Characterization of long-term outcomes after Toupet fundoplication: symptoms, medication use, and health status

Anti-reflux Surgery Versus Proton Pump Inhibitors for Severe Gastroesophageal Reflux Disease: A Cost-Effectiveness Study in Korea

Background/Aims

The economic burden for gastroesophageal reflux disease (GERD) has recently increased in Asian countries. This study investigates the cost-effectiveness between anti-reflux surgery and medication, with proton pump inhibitors (PPIs) for GERD in Korea.

Methods

We used a decision tree and Markov model to obtain the costs and quality-adjusted life years (QALYs) of the surgical and medical strategies. Our target cohort was the severe GERD patients aged 50 years old who required a continuous double dose of PPIs. The time horizon was 10 years and all estimates were discounted at 5% per year. The incremental cost-effectiveness ratio of the anti-reflux surgery compared with medication with PPIs was calculated. Sensitivity analyses were performed on all relevant variables.

Results

The cost-utility analysis indicated anti-reflux surgery was more cost-effective than medication among severe GERD patients over a 10-year period. The model predicted that the surgical strategy had a cost savings of $551 and the QALYs had a gain of 1.18 as compared with the medical strategy. The break-even point in costs of the anti-reflux surgery over the medication was estimated to be 9 years. Sensitivity analyses using the varying parameter assumptions demonstrated the robustness of the study results.

Conclusions

This study showed anti-reflux surgery was less expensive and more effective therapy over the PPI medication after 9 years of follow-up. This suggests the surgical strategy is a cost-effective alternative to PPI medication among patients who need long-term management for GERD in Korea.

Economic evaluations of gastroesophageal reflux disease medical management

BACKGROUND

Gastroesophageal reflux disease (GERD) contributes to substantial medication use and costs worldwide. Economic evaluations provide insight into the value of healthcare, taking into account cost, quality, and benefits of particular treatments.

OBJECTIVES

Our objectives were to systematically review the existing literature to identify economic evaluations of GERD management strategies, to assess the scientific quality of these reports, and to summarize the economic outcomes of these evaluations.

METHODS

We identified economic evaluations and cost studies of GERD management strategies by searching PubMed and the UK NHS Economic Evaluation Database via the Cochrane Library. Searching was restricted to articles in English-language journals from July 2003 to July 2013. Cost-identification articles were excluded from the final analysis.

RESULTS

Eighteen articles were included in the final analysis; 61 % of these met all criteria for quality reporting. Overall, proton pump inhibitor (PPI) therapy was preferred (most effective and least costly) as empiric therapy for patients with reflux symptoms, except in patient populations with high Helicobacter pylori prevalence (>40 %). Initial empiric PPI therapy (vs. initial endoscopy stratification or H. pylori testing) is likely the most cost-effective initial strategy for patients with typical GERD symptoms. Surgery may be cost effective in patients with chronic GERD symptoms at time horizons of 3-10 years. Endoscopic anti-reflux procedures were not cost effective based on available data.

CONCLUSIONS

Further economic evaluations should adhere to standard reporting measures of cost estimates and outcomes, and should attempt to account for and compare the large heterogeneity of patient phenotypes and treatment effects seen with anti-reflux therapies.

Surgical treatment of gastroesophageal reflux disease: total or partial fundoplication? systematic review and meta-analysis

CONTEXT

Although the high incidence of gastroesophageal reflux disease (GERD) in the population, there is much controversy in this topic, especially in the surgical treatment. The decision to use of a total or partial fundoplication in the treatment of GERD is still a challenge to many surgeons because the few evidence found in the literature.

OBJECTIVE

To bring more clear evidence in the comparison between total and partial fundoplication.

DATA SOURCES

A systematic review of the literature and metaanalysis with randomized controlled trials accessed from MEDLINE, LILACS, Cochrane Controlled Trials Database was done. The outcomes remarked were: dysphagia, inability to belch, bloating, recurrence of acid reflux, heartburn and esophagitis. For data analysis the odds ratio was used with corresponding 95% confidence interval. Statistical heterogeneity in the results of the metaanalysis was assessed by calculating a test of heterogeneity. The software Review Manager 5 (Cochrane Collaboration) was utilized for the data gathered and the statistical analysis. Sensitive analysis was applied using only trials that included follow-up over 2 years.

RESULTS

Ten trials were included with 1003 patients: 502 to total fundoplication group and 501 to partial fundoplication group. The outcomes dysphagia and inability to belch had statistical significant difference (P = 0.00001) in favor of partial fundoplication. There was not statistical difference in outcomes related with treatment failure. There were no heterogeneity in the outcomes dysphagia and recurrence of the acid reflux.

CONCLUSION

The partial fundoplication has lower incidence of obstructive side effects.

Laparoscopic Nissen versus Toupet fundoplication: assessment of operative outcomes

BACKGROUND

This study was designed to analyze the outcomes of Nissen fundoplication (NF) versus Toupet fundoplication (TF) in patients undergoing laparoscopic antireflux surgery (LARS).

METHODS

All perioperative data, operative/postoperative complications, and follow-up data were prospectively recorded. All patients were seen on the 2nd month postoperatively and by yearly intervals thereafter. All patients have at least 12-month follow-up. Using SPSS software, groups were compared by t-test and chi-square tests as appropriate.

RESULTS

One thousand consecutive patients underwent primary LARS from May 2004 to August 2009. Six hundred eighty-four patients had NF and 316 had TF fundoplication. The mean follow-up of the NF (51.26 months) group was slightly longer than the TF group (43.53 months) (P=.018). There was no mortality and conversion. Esophageal perforation, jejunal perforation, and pulmonary emboli were the sole three major complications in separate patients. Dysphagia occurred in 15.4% and 9.9% in NF and TF, respectively (P=.001). Corresponding numbers for bloating were 19.6% and 10.8% in NF and TF, respectively (P=.001). Seventeen patients underwent reinterventions such as dilatation and re-do surgery and all 17 were in the NF group (P<.05). All other minor complications were similar except hiccups, which were seen in 30 patients and all were in the NF group (P<.05). Recurrence of reflux was observed in 1.8% and 2.2% of the NF and TF, respectively (P=.620).

CONCLUSION

Both NF and TF are effective procedures in controlling the acid-reflux symptoms. The functional side effects appear more often in the NF group. These side effects can be minimized and reinterventions for severe/prolonged dysphagia can be avoided with TF.

Asia-Pacific consensus on the management of gastroesophageal reflux disease: update

BACKGROUND AND AIMS

Since the publication of the Asia-Pacific GERD consensus in 2004, more data concerning the epidemiology and management of gastroesophageal reflux disease (GERD) have emerged. An evidence based review and update was needed.

METHODS

A multidisciplinary group developed consensus statements using the Delphi approach. Relevant data were presented, and the quality of evidence, strength of recommendation, and level of consensus were graded.

RESULTS

GERD is increasing in frequency in Asia. Risk factors include older age, male sex, race, family history, higher socioeconomic status, increased body mass index, and smoking. Symptomatic response to a proton pump inhibitor (PPI) test is diagnostic in patients with typical symptoms if alarm symptoms are absent. A negative pH study off therapy excludes GERD if a PPI test fails. The role for narrow band imaging, capsule endoscopy, and wireless pH monitoring has not yet been undefined. Diagnostic strategies in Asia must consider coexistent gastric cancer and peptic ulcer. Weight loss and elevation of head of bed improve reflux symptoms. PPIs are the most effective medical treatment. On-demand therapy is appropriate for nonerosive reflux disease (NERD) patients. Patients with chronic cough, laryngitis, and typical GERD symptoms should be offered twice daily PPI therapy after excluding non-GERD etiologies. Fundoplication could be offered to GERD patients when an experienced surgeon is available. Endoscopic treatment of GERD should not be offered outside clinical trials.

CONCLUSIONS

Further studies are needed to clarify the role of newer diagnostic modalities and endoscopic therapy. Diagnostic strategies for GERD in Asia must consider coexistent gastric cancer and peptic ulcer. PPIs remain the cornerstone of therapy.

Effect of surgeon on outcome of antireflux surgery

BACKGROUND

We sought to determine whether subjective outcomes one or more years after antireflux surgery are affected by the operating surgeon.

METHODS

We reviewed records of patients who had antireflux surgery from June 2000 to June 2002 and mailed the patients a 19-item survey that focused on current medication use, postoperative symptom improvement, and satisfaction with surgery. We tested the significance of predictor variables using chi-squared and Fisher exact tests for categorical variables and analysis of variance for continuous variables.

RESULTS

We mailed the survey to 74 patients. Ninety-one percent of the operations were initially laparoscopic, with 5 (7%) subsequently converting to open. Ninety-five percent of patients were taking protein pump inhibitors (PPIs) preoperatively. Surgeons (n = 7) were divided into four groups, with the four surgeons who did two or fewer procedures in one group. Fifty-two of 74 patients (70%) responded to the survey (mean age, [SD] 44 [21] years, 37% male). The mean duration of followup was 2.1 [0.46] years. Thirty-eight percent of patients were taking medications for gastroesophageal reflux disease at the time of survey completion. It was found that the surgeon had an influence on patients' perceptions of the success of the surgery and whether having surgery was a good idea. We did not identify a statistically significant effect of the surgeon on preoperative symptom severity, postoperative ability to belch, dysphagia, medication use, and lifestyle.

CONCLUSION

A patient's surgeon has an effect on satisfaction with antireflux surgery. Further research should clarify specific practices of the surgeon (patient selection, operative technique, followup) associated with best outcome.

Complications After Surgery for Gastroesophageal Reflux Disease

Most complications after surgery for GERD can be avoided by experience and proper surgical technique. Often, what is termed a "slipped" or "twisted" wrap is one that was not properly constructed during the initial surgery. These technical errors can be avoided by complete mobilization of the stomach and esophagus, removal of the epigastric fat pad to identify esophageal shortening, and preservation of both vagus nerves. It is critical to avoid these errors, because an improperly constructed wrap will probably condemn the patient to significant dysphagia, recurrent reflux, and the need for reoperation. Should reoperation be required, the wrap should be completely dismantled so the technical error can be identified and a proper antireflux mechanism created.

Partial Versus Complete Fundoplication: Is There a Correct Answer?

Gastroesophageal reflux disease is a common disorder, and patients diagnosed with GERD face a lifelong treatment requirement. A surgical antireflux procedure may be offered as an alternative to lifelong treatment with proton-pump inhibitors. Many investigations have been performed to help discover the best surgical alternative to medical management. An ideal antireflux procedure should be safe, effective, durable, and result in minimal complications. Total fundoplication in the form of Nissen fundoplication is the most widely used antireflux operation worldwide. Although its efficacy is well documented, the clinical success rate in terms of reflux control is occasionally compromised by troublesome mechanical side effects. Because of these unsatisfactory symptoms and continued hindered quality of life, the Nissen fundoplication has undergone many modifications. The current standard appears to be the 2 cm floppy Nissen; however, the alternative approach has been the use of a partial fundoplication, most frequently the Toupet procedure. Both the Nissen and Toupet fundoplications have proven to provide relief in the majority of patients, but each has its own drawback. Patients undergoing Nissen fundoplication have a higher incidence of dysphagia early after operation, although this appears to resolve in most. The Toupet, on the other hand, may not be as durable, and may lead to the early re-emergence of symptoms. The problem of post-Nissen dysphagia led many surgeons to believe that the Nissen night be contraindicated in patients who have dysmotility,because it would cause even greater dysphagia; however, recent articles have not demonstrated this to be the case. It seems that the floppy Nissen performed over a large bougie (56-60 Fr) with division of short gastrics and crural closure is an acceptable operation for reflux in both those who have normal motility and those who have mild to moderate dysmotility. Thus, for most patients who have GERD and normal motility, either procedure appears effective in the majority of patients; however, those patients who have severe dysmotilty disorders and who require an antireflux procedure(ie, scleroderma, postmyotomy achalasia) are likely best served with a partial fundoplication.

Laparoscopic Nissen fundoplication in patients with nonerosive reflux disease. Long-term quality-of-life assessment and surgical outcome

BACKGROUND

It is known that laparoscopic antireflux surgery (LARS) can achieve an excellent surgical outcome including quality of life improvement in patients with erosive gastroesophageal reflux disease (GERD; EGD-positive). Less is known about the long-term surgical outcome in GERD patients who have no evidence of esophagitis (EGD-negative) before surgery. The aim of this study was to evaluate the surgical outcome in a well-selected group of EGD-negative patients compared to that of EGD-positive patients.

METHODS

From a large sample of more than 500 patients who underwent LARS, 89 EGD-negative patients (mean age, 51 +/- 6 years; 56 males) were treated surgically because of persistent reflux-related symptoms despite medical therapy. In all cases, preoperative 24-h pH monitoring showed pathological values. To perform a comparative analysis, a matched sample of EGD-positive patients (mean age, 54 +/- 10 years; 58 males) was selected from the database. Surgical outcome included for all patients objective data (e.g., manometry and pH data and endoscopy), quality of life evaluation [Gastrointestinal Quality of Life Index (GIQLI)] symptom evaluation, as well as patients' satisfaction with surgery. The data of a complete 5-year follow-up are available.

RESULTS

There were no significant differences in symptomatic improvement, percentage of persistent surgical side-effects, or objective parameters. In general, patients' satisfaction with surgery was comparable in both groups: 95% rated long-term outcome as excellent or good and would undergo surgical treatment again if necessary, respectively. Quality of life improvement was significantly better (p < 0.05) in the EGD-negative group because of the fact that GIQLI was more impaired before surgery (preoperative GIQLI, 81.7 +/- 11.6 points/EGD-negative vs 93.8 +/- 10.3 points/EGD-positive). Five years after surgery, GIQLI in both groups (121.2 +/- 8.5 for EGD-negative vs 120.9 +/- 7.3 for EGD-positive) showed comparable values to healthy controls (122.6 +/- 8.5).

CONCLUSION

We suggest that LARS is an excellent treatment option for well-selected patients with persistent GERD-related symptoms who have no endoscopic evidence of esophagitis.

Re-examination of the cost-effectiveness of surgical versus medical therapy in patients with gastroesophageal reflux disease: the value of long-term data collection

OBJECTIVES

For patients with reflux esophagitis, long-term therapeutic options include proton pump inhibitor (PPI) therapy and/or antireflux surgery. An earlier cost-effectiveness analysis concluded that at 5 yr, medical therapy was less expensive but similarly effective to fundoplication, but the results were sensitive to estimates on quality of life and long-term medication usage, which were derived from "expert opinion." Recently, data from randomized controlled trials addressing these variables have become available. We have incorporated these new data into a revised Markov model to examine the cost-effectiveness of surgical versus medical therapy in patients with severe reflux esophagitis.

METHODS

A Markov simulation model was constructed using specialized software (DATA PRO 4.0, Williamstown, MA). Total expected costs and quality-adjusted life-years were calculated for long-term medical therapy and for laparoscopic Nissen fundoplication. Probabilities were obtained from the medical literature using Medline. Procedural and hospitalization costs used were the average Medicare reimbursements at our institution. Medication costs were the average wholesale price. The analysis was extended over a 10-yr time horizon at a discount rate of 3%.

RESULTS

The discounted analysis shows that medical therapy is associated with total costs of 8,798 dollars and 4.59 quality-adjusted life-years, whereas the surgical strategy is more expensive (10,475 dollars) and less effective (4.55 quality-adjusted life-years). The results were robust to most one-way sensitivity analyses.

CONCLUSIONS

Long-term medical therapy with proton pump inhibitors is the preferred strategy for patients with gastroesophageal reflux disease and severe esophagitis. Our study highlights the importance of using primary, patient-derived data rather than expert opinion.

Evidence-based appraisal of antireflux fundoplication

OBJECTIVE

To highlight the current available evidence in antireflux surgery through a systematic review of randomized controlled trials (RCTs).

SUMMARY BACKGROUND DATA

Laparoscopic fundoplication is currently suggested as the gold standard for the surgical treatment of gastroesophageal reflux disease, but many controversies are still open concerning the influence of some technical details on its results.

METHODS

Papers related to RCTs identified via a systematic literature search were evaluated according to standard criteria. Data regarding the patient sample, study methods, and outcomes were abstracted and summarized across studies. Defined outcomes were examined for 41 papers published from 1974 to 2002 related to 25 RCTs. A meta-analysis was performed pooling the results as odds ratios (OR), rate differences (RD), and number needed to treat (NNT). Data given as mean and/or median values were pooled as a mean +/- SD (SD).

RESULTS

No perioperative deaths were found in any of the RCTs. Immediate results showed a significantly lower operative morbidity rate (10.3% versus 26.7%, OR 0.33, RD -12%, NNT 8), shorter postoperative stay (3.1 versus 5.2 days, P = 0.03), and shorter sick leave (20.1 versus 35.8 days, P = 0.03) for laparoscopic versus open fundoplication. No significant differences were found regarding the incidence of recurrence, dysphagia, bloating, and reoperation for failure at midterm follow-up. No significant differences in operative morbidity (13.1% versus 9.4%) and in operative time (90.2 versus 84.2 minutes) were found in partial versus total fundoplication. A significantly lower incidence of reoperation for failure (1.6% versus 9.6%, OR 0.21, RD -7%, NNT 14) was found after partial fundoplication, with no significant differences regarding the incidence of recurrence and/or dysphagia. Routine division of short gastric vessels during total fundoplication showed no significant advantages regarding the incidence of postoperative dysphagia and recurrence when compared with no division. The use of ultrasonic scalpel compared with clips or bipolar cautery for the division of short gastric vessels showed no significant effect on operative time, postoperative complications, and costs.

CONCLUSIONS

Laparoscopic antireflux surgery is at least as safe and as effective as its open counterpart, with reduced morbidity, shortened postoperative stay, and sick leave. Partial fundoplication significantly reduces the risk of reoperations for failure over total fundoplication. Routine versus no division of short gastric vessels showed no significant advantages. A word of caution is needed when implementing these results derived from RCTs performed in specialized centers into everyday clinical practice, where experience and skills may be suboptimal.