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Atlas of General Surgical Techniques (Courtney M. Townsend Jr., B. Mark Evers)

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C H A P T E R 42 • Choledochoduodenostomy and Hepaticojejunostomy

439

Common

hepatic artery

Common

bile duct

Duodenum

FIGURE 42–2

Common

bile duct

Choledochotomy

Kocherized

duodenum

FIGURE 42–3

4 4 0 S E C T I O N V • G A L L B L A D D E R

A transverse duodenotomy is then performed adjacent to the choledochotomy using electrocautery (Figure 42-4, A).

3.ANASTOMOSIS

Absorbable 4-0 Vicryl sutures are used to perform a single-layer, side-to-side anastomosis. A stitch is first placed at the inferior apex of the choledochotomy, through the center of the back wall of the duodenotomy with the knots placed on the outside. This apex suture is tied (see Figure 42-4, A).

Next, lateral stay sutures are placed. They pass from the midpoint of the choledochotomy on each side to the respective end of the duodenotomy. These sutures are not tied and are placed in hemostat clamps (Figure 42-4, B). Holding these stay sutures out laterally nicely aligns the bile duct and duodenum for placement of the remaining sutures.

A B

FIGURE 42–4

C H A P T E R 42 • Choledochoduodenostomy and Hepaticojejunostomy

441

The posterior row of sutures is then placed with the knots on the outside (Figure 42-5). These can be tied and cut as the surgeon proceeds from the apex stitch to the lateral corner on each side.

FIGURE 42–5

4 4 2 S E C T I O N V • G A L L B L A D D E R

The anterior row is then completed in similar fashion. An apex stitch is placed from the midpoint of the duodenotomy to the superior apex of the choledochotomy (Figure 42-6, A). The remaining stitches are placed in the anterior bile duct (Figure 42-6, B). To allow for easier suture placement and careful approximation of the bile duct and duodenal mucosa, the anterior sutures are all placed before they are tied down.

A

B

FIGURE 42–6

C H A P T E R 42 • Choledochoduodenostomy and Hepaticojejunostomy

443

HEPATICOJEJUNOSTOMY

1.INCISION

The operation is performed through a right subcostal incision or an upper midline incision

(Figure 42-7).

FIGURE 42–7

4 4 4 S E C T I O N V • G A L L B L A D D E R

2. DISSECTION

Patients have often had previous cholecystectomy and there may be adhesions between the omentum and the liver and portal structures. These are dissected sharply using electrocautery or scissors, or both (Figure 42-8).

The common bile duct/common hepatic duct are circumferentially dissected (Figure 42-9). If a biliary stent has been previously placed, it can be palpated in the porta hepatis to help identify the dissection plane. A vessel loop can be placed around the common bile duct, which can facilitate dissection superiorly and inferiorly along the duct. The gallbladder has often already been removed, but if it has not, cholecystectomy should be performed at the same time.

The common hepatic duct is then divided using electrocautery or scissors (Figure 42-10). If a stricture is present, it is critical to divide the bile duct proximal to the stricture.

Figure 42-11 shows excision of the strictured portion of the extrahepatic biliary tree if present. The insert shows the ligation of the distal common bile duct with running absorbable suture.

Adhesions between omentum and liver

FIGURE 42–8

C H A P T E R 42 • Choledochoduodenostomy and Hepaticojejunostomy

445

Gallbladder

Left

fossa

hepatic

 

 

duct

 

Common

 

hepatic duct

Right hepatic duct

Common

bile duct

FIGURE 42–9

 

 

 

 

 

 

 

 

FIGURE 42–10

FIGURE 42–11

 

 

4 4 6 S E C T I O N V • G A L L B L A D D E R

After the bile duct has been divided and the distal end oversewn, a Roux-en-Y limb is created. The transverse colon is lifted and the ligament of Treitz is identified. The jejunum is divided distal to the ligament of Treitz at a convenient arcade such that the Roux limb will easily reach the bile duct. An incision is made in the transverse mesocolon above the duodenum and to the right of the middle colic vessels (Figure 42-12).

The Roux limb is brought retrocolic through the transverse mesocolon on the right side for the hepaticojejunostomy (Figures 42-13 and 42-14).

The staple line of the jejunal limb is oversewn using interrupted 3-0 silk sutures.

3. ANASTOMOSIS

Absorbable 4-0 Vicryl sutures are used to perform a single-layer, end-to-side hepaticojejunostomy.

Before making an enterotomy in the jejunum, the posterior layer of the anastomosis is performed. Two corner sutures are placed first. These sutures go through the jejunum, incorporating the submucosa. They are then placed inside out through the bile duct and secured with hemostats (Figure 42-15, A).

The back wall is then placed through the jejunum, incorporating the submucosa, and then through the bile duct with the knots on the inside (Figure 42-15, B).

Ligament of Treitz

Proximal

jejunum

 

Distal

FIGURE 42–12

jejunum

C H A P T E R 42 • Choledochoduodenostomy and Hepaticojejunostomy

447

FIGURE 42–14

FIGURE 42–13

A B

FIGURE 42–15

4 4 8 S E C T I O N V • G A L L B L A D D E R

After all the sutures in the posterior row have been placed, the jejunum is telescoped down to the bile duct and all of the sutures are tied, including the corner sutures. The corner sutures are placed back in hemostats and the other sutures are cut.

After tying the posterior row of sutures, the surgeon makes a small enterotomy in the jejunum (Figure 42-16, A). If a biliary stent is used, the surgeon places the distal end into the jejunal limb at this point.

The anterior layer of the anastomosis is completed using interrupted 4-0 Vicryl sutures through both the jejunum and the bile duct (Figure 42-16, B).

After construction of the hepaticojejunostomy, the surgeon perfoms a standard two-layer end-to-side jejunojejunal anastomosis to restore bowel continuity. The posterior row of interrupted 3-0 silk is shown in Figure 42-17, A. The running inner layer of 3-0 Vicryl is shown in Figure 42-17, B. This is a running, locking suture in the posterior row and a Connell stitch in the anterior row. Figure 42-17, C shows the interrupted layer of 3-0 silk sutures used to complete the anterior row.

Figure 42-17, D shows the completed anastomosis. Interrupted 3-0 silk sutures are used to close the mesenteric defect at the jejunojejunal anastomosis (see Figure 42-17, D) and to tack the Roux limb to the transverse mesocolon, where it passes retrocolic to prevent internal herniation.

A B

FIGURE 42–16