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Techniques of Vascular Exclusion and Caval Resection

333

 

 

Reconstruction of Vena Cava

This technique is an alternative to associated cava reconstruction. It restores liver perfusion while working on the vena cava.

STEP 1

Open hepatic outflow by releasing the clamp on the suprahepatic vena cava.

Clamp the vena cava again below the hepatic veins.

STEP 2

Open hepatic inflow by releasing the tourniquet on the hepatoduodenal ligament.

Now the retrohepatic cava is occluded while the liver is perfused.

334

SECTION 3

Liver

 

 

 

STEP 3

The retrohepatic vena cava can now be resected. Reconstruction is accomplished with a Gore-tex interposition graft in an end-to-end fashion. Then release the cava clamp and the tourniquet on the lower cava.

Tricks of the Senior Surgeon

 

Hanging Maneuver for Anatomic Hemihepatectomy

 

(Including Living-Donor Liver Transplantation)

 

Jacques Belghiti, Olivier Scatton

 

In addition to the conventional approach described for liver resection in the chapters on

 

conventional hepatectomies, the hanging maneuver has gained wide acceptance among

 

liver surgeons. Depending on the situation, it can be used for resective liver surgery or

 

for living related liver donation.

 

 

STEP 1

Suprahepatic preparation

 

After the hilar preparation, the anterior leaf of the coronary ligament and the anterior

 

 

part of the right triangular ligament are dissected to expose the left side of the right

 

hepatic vein. The space between the right and the median hepatic vein and the supra-

 

hepatic vena cava is freed by means of a vascular clamp.

336

SECTION 3

Liver

 

 

 

STEP 2

Infrahepatic preparation of the vena cava

 

 

 

 

Starting right above the origin of the right renal vein, the space between the vena cava and the liver is freed. In order to prepare the tunnel where the tape will be passed, one or two short veins to the caudate lobe need to be ligated. The tunnel is now prepared by carefully opening the avascular plane between the liver and the anterior surface of the vena cava with scissors. A tape is passed with an aortic clamp from the right side of the median hepatic vein along the retrohepatic IVC to the inferior part of segment 1 (A), which is divided to place the tape near the right portal pedicle (B).

Hanging Maneuver for Right Hemihepatectomy (Including Living-Donor Liver Transplantation)

337

 

 

 

STEP 3

Parenchymal transsection

 

 

 

 

Slight traction on the tape leads to a separation of the right and the left hemiliver and allows easy identification of the right plane of parenchymal transsection. Depending on the situation, transsection is done with or without inflow occlusion and with the appropriate technique as described in the chapter on parenchymal transsection. Vessels with a diameter of less than 3mm are coagulated while larger vessels are ligated using

sutures or clips. At the end of the transsection, the two hemilivers are completely divided just joining together by hilar vessels and hepatic veins. The procedure is now continued depending on the situation (i.e., living related liver transplantation or liver resection

for a tumor).

338 SECTION 3 Liver

Modified Hanging Maneuver

for Middle Hepatic Vein Harvesting

For the harvest of the middle hepatic vein in a living donor procedure or for an oncologic extended resection, the hanging maneuver is adapted in order to facilitate the transsection along the left side of the vein. First, the hepatotomy is started on the top, near the median hepatic trunk, which allows identification of the left hepatic vein and the median hepatic vein, respectively (A).

Once the median hepatic vein has been freed, the tape is switched to the left side of the middle hepatic vein (B) and the procedure is continued as described in Step 3.

Tricks of the Senior Surgeon

Liver Resections

Panco Georgiev, Pierre-Alain Clavien

Indications and Contraindications

Indications

Primary and secondary malignancy (e.g., hepatocellular carcinoma, intrahepatic

 

 

cholangiocarcinoma, colorectal metastases, neuroendocrine tumors)

 

Benign neoplasia (e.g., adenoma, giant hemangioma)

 

Echinococcus multilocularis (alveolaris)

 

Abscesses refractory to conservative management

 

Other benign diseases (e.g., Caroli syndrome)

 

Living donor liver transplantation (modified technique; see chapter “Living Donor

 

 

Liver Transplantation”)

 

Klatskin’s tumor (modified approach to the bile duct; see Section 4

 

Traumatic liver lesions

 

 

Acute hepatitis (viral or alcoholic)

Contraindications

 

Severe chronic hepatitis

 

Poor liver reserve (e.g., Child-Pugh C cirrhosis)

 

Severe portal hypertension (e.g., esophageal varices, ascites or hepatic venous

 

 

pressure gradient >10mmHg)

 

Severe coagulopathy despite vitamin K administration

 

Severe thrombopenia (platelet count <30,000/mm3)

Preoperative Investigation and Preparation for the Procedure

History:

Alcohol, hepatitis and hepatotoxic medication, blood transfusions,

 

tattoos, etc.

Clinical evaluation: Encephalopathy, ascites, jaundice, nutritional status, signs of portal

 

hypertension

Laboratory tests:

ALT, AST, bilirubin, alkaline phosphatase, albumin, coagulation

 

parameters (PT, platelets), tumor markers and serologies

 

(e.g., hepatitis, echinococcus) when indicated

CT scan or MRI

Assessment of liver volume (major resections) and resectability

 

of the lesion

PET scan

Searching for extrahepatic lesions (e.g., colorectal metastases)

340

SECTION 3

Liver

 

 

 

 

Postoperative Tests

 

 

Postoperative surveillance in an intensive or intermediate care unit

 

 

Coagulation parameters and hemoglobin for at least 48h

 

 

Check daily for clinical signs of liver failure such as jaundice and encephalopathy

 

Postoperative Complications

Short term:

Pleural effusion

Ascites

Liver failure

Intra-abdominal bleeding

Bile leak

Subphrenic abscess

Portal vein thrombosis

Long term:

Biloma

Biliary stricture

Bronchobiliary fistula

Right Hemihepatectomy

341

 

 

 

Right Hemihepatectomy

 

Panco Georgiev, Pierre-Alain Clavien

 

Procedure

 

 

STEP 1

Access, exposure and exploration

 

After a right subcostal incision, the round and falciform ligaments are divided, a

 

 

retractor (e.g., Thompson) is installed and the abdomen is explored (A-1). Tumor size,

 

number, and location in relation to vascular structures are evaluated by intraoperative

 

ultrasound and a definitive decision regarding resectability of the lesion is made (A-2).

A-1

A-2

342

SECTION 3

Liver

 

 

 

STEP 2

Mobilization of the right lobe

 

 

 

 

The right lobe is mobilized by dissection of the anterior leaf of the coronary ligament and the right triangular ligament. The assistant retracts the liver inferiorly and to the left using a gauze swab. The finger blade (Thompson) which is retracting the stomach and duodenum should be removed during this part of the procedure. Approaching the cava, the ligament can be exposed by means of a right angle or a Kelly clamp (A-1). Ligaments can be well presented by passing a finger between the diaphragm and the coronary ligament (A-2). Care must be taken to protect the phrenic vessels and secure hemostasis from phrenic collaterals.

Next, the Pringle maneuver is prepared as shown in the chapter “Techniques of Vascular Exclusion and Caval Resection.” The falciform, round, and right coronary ligaments are divided and the gallbladder is removed as described in Sect.4, chapter “Laparoscopic Cholecystectomy, Open Cholecystectomy and Cholecystostomy.”