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464 The uncut Collis-Nissen procedure
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Removal of the gastroesophageal fat pad
The gastroesophageal fat pad is divided in the midline
6
and removed, with the division proceeding cephalad from the stomach to the gastroesophageal junction and esophagus. Both vagal trunks should be carefully preserved. The trunks may be visualized and palpated, but at no time should they be put in jeopardy. The remaining fatty tissue, including the vagus nerves, is allowed to retract and will be included within the wrap. Meticulous cauterization or liga­tion of multiple gastric nutrient vessels is required to avoid formation of a hematoma. This maneuver clears a portion of the gastric serosa and gastroesophageal junction for the later steps of the operation and exposes sound tissue in which to place the fundoplication sutures.
6
7a
Uncut Collis gastroplasty
A 50-Fr Maloney dilator is passed by mouth
7a,b
stomach, for use as a mandrel about which an uncut tubular extension of the esophagus will be fashioned from the lesser curvature of the stomach. This is accurately and simply achieved by applying a TA 30 stapler using 4.8-mm staples to the stomach at the angle of His, parallel to the lesser curvature of the stomach and the indwelling dilator. Because the align­ment pin is not used in this application, special care should be taken to ensure that the staples and crimping anvil are accu­rately aligned.
through the gastroesophageal junction into the
7b
Nissen fundoplication
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After the staples have been placed and the
8a,b
lized fundus is imbricated 360 degrees around the 30-mm uncut Collis gastroplasty tube or neo-esophagus, following the technique developed by Nissen. The wrap is fashioned loosely with the dilator in place and is maintained with one row of interrupted seromuscular 2/0 silk sutures, which ini­tially approximate the fundus to the Collis gastroplasty tube over a 2-cm length. A second, outer row of 3/0 silk is used to reinforce these sutures, going from stomach to stomach. The vagi are located within the fundal wrap in their normal posi­tion. At each step of the procedure injury to these nerves must be avoided – accidental vagotomy is the most common cause of ‘gas bloat’ syndrome in the postoperative period. It is note­worthy that the fundoplication, as described, avoids placing sutures near the vagal trunks: the anchoring sutures for the plication are all on the stomach, not the esophagus. The pur­pose of the uncut staple line is to establish a frenula that will prevent the neo-esophagus from telescoping out of the fun­doplication and to reduce tension.
stapling device removed, the previously mobi-
Operation 465
8a
8b
466 The uncut Collis-Nissen procedure
Pericardium
Esophagus
Anchoring suture
Dilator
Crural suture
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Reduction of the wrap and closure of the hiatus
Once the fundoplication is complete, the
9a–c
diaphragm and is held in place with three interrupted hori­zontal mattress sutures of 2/0 polypropylene (Johnsrud sutures). These sutures catch the esophagus just above the gastroesophageal junction, passing through the stomach and underneath the crus and diaphragm. These sutures cover 270 degrees, beginning medially at the level of the last posterior crural suture at the insertion of the pericardium. The second suture should be positioned halfway between the first and third sutures. The final suture should be placed at the last suture of the left or anterior crus. The wrap is then reduced with the dilator in place, and the anchoring Johnsrud sutures are tied and divided. The crural sutures are then tied and divided; the surgeon works from the aorta to the peri­cardium, ensuring that there is one finger’s breadth posteri­orly between the esophagus and the crus with each suture tied. If the last suture is too tight, one throw (or an entire suture) should be removed to allow adequate space posteri­orly. This ensures a hiatus large enough to prevent dysphagia. At this stage the dilator is removed and a nasogastric tube is passed into the stomach. Hemostasis is secured, a chest tube is placed, and the incision is closed in the usual manner.
reconstructed area is reduced below the
9a
9b
9c
Further reading 467
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POSTOPERATIVE CARE
The morning after the day of the operation, the nasogastric tubes may be removed. Oral feeding may begin safely on the next day and progresses from a liquid to a general diet during the next 2–3 days. Chest tubes are removed once drainage has reduced to less than 250 mL. Total hospitalization time is approximately 6 days.
Complications
Minor leakage from any site is usually asymptomatic, local­ized, and confined. If leakage is suspected, a fluoroscopic study should be performed using a water-soluble medium (Gastrografin). If a leak is observed, chest and nasogastric tubes should remain in place for 5–7 days. After this period, repeat radiographical examination almost invariably shows that the leaks have sealed completely. Oral feeding may be resumed safely after tapering off parenteral feeding and removing all the drainage tubes.
OUTCOMES
The results of the uncut Collis–Nissen procedure have been described extensively in the literature by the authors and their colleagues. Mortality has been extremely low. The reports by Piehler et al (1984), Allen et al (1993), and Deschamps et al (1997) collectively reported on 300 patients who had the transthoracic uncut Collis–Nissen procedure with no opera­tive deaths. Trastek et al in 1998 reported on the first 100 con­secutive patients undergoing primary uncut Collis–Nissen procedure by one surgeon. In that series, there were two post­operative deaths (2%) both cardiac in origin and both occur­ring in the first 25 patients. Morbidity remains acceptable and consistent: Piehler (29%), Allen (30.8%), and Trastek (23%). Similar to so many procedures, Trastek et al (1998) demon­strated a learning curve with the uncut Collis–Nissen proce­dure. In the first 25 patients there were 10 complications (40%) compared with 13 complications (17%) in the next 75 patients (p = 0.03). The leak rate in our series ranged from 0% to 3.9%, with most being contained and never requiring further treatment.
While complete objective follow-up is the gold standard, we at Belsey feel that the patients remain the most sensitive tool for assessing the late results of antireflux surgery. In general, postoperative studies were not routinely performed on totally asymptomatic patients but were often performed to evaluate specific symptoms. Trastek et al (1998) described subjective long-term results for the uncut Collis–Nissen pro­cedure. Median follow-up was 8.3 years. Results were excel­lent (no symptoms) in 59% of the patients, good (mild reflux without treatment necessary) in 25%, fair (moderate reflux controlled with medication or dilations needed) in 8%, and poor (severe reflux unrelieved with medication, or worse postoperatively, or reoperation required) in 7%. Dysphagia was present in 6%, recurrence of reflux symp­toms in 5%, and hiatal hernia recurrence in 3%. This was similar to the findings of Piehler et al – excellent to good results in 84% of patients, fair results in 7.8%, and poor results in 8.4%.
ACKNOWLEDGMENTS
All the illustrations used in this chapter have been redrawn from originals supplied by the Mayo Foundation, for which copyright is held by the Mayo Foundation.
FURTHER READING
Allen MS, Trastek VF, Deschamps C, Pairolero PC. Intrathoracic stomach:
presentation and results of operation. Journal of Thoracic and Cardiovascular Surgery 1993; 105: 253–59.
Deschamps C, Trastek VF, Allen MS, Pairolero PC, Johnson JO, Larson DR.
Long-term results after reoperation for failed antireflux procedures. Journal of Thoracic and Cardiovascular Surgery 1997; 113: 545–51.
Piehler JM, Payne WS, Cameron AJ, Pairolero PC. The uncut
Collis–Nissen procedure for esophageal hiatal hernia and its complications. Problems in General Surgery 1984; 1: 1–14.
Trastek VF, Deschamps C, Allen MS, Miller DL, Pairolero PC, Thompson A.
Uncut Collis–Nissen fundoplication: learning curve and long-term results. Annals of Thoracic Surgery 1998; 66: 1739–44.
Trastek VF, Visbal AL. The Collis gastroplasty for gastroesophageal reflux.
In: Yang SC, Cameron DE eds. Current therapy in cardiovascular surgery. Philadelphia: Mosby, 2004: 410–13.
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Reoperative antireflux surgery using the
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thoracic approach
ALEX G. LITTLE MD
Elizabeth Berry Gray Chair and Professor, Department of Surgery, Wright State University School of Medicine, Dayton, Ohio, USA
44
HISTORY
Although the history of antireflux surgery is relatively brief, a multitude of surgical options are available that have been per­formed through both thoracic and abdominal routes. Predictably, failure and/or success rates have varied. Globally speaking, however, a long-term success rate of approximately 90% has been the standard. The 10% failure rate may be due either to the recurrence of reflux or the substitution of new symptoms, such as dysphagia or bloating for heartburn.
The limited long-term follow-up of laparoscopic antireflux surgery patients means that neither its failure rate as an initial operation nor its appropriateness as an option for reoperative surgery can yet be determined. Speculatively, the failure rate can be expected to remain relatively unchanged, as laparo­scopic surgical technique now appears to be identical to that used in the open approach.
PATHOPHYSIOLOGY
Diagnosis
An antireflux operation may seem to fail because it was an inappropriate procedure. An antireflux procedure performed for a primary motility disorder of the esophagus, for cardiac disease, or for cholecystitis obviously will not succeed. For this reason, before surgical intervention for gastroesophageal reflux disease is undertaken, any doubts regarding the diag­nosis should be eliminated, and esophageal function tests, both esophageal manometry and pH monitoring, should be performed if there is any question. Patients with classic heart­burn and endoscopically confirmed esophagitis probably do not routinely need this level of testing. However, patients
with atypical symptoms, patients with significant dysphagia, and patients without endoscopically identified esophagitis should all be strongly considered for function testing before operation to avoid this type of error.
Surgical technique
Although surgeons differ regarding some aspects of surgical technique, such as the need for division of the short gastric vessels, some principles are clearly essential. These include the need to close the esophageal hiatus posteriorly before construction of a fundoplication, the need to ensure place­ment of a gastric wrap around the distal esophagus rather than the proximal stomach, and the requirement of perform­ing a fundoplication that is neither too tight nor too long. When these principles are violated, failure is more likely. Closure of the hiatus retards mediastinal dislocation of the wrap, which potentiates its disruption. Wrapping the proxi­mal stomach can result in recurrent reflux or cause obstruc­tion or dysphagia, or both. Finally, either an excessively tight or long wrap can cause both dysphagia and severe bloating.
PREOPERATIVE ASSESSMENT AND PREPARATION
Functional tests
Whereas esophageal function tests should be obtained selec­tively before primary antireflux surgery, they should rou­tinely be performed in all patients before reoperative surgery. They provide essential information regarding remaining esophageal peristaltic capability and document the presence or absence of recurrent reflux.
470 Reoperative antireflux surgery using the thoracic approach
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Anatomical study
All patients should be studied both with a barium contrast radiological examination and an endoscopic examination. These examinations provide essential information about the relationship of the esophagus and fundus to each other and to the diaphragm. Endoscopy not only supplements the radi­ographical information but also is used to assess the absence or presence and the severity of esophagitis and the tightness of the wrap.
SURGICAL OPTIONS
Reoperative surgery can be carried out through either an abdominal or a thoracic approach, can utilize either open or minimally invasive techniques, and can consist of either a redo of the standard antireflux procedure, a standard antire­flux procedure complemented by an esophageal lengthening technique such as the Collis gastroplasty, or resection of dis­eased tissue and reconstruction with colon interposition. The author’s opinion, based on painful experience, is that the tho­racic approach is necessary for many patients. The supradi­aphragmatic, virginal esophagus is easily mobilized. After
peripheral detachment of the diaphragm, ready access to and exposure of the left upper quadrant is achieved, which allows safe and expeditious lysis of adhesions and mobilization of the necessary structures.
Experience has also shown that patients undergoing their first reoperation can usually be adequately treated with a redo of the standard procedure, with or without a Collis gastro­plasty. In patients undergoing their third reoperation, func­tional deterioration and anatomical compromise are both usually present, and a more reliable outcome can be obtained with resection and interposition of either colon or jejunum. When a patient is undergoing a second reoperation, the sur­geon must use judgment as to the wisdom of performing a redo procedure versus resection.
OPERATION
After induction of anesthesia, a double-lumen endotracheal tube is inserted, the stomach is decompressed with a nasal gastric tube, the patient is placed in the right decubitus posi­tion, and the operation is performed either through the bed of the resected left seventh rib or in the seventh intercostal space.
The inferior pulmonary ligament is divided up to the
1
level of the inferior pulmonary vein, and the lung is col­lapsed and packed anteriorly and superiorly to provide expo­sure of the thoracic esophagus. The esophagus is dissected from its mediastinal bed at a location above any inflamma­tory changes and encircled with a Penrose drain. The esopha­gus is subsequently mobilized fully from the aortic arch to the esophageal hiatus. The diaphragm is then incised peripherally approximately 2 cm from its insertion into the chest wall. This incision begins at the pericardial fat with avoidance of the phrenic nerve and extends laterally until the spleen is identified and accessible.
The stomach is initially separated from the spleen with division of the short gastric vessels if they were not previously divided. This provides access to the lesser sac. The dissection is then carried superiorly and medially with complete release of the fundus from the diaphragm and retroperitoneum. The stomach and diaphragm are typically nearly fused. Separating them requires patience and persistence. Adhesions between the anterior stomach and the liver are also lysed, and the liver is retracted free. When the adhesions and scar tissue binding the esophagus and stomach to the esophageal hiatus are being divided, it is helpful for the surgeon’s left hand to be placed in the hiatus below the diaphragm while the sharp dissection is performed from the thoracic side.
Stomach
Spleen
Diaphragm
Esophagus
Aorta
1
With complete freedom of the distal esophagus and the
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2
fundus, the anatomy is inspected to determine the cause of failure. This is carried out in the context of the data obtained from the preoperative assessment. Most frequently what is found is either a partial or total disruption of the ini­tial wrap, placement of a Nissen fundoplication around the proximal stomach, or excessive length or tightness of a Nissen wrap. All remnants of the previous wrap need to be dissected free to try to restore normal anatomy. At this point, based on operative assessment of the integrity of the tissues and the preoperative data, the surgeon chooses between the surgical options.
It is always difficult and sometimes impossible to identify and/or preserve the integrity of the vagus nerves. Nonetheless, clinically important problems with delayed gas­tric emptying are uncommon, and the sequelae of pyloro­plasty can be quite unpleasant. Consequently, the author does not routinely perform any type of gastric emptying proce­dure. This can be done at a later date for the small number of patients who require it.
Diaphragm Esophagus
Gastric pouch above misplaced wrap
Operation 471
Aorta
2
3
Stomach
Esophagus
Left vagus nerve
Aorta
When a redo approach is chosen, the same principles as
3
for primary antireflux surgery should be used. In the author’s experience, a Nissen fundoplication is usually possi­ble. This is performed with a large bougie in the esophagus and consists of the usual three-stitch-length fundoplication around the distal esophagus with closure of the hiatus poste­riorly.
472 Reoperative antireflux surgery using the thoracic approach
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When patients are being reoperated for the third time,
4
when the esophagus has been rendered nonfunctional, or when there is loss of tissue integrity with either a nondilatable stricture or an actual chronic fistula, the distal esophagus should be resected and replaced with a segment of healthy colon or jejunum. The author’s experience is with the use of a short segment of left colon, which provides good long-term function. This means that for all patients undergoing reoper­ative surgery, the bowel should be mechanically cleansed pre­operatively. At surgery, enough colon is prepared to bridge the short gap between the distal esophagus and the stomach; division of the midcolic vessels is usually not required. The colon is placed in isoperistaltic fashion and sutured in an end­to-side fashion to the posterior fundus.
Descending colon
Omentum
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OUTCOME
The outcome of repeated antireflux surgery is not as good as for primary surgery. Experience shows that after one previous operation and when a redo procedure is performed, 75–85% of patients have a good result with elimination of heartburn and only minor dysphagia or bloating. Although these are good results, they are significantly worse than for primary operations. In patients who have undergone multiple previ­ous operations, it is essential that the surgeon maximize the chances of a good outcome. For this reason the conservative approach of resection and interposition with healthy tissue should be considered in the presence of extensive functional or anatomic compromise.
FURTHER READING
Hunter JG. Approach and management of patients with recurrent
gastroesophageal reflux disease. Journal of Gastrointestinal Surgery 2001; 5: 451–57.
Little AG, Ferguson MD, Skinner DB. Reoperation for failed antireflux
operations. Journal of Thoracic and Cardiovascular Surgery 1986; 91: 511–17.
Luketich JD, Fernando HC, Christie NA, et al. Outcomes after minimally
invasive reoperation for gastroesophageal reflux disease. Annals of Thoracic Surgery 2002; 74: 328-32.
Smith CD, McClusky DA, Rajad MA, Lederman AB, Hunter JG. When
fundoplication fails. Annals of Surgery 2005; 241: 861–69.
Thoracoscopic cardiomyotomy for achalasia
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CHRISTOPHER JOHN MARTIN MB BS, MSC, FRACS
Professor of Surgery, University of Sydney; Head of Surgery, Nepean Hospital, Sydney, Australia
45
HISTORY
Longitudinal myotomy of the distal esophagus through a tho­racotomy was first reported for achalasia by Heller in 1914. The morbidity of the thoracotomy wound, both immediate and delayed, led to popularization of distal esophageal myotomy by laparotomy.
Since the early 1990s the procedure has been performed increasingly using a minimally invasive technique such that open operations are now only rarely performed. Initially most oper­ations were performed thoracoscopically rather than laparo­scopically. That balance has now changed for several reasons. Firstly, the incidence of persistent dysphagia after thoracoscopy would appear to be higher because an adequate distal extent of longitudinal myotomy is more difficult to achieve. Secondly, the rate of convalescence would appear to be slower after the tho­racoscopic approach. Thirdly, the incidence of pathological gas­troesophageal reflux is probably higher than initially thought after thoracoscopic cardiomyotomy, and addition of an anti­reflux procedure is technically difficult by the thoracoscopic but not the laparoscopic approach. At this stage, however, these comparisons have not been made in a randomized study.
Nevertheless there is still a place for thoracoscopic car­diomyotomy. For instance, the laparoscopic approach might be precluded by postoperative adhesions or the operating surgeon might feel more adept operating in the chest rather than the abdomen.
In this section thoracoscopic cardiomyotomy will be described in detail, with limited additional remarks only made to cover the operation performed by thoracotomy.
are a low perforation rate, an ability to recognize and remedy perforation at the time should it occur, and a long-term improvement in quality of swallowing for a higher percentage of patients.
PREOPERATIVE ASSESSMENT
The diagnosis of achalasia is suspected on clinical history of dysphagia, supported by contrast radiology and endoscopy of the esophagus and proven by esophageal manometry. Complications of achalasia, such as gross malnutrition and severe respiratory impairment due to repeated aspiration are rarely seen these days.
PREPARATION
Preoperative discussion with the patient should cover the fol­lowing issues: intraoperative perforation, incomplete myotomy leading to persistent dysphagia, and postoperative gastroesophageal reflux. Patients should be aware that associ­ated dysfunction of the esophageal body can result, in the long term, in dysphagia, irrespective of the therapy chosen.
The patient is advised to take fluids only in the 24 hours before surgery to ensure that no residual solid matter is left in the esophagus. This interval may need to be adjusted depend­ing upon the amount of food noted at the diagnostic endoscopy after a standard 6- to 8-hour fast.
PRINCIPLES AND JUSTIFICATION
The principal alternative approach to surgery for achalasia is forceful disruption of the lower esophageal sphincter with an endoscopic balloon. The advantages of the surgical approach
OPERATION
Anesthesia
Deflation of the left lung during the procedure is achieved after insertion of a double-lumen endotracheal tube.