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392 Atlas of Gastrointestinal Surgery: Esophagus
Liver
retracted
Vasa brevia divided
1
A measurement is made 16 cm cau­dal to the xiphoid process and 3 to 4 cm to the left of midline for insertion of the laparoscope. An auxiliary 5-mm port is placed for retraction of the left lateral segment of the liver. This is generally placed in the anterior axillary line at the right costal margin. Two prime operative ports are placed fairly high along each costal margin on the right and left side.
Stomach
Spleen
Finally, an additional working laparoscopic port is placed in the ante­rior axillary line slightly below the left costal margin.
Initially, the abdomen is explored for other pathology. Then, with the left later­al segment of the liver retracted in a cephalad direction, the lesser sac is entered by dividing the vasa brevia from the mid-greater curvature of the stomach towards the hiatus (1). As this dissection progresses, the structures of the retroperitoneum can be visualized in the lesser sac (pancreas, hilum of the spleen, and splenic artery). As the dissection progresses, the vasa brevia become ever shorter. At the superior pole of the spleen they often can be quite short, making this dissection difficult. Often the final few vessels are divided adjacent to and close to the splenic capsule. Retraction forces during this portion of the procedure must be carefully applied, as tearing of the splenic capsule can cause problematic bleeding. Once the last few vessels at the superior pole of the spleen are divided, the spleen falls away to the patient’s left revealing the left crus of the diaphragm (2).
Anterior vagus n.
Laparoscopic Nissen Fundoplication 393
Left cras
Esophagus retracted medially
Divided vasa brevia
Spleen
Posterior stomach
2
At this point, the angle of His, the gastroe­sophageal junction, and the distal esophagus are carefully dissected free. The surgeon begins this retro-esophageal dissection from the left-hand side. The more that can be safely accomplished from this side during this portion of the procedure, the easier the dissection will subsequently
Gastrohepatic ligament divided
be when dissecting from the right.
Next, the lesser sac is opened from the right by divid­ing the filmy gastrohepatic liga­ment with the hook cautery (3). This is initiated in a clear spot where the tissue can be
Stomach
3
Caudate lobe
safely divided.
394 Atlas of Gastrointestinal Surgery: Esophagus
Retraction of the stomach to the left reveals the caudate lobe of the liver, the right crus of the diaphragm, and the posterior esophagus. The anterior (left) vagus nerve and its branches are often visible at this juncture. Care must be taken during this dissection to avoid inadvertent division of a replaced left hepatic artery. When this anomaly occurs (4), the primary arterial blood flow to the left lobe of the liver traverses this tissue.
The dissection is carried from this point ante­riorly to release the anterior esophageal tissue from the arch of the crus. The anterior vagus nerve can be seen at this point, usually direct­ly on the surface of the anterior esophagus. As the dissection is continued posteriorly (5), the stomach is lifted in an anterior direction. Dissecting only tissue that is filmy and safe, the surgeon can work posterior to the gastroe­sophageal junction and completely encircle it by con­necting to the dissection previously performed along the left side of the esophagus.
Replaced left hepatic a.
4
Anterior vagus n.
R. and l. crura
Stomach lifted anteriorly
Connection to previous dissectioin
5
An umbilical tape or Penrose drain is placed around the gastroesophageal junction (6) and locked with an endoloop. This provides a handle for retraction of the gastroe-
Laparoscopic Nissen Fundoplication 395
sophageal junction in all directions (7). This dissec­tion also allows the surgeon to clearly identify the anterior and posterior vagus nerves and to mobi­lize a significant length of intra-abdominal esoph­agus (5 to 7 cm).
With the gastroesophageal junction isolated and elevated, both the right and left crura should be visible behind the stomach, looking from the patient’s right side toward the left. Tissue around the crura is carefully dissected away revealing the point where the crura come togeth­er. Care must be taken with this dissection, as the aorta is immediately deep to the crura. The gas­troesophageal junction is then retracted to the patient’s left, and the laparoscope moved to the
Esophagus encircled
6
R. and l. crura
patient’s right. The angulation of the scope is adjusted so that the view is from the left. From this perspective, the left crus is further dissected away from the esophagus (7), creating additional intra­abdominal length.
Esophagus
7
Aorta
Left crus
Stomach
396 Atlas of Gastrointestinal Surgery: Esophagus
Crural closure
The next objective is closure of the crura. Many surgeons
advocate the placement of a sizer passed by the anesthe-
siologist, either an inflatable orogastric tube or a
Maloney dilator, within the esophagus to help
judge how tightly the diaphragmatic crura
should be closed. Teflon pledgets are usu-
ally used to buttress the crural closure
(8). The sutures are placed laparo-
scopically and tied either intracorpo-
really or extracorporeally. With the
sizer in place, the crura are approx-
imated until closed snugly around the esophagus. One should check
the adequacy of the crural closure
by visualizing the amount of space
anterior to the esophagus and the arch
8
of the crura. If there is too much space,
another stitch should be placed. If the
anterior esophagus is impinged by the arch
of the crura, the closure is too tight.
With the crural closure accomplished, the wrap is
Posterior fundus
constructed. The gastroesophageal junction is once
again retracted anteriorly and an atraumatic
grasper is carefully placed behind the esoph-
Esophagus
Closed crura
agus from left to right. The posterior fundus
is then grasped, and pulled posterior to
the esophagus (9). This should be car-
ried out under direct vision by placing the angled telescope behind the gastroe-
sophageal junction to view the posterior
fundus. In some obese individuals, this can
be very difficult. In these circumstances, the
fundus can be “pushed” from the left side to
the right side, or a suture can be placed in the
9
posterior fundus on the left side which is then passed posterior and used to pull the posterior fundus around to the patient’s right side. With the posterior fundus in position, a spot on the anterior fundus on the patient’s left is chosen, which will create an appropriately floppy esophageal wrap.
With the posterior fundus on the right of the esophagus and the anterior fundus on the left, each held by atraumatic graspers, the wrap is “rocked” back and forth to be sure it is not twisted, or too
Laparoscopic Nissen Fundoplication 397
tight, or too loose.
The sutures are then placed, with pledgets. Each bite also includes a superficial bite of anteri­or esophagus to help avoid “slipping” of the fun­doplication (10). Usually the fundoplication is constructed with three or four stitches, each approximately 1 cm apart, to create a wrap 3 to 5 cm in length (11). Following construction of the wrap, the sizer is removed from the esophagus. The abdomen is examined laparoscopically for bleeding, tissue injury, or other problems, prior to removal of trocars and closure of port sites.
10
Crural closure
Completed Nissen fundoplcation
11
Toupet Fundoplication: Open and Laparoscopic
Operative Indications
The Toupet procedure was proposed in 1963 when the Nissen fundoplication was emerging as the preferred approach for the surgical treatment of gastroesophageal reflux. Indications and evaluation are similar to that for any antireflux proce­dure, however, most feel that the Toupet method should be reserved for those patients with weak esophageal motility to avoid postoperative dysphagia since the wrap is only 270˚ rather than circumferential.
Operative Technique
Open Technique
The preparation, position and exposure are similar to that described previously for the Nissen fundoplication. The procedure is performed through an upper midline incision and can be broken down into three main steps. The first is reduction of the hiatal her­nia and mobilization of the abdominal esophagus. Similar to the Nissen, the esophageal hiatus is exposed by dividing the left triangular ligament of the liver with electrocautery, and dividing the peritoneum overlying the esophagus. The diaphragmatic crura are mobi-
lized away from the esophagus, and a long right-angle clamp is used to pass a Penrose drain around the back side of the distal esophagus to facilitate downward retraction. The esophagogastric junction is inspected and the two vagus nerves identified.
The second step involves mobilization of the posterior fundus. This is performed in the same fashion as for the Nissen fundoplication. The important maneuver is to expose the inferior aspect of both diaphragmatic crura. The mobilization is completed by dividing the phrenogastric ligament. The preaortic adhesions between the peritoneal fold of the left gastric
Toupet Fundoplication: Open and Laparoscopic 399
artery and the inferior aspect of the esophageal hiatus fixing the fundus are divided with great care. By doing so, the pos­terior aspect of the fundus can be pulled behind the esophagus.
The final step is the esophagogastroplasty with phrenogastropexy. The posterior aspect of the fundus is pulled behind the esophagus carefully with a Babcock clamp or pushed manually from the patient’s left to right. The vagus nerves are identified, taking care not to incorporate them in the sutures. The fundus is fixed first to the right border of the esophagus with interrupted 2-0 silk sutures (1). The fundus is then fixed to the right crus of the diaphragm with four or five sutures. The superior suture incorporates the esophagus, the fundus, and the crus. The lowest suture fixes the fundus to the aortic fibrous orifice and should be placed without tension (2).
Anterior vagus n.
Posterior fundus sutured to right border of espohagus
1
Fundus sutured to right crus
2
400 Atlas of Gastrointestinal Surgery: Esophagus
This same technique is used on the left side with the same number of sutures approximating the fundus to the left crus of the diaphragm (3), starting with the inferior suture. Then the left border of the esophagus is attached to the fundus (4). The procedure is completed by suturing the superior aspect of the fundus to the phrenoesophageal membrane. The enlarged esophageal hiatus can be closed with 0-silk sutures on a large Ferguson needle over a 46 French Maloney dila­tor and nasogastric tube, as with the Nissen fundoplication.
Fundus sutured to left crus
3
Completed Toupet fundoplication
Dilator
NG tube
4
Toupet Fundoplication: Open and Laparoscopic 401
Laparoscopic Technique
The patient is placed in the prone position with arms on arm boards. The appropriate site for the camera port is approximately 16 cm caudal to the xiphoid process and 3 to 4 cm to the left of the patient’s midline. With a 30˚ angled laparoscope, this posi­tion affords the best opportunity to view the esophagus from both sides and from behind when necessary. In order to obtain such a position, the site can be accessed directly using the Hasson technique. Alternatively, a simple stab just above the umbili­cus can be used to place a Veress needle carefully at the umbilicus, which is the safest spot for blind placement of the Veress needle. Once the abdomen is insufflated, the
patient is placed in a fairly steep reverse Trendelenburg’s position. It is important to make the appropriate measurements and mark potential port sites after this has been accomplished because the abdominal dimensions change, and the surface anatomy is altered relative to bony structures.
A measurement is made 16 cm caudal to the xiphoid process and 3 to 4 cm to the left of midline for insertion of the laparoscope. An auxiliary 5-mm port for retraction of the left lateral segment of the liver is generally placed in the anteri­or axillary line at the right costal margin. Two prime operative ports are placed fairly high along each costal margin on the right and left side. Finally, an additional working laparoscopic port is placed in the anterior axillary line slightly below the left costal margin.
Initially, the abdomen is explored for other pathology. The left lobe of the liver is lifted anteriorly to expose the esophageal hiatus. The gastrohepatic ligament is divided using electrocautery. Any hiatal hernia is reduced with downward traction after incising the peritoneal covering. The right crus of the diaphragm is identified and dissected down to its confluence with the left crus. Using blunt dissection, a space posterior to the esophagus is created. The esophagus is encircled with a Penrose drain, retracted downward and further mobilized to allow a 3- to 4-cm segment of intra-abdominal esophagus.
The enlarged esophageal hiatus can be closed with 0 silk. A 46 French Maloney dilator and nasogastric tube within the esophagus help judge how tightly the diaphragmatic crura should be closed. Teflon pledgets are usually used to but­tress the crural closure. The sutures are placed laparoscopically and tied either intracorporeally or extracorporeally.