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Right gastric vessels
Right gastroepiploic vessels
6
Gastrohepatic ligament
7
Pyloric vein
Right gastroepiploic vessels
Diaphragm
Right
8
gastric vessels
9
Triangular ligament
Line of incision
Gastrohepatic ligament
Branch of inferior phrenic vessels
Right gastroepiploic vessels
10
Line of incision
Diaphragm
Spleen
83
PLATE
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33
DETAILS OF PROCEDURE  e peritoneum over the esopha-
gus is divided and all bleeding points are carefully ligated. Several small vessels may require ligation when the peritoneum between the gastric fun­dus and base of the diaphragm is separated.  e lower esophagus is freed by  nger dissection similar to the technique of vagotomy (Plates  and ).  e vagus nerves are divided to further mobilize the esophagus into the peritoneal cavity. By blunt and sharp dissection, the le gastric vessels are isolated from adjacent tissues (figure 11).  ese vessels should be encircled with the surgeon’s index  nger and carefully palpated for evidence of meta­static lymph nodes. A pair of clamps, such as curved half-lengths, should be applied as close as possible to the point of origin of the le gastric artery, and a third clamp applied nearer the gastric wall.  e contents of these clamps are  rst ligated and then trans xed distally. Likewise, the le gastric vessels on the lesser curvature should be ligated to enhance the subsequent exposure of the esophagogastric junction. Depending on the location of the tumor and the  ndings on palpation, the surgeon may decide upon further celiac and preaortic lymph node dissection.
When the tumor is near the greater curvature in the midportion of the stomach, it may be desirable to remove the spleen and tail of the pancreas to assure a block dissection of the immediate regional lymphatic drain­age zone.  e location and extent of the tumor, as well as the presence or absence of adhesions or tears in the capsule, determine whether the spleen should be removed. If the spleen is to remain, the gastroplenic ligament is divided, as described for splenectomy (Plates  and ).  e le gas­troepiploic vessel is doubly tied.  e greater curvature is freed up to the esophagus. Several vessels are usually encountered entering the posterior wall of the fundus near the greater curvature.
 e anesthetist should aspirate the gastric contents from time to time to prevent possible regurgitation from the stomach as it is retracted upward, as well as peritoneal soiling when the esophagus is divided.
 e duodenum is closed in two layers (see Plate ).  e walls of the duodenum are closed with a  rst layer of interrupted  silk sutures, Connell type.  ese are invaginated with a second layer of  silk mattress sutures. Some prefer to close with staples.
One of the numerous methods that have been devised for reconstructing gastrointestinal continuity following total gastrectomy is selected.
 e surgeon should keep in mind certain anatomic di erences of the esophagus, which make its management more di cult than that of the rest
T G
of the gastrointestinal tract. First, since the esophagus is not covered by serosa, the longitudinal and circular muscle layers tend to tear when sutured. Second, the esophagus, while at  rst appearing to extend well down into the abdominal cavity, tends to retract up into the thorax when divided from the stomach, leaving the surgeon hard pressed for adequate length. It should be mentioned, however, that if the exposure is inadequate, the surgeon should not hesitate to remove more of the xiphoid or to split the sternum with potential extension into the le fourth intercostal space. Adequate and free exposure must be obtained to secure a safe anastomosis.
 e wall of the esophagus can be lightly anchored to the crus of the dia­phragm on both sides, as well as anteriorly and posteriorly (figure 12), to prevent rotation of the esophagus or upward retraction.  ese sutures must not enter the lumen of the esophagus. Two or three  silk sutures are placed posterior to the esophagus to approximate the crus of the diaphragm (figure 12).
Many methods have been devised for facilitating the esophagojejunal anastomosis. Some prefer to leave the stomach attached as a retractor until the posterior layers have been completed.  e posterior wall of the esoph­agus may be divided and the posterior layers closed before the stomach is removed by dividing the anterior esophageal wall. In another method a non-crushing vascular clamp of the modi ed Pace-Potts type can be applied to the esophagus. Because the esophageal wall tends to tear easily, it is helpful to give substance to the wall of the esophagus and prevent fray­ing of the muscle layers by  xing the mucosa to the muscle coats proximal to the point of division. A series of encircling mattress sutures of  silk can be inserted and tied, using a surgeon’s knot (figure 13).  ese sutures include the full thickness of the esophagus (figure 14).  e angle sutures, A and B, are used to prevent rotation of the esophagus when it is anchored to the jejunum (figure 14).
 e esophagus is then divided between this suture line and the gastric wall itself (figure 15). Soiling should be prevented by suction on the Levin tube as it is withdrawn up into the lower esophagus and a clamp is placed across the esophagus on the gastric side. In the presence of a very high tumor that reaches the gastroesophageal junction, several centime­ters of esophagus should be resected above the tumor. If . cm or more of esophagus does not protrude beyond the crus of the diaphragm, the lower mediastinum should be exposed in order to ensure a secure anas­tomosis without tension.
CONTINUES
84
11
Left gastric vessels
Tumor
12
Esophagus
Anchoring sutures
Pancreas
Stump of left gastric vessels
13
Pancreas
Anchoring sutures
Esophagus
A
B
Right crus of diaphragm
15
Muscles layers
A
Mucosa
14
B
A
Traction sutures
Levin tube
B
85
PLATE
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34
DETAILS OF PROCEDURE  e next step consists of mobiliz-
ing a long loop of jejunum, redundant enough so that it extends easily to the open esophagus.  e jejunal loop is brought up through an opening in the mesocolon just to the le of the middle colic vessels.  e region about the ligament of Treitz may need to be mobilized to ensure that the jejunum will reach to the diaphragm for easy approximation with the esophagus.  e surgeon should be sure that the mesentery is truly adequate for the completion of all the layers of the anastomosis.
Various methods have been used to assure better postoperative nutrition and fewer symptoms following the complete removal of the stomach. A large loop of jejunum with an enteroenterostomy has been commonly used. Regurgitation esophagitis may be lessened by the Roux-en-Y procedure. Interposition of jejunal segments between the esophagus and duodenum, including reversed short segments, has been found to be very satisfactory.
 e Roux-en-Y procedure can be used a er division of the jejunum at approximately  cm beyond the ligament of Treitz. With the jejunum held outside the abdomen, the arcades of blood vessels can be more clearly de ned by transillumination with a portable light (figure 16). Two or more arcades of blood vessels are divided and a short segment of devas­cularized intestine resected (figure 17).  e arm of the distal segment of jejunum is passed through the opening made in the mesocolon to the le of the middle colic vessels. Additional mesentery is divided if the end segment of the jejunum does not easily extend up to and parallel with the crus of
T G
the diaphragm behind the esophagus. When the adequate length has been assured, the decision must be made whether it is safer and easier to do an end-to-end anastomosis or an end to-side anastomosis with the esophagus. If the end-to-side anastomosis is selected, the end of the jejunum is closed with two layers of  silk (figures 18 and 19).  e end of the jejunum is then pulled through the opening made in the mesocolon to the le of the middle colic vessels (figure 20). Care must be taken to avoid angulat­ing or twisting the mesentery of the jejunum as it is pulled through.  e jejunal wall is anchored about the margins of the hole in the mesocolon. All openings in the mesocolon should be occluded to avoid the possibility of an internal hernia.  e opening created beneath the free margin of the mesentery and the posterior parietes should be obliterated by interrupted sutures placed super cially, avoiding injury to blood vessels.
 e length of jejunum should again be tested to make certain that the mesenteric border can be approximated easily for  to  cm or more to the base of the diaphragm behind the esophagus (figure 21). Additional mobilization of the jejunal limb for a distance of  or  cm may be secured by making relaxing incisions in the posterior parietal peritoneum around the base of the mesentery. Additional distance may be gained by very care­fully incising the peritoneum both above and below the vascular arcade along with a few short radial incisions toward the mesenteric border.  e closed end of the jejunum is shown directed to the right, but more com­monly it is directed toward the le .
CONTINUES
86
16
17
X
Line of incision
Y
Jejunum
Y
X
Ligament of Treitz
20
18
Colon
Opening of mesocolon
19
Jejunum
21
B
A
Crus of diaphragm
Middle colic vessels
Y
Pancreas
Middle colic vessels
87
PLATE
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35
DETAILS OF PROCEDURE A row of interrupted  silk sutures
is placed to approximate the jejunum to the diaphragm on either side of the esophagus, as well as directly behind it (figure 22). It is necessary to empha­size that the arm of jejunum is anchored to the diaphragm to remove ten­sion from the subsequent anastomosis of the esophagus. A er these anchor sutures are tied, angle sutures are placed in either side of the esophagus and jejunum (figure 23, C, D).  e esophageal wall should be anchored to the upper side of the jejunum. An e ort should be made to keep the interrupted sutures close to the mesenteric side of the jejunum, since there is a tendency to use all the presenting surface of the jejunum in the subsequent layers of closure.  ree or four additional interrupted  silk mattress sutures, which include a bite of the esophageal wall with the serosa of the bowel, are required to complete the closure between the angle sutures, C and D (figure 24). A small opening is then made into the adjacent bowel wall with the jejunum under traction so that during the procedure there is no redundancy of the
T G
mucosa from too large an incision.  ere is a tendency to make too large an opening in the jejunum with prolapse and irregularity of the mucosa, making an accurate anastomosis with the mucosa of the esophagus rather di cult. A layer of interrupted  silk sutures is used to close the mucosal layer, starting at either end of the jejunal incision with angle sutures (figure 25, E, F).  e posterior mucosal layer is closed with a row of interrupted  silk sutures (figure 26).  e Levin tube may be directed downward into the jejunum (figure 27).  e presence of the tube within the lumen tends to facilitate the placement of the interrupted Connell-type sutures closing the anterior mucosal layer (figure 27). A larger lumen is ensured if the Levin tube is replaced by an Ewald tube of a much larger diameter.  is tube is replaced by the Levin tube when the anastomosis is completed. An additional layer will be added as carried out posteriorly.  erefore, when the jejunum is anchored to the diaphragm, the wall of the esophagus, and the mucosa of the esophagus, a three-layered closure is provided (figure 28).
CONTINUES
88
23
A
B
25
22
Second row
A
B
Diaphragm
Posterior row of sutures
of sutures
C
Incision
D
Jejunum
24
D
Incision
Third row of sutures
B
26
F
D
C
A
E
C
A
E
D
B
F
Lumen of jejunum
27
Levin tube
jejunum
89
28
1
3
2
Diaphragm
PLATE
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36
DETAILS OF PROCEDURE  e second layer of interrupted
 silk sutures is completed anteriorly (figure 29). Next, the peritoneum, which has been initially incised to divide the vagus nerve and mobilize the esophagus, is brought down to cover the anastomosis and anchored with interrupted  silk sutures to the jejunum (figure 30).  is ensures a third layer of support that extends all the way anteriorly around the esopha­geal anastomosis and takes any tension o the delicate line of anastomosis (figure 31).  e catheter can be extended well down the jejunum through the opening in the mesocolon to prevent angulation of the bowel. A number of super cially placed  ne sutures are taken to anchor the edge of the mes­entery to the posterior parietes to prevent angulation and interference with the blood supply (figure 31).  ese sutures should not include pancreatic tissues or vessels in the margin of the jejunal mesentery.  e color of the arm of the jejunum should be checked from time to time to make sure the blood supply is adequate.  e open end of the proximal jejunum (figure 32, Y) is then anastomosed at an appropriate point in the jejunum (figure 32, X) with two layers of  silk, and the opening into the mesentery beneath the anastomosis is closed with interrupted sutures to prevent any possibility of subsequent herniation. figure 32a is a diagram of the completed Roux- en-Y anastomosis. Some prefer to use a stapling instrument to fashion the esophagojejunal anastomosis. Regardless of the technique used, consider­ation should be given to reinforcing the angles with interrupted sutures, as well as anastomosing the jejunum to the adjacent diaphragm.
POSTOPERATIVE CARE Constant suction is maintained through the
nasojejunal tube, which has been threaded through and beyond the anas­tomosis. During this period alimentation is maintained with intravenous  uids and supplemental vitamins.  e patient is ambulated on the  rst postoperative day, and a gradual increase in activity is encouraged. Early
T G
return of peristaltic activity to the bowels may be stimulated by injecting  mL of mineral oil through the jejunal tube at regular intervals during the  rst few postoperative days. When intestinal peristalsis has been estab­lished, the suction may be discontinued. A slow administration of feedings low in fat and carbohydrate content will avoid diarrhea. Usually, only water followed by skim milk is given in - to -mL amounts as tolerated. Oral feedings can be instituted as soon as there is complete assurance that no  stula has formed at the sites of anastomosis.  is may be veri ed by  uo­roscopic x-ray studies using a water-soluble contrast dye.  ese patients, of course, will need frequent small feedings, and adequate caloric intake will be a problem.  e family will require instructions regarding diet.  is calls for careful collaboration between surgeon and dietitian. In addition, supplemental vitamin B and vitamins may be indicated for life.
Scheduled reevaluations at intervals of  to  months are advisable to assess caloric intake. Stenosis of the suture line may require dilatations.  e blood volume may need to be restored and numerous dietary corrections made.
When total gastrectomy has been performed to control the hormonal e ects of an islet cell tumor of the pancreas, serum gastrin levels are taken to evaluate the presence and progress of residual tumor or metastasis. Blood calcium levels are also advised to document the status of the parathy­roids.  e possibility of familial multiple endocrine adenomatosis should be investigated in all members of the patient’s family. Long-term follow-up studies should include determination of serial serum gastrin, calcium, parathormone, prolactin, cortisol, and catecholamine levels. Evidence of recurrent hyper-parathyroidism is not uncommon. Normal fasting serum gastrin levels may become elevated if residual gastrin-producing tumor is present.  e presence of one endocrine tumor is an indication to search for others over the years of follow-up observation.
will be necessary at monthly intervals. Oral iron

90
Peritoneum
29
Esophagus
Peritoneum
Transverse mesocolon
Middle colic vessels
30
32
Diaphragm
Jejunum
Roux-en-Y anastomosis
Closed duodenum
31
Diaphragm
Ligament of Treitz
Closure of mesocolon
32a
Duodenum
Esophagus
Jejunum
91
PLATE
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37
INDICATIONS  e indications and preoperative preparation are speci c
and are reviewed in Total Gastrectomy, Plate , where the commonly used methods of reconstruction are shown with hand-sewn anastomoses. Many surgeons, however, prefer to use staples, because they simplify the anasto­moses and lessen the total time of this operation, which is now more fre­quently performed.
ANESTHESIA General anesthesia is given by endotracheal intubation.
POSITION Exposure is enhanced if the patient is placed in a reversed
Trendelenburg position.
OPERATIVE PREPARATION  e skin over the lower thorax as well as the
abdomen is shaved and cleansed with the appropriate antiseptic solution.
INCISION AND EXPOSURE A minimally invasive laparoscopic peritone-
oscopy is o en performed  rst to rule out inoperable spread of a malig­nancy. If this is clear, then a midline incision starting over the xiphoid and extending down to the umbilicus is made initially.  is permits abdominal exploration and enables the surgeon to make a decision for or against pro­ceeding with total gastrectomy.  e incision is usually extended to the le and below the umbilicus if the decision is made to proceed with total gas­trectomy. In the absence of metastases to the liver, peritoneum, omentum, and pelvis, the greater omentum is completely freed from the transverse colon.  is permits evaluation of the posterior wall of the stomach as well as an evaluation for metastases about the le gastric vessels and attach­ments to the pancreas. Excision of the xiphoid provides a better exposure of the esophagogastric junction, along with medial mobilization of the le lobe of the liver following the division of the suspensory ligament to this lobe. An outline of a  nal reconstruction is shown in figure 1.
DETAILS OF PROCEDURE As in Plates  and , the region of the duode-
num is  rst mobilized by the Kocher maneuver, and the blood supply about the pylorus ligated to prepare only the duodenal wall for the application of the stapler.  e right gastroepigastric vessels are doubly ligated as far away from the duodenal wall as possible to ensure the inclusion of any possible lymph node metastases.  e right gastric blood supply to the superior surface of the duodenum should also be divided and ligated to ensure the removal of . to  cm of duodenum distal to the pyloric vein if the procedure is being performed for gastric carcinoma.  e duodenum is closed with a non cutting linear stapler (TA  or ).  e duodenum is divided between the stapler and the Kocher clamp on the pyloric end of the duodenum. Alternatively the duo­denum may be divided with a linear stapler.  e entire stomach, along with the omentum and the gastric hepatic ligament, is then mobilized as shown in
T G, S
Plates  and .  e gastric vessels are divided and ligated in the presence of cancer of the fundus of the stomach.  e spleen may also be resected, but this is indicated only if the spleen is involved with local spread of the tumor.
A good clear exposure of the lower esophagus is essential, along with the margins of the esophageal hiatus. Since the esophagus tends to retract upward when divided, it is helpful if the esophagus is pulled gently down­ward a er vagotomy and anchored to the margins of the hiatus with four or  ve interrupted sutures that include only a modest bite of the esophageal wall (figure 2).  is ensures  or  cm of nonretractable esophagus below the hiatal opening.  e crus of the diaphragm should be approximated pos­terior to the esophagus, allowing a reasonable-sized opening.
 e nasogastric tube is retracted, and the modi ed Furniss clamp is applied to the esophagus above the gastric junction (figure 2).  e esopha­gus is divided against the clamp a er a mono lament polypropylene suture on a straight needle has been inserted.  is resection line must be close to the clamp to ensure a safe and secure closure by the stapler. It is also accept­able to divide the esophagus and place a purse string freehand.  e jejunum about  cm below the ligament of Treitz is exposed, and the blood supply in the mesentery studied to ensure a good blood supply to the mobilized arm of jejunum, which should be  to  cm long.  e division of the jejunum and mesenteric blood vessels is demonstrated in figures 16 and 17 in Plate .
 e divided jejunum is brought up through an opening in the avascu­lar area to the le of the middle colic vessel. Special attention is required to avoid twisting the section of jejunum or in any way interfering with its blood supply.  e jejunum is anchored to the margin of the opening, which must be closed to avoid internal herniation.  e limb must extend easily up to the end of the esophagus as well as  to  cm beyond to provide entrance for the stapler to e ect the esophagojejunal anastomosis (figure 3).
 e blood supply to the end of the jejunal limb is recon rmed to be strong and adequate.  e esophageal size is measured (figure 4) with a calibrated sizing instrument. Some prefer to dilate the end of the esophagus by inserting a Foley catheter (size  French) into the lower esophagus and injecting  to  cm of saline, which gently dilates the end of the esopha­gus for the easier introduction of the anvil of the stapler.  is may permit the introduction of a larger stapler.  e appropriately sized circular sta­pler (EEA) instrument is passed through the open end of the jejunum and directed toward the antimesenteric surface.  e sharp plastic trocar on the end of the circular stapler (EEA) instrument is passed through the antimes­enteric surface of the small intestine.  e tilting anvil is inserted through the opening made by the trocar and attached to the main portion of the circular stapler (EEA) instrument.  e tilted circular stapler (EEA) cap is then carefully introduced into the esophagus (figure 5).
CONTINUES
92
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