The staging of severity in gastroesophageal reflux disease.

The concept of staging gastroesophageal reflux disease (GERD) has evolved in past decades. In 1974, it was recommended that a standardized method be used to assess the severity and degree of reflux; in 1988, it was proposed that staging be used to evaluate and to report GERD objectively. Some clinicians have since experimented with the staging system by reporting on definite forms of GERD, and others have offered ideas to improve the objectivity of evaluating and reporting GERD.     

Gastroesophageal reflux disease pathophysiology.

Gastroesophageal reflux disease is common in the Western world and affects a heterogeneous population. Structural and physiologic factors contribute to its pathophysiology, but the relative contribution of these individual factors varies between patients. Three main factors are generally central to the condition: TLESR, hypotensive LES tone, and hiatal hernia. In addition, several other factors (e.g., esophageal and gastric motility, salivary secretion, and mucosal defense mechanisms) modulate the extent of the injury produced by acid reflux.     

Gastroesophageal reflux disease

Millions of Americans are affected by gastroesophageal reflux disease (GERD) in many different ways. The magnitude of the problem of GERD was brought to light by the ambulatory pH test, the introduction of minimally invasive surgery, and the advent of the many medications that are effective in acid suppression. Patients with GERD suffer from various consequences associated with the disease. However, interventions beyond medical therapy, such as laparoscopic fundoplication, provide satisfactory outcomes and definitive relief of acid reflux.     

Esophagectomy for gastroesophageal reflux disease.

Failed control of pathologic gastroesophageal reflux leads to irreversible esophageal damage and progressive loss of function. Patients develop severe intractable symptoms, incapacitating dysphagia, and, with end-stage disease, stricture formation or Barrett's esophagus. When medical management and repeated antireflux operations have failed, resection of the diseased esophagus may become the only valid alternative. Careful preoperative evaluation and patient selection are essential to obtain satisfactory long-term functional results with acceptable rates of morbidity and mortality.     

Medical management of gastroesophageal reflux disease.

Gastroesophageal reflux disease (GERD) is the most frequent problem seen in the esophageal clinic and laboratory Most patients who have a small hiatal hernia or an occasional reflux require only symptomatic treatment and some lifestyle modifications. However, prolonged medical treatment becomes mandatory in more severe cases, and these patients must significantly modify their lifestyle and try to correct the underlying causes of their condition.     

Pediatric gastroesophageal reflux disease

This article reviews the mechanisms responsible for gastroesophageal reflux disease (GERD), available techniques for diagnosis, and current medical management. In addition, it extensively discusses the surgical treatment of GERD, emphasizing the use of minimally invasive techniques.     

Gastroesophageal reflux disease in pregnancy

Gastroesophageal reflux disease (GERD) symptoms are common in pregnancy, occurring in approximately 45% to 80% of pregnant women. Although the symptoms associated with reflux in pregnancy are similar to those described in the nonpregnant state, some of the etiologies are distinct due to hormonal fluctuations and other physiologic changes often associated with pregnancy. Diagnostic tools and therapeutic regimens that might be used without hesitation in the nonpregnant patient must be given with cautious consideration in the gravid patient due to potential fetal risks. Pregnant patients with symptomatic GERD should be managed aggressively with lifestyle modification and dietary changes. Antacids and antacids/alginic acids combination or sucralfate should be considered first-line medical therapy; treatment with cimetidine or ranitidine should be considered; these H2 receptor antagonists are preferred during pregnancy. Proton-pump inhibitors should be used with caution because little human experience is available.     

Chronic cough due to gastroesophageal reflux disease

BACKGROUND: Gastroesophageal reflux disease (GERD) can be overlooked as the cause of chronic cough (CC) when typical gastrointestinal symptoms are absent or minimal. We analyzed the outcomes of Nissen fundoplication (NF) for patients who failed medical therapy for CC attributable only to GERD (G-CC). We performed a prospective outcome evaluation of 21 consecutive patients with G-CC undergoing NF from 1997 to 2000 at a tertiary care university hospital. MATERIALS AND METHODS: Twenty-one patients without prior antireflux surgeries had G-CC diagnosed by a clinical profile and 24-h pH monitoring showing a cough-reflux correlation. Respiratory symptoms alone were present in 53% of patients. NF was performed when G-CC persisted despite intensive medical therapy, including an antireflux diet. Preoperatively, all patients underwent 24-h pH monitoring, esophageal manometry, barium swallow, gastric emptying study, bronchoscopy, and upper endoscopy. NF was utilized in all cases, laparoscopically in 18. Before and after surgery, patients graded their cough severity using the Adverse Cough Outcome Survey (ACOS). Quality of life was measured using the Sickness Impact Profile (SIP). Results: Postoperatively, 18 patients (86%) reported an improvement of their cough. G-CC considerably improved in 16/21 patients (76%), with complete resolution in 13 patients (62%). Mild to moderate improvement was found in 2 patients (10%). Patient-reported cough severity (ACOS) and quality of life (SIP) both significantly improved early (6-12 weeks) postoperatively and persisted during the long-term (1 year) follow-up. The average hospital length of stay was 1.78 +/- 0.2 (l-4) days for the laparoscopic (n = 18) and 6.3 +/- 1.2 (4-8) days for the open surgery (n = 3) groups. CONCLUSION: Twenty-four-hour esophageal pH monitoring is a valuable tool for preoperative cough-reflux correlation. Antireflux surgery is effective in carefully selected patients whose refractory CC is attributable only to GERD. NF controls the severity of cough while improving the quality of life. Outcomes are further enhanced using laparoscopic procedures with shorter hospital stays.     

Bile reflux in the constellation of gastroesophageal reflux disease

Gastric acid and bile acids are a particularly noxious combination when they interact with the mucosa of the upper intestinal tract. There is a critical pH range, between 3 and 6, in which bile acids exist in their soluble, un-ionized form, can penetrate cell membranes, and accumulate within mucosal cells. At a lower pH, bile acids are precipitated, and at a higher pH, bile acids exist in their noninjurious ionized form. Experimental, clinical, and immunohistochemical studies show that acid and bile reflux are increased in patients who suffer from GERD, are the key factor in the pathogenesis of Barrett's esophagus, and possibly are related to the development of esophageal adenocarcinoma.     

Pathophysiology of gastroesophageal reflux disease

From a pathophysiologic viewpoint, GERD results from the excessive reflux of gastric contents into the distal esophagus. Under normal conditions, this is prevented as a function of the antireflux barrier at the EGJ, the integrity of which is dependent on the delicate interplay of a host of anatomic and physiologic factors, including the integrity of the LES, TLESR, and anatomic degradation of the EGJ inclusive of but not limited to hiatus hernia. Considerable investigative focus is aimed at describing the subtle aberrations of the EGJ that may contribute to the root causes of GERD. The net result is an increased number of reflux events, an increasing diversity of potential mechanisms of reflux, and a diminished ability of the stomach to selectively vent gas, as opposed to gas and gastric juice, during TLESR. Once reflux occurs, the duration of resultant esophageal acid exposure is determined by the effectiveness of esophageal acid clearance, the dominant determinants of which are peristalsis, salivation, and, again, the anatomic integrity of the EGJ. Approximately half of patients who have GERD have abnormal acid clearance and the major contributor to this is hiatus hernia. Abnormalities of acid clearance probably are the major determining factor influencing which patients who have GERD are most prone to developing esophagitis as opposed to symptomatic GERD. In summary, GERD is a multifactorial process involving physiologic and anatomic abnormalities. These abnormalities exhibit a complicated interplay that degrades the ability of the EGJ to contain gastric juice within the stomach and to clear the esophagus of gastric juice effectively once reflux has occurred.     

Evaluation of gastroesophageal reflux disease

Patients with gastroesophageal reflux disease (GERD) may present with a variety of symptoms, including heartburn, regurgitation, dysphagia, chronic cough, laryngitis, or even asthma. Therefore, the clinical presentation of GERD varies among individuals and conversely symptoms not always correspond to the presence of actual reflux. For that reason, the diagnosis poses certain challenges to the physician. To overcome these challenges, a thorough clinical examination followed by objective functional testing could improve diagnostic accuracy. In addition, a proper evaluation of patients with GERD can help in identifying those who will likely benefit the most from an antireflux procedure. The diagnostic work-up of these patients should include: symptomatic evaluation, upper endoscopy, barium swallow, high-resolution manometry, and ambulatory pH monitoring. Once a proper diagnosis of GERD is achieved, antireflux surgery is an excellent option for patients with partial control of symptoms with medication, for patients who do not want to be on long-term medical treatment (compliance/cost), or when complications of medical treatment occur.     

Gastroesophageal reflux disease -- current trends

GERD has long been recognized as a significant public health concern in USA generating along the time, many disscusions between gastroenterologists and surgeons. Once antireflux barrier was identified, and mechanism of reflux established, GERD can be defined as the failure of the antireflux barrier (represented especially by the lower esophageal sphincter, by gastric empty disorders or failed esophageal peristalsis), allowing abnormal reflux of gastric contents into the esophagus. Positiv diagnosis is setting by the presence of documented esophageal mucosal injury (esophagitis) or excessive reflux during 24 hours intra-edophageal pH monitoring. Medical treatament is efficient in acid suppression, but does not address the mechanical etiology, is too expansive and affect the quality of life of pacients. Miniinvasive surgery was a boom in management of GERD, offering great sathysfaction to pacients, low costs and rapid social integration. We present in folwing pages the role of surgery in GERD, therapy GERD which occur 85-93% control of reflux simptomathology, providing data from the literature on the techniques used, their advantages and limitations.     

New endoscopic treatments for gastroesophageal reflux disease.

This article reviews the available endoscopic treatments for gastroesophageal reflux disease (GERD). Plicating gastric folds methods, like Bard's EndoCinch method (Endoscopic Gastroplication, ELGP method), NDO Surgical's Full-thickness Plicator method, and Wilson-Cook Medical's Endoscopic Suturing Device (ESD) method, are used to form new plications in the cardia. Alternatively, thermal tissue remodeling/neurolysis methods, like Curon Medical's Stretta System, can be used to denature the muscular layer of the lower esophageal sphincter (LES) region. Finally, bulking injection methods, like Boston Scientific's Enteryx Procedure and Medtronic's Gatekeeper Reflux Repair System, can be used to insert a foreign body into the LES region. All six methods resulted in the improvement of symptoms and acid reflux, but only the bulking injection methods caused an improvement of the manometric findings. Nevertheless, the improvement of symptoms and acid reflux seems to be much more important than the improvement of the manometric findings. The overall discontinuation of proton-pump inhibitor (PPI) use was about 70%. Thus, endoscopic treatments for GERD are still in the development phase. The efficacy, safety, durability, cost-effectiveness, indications, and possible combination with other treatments must be thoroughly assessed in randomized controlled trials. If the usefulness of endoscopic treatment is confirmed, however, a new minimally invasive treatment strategy for GERD will have been established.     

Indications for the laparoscopic treatment of gastroesophageal reflux disease.

BACKGROUND: The aim of the study was to evaluate the indications and surgical techniques for the treatment of gastroesophageal reflux disease. METHODS: From 1998 through 2000, we performed gastroesophageal reflux surgery on 12 patients. Preoperative studies revealed third-degree esophagitis in most patients with no functional alterations of the esophagus itself. The patients underwent a laparoscopic Nissen-Rossetti fundoplication. No conversions to open laparotomy were necessary. The mean operative time was 180 minutes. RESULTS: No intraoperative or immediate postoperative complications occurred. The mean postoperative stay was 6.2 days. Transitory postoperative dysphagia was noted in 8 patients. In 5 patients, it was mild and regressed after 2 weeks; in 3 cases, it was severe and regressed over 2 months. CONCLUSION: A laparoscopic surgical approach is a satisfactory method for correcting gastroesophageal reflux disease. The efficacy of medical therapy has been well established. However, in the young person who may be required to take medication for many years or in those persons who are intolerant of standard medical therapy for gastroesophageal reflux disease, a surgical intervention is a satisfactory option. The success of medical therapy can be used as a predictive criterion of the success of laparoscopic Nissen-Rosetti fundoplication when normal motility of the esophageal corpus is present.     

A physiologic approach to laparoscopic fundoplication for gastroesophageal reflux disease.

OBJECTIVE: The authors examined indications, evaluations, and outcomes after laparoscopic fundoplication in patients with gastroesophageal reflux through this single-institution study. SUMMARY OF BACKGROUND DATA: Laparoscopic fundoplication has been performed for less than 5 years, yet the early and intermediate results suggest that this operation is safe and equivalent in efficacy to open techniques of antireflux surgery. METHODS: Over a 4-year period, 300 patients underwent laparoscopic Nissen fundoplication (252) or laparoscopic Toupet fundoplication (48) for gastroesophageal reflux refractory to medical therapy or requiring daily therapy with omeprazole or high-dose H2 antagonists. Preoperative evaluation included symptom assessment, esophagogastroduodenoscopy, 24-hour pH evaluation, and esophageal motility study. Physiologic follow-up included 24-hour pH study and esophageal motility study performed 6 weeks and 1 to 3 years after operation. RESULTS: The most frequent indication for surgery was the presence of residual typical and atypical gastroesophageal reflux symptoms (64%) despite standard doses of proton pump inhibitors. At preoperative evaluation, 51% of patients had erosive esophagitis, stricture, or Barrett's metaplasia. Ninety-eight percent of patients had an abnormal 24-hour pH study. Seventeen percent had impaired esophageal motility and 2% had aperistalsis. There were four conversions to open fundoplication (adhesions, three; large liver, one). Intraoperative technical difficulties occurred in 19(6%) patients and were dealt with intraoperatively in all but 1 patient (bleeding from enlarged left liver lobe). Minor complications occurred in 6% and major complications in 2%. There was no mortality. Median follow-up was 17 months. One year after operation, heartburn was absent in 93%. Four percent took occasional H2 antagonists, and 3% were back on daily therapy. Atypical reflux symptoms (e.g., asthma, hoarseness, chest pain, or cough) were eliminated or improved in 87% and no better in 13%. Overall patient satisfaction was 97%. Four patients have subsequently undergone laparotomy for repair of gastric perforation (1 year after operation), severe dumping, "slipped" Nissen, and repair of acute paraesophageal herniation. Two patients had laparoscopic revision of herniated fundoplications. Results of follow-up 24-hour pH studies were normal in 91% of patients more than 1 year after operation. In patients with poor esophageal motility, esophageal body pressure improved 1 year after operation in 75% and worsened in 10%. CONCLUSIONS: Although long-term efficacy data are lacking, intermediate follow-up shows laparoscopic fundoplication to be safe and effective. A physiologic approach to evaluation and follow-up of patients with gastroesophageal disease allows the surgeon to tailor antireflux surgery to esophageal body function and follow the function of the fundoplication and esophagus after operation.     

Surgical treatment of gastroesophageal reflux disease

Background

Gastroesophageal reflux disease is by far the most prevalent disorder of the foregut. For a long time during the twentieth century, surgical therapy was the mainstay of treatment and the only chance for cure for patients with severe symptoms. Later, after introduction of proton pump inhibitor therapy in the early 1990s, surgical therapy was considered widely a second choice option due to its potential morbidity and side effects. More recently, however, there is growing evidence that long-term antisecretory therapy might be associated to a number of adverse effects such as osteoporosis and increased risk of cardiovascular events. This is the rationale why interventional and surgical options are coming back into focus.

Purpose

The purpose of this review is to analyze and to discuss the current spectrum of surgical therapy of gastroesophageal reflux disease.     

Laparoscopic repair of gastroesophageal reflux disease

Summary This report describes our preliminary experience with two surgical laparoscopic fundoplication procedures, the Nissen technique and the Toupet operation, in which the fundal wrap is reduced from 360° to 180–200°. Fourteen patients with symptomatic gastroesophageal reflux disease who were refractory to pharmacologic and medical therapy underwent a laparoscopic Nissen fundoplication; in an additional 14 patients, we performed a laparoscopic Toupet partial fundoplication. Our laparoscopic approach to the two procedures does not differ significantly from the traditional open methods and the effectiveness of the laparoscopic fundoplication procedures appears similar to that of the same conventional techniques. Oral feedings can be resumed on the first postoperative day and patients typically are discharged on the second day after surgery. Operative time for performing the Toupet procedure averaged just approximately 1.6 h and was shorter than that for the Nissen fundoplication, due to the use of a stapler to secure the fundal wrap. Confirming earlier observations, the laparoscopic Toupet 180–200° fundoplication was associated with a lower incidence of postoperative digestive complications, such as dysphagia, than was the laparoscopic Nissen operation. The laparoscopic fundoplication approach offers the advantages of clear visualization, adequate dissection and precise repair, along with the benefits associated with endoscopic surgery: diminished postoperative pain and discomfort, reduced hospitalization, and quicker return to normal activities. Our experience indicates that the Toupet fundoplication may be preferable to the Nissen technique for many patients requiring surgical treatment of their reflux disease.