sent for culture if previously stented Bile duct resection is continued cranially, allowing a better expo­sure of vascular structures (Fig.4).
Until now, the steps are the same for right and left hepatectomies. However, from now on, the following steps depend on the side of the resection.
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Fig. 4 Exposure of vascular structures and lymphadenectomy of the hepatoduodenal ligament. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed., Cherqui D, Bismuth, Shimizu H, Miyazaki M, Left-sided Hepatectomy (Left Hemihepatectomy or Left Trisectionectomy) Extending to the Caudate Lobe with Bile Duct Resection for Perihilar Cholangiocarcinoma. 649–661, Copyright (2016), with permission from Springer) [15]
J. D. de MeiraJúnior and I. D. Rosado
5 Right Hepatectomy
With the hepatic pedicle exposed and all the hepatoduodenal ligament’s lymphatic tissue resected, the right hepatic artery is now ligated and divided. The right portal vein is now divided with a vascular stapler or after clamp placement with 5-0 non­absorbable running suture (Fig.5). Next, the left portal pedicle is detached from the hilar plate.
The falciform ligament, the right coronary ligament, and the right triangular liga­ment are divided to expose the right hepatic vein and free the right liver. Next, the vena cava ligament is divided between clamps, and the proximal stump is sutured, as it may contain venous branches. Short hepatic veins draining the caudate lobe to the vena cava are then ligated and divided, freeing the caudate lobe from the vena cava. Finally, the right hepatic vein is stapled or divided between clamps and sutured (Fig.6) [14].
At this point, an ischemic demarcation should be visualized in the liver surface in the Cantlie line, between the right and left livers. The liver transection is then started with the technique chosen by the surgeon. After the transection, the speci­men should be hanging by the hilar plate at the left bile duct level (Fig.7) [14]. Next, the left hepatic duct is transected, and the specimen is removed. If additional resection is feasible, frozen section evaluation should be performed in the intrahe­patic biliary margin [13].
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Fig. 5 Control of the right hepatic pedicle in right hepatectomy. Exposure of vascular structures and lymphadenectomy of the hepatoduodenal ligament. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed., Ebata T, Nagino M, Right Hepatectomy (Resection of Segments 5, 6, 7, 8, and 1) with Bile Duct Resection. 637–647, Copyright (2016), with permission from Springer) [14]
Fig. 6 Mobilization of the right liver, ligation of short hepatic veins and control of the right hepatic vein. (Reprinted from Atlas of Upper Gastrointestinal and Hepato-Pancreato-Biliary Surgery, 2nd ed., Ebata T, Nagino M, Right Hepatectomy (Resection of Segments 5, 6, 7, 8, and 1) with Bile Duct Resection. 637–647, Copyright (2016), with permission from Springer) [14]
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6 Left Hepatectomy
Once the hepatoduodenal lymphadenectomy is completed and the hepatic pedicle is fully exposed, the left hepatic artery and the artery to segment IV (or middle hepatic artery) are ligated and divided in their origin. Next, the left portal vein is ligated and divided, or stapled with a vascular cartridge. If there is not enough length for liga­tion and division, the portal vein is divided after clamping the portal trunk and right portal vein and is transversely sutured to prevent stenosis [15].