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472 Atlas of Gastrointestinal Surgery: Esophagus
This usually requires three firings of the stapler. Care is taken not to make the
gastric tube too wide. The points of division along the greater and lesser curva-
tures of the stomach are chosen to provide an adequate distal tumor margin of at
least 5 cm from the gastroesophageal junction. The staple line on the stomach is rein-
forced with an interrupted layer of 3-0 silk Lembert sutures (16).
16
Staple line oversewn
The esophagogastrostomy is performed with two layers of interrupted 3-0 silk
sutures. The site of the anastomosis on the stomach is placed down from the most
cephalad portion of the fundus and midway between the staple line and the greater
curvature on the anterior wall. The posterior outer layer of interrupted 3-0 silk
sutures is placed first (17). A gastrotomy is performed cutting out a 1- to
1.5-cm elliptical button of the stomach using electrocautery on low volt­age. The posterior wall of the esophagus is divided, preserving as much
of the mucosal layer as possible (18). The sutures of the inner layer of the posterior row pass through and through the full thickness of both the
gastric and esophageal walls (19).
Once the inner layer of the posterior row has been placed, the remain-
ing esophagus is divided and the specimen removed from the operative field.
At this point, frozen sections can be performed on both the proximal and distal
margins. The nasogastric tube is passed into the stomach. The inner layer of the ante-
Fundus
Neoplasm
Proximal esophagus
Distal esophagus
Outer layer of posterior row placed
17
Fundus
Oversewn staple line
rior row is performed with an interrupted inverting suture that passes from inside out on the
Outer layer of posterior row placed
Esophagogastrectomy: Separate Abdominal and Thoracic Incisioins 473
Inner layer of posterior row
esophageal wall, and then out­side in on the gastric wall (20). The anastomosis is completed by placing the outer layer of the anterior row with interrupted 3­0 silk Lembert sutures (21). The tip of the fundus is the most ischemic part of the conduit. To help minimize leaks in this area, a purse-string suture is placed cir­cumferentially (22), and once tied, the tip is inverted and the purse-string is secured (23).
Distal
Proximal
18 19
Outer layer of anterior row
Inner layer of anterior row
20
Tip of fundus inverted
22
21
23
474 Atlas of Gastrointestinal Surgery: Esophagus
The anastomosis can be wrapped either with a piece of parietal pleura based on a long pedicle or, alternatively, with any redundant stomach, like a Nissen fundoplication (24). Mediastinal lymph nodes are either sampled or a complete dissection performed. The stom­ach is sutured to the enlarged hiatus with interrupted 3-0 silk. A chest tube is inserted, and the incision closed in layers.
Fundoplication
Hiatus
Nasogastric tube
24
Esophagogastrectomy through a Left Thoracoabdominal Incision
Operative Indications
In contrast to the esophagogastrectomy (described in the previous section) performed through separate abdominal and tho­racic incisions, an esophagogastrectomy can be performed through one incision utilizing the thoracoabdominal approach. One has to be certain that the malignancy is confined to the area of the gastroesophageal junction. With this approach, the proximal extent of the esophageal resection is restricted by the aortic arch. If, however, after radiographic studies and endoscopic biopsies, it is certain that the neoplasm is confined to the distal esophagus without submucosal spread and without Barrett’s mucosa extending proximally, the thoracoabdominal incision can be used. This approach is perhaps best suited for gastric cancers near the gastroesophageal junction that extend up into the distal esophagus.
Operative Technique
The patient is placed in a left thoracotomy position, with the hips rotated back toward the table at a 45˚ angle, to provide access to the abdomen. The left pleural cavity is entered through the seventh or eighth interspace; the incision extends across the abdomen to a point midway between the xiphoid and umbili-
cus. If preoperative staging has left some uncertainty as to the resectability of the lesion, the abdominal portion of the incision can be made first; the abdomen is explored with the hand before deciding whether to open the entire thoracoab­dominal incision.
The costal cartilage is divided, removing a section of cartilage so that chon-
dritis is not a problem when the ribs are subsequently re-approximated.
476 Atlas of Gastrointestinal Surgery: Esophagus
Diaphragm viewed from above
Radial
incision
1a
Esophagus
Circumferential
incision
Left phrenic n.
Aorta
Inferior vena cava
1b
Once the chest and abdomen have been opened, it is necessary to divide the diaphragm in order to provide appropriate exposure to mobilize the colon. Whereas many surgeons divide the diaphragm radially (1a), extending the incision toward but not through the esophageal hiatus, fewer branches of the phrenic nerve are divided if the diaphragm is opened circum­ferentially (1b). When the latter is done, it is important to leave at least 3 cm of diaphragm attached to the chest wall, to facilitate approximation during closure.
Once the abdomen and chest have been opened, the esophagus in the chest is mobilized and encircled with a Penrose drain. The esophageal hiatus is dissected and widened, and the gastroesophageal junction, distal esophagus, and tumor are extensively mobilized. The left gastric vessels along the lesser curvature and the vasa brevia along the greater curvature are divided. The retroperitoneal portion of the fundus of the stomach and distal esophagus is mobilized. Through the abdom­inal incision the greater omentum is divided, leaving the right gastroepiploic vessels intact. The fundus is divided using the linear stapler, taking several applications. The line of division is chosen to ensure an adequate distal tumor margin of at least 5 cm. The staple line in the distal stomach is reinforced with an interrupted layer of 3-0 silk Lembert sutures (2). A pyloromyotomy or pyloroplasty is performed, as described in “Short Segment Colon Interposition for Benign Esophageal
Stricture” above.
The proximal fundus, gastroesophageal junction, distal esophagus, and tumor are retracted up through the hiatus into
the chest. The proximal stomach is also pulled through the hiatus into the chest (3).
Pyloroplasty
Stomach mobilized and divided
Esophagogastrectomy through a Left Thoracoabdominal Incision 477
Liver
Diaphragm retracted cephalad
Fundus
Heart
Staple line
reinforced
2
Tumor
Esophagus
Stomach pulled into chest
Diaphragm retracted caudad
3
Proximal fundus
Esophagus
Widened hiatus
478 Atlas of Gastrointestinal Surgery: Esophagus
Outer layer of
posterior row
Esophagus
4
Neoplasm
Proximal fundus
The esophagogastrostomy is performed with two layers of interrupted 3-0 silk. The site of the anasto­mosis on the stomach is placed down from the most cephalad portion of the fundus and midway between the staple line and the greater curvature on the ante­rior wall. The posterior outer layer of interrupted 3­0 silk sutures is placed first (4). A gastrotomy is performed, cutting out a 1- to 1.5-cm elliptical but­ton of the stomach using electrocautery on low volt­age. The posterior wall of the esophagus is divided, preserving as much of the mucosal layer as possible (5). The sutures of the inner layer of the posterior row pass through and through full thickness of both the gastric and esophageal walls (6).
5
Gastrotomy
Esophagotomy
Inner layer of posterior row
6
Specimen removed
Once the inner layer of the posterior row has been placed, the remaining esophagus is divided and the specimen removed from the operative field. At this point, frozen sections can be performed on both
Esophagogastrectomy through a Left Thoracoabdominal Incision 479
the proximal and distal margins. The nasogastric tube is passed into the stomach. The inner layer of the anterior row is performed with interrupted inverting sutures that pass from inside out on the esophageal wall, and then outside in on the gastric wall (7). The anastomosis is completed by placing the outer layer of the anterior row, with interrupted 3-0 silk Lembert sutures (8). A purse-string is placed cir­cumferentially around the tip of the fundus so that this potentially ischemic portion of the conduit can be inverted, and the purse-string is secured. Alternatively, if this portion of the conduit is well vascularized, it can be wrapped around the esophageal anastomosis creating a Nissen-type fun-
Inner layer of
anterior row
7
Outer layer of
anterior row
doplication. The stomach is tacked to the widened hiatus with 3-0 silk sutures. A feeding jejunostomy is placed as described in “Esophagogastrectomy: Separate Abdominal and Thoracic Incisions” above. A chest tube is placed, and the diaphragm and chest closed in layers.
8
Transhiatal Blunt Esophagectomy with Esophagogastrostomy
Operative Indications
Patients with neoplasms along the entire length of the esophagus (1) are candidates for transhiatal blunt esophagectomy with a cervical esophagogastrostomy, as long as the tumor does not extend into the mediastinum, pericardium, aorta or tra­chea, rendering blunt dissection not only impossible, but also dangerous. In addition, the procedure is not possible if the tumor extends so far onto the stomach that, after the resection, there is not enough stomach to reach into the neck for an anastomosis. The operative procedure is particularly well suited for patients who are not in ideal shape nutritionally, and/or have pulmonary disease. Such patients do not readily tolerate both an abdominal and thoracic incision. The operation is done through an abdominal and a cervical incision, thus obviating the need for a thoracotomy. Added advantages of transhiatal blunt esophagectomy over the standard esophageal resection, done through a thoracoabdominal or separate abdominal and thoracic incisions, are that single lung isolation is not required and that the anastomosis is done in the neck. Thus a leak is not nearly as cata­strophic as if the anastomosis had been performed in the chest. If mediastinal involvement is evident on CT scan or if tracheal/bronchial involvement is evident on CT scan or endoscopy, blunt esophagectomy should not be performed. Patients with benign esophageal disease are also candidates for transhiatal blunt esophagectomy. Many surgeons, however, prefer to reconstruct the esophagus with a long segment of colon when the esophagectomy is done for benign disease.
1
Tumor
Transhiatal Blunt Esophagectomy with Esophagogastrostomy 481
Operative Technique
The patient is placed in the supine position. The abdomen, anterior chest, and left neck are prepped and draped appropriately, with the head turned to the right. The abdomen is opened first through an upper midline incision. The initial part of this pro­cedure is identical to that of esophagogastrectomy done through separate abdominal and chest incisions. The abdomen is explored to be certain that widely disseminated tumor is not present, thus obviating the indication for esophagectomy.
The intra-abdominal esophagus is mobilized, and the esophageal hiatus dilated.
The vasa brevia are ligated and divided (2). Clips are avoided on the stomach
because they may come off when the stomach is subsequently advanced through the
Neoplasm
Esophageal hiatus dilated
posterior mediastinum. The greater omentum is divided, carefully preserving
the right gastroepiploic vessels and the entire gastroepiploic arch. The
2
gastrohepatic ligament is divided, and the left gastric vessels are
dissected free both anteriorly and posteriorly through the lesser
sac. The left gastric vessels are ligated close to their takeoff
Vasa brevia divided
from the celiac axis and divided (3).
3
Stomach reflected cephalad
Left gastric vessels divided
Greater omentum divided preserving gastroepiploic arch