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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 16 • Esophagectomy—Transhiatal

179

The cervical esophagus is mobilized by blunt dissection, beginning in the prevertebral space and working medially. The tracheoesophageal groove is opened with blunt dissection that is continued medially to connect with the prevertebral dissection (Figures 16-8 and 16-9).

Thyroid gland

Trachea

Recurrent laryngeal nerve

Esophagus

Internal jugular vein

Common carotid artery

Common carotid artery

FIGURE 16–8

Thyroid gland

Trachea

Recurrent laryngeal nerve

Esophagus

Internal jugular vein

Common carotid artery

Common carotid artery

FIGURE 16–9

1 8 0 S E C T I O N I I I • TH E E S O P H A G U S

Now that the proximal and distal esophagus is mobilized, the transhiatal dissection is begun to fully mobilize the remaining esophagus is continued. Continuous traction is placed on each of the Penrose drains encircling the ends of the esophagus while the surgeon bluntly develops the prevertebral plane with his or her right hand through the hiatus and left hand through the cervical incision (Figure 16-10).

Stomach

Heart

Esophagus

Tumor at distal end of esophagus

Descending aorta

FIGURE 16–10

C H A P T E R 16 • Esophagectomy—Transhiatal

181

A Penrose drain is looped around the esophagus and retracted superiorly while blunt dissection of the esophagus is continued to the level of the carina. Dissection can be performed under direct vision through the enlarged hiatus, by blunt finger dissection, or using a thoracoscope (Figure 16-11).

Esophagus

Heart

SVC

Thoracic duct

Cisterna chyli

Azygos vein

FIGURE 16–11

1 8 2 S E C T I O N I I I • TH E E S O P H A G U S

A sponge on a stick can help facilitate this dissection from the cervical incision. Once the entire posterior esophagus is mobilized, the anterior section is mobilized in similar fashion. During the anterior dissection, the surgeon must be careful not to injure the membranous portion of the trachea. The lateral esophageal attachments can be freed under direct vision from the hiatus with superior retraction of the chest wall. Lymph nodes in the subcarinal area should be dissected free and removed with the specimen. If the lateral attachments cannot be viewed, an alternative method is to insert the surgeon’s right hand through the hiatus and pin the esophagus against the spine between the index and middle fingers. The lateral tissue is then stripped from the esophagus by blunt dissection (Figures 16-12 to 16-14).

Esophagus

Diaphragm with radial incisions for enlargement

FIGURE 16–12

C H A P T E R 16 • Esophagectomy—Transhiatal

183

Heart

Esophagus

Diaphragm

FIGURE 16–13

Diaphragm

Esophagus

FIGURE 16–14

1 8 4 S E C T I O N I I I • TH E E S O P H A G U S

Once the esophagus is fully mobilized, the cervical esophagus is divided obliquely with a gastrointestinal anastomosis (GIA) stapling device (Figure 16-15).

The esophagus is pulled from the posterior mediastinum and delivered into the abdomen. At this point the surgeon should inspect the surgical bed for bleeding and insert a gauze pack into the posterior mediastinum to tamponade any minor oozing while the stomach is prepared. The fundus and distal greater curve of the stomach are grasped and held on tension while the esophagus is pulled at a 90-degree angle. A GIA stapling device can be used to resect a portion of the lesser curve and gastric cardia to gain a 4- to 6-cm margin from a distal esophageal tumor. For benign disease, only the cardia is resected to maximize collateral flow through the stomach. This process also “tubularizes” the stomach in preparation for use as a conduit. The staple line can be oversewn with 3-0 silk interrupted Lembert stitches (Figure 16-16).

Esophagus

FIGURE 16–15

 

5 cm

5

cm

 

FIGURE 16–16

C H A P T E R 16 • Esophagectomy—Transhiatal

185

The stomach is then manipulated through the enlarged hiatus to the cervical incision. A Babcock clamp can be inserted from the cervical incision into the posterior mediastinum to help grasp and deliver the fundus of the stomach into the neck (Figure 16-17).

FIGURE 16–17

1 8 6 S E C T I O N I I I • TH E E S O P H A G U S

Alternatively, a Penrose drain can be sutured to the apex of the stomach and delivered into the cervical incision to help provide traction. Both techniques use more pushing from the diaphragm side rather than pulling from the neck side. The surgeon must be careful to avoid twisting the stomach, which will compromise gastric blood flow and can lead to conduit necrosis with anastomotic breakdown (Figures 16-18 to 16-20).

The abdominal portion of the procedure is completed before the cervical anastomosis is performed. This allows time to assess the viability of the gastric conduit. In the abdomen, the hiatus is closed by approximating the crura with 2-0 Vicryl figure-of-eight stitches to easily allow 2 fingerbreadths between the stomach and hiatus. The stomach is also tacked to the diaphragm with interrupted 3-0 silk stitches to prevent subsequent gastric herniation into the chest. At this point a jejunostomy feeding tube can be placed according to surgeon preference.

Heart

Stomach

FIGURE 16–18

C H A P T E R 16 • Esophagectomy—Transhiatal

187

Esophagus

Stomach

 

Diaphragm

FIGURE 16–19

Esophagus

Stomach

FIGURE 16–20

1 8 8 S E C T I O N I I I • TH E E S O P H A G U S

Many techniques have been described to complete the cervical esophagogastric anastomosis. Stapled anastomoses have shown a lower incidence of anastomotic leak over hand-sewn anastomoses. Once an adequate length of stomach (4 to 5 cm) has been mobilized above the clavicles, the suture line from the lesser curve is oriented toward the patient’s right, and a traction suture is placed on the anterior wall of the stomach at the lower aspect of the neck wound (Figures 16-21 and 16-22).

Medial rotation of stomach

FIGURE 16–21

FIGURE 16–22