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462 Atlas of Gastrointestinal Surgery: Esophagus
Mediastinal pleura opened
The lung is retracted anteriorly, and the mediasti­nal pleura opened over the section of esophagus where the tumor resides. Depicted is a tumor at the level of the azygos vein; in this case, the azy­gos vein is mobilized and divided with an endo­scopic linear cutter/vascular stapler. The esophageal myotomy is performed longitudinally over the tumor with a hook cautery on low voltage (2). The leiomyoma is enucleated by blunt dissec­tion. Once freed, it is placed in an endoscopic bag (3) to minimize tumor seeding as it is extracted through one of the port sites.
Azygos v. divided
Leiomyoma
2
3
Video-Assisted Thoracic Surgical Resection of Esophageal Leiomyoma 463
Esophageal mucosa
4
Proximal esophagus
Integrity of the mucosal layer is evaluated by insufflating air through the esophagoscope while occluding the distal esophagus with a sponge stick (4). Finally, the muscular layer of the esophagus is closed with interrupted 4-0 silk sutures (5). A small chest tube is left in the pleural space via the most inferi­or port site, closing the other ports.
Distal esophagus
Muscular layer of esophagus closed
5
Esophagogastrectomy: Separate Abdominal and Thoracic Incisions
Operative Indications
Esophagogastrectomy performed through an upper midline abdominal incision and a right lateral thoracotomy incision (Ivor Lewis esophagectomy) is used primarily to resect malignant neoplasms of the intrathoracic esophagus. Adenocarcinomas arising in the middle and distal portion of the esophagus, generally from Barrett’s mucosa, and squamous cell carcinomas of the middle and distal third of the esophagus are the usual indications. Before performing this procedure, patients with malig­nancies are usually staged with barium studies, endoscopy, endoscopic ultrasonography, and CT scans of the abdomen and chest. A wide spectrum of patients is eligible for this procedure including patients with advanced disease, patients with high-grade Barrett’s dysplasia, early-stage disease, and cancer downstaged with induction therapy. If there are widespread liver metastases, ascites, or other evidence of extensive spread, other means of palliation for the dysphagia should be con­sidered. The operative procedure can also be performed for benign strictures of the distal esophagus. Generally, howev­er, when the esophageal pathology is benign, colon, instead of stomach, is used for replacement. Also, when an acute perforation through a diseased distal esophagus is recognized immediately, this operative procedure can be considered.
Operative Technique
The patient is initially positioned supine, and the abdomen opened through an upper midline incision. The abdomen is explored to be certain that extensive tumor dissemina­tion does not exist, which would preclude the operative procedure. Exposure can be greatly facilitated by the use of the upper hand retractor, which allows constant retrac­tion of both costal margins from a frame attached to the operating room table. The left lobe of the liver can be retracted in a cephalad direction or, as pictured here, the tri­angular ligament can be divided and the lateral segment of the left lobe of the liver
retracted to the right. In this illustra­tion, the esophageal neoplasm is distal, near the gastroesophageal
Esophagogastrectomy: Separate Abdominal and Thoracic Incisioins 465
Triangular ligament divided
Liver
Esophageal neoplasm
junction. The neoplasm and distal esophagus are mobilized and encir­cled with a Penrose drain (1).
2
Duodenum
Vasa brevia divided
Gastrohepatic ligament
StomachStomach
1
Omentum
The greater curvature of the stomach
Stomach lifted
Greater omentum divided preserving gastroepiploic vessels
Mucosa
Pancreas
Transverse colon
is mobilized, dividing the greater
omentum. Great care must be
taken to leave the right gastroepi­ploic vessels intact. The stomach’s
vascular supply will be derived pri-
marily from the pedicle of the right
gastroepiploic vessels and, to a less-
er extent, from the right gastric vessels.
The vasa brevia are divided, and the
spleen is left in situ (2).
466 Atlas of Gastrointestinal Surgery: Esophagus
Once the greater curvature of the stomach has been mobilized and the greater omentum divided, leaving the right gastroepiploic ves­sels intact, the gastrohepatic liga­ment is opened (3).
Liver
3
Stomach
Gastric ligament opened
Gastric vessels and lymph nodes
Left gastric vessels ligated
4
Spleen
Working both from above and with the stomach reflected up in a cephalad direction from within
Stomach reflected cephalad
the lesser sac (4), the left gastric vessels are
identified, doubly ligated, and divided (5).
Care should be taken not to injure the celiac
Pancreas
axis or its other major branches, the splenic and hepatic arteries. A replaced left hepatic
artery should be looked for; if one is found,
originating from the gastric artery, this vessel
should be dissected out and ligated as close
to the stomach as possible. An attempt should
be made to dissect the lymph nodes surround-
ing the celiac axis, and leave them on the stom-
ach (specimen) side.
Esophagogastrectomy: Separate Abdominal and Thoracic Incisioins 467
The duodenum is extensively kocherized so that the stomach will have maximum mobility to be drawn up into the right chest (6). A portion of the lesser curvature is cleaned at a spot where the stomach ultimately will be divided when it is up in the chest (7). This point should be distal enough to allow any positive left gastric artery and celiac axis lymph nodes to be on the specimen side.
Lymph nodes
Right lobe of liver
Left gastric vessels divided
Hepatic a.
6
Portion of lesser curvature cleaned
Splenic a.
5
Stomach
Duodenum kocherized
7
468 Atlas of Gastrointestinal Surgery: Esophagus
The hiatus is widened by first ligating and dividing the phrenic vein,
Esophagus
Hiatus widened
Neoplasm
then dividing the crural fibers vertically toward the central tendon
with electrocautery (8). Care is taken not to free it off the peri-
cardium and not to get into the pericardial space.
8a
Much of the dissection of the distal thoracic
esophagus can be performed bluntly
through the abdominal incision.
Since both vagus nerves are removed with the specimen during the esophagectomy, either a pyloromyoto-
my (preferred) or pyloroplasty is nec-
essary (8).
Both are described previously in “Short Segment Colon Interposition for Benign Esophageal Stricture” above. The stomach and duodenum have now been com­pletely mobilized. The stomach will survive on the right gas­troepiploic and right gastric vessels.
A feeding jejunostomy is created. A site 40 cm distal to the lig­ament of Treitz is chosen. Two purse-string sutures of 3-0 silk are placed,
Rubber catheter
Jejunum
9
one inside the other. An enterotomy is made, and a 16 French red rubber catheter with several side holes is inserted through the purse-string sutures into the distal jejunum (9). The sutures are then tied to hold it in place.
10
Esophagogastrectomy: Separate Abdominal and Thoracic Incisioins 469
The enterotomy site is imbricated with several interrupted 3-0 silk
Lembert sutures. (10, 11). The jejunostomy tube is then
brought out in the left upper quadrant; the jejunal site is
tacked up to the anterior abdominal wall with interrupted 3-
0 silk sutures. The abdomen is irrigated and closed.
11
Jejunostomy feeding tube
470 Atlas of Gastrointestinal Surgery: Esophagus
The patient is repositioned in preparation for a right lateral thoracotomy. The right pleural cavity is entered through the fifth intercostal space. A short segment of the fifth rib posteriorly can be removed to improve exposure if needed. The ribs are spread with a self-retaining retractor. The mediastinal pleura is opened over the entire length of the thoracic esophagus (12).
Azygos v.
Mediastinal pleura opened
Lung retracted
Stomach
Esophagus
12
The distal portion of the esophagus,
Esophagogastrectomy: Separate Abdominal and Thoracic Incisioins 471
including the tumor, has been dissected free through the abdominal incision. The esophagus is further mobilized up to the azygos vein through the thoracotomy incision using both sharp and blunt dissection (13). The azygos vein is ligated and divided to aid in the most cephalad portion of the dissec­tion. When the entire thoracic esophagus has been mobilized, the stomach is pulled up through the widened hiatus into the chest.
Using the linear stapler and starting at
Azygos v. divided
Stomach brought into chest
Esophagus mobilized
the greater curvature, a gastric tube is creat­ed. Two or three firings of the linear stapler are required to reach the point previously cleaned along the lesser curvature (14, 15).
Esophagus divided
Fundus divided
Neoplasm
13
GIA stapler
Neoplasm
14
Esopjhagus
15