Effect of laparoscopic fundoplication on gastroesophageal reflux disease-induced respiratory symptoms

Efficacy and safety of fundoplication in treating gastroesophageal reflux-related chronic cough: A meta-analysis

Gastroesophageal reflux related chronic cough (GERC), is a common type of chronic cough. Drug treatment is the first choice. But some patients are tired of taking medicine everyday and some patients can not benefit from drugs. For these patients, fundoplication may be the most effective method. However, the importance of fundoplication in treating GERC is undervalued, and there is very few meta-analysis looking into the effect and safety of fundoplication in treating GERC. To solve this question, we performed this meta-analysis. The PRISMA strategy was used for this study. Our study was registered with PROSPERO (ID: CRD42021251072). We searched PubMed, Medline, Web of Science, and the Cochrane databases from 1990 to December of 2022. The meta-analysis was performed with Review Manager 5.4 and Stata 14. After selection and exclusion, 15 articles out of 672 were included. The meta-analysis showed that the cure rate of laparoscopic fundoplication in treating GERC was 58% (95%CI: 52%-65%), with I2 = 45%; and the effective rate was 86% (95%CI: 80%-93%), with I2 = 0%. Laparoscopic fundoplication is effective for the most of GERC patients; however, when the goal is to cure GERC completely, a relatively conservative attitude should be taken. In terms of safety, laparoscopic fundoplication is quite reliable offered by skilled surgeons.

Refractory Gastroesophageal Reflux Disease: Diagnosis and Management

Gastroesophageal reflux disease (GERD) is common, with increasing worldwide disease prevalence and high economic burden. A significant number of patients will remain symptomatic following an empiric proton pump inhibitor (PPI) trial. Persistent symptoms despite PPI therapy are often mislabeled as refractory GERD. For patients with no prior GERD evidence (unproven GERD), testing is performed off antisecretory therapy to identify objective evidence of pathologic reflux using criteria outlined by the Lyon consensus. In proven GERD, differentiation between refractory symptoms (persisting symptoms despite optimized antisecretory therapy) and refractory GERD (abnormal reflux metrics on ambulatory pH impedance monitoring and/or persistent erosive esophagitis on endoscopy while on optimized PPI therapy) can direct subsequent management. While refractory symptoms may arise from esophageal hypersensitivity or functional heartburn, proven refractory GERD requires personalization of the management approach, tapping from an array of non-pharmacologic, pharmacologic, endoscopic, and surgical interventions. Proper diagnosis and management of refractory GERD is critical to mitigate undesirable long-term complications such as strictures, Barrett's esophagus, and esophageal adenocarcinoma. This review outlines the diagnostic workup of patients presenting with refractory GERD symptoms, describes the distinction between unproven and proven GERD, and provides a comprehensive review of the current treatment strategies available for the management of refractory GERD.

Laparoscopic fundoplication in treating refractory gastroesophageal reflux-related chronic cough: A meta-analysis

BACKGROUND

Gastroesophageal reflux-related chronic cough (GERC), is one common type of chronic cough. Drug treatment is effective for some GERC patients. But, there is refractory GERC (rGERC). For rGERC, fundoplication may be the only effective method. However, there were very few studies about laparoscopic fundoplication in treating rGERC, and the cure rate of fundoplication in treating rGERC was unknown. So there is a question, what is the cure rate of fundoplication in treating rGERC? To solve this question, we performed this meta-analysis.

METHODS

The PRISMA strategy and Cochrane collaboration method were used for this study. Our study was registered with PROSPERO (ID: CRD42021251072). We searched PubMed, Medline, Web of Science, and the Cochrane databases from 1990 to December 2022. The meta-analysis was performed with Review Manager 5.4 and Stata 14.

RESULTS

After selection and exclusion, 8 articles out of 672 were included. The meta-analysis showed the cure rate of laparoscopic fundoplication in treating rGERC was 62% (95% confidence interval: 53-71%), with no deaths in 503 patients. There was no significant heterogeneity or bias in the meta-analysis.

CONCLUSIONS

In terms of safety, laparoscopic fundoplication is quite reliable offered by skilled surgeons. In terms of cure rate, laparoscopic fundoplication could completely heal two-thirds of rGERC patients; however, there are still some patients who can not be completely cured by fundoplication.

CIRURGIA LAPAROSCÓPICA ANTI-REFLUXO: PERGUNTAS ANTIGAS FORAM RESPONDIDAS ? É ÚTIL NOS SINTOMAS EXTRA-ESOFÁGICOS ?

Gastroesophageal reflux disease is usually associated with esophageal or typical symptoms such as heartburn, regurgitation, and dysphagia. However, there is today mounting evidence that gastroesophageal reflux can also cause extra-esophageal or atypical problems such as cough, aspiration pneumonia, and pulmonary fibrosis. AIM: The aim of this study was to discuss the pathophysiology of extra-esophageal symptoms, the diagnostic evaluation, complications, and the outcome of video laparoscopic antireflux surgery.

Anti-reflux surgery for controlling respiratory symptoms of gastro-esophageal reflux disease: A systematic review and meta-analysis

Gastro-esophageal reflux disease (GERD) patients have a higher prevalence of airway symptoms, such as chronic cough, wheezing, and hoarseness. The therapeutic management of patients with these symptoms is controversial. Therefore, this study aims to perform a systematic review and meta-analysis evaluating the efficacy of anti-reflux surgery for controlling respiratory symptoms related to GERD. A systematic review and meta-analysis was performed. Extraction of the data concerning proportions of participants who were not free of respiratory symptoms related to GERD (cough, wheezing, hoarseness) or not substantially improved at follow-ups (failure to cure) was performed. Of the 3,424 initially screened articles, 68 studies were included for systematic review and 61 were included for meta-analysis, with a cumulative sample size of 3,869 patients. Of all the included patients, after anti-reflux surgery, the general symptoms improvement was 80% (95% CI 75.2-84%). The numbers needed to harm (NNH) and the numbers needed to treat (NNT) were 15.21 and 1.23, respectively. Of the included patients, 83.4% (95% CI 78.3-87.5%) patients reported improvement in cough symptoms after surgery. For the wheezing symptom, 71.5% (95% CI 62.9-78.8%) reported improvement after surgery. Moreover, surgery presented better results in improving respiratory symptoms than medical therapy (risk difference: -0.46; 95% CI -0.77, -0.16). Physicians should strongly consider surgical anti-reflux procedures for controlling respiratory symptoms in GERD patients after proper patient selection. Anti-reflux surgery has shown high efficacy in improving respiratory symptoms related to GERD, even when compared to medical therapy.

Magnetic sphincter augmentation is an effective treatment for atypical symptoms caused by gastroesophageal reflux disease

BACKGROUND

The purpose of this study was to determine whether magnetic sphincter augmentation (MSA) could effectively treat patients with gastroesophageal reflux disease (GERD) who suffer primarily from atypical symptoms due to laryngopharyngeal reflux (LPR). MSA has been shown to treat typical symptoms of GERD with good success, but its effect on atypical symptoms is unknown.

METHODS

A retrospective review of a prospectively maintained institutional review board-approved database was conducted for all patients who underwent MSA between January 2015 and December 2018. All patients had objective confirmation of GERD from ambulatory pH monitoring off anti-reflux medications (DeMeester score > 14.7). Symptoms were assessed preoperatively and at 1 year postoperatively using GERD Health-Related Quality of Life (GERD-HRQL) and Reflux Symptom Index (RSI) questionnaires.

RESULTS

There were 86 patients (38 males; 48 females) with a median age of 51.5 years. Total GERD HRQL scores improved from a mean of 38.79 to 6.53 (p < 0.01) and RSI scores improved from a mean of 20.9 to 8.1 (p < 0.01). Atypical symptoms evaluated from the RSI questionnaire include hoarseness, throat clearing, postnasal drip, breathing difficulties, and cough. All atypical symptoms were significantly improved at 1 year following MSA (p < 0.01). All three typical symptoms of heartburn, dysphagia, and regurgitation were significantly improved based on pre and postoperative GERD HRQL questionnaires (p < 0.02). Ninety-one percent of patients were off their PPI and dissatisfaction with their current therapy decreased from 95% preoperatively to 13% postoperatively.

CONCLUSION

MSA is an effective treatment for typical and atypical GERD symptoms.

How to select patients for antireflux surgery? The ICARUS guidelines (international consensus regarding preoperative examinations and clinical characteristics assessment to select adult patients for antireflux surgery)

OBJECTIVE

Antireflux surgery can be proposed in patients with GORD, especially when proton pump inhibitor (PPI) use leads to incomplete symptom improvement. However, to date, international consensus guidelines on the clinical criteria and additional technical examinations used in patient selection for antireflux surgery are lacking. We aimed at generating key recommendations in the selection of patients for antireflux surgery.

DESIGN

We included 35 international experts (gastroenterologists, surgeons and physiologists) in a Delphi process and developed 37 statements that were revised by the Consensus Group, to start the Delphi process. Three voting rounds followed where each statement was presented with the evidence summary. The panel indicated the degree of agreement for the statement. When 80% of the Consensus Group agreed (A+/A) with a statement, this was defined as consensus. All votes were mutually anonymous.

RESULTS

Patients with heartburn with a satisfactory response to PPIs, patients with a hiatal hernia (HH), patients with oesophagitis Los Angeles (LA) grade B or higher and patients with Barrett's oesophagus are good candidates for antireflux surgery. An endoscopy prior to antireflux surgery is mandatory and a barium swallow should be performed in patients with suspicion of a HH or short oesophagus. Oesophageal manometry is mandatory to rule out major motility disorders. Finally, oesophageal pH (±impedance) monitoring of PPI is mandatory to select patients for antireflux surgery, if endoscopy is negative for unequivocal reflux oesophagitis.

CONCLUSION

With the ICARUS guidelines, we generated key recommendations for selection of patients for antireflux surgery.

Typical symptoms and not positive reflux-cough correlation predict cure of gastroesophageal reflux disease related chronic cough after laparoscopic fundoplication: a retrospective study

Background

The effect of laparoscopic fundoplication on reflux-related chronic cough is unpredictable, the aim of the study is to investigate the predictive effect of positive reflux-cough correlation on the resolution of reflux-related chronic cough after anti-reflux surgery.

Methods

A 5 years retrospective review was performed. Logistic regression analysis was used to determine the independent predictors on the cure of chronic cough.

Results

Seventy-nine patients were included in this study, among which chronic cough was cured in 47 (59.5%) and significantly improved in 10 (12.7%) patients. Present of typical symptoms (odds ratio = 6.435,95% confidence interval [CI] = 1.427–29.032, p = 0.015) and number of Reflux episodes (impedance) ≥73 (odds ratio = 0.306, 95% confidence interval [CI] = 0.107–0.874, p = 0.027) were significantly associated with the cure of chronic cough.

Conclusions

laparoscopic fundoplicaiton is effective for the management of reflux-related chronic cough, particularly with the present of typical symptoms.

Trial registration

(Trial registration number: ChiCTR1800016444; Trial registration date: June 01, 2018)

Does DeMeester score still define GERD?

Gastroesophageal reflux disease (GERD) clinical presentation may encompass a myriad of symptoms that may mimic other esophageal and extra-esophageal diseases. Thus, GERD diagnosis by symptoms only may be inaccurate. Upper digestive endoscopy and barium esophagram may also be misleading. pH monitoring must be added often for a definitive diagnosis. The DeMeester score (DMS) is a composite score of the acid exposure during a prolonged ambulatory pH monitoring that has been used since 1970s to categorize patients as GERD+ or GERD-. We showed in this review that DMS has some limitations and strengths. Although there is not a single instrument to precisely diagnose GERD in all of its variances, pH monitoring analyzed at the light of DMS is still a reliable method for scientific purposes as well as for clinical decision making. There are no data that show that acid exposure time is superior-or for that matter inferior-as compared to DMS.

Extraesophageal Symptoms and Diseases Attributed to GERD: Where is the Pendulum Swinging Now?

The purpose of this review is to outline the recent developments in the field of extraesophageal reflux disease and provide clinically relevant recommendations. The recommendations outlined in this review are based on expert opinion and on relevant publications from PubMed and EMbase. The Clinical Practice Updates Committee of the American Gastroenterological Association proposes the following recommendations: Best Practice Advice 1: The role of a gastroenterologist in patients referred for evaluation of suspected extra esophageal symptom is to assess for gastroesophageal etiologies that could contribute to the presenting symptoms. Best Practice Advice 2: Non-GI evaluations by ENT, pulmonary and/or allergy are essential and often should be performed initially in most patients as the cause of the extraesophageal symptom is commonly multifactorial or not esophageal in origin. Best Practice Advice 3: Empiric therapy with aggressive acid suppression for 6-8 weeks with special focus on response of the extraesophageal symptoms can help in assessing association between reflux and extraesophageal symptoms. Best Practice Advice 4: No single testing methodology exists to definitively identify reflux as the etiology for the suspected extra esophageal symptoms. Best Practice Advice 5: Constellation of patient presentation, diagnostic test results and response to therapy should be employed in the determination of reflux as a possible etiology in extra esophageal symptoms. Best Practice Advice 6: Testing may need to be off or on proton pump inhibitor (PPI) therapy depending on patients' presenting demographics and symptoms in assessing the likelihood of abnormal gastroesophageal reflux. A. On therapy testing may be considered in those with high probability of baseline reflux (those with previous esophagitis, Barrett's esophagus or abnormal pH). B. Off therapy testing may be considered in those with low probability of baseline reflux with the goal of identifying moderate to severe reflux at baseline. Best Practice Advice 7: Lack of response to aggressive acid suppressive therapy combined with normal pH testing off therapy or impedance-pH testing on therapy significantly reduces the likelihood that reflux is a contributing etiology in presenting extraesophageal symptoms. Best Practice Advice 8: Surgical fundoplication is discouraged in those with extra esophageal reflux symptoms unresponsive to aggressive PPI therapy. Best Practice Advice 9: Fundoplication should only be considered in those with a mechanical defect (e.g., hiatal hernia), moderate to severe reflux at baseline off PPI therapy who have continued reflux despite PPI therapy and have failed more conservative non-GI treatments.

Surgical Treatment of Extraesophageal Manifestations of Gastroesophageal Reflux Disease

OBJECTIVE

To review the current literature on the role of antireflux surgery (ARS) for the treatment of extraesophageal manifestations of GERD. The extraesophageal manifestations of gastroesophageal reflux disease (GERD) include chronic cough, laryngopharyngeal reflux, and asthma. They are responsible for significant morbidity in affected patients and a high economic burden on healthcare resources. We recently published a larger review on the symptoms, diagnosis, medical, and surgical treatment of the extraesophageal manifestations of GERD. Through our investigation, we found that the role of ARS for respiratory symptoms was unclear. Hence, we resorted through the data of our previous meta-analysis to compile a comprehensive and focused review on the role of ARS for respiratory symptoms.

METHODS

Using the archive of our previous meta-analysis, we selected studies extracted from the MEDLINE, Cochran, PubMed, Google Scholar, and Embase databases pertaining to the surgical treatment of extraesophageal manifestations of reflux (cough laryngopharyngeal reflux, and asthma). We applied a similar reporting methodology as was used in our previous manuscript and then hand searched the bibliographies of included studies yielding a total of 27 articles for review. We graded the level of evidence and classified recommendations by size of treatment effect per the American Heart Association Task Force on Practice Guidelines.

RESULTS

Observational data indicated that syndromes of chronic cough, laryngopharyngeal reflux and asthma might improve after antireflux surgery only in highly selected patients-likely those with non-acid reflux-while those patients with objective markers of asthma severity do not. Because of the varied methods of diagnosis and surgical technique, non-comparative observational data may be unreliable. Additionally, our search found no randomized controlled trials (RCTs) comparing antireflux surgery to medical therapy in the treatment of cough or laryngopharyngeal reflux. One RCT compared medical treatment to antireflux surgery in patients with asthma, but medical treatment included high-dose H₂ blockers instead of PPIs.

CONCLUSIONS

Extraesophageal manifestations of GERD are common, costly, and difficult to treat. ARS might be effective in highly selected patients, especially in those whose extraesophageal manifestations are caused by non-acid reflux. The available data to date are generally of poor quality or outdated. Well-designed randomized controlled trials or large-scale observational cohort studies are urgently needed.

Gastroesophageal Reflux and Idiopathic Pulmonary Fibrosis

BACKGROUND

Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease of unknown origin that affects about 40,000 new patients every year in the USA. Albeit the disease is labelled as idiopathic, it is thought that pathologic reflux, often silent, plays a role in its pathogenesis through a process of microaspiration of gastric contents.

AIMS

The aim of this study was to review the available evidence linking reflux to IPF, and to study the effect of medical and surgical therapy on the natural history of this disease.

RESULTS

Medical therapy with acid-reducing medications controls the production of acid and has some benefit. However, reflux and aspiraion of weakly acidic or alkaline gastric contents can still occur. Better results have been reported after laparoscopic anti-reflux surgery, as this form of therapy re-establishes the competence of the lower esophageal sphincter, therefore stopping any type of reflux.

CONCLUSIONS

A phase II NIH study in currently in progress in the USA to determine the role of antireflux surgery in patients with GERD and IPF. The hope is that this simple operations might alter the natural history of IPF, avoiding progression and the need for lung transplantation.

Idiopathic Pulmonary Fibrosis: Novel Concepts of Proton Pump Inhibitors as Antifibrotic Drugs

The prevalence of abnormal acid gastroesophageal reflux (GER) is higher in patients with idiopathic pulmonary fibrosis (IPF) than in matched control subjects. Several studies demonstrated that more than one-third of patients with IPF have abnormal esophageal acid exposures. In addition, many of these studies indicate that the majority of patients with IPF have silent reflux with no symptoms of GER. Findings of abnormal reflux persist in a large proportion of patients with IPF placed on antacid therapy such as proton pump inhibitors (PPIs). This seemingly paradoxical observation suggests that either patients with IPF are somehow resistant to PPI-based intervention or PPIs are inherently unable to suppress acid GER. By contrast, patients with IPF who undergo Nissen fundoplication surgery are effectively relieved from the complications of GER, and retrospective studies suggest improved lung function. Retrospective, anecdotal data suggest a beneficial role of PPIs in IPF including stabilization of lung function, reduction in episodes of acute exacerbation, and enhanced longevity. The recent evidence-based guidelines for treatment of IPF approved conditional recommendation of PPIs for all patients with IPF regardless of their GER status. Recently, we have reported that PPIs possess antiinflammatory and antifibrotic activities by directly suppressing proinflammatory cytokines, profibrotic proteins, and proliferation of lung fibroblasts. Our study provides an alternative explanation for the beneficial effect of PPIs in IPF. In this Perspective, we reviewed emerging progress on antifibrotic effect of PPIs using IPF as a disease model. In addition, we summarized surgical and pharmacological interventions for GER and their downstream effect on lung physiology.

Long-term effects of fundoplication in children with chronic airway diseases

BACKGROUND

Association between chronic airway diseases (CAD) and gastroesophageal reflux disease (GERD) is well described, but causality has not yet been conclusively established. This study evaluates the therapeutic significance of laparoscopic Thal fundoplication in children with CAD and diagnosed GERD.

METHODS

We performed a retrospective analysis of 182 neurologically nonimpaired children, all with medically refractory CAD and GERD undergoing laparoscopic Thal fundoplication. The clinical response, ability to wean oral and inhaled medication and satisfaction with postoperative results were evaluated.

RESULTS

Main symptoms disappeared completely in 68.7% of patients and were markedly improved in a further 22% of patients following surgery. Complete discontinuation of medication was achieved in 70.1-96.4% of cases and reduced in a further 1.8-23.5%. One intraoperative complication occurred (gastric perforation), however no conversion to laparotomy was necessary. Postoperative Dumping Syndrome occurred in 1% of cases and was managed dietetically. Prolonged postoperative dysphagia occurred in 4.3% of patients, but disappeared within 8 weeks in all but one case.

CONCLUSIONS

Our study suggests that Thal fundoplication in neurologically nonimpaired children with CAD and documented GERD is effective and safe. Children unresponsive to preoperative medical management showed significant improvement in airway symptoms together with a marked reduction in the need for medication. We conclude that laparoscopic Thal fundoplication represents a significant treatment worthy of consideration in this group of patients.

Ratio between proximal/distal gastroesophageal reflux does not discriminate abnormal proximal reflux

INTRODUCTION

The threshold for pathologic proximal acid reflux is a controversial topic. Most values previously published are based on absolute numbers. We hypothesized that a relative value representing the quantitative relation between the amount of acid reflux that reaches proximal levels and the amount of distal reflux would be a more adequate parameter for defining pathologic proximal reflux.

METHODS

We studied 20 healthy volunteers (median age 30 years, 70 % women) without gastroesophageal reflux disease (GERD); 50 patients (median age 51 years, 60 % women) with esophageal symptoms of GERD (heartburn, regurgitation); and 50 patients (median age 49 years, 60 % women) with extra-esophageal symptoms of GERD. All individuals underwent manometry and dual-probe pH monitoring. GERD was defined as a DeMeester score >14.7. The proximal/distal reflux ratio was calculated for all six parameters that constitute the DeMeester score.

RESULTS

Absolute numbers for proximal reflux were not different for the three groups except for the number of episodes of reflux, which was higher for patients with GERD and esophageal symptoms than for patients with GERD and extra-esophageal symptoms (p = 0.007). The number of episodes of distal reflux reaching proximal levels was significantly higher in volunteers than in all patients with GERD and significantly higher in patients with GERD and esophageal symptoms than in those with extra-esophageal symptoms.

CONCLUSIONS

Our results suggest that the proximal/distal reflux ratio is not a good normative value for defining proximal reflux.

Outcome of gastro-oesophageal reflux-related respiratory manifestations after laparoscopic fundoplication

AIMS

Patients with refractory respiratory symptoms related to gastro-oesophageal reflux disease (GORD) such as asthma and cough are being referred for laparoscopic fundoplication (LFP), as recommended by the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES). However there are limited data regarding symptomatic response to fundoplication in this group of patients.

METHOD

A 7 year retrospective review was performed to study the efficacy of LFP in the treatment of patients with respiratory manifestations of GORD. Patients were followed up from 4 to 6 weeks (short-term) to 6-12 months (long-term) post-operatively.

RESULTS

Of 208 patients who underwent LFP, 73 (35%) patients were eligible for inclusion into the study. 55 (75%) patients had improved respiratory symptoms at short-term follow-up. At long-term follow-up, 7 of these patients had recurrence of respiratory symptoms, while 4 patients had improvement not initially apparent. No significant predictive factor for the success or failure of surgery was identified. 190 (91%) of 208 patients had symptomatic improvement in GORD at short-term follow-up.

CONCLUSION

LFP is effective with the response rates over 75% in the control of respiratory manifestation of GORD, compared to over 91% response rate in the control GOR symptoms alone. More research is needed to identify factors to aid patient selection to improve response rate.

Long-term patient outcomes after laparoscopic anti-reflux procedures

BACKGROUND

Laparoscopic anti-reflux surgery with or without large hiatal hernia has been shown to have good short-term outcomes. However, limited data are available on long-term outcomes of greater than 5 years. The aim of this study is to review functional and symptomatic outcomes of anit-reflux surgery in a large tertiary referral medical center.

METHODS

Two hundred ninety-seven patients who underwent anti-reflux surgery at the University of Nebraska Medical Center between 2002 and 2013 were included in this study. Patient data including pre- and post-operative studies and symptom questionnaires were prospectively collected and the database was used to analyze postoperative outcomes.

RESULTS

A total of 297 Nissen fundoplications, 35 redo fundoplications and 22 Toupet procedures were performed. Mean BMI was 30.0 ± 6.2. The median follow-up was 70 (6-135) months. There were three reoperations (0.9 %) for recurrent symptoms. Mesh was used in 210 cases where hiatal hernia was larger than 2 cm. Median preoperative DeMeester score was 50.8 ± 46. There was a statistically significant improvement in composite heartburn score (83 % (CI 78.2, 87.7); p < 0.05), regurgitation (81.1 % (CI 76.1, 86.1); p < 0.05), and belching (63 % (CI 56.7, 69.3); p < 0.05). Atypical presentation such as pulmonary (e.g., aspiration (25.8 % (CI 20, 31.6), wheezing (20.3 % (CI 15, 25.6); p < 0.05), and throat symptoms (e.g., laryngitis 28 % (CI 22.1, 33.9); p < 0.05) also improved. Available radiographic studies for patients more than 3 years follow-up show an overall recurrence of 33.9 % (47.8 % in hiatal hernia > 5 cm repaired with mesh). Of those with recurrence, over 84 % were asymptomatic at follow-up.

CONCLUSIONS

This study shows that patients had excellent symptom control and low rates of complications and reoperations in long-term follow-up. We found that typical gastro intestinal symptoms responded better compared with atypical symptoms in spite of clear evidence of reflux on preoperative studies. Hiatal hernia was very commonly seen in our patient population and long-term radiographic follow-up suggest that asymptomatic recurrence may be high but rarely requires any surgical intervention. Anti-reflux surgery with correction of hiatal hernia if present is safe and effective in long-term follow-up.

The pulmonary side of reflux disease: from heartburn to lung fibrosis

INTRODUCTION

Gastroesophageal reflux disease (GERD) is the most prevalent gastrointestinal disorder in the USA. Heartburn is the symptom most commonly associated with this disease, and the highly commercialized medical treatment directed toward relief of this symptom represents a 10-billion-dollar-per-year industry.

DISCUSSION

Unfortunately, there is often little awareness that GERD can be potentially a lethal disease as it can cause esophageal cancer. Furthermore, there is even less awareness about the relationship between GERD and respiratory disorders with the potential for severe morbidity and even mortality.

A preliminary investigation of laparoscopic fundoplication treatment on gastroesophageal reflux disease-related respiratory symptoms

BACKGROUND

Extraesophageal syndromes are more difficult to identify and treat than the usual esophageal symptoms. The current study explores the efficacy of laparoscopic Nissen fundoplication (LNF) on gastroesophageal reflux disease (GERD)-related respiratory symptoms (RSs) during a 12-month follow-up observation.

METHODS

From April 2008 to September 2009, LNF was performed on 198 patients (107 men and 91 women) with GERD-related RSs according to underlying esophageal motility. A questionnaire form ranging from 0 to 5 was the basic requirement for recording pretreatment and posttreatment and for making detailed evaluation of the symptoms. All scores of GERD-related RSs, such as heartburn, regurgitation, coughing, breathe holding, wheezing, shortness of breath, and choking, significantly decreased at the 12th month.

RESULTS

All the patients who participated in the current study were adults and elders aged 22 to 84 years with a mean age of 49 ± 12.89. The median length of stay was 4.3 days with a range of 2 to 8 days. The median score of heartburn, regurgitation, coughing, wheezing, shortness of breath, choking, and chest pain decreased from 4.92 ± 1.99, 4.98 ± 1.81, 7.23 ± 1.87, 7.50 ± 1.88, 5.83 ± 2.13, 5.94 ± 2.22, and 4.92 ± 1.88 to 1.62 ± 2.33, 0.64 ± 1.43, 2.79 ± 2.82, 2.53 ± 2.96, 1.37 ± 2.10, 1.28 ± 2.09, and 1.57 ± 2.55 (P<0.01), respectively. A total of 173 patients had various relieved symptom scores, 16 patients (8.1%) had different scale recurrence of symptoms after laparoscopic fundoplication treatment, and 13 patients had to retreat to omeprazole as an auxiliary medical therapy. Three other patients rejected any therapy, and no deaths occurred. A single patient converted from laparoscopic surgery to open surgery. Several short-term symptoms included retrosternal uneasiness or pain (n = 63; 31.8%), dysphagia (n = 45; 22.7%), abdominal distension (n = 87; 43.9%), and diarrhea (n = 23; 11.6%). Early dysphagia lasting <6 weeks was common, and 45 patients (22.7%) underwent an early esophagogastroduodenoscopy or contrast swallow. Five patients (2.5%) who had prolonged dysphagia during the 6-month clinical review required esophageal dilatation, and the outcomes were successful.

CONCLUSIONS

LNF can be an effective means for treating RSs in patients with GERD.

Gastroesophageal reflux disease and antireflux surgery-what is the proper preoperative work-up?

BACKGROUND

Many surgeons feel comfortable performing antireflux surgery (ARS) on the basis of symptomatic evaluation, endoscopy, and barium esophagography. While esophageal manometry is often obtained to assess esophageal peristalsis, pH monitoring is rarely considered necessary to confirm the diagnosis of gastroesophageal reflux disease (GERD).

AIMS

The aim of this study was to analyze the sensitivity and specificity of symptoms, endoscopy, barium esophagography, and manometry as compared to pH monitoring in the preoperative evaluation of patients for ARS.

PATIENTS AND METHODS

One hundred and thirty-eight patients were referred for ARS with a diagnosis of GERD based on symptoms, endoscopy, and/or barium esophagography. Barium esophagography, esophageal manometry, and ambulatory 24-h pH monitoring were performed preoperatively in every patient.

RESULTS

Four patients were found to have achalasia and were excluded from the analysis. Based on the presence or absence of gastroesophageal reflux on pH monitoring, the remaining 134 patients were divided into two groups: GERD+ (n = 78, 58 %) and GERD- (n = 56, 42 %). The groups were compared with respect to the incidence of symptoms, presence of reflux and hiatal hernia on esophagogram, endoscopic findings, and esophageal motility. There was no difference in the incidence of symptoms between the two groups. Within the GERD+ group, 37 patients (47 %) had reflux at the esophagogram and 41 (53 %) had no reflux. Among the GERD- patients, 17 (30 %) had reflux and 39 (70 %) had no reflux. A hiatal hernia was present in 40 and 32 % of patients, respectively. Esophagitis was found at endoscopy in 16 % of GERD+ patients and in 20 % of GERD- patients. Esophageal manometry showed no difference in the pressure of the lower esophageal sphincter or quality of peristalsis between the two groups.

CONCLUSIONS

The results of this study showed that (a) symptoms were unreliable in diagnosing GERD, (b) the presence of reflux or hiatal hernia on esophagogram did not correlate with reflux on pH monitoring, (c) esophagitis on endoscopy had low sensitivity and specificity, and (d) manometry was mostly useful for positioning the pH probe and rule out achalasia. Ambulatory 24-h pH monitoring should be routinely performed in the preoperative work-up of patients suspected of having GERD in order to avoid unnecessary ARS.

Fundoplication in chronic intractable cough

Background

Airway reflux is a common cause of chronic cough and this is often refractory to medical therapy. Surgery in the form of Nissen fundoplication has been highly successful in the treatment of the classic reflux symptoms of heartburn and dyspepsia. There is a paucity of data regarding response to fundoplication in patients presenting with chronic cough.

Methods

We retrospectively reviewed the case notes of patients from the Hull Cough Clinic who had undergone Nissen fundoplication over the past 6 years. Demographic details, duration of symptoms, presence of other symptoms, results of oesophageal studies, outcome and complications were recorded. Patients were contacted by post and asked to complete a questionnaire detailing current symptoms. In a subgroup with continued troublesome cough 24 hour pharyngeal pH measurements were undertaken.

Results

Forty seven patients underwent fundoplication. The average duration of pre-operative cough was 8 years. Gastro intestinal symptoms were present in the majority. In 30 (64%) patients a positive response to treatment was recorded. Mild dysphagia or bloating was seen in 18 patients following surgery. Four patients needed repeat surgical intervention for modification of fundoplication. One patient developed aspiration pneumonia eight weeks following surgery and died of a myocardial infarction. Two thirds of patients with persisting cough had evidence of airway reflux on pharyngeal pH monitoring.

Conclusion

In these patients with intractable cough a long term response rate of 63% represents a useful therapeutic option. Treatment failure is more frequent than for classic peptic symptoms and may be related to persistent gaseous reflux.

Long-term outcomes after transoral incisionless fundoplication in patients with GERD and LPR symptoms

Background

A retrospective study evaluated safety, symptom resolution, patient satisfaction, and medication use 1–2 years after transoral incisionless fundoplication (TIF) in patients with gastroesophageal reflux disease (GERD) and/or laryngopharyngeal reflux (LPR) symptoms.

Methods

Thirty-four patients with a confirmed diagnosis of GERD symptoms that were inadequately controlled by antisecretory medications, and who where either dissatisfied with their current therapy or not willing to continue taking medication, underwent TIF using EsophyX at our community-based hospital. Follow-up assessments were completed in 28 patients.

Results

Median age of the study group was 57 (range = 23–77) years, BMI was 25.7 (18.3–36.4) kg/m², and 50% were female. All patients had documented chronic GERD for a median 5 (1–20) years and refractory symptoms to proton pump inhibitors (PPIs). Hiatal hernia was present in 75% (21/28) of patients, and 21% (6/28) had erosive esophagitis (LA grade A or B). TIF was performed following a standardized TIF-2 protocol and resulted in reducing hiatal hernia and restoring the natural anatomy of the gastroesophageal (GE) junction (Hill grade I). There were no postoperative complications. At a median 14-months follow-up, 82% (23/28) of patients were off daily PPIs (64% completely off PPIs), and 68% (19/28) were satisfied with their current health condition compared to 4% before TIF. Median GERD Health-Related Quality of Life scores were significantly reduced to 4 (0–25) from 26 (0–45) before TIF (P < 0.001). Heartburn was eliminated in 65% (17/26) and improved by >50% in 86% (24/28) of patients. Regurgitation was eliminated in 80% (16/20) of patients. Atypical LPR symptoms such as hoarseness, coughing, and throat clearing were eliminated in 63% (17/27) of patients as measured by Reflux Symptom Index scores.

Conclusion

Our results in 28 patients confirm the safety and effectiveness of TIF, documenting symptomatic improvement of GERD and LPR symptoms and clinically significant discontinuation of daily PPIs in 82% of patients.

Current applications of evolving methodologies in gastroesophageal reflux disease testing

Until recently catheter-based 24-h pH monitoring has been the primary methodology for the objective diagnosis of gastroesophageal reflux disease. Yet, this system has some drawbacks, such as patient discomfort, marginal sensitivity, and the inability to detect nonacid reflux. Hampered by these limitations, several new techniques have been recently introduced in clinical practice. In particular, wireless capsule pH monitoring and multichannel intraluminal impedance-pH testing have been forwarded as more sophisticated means of enhancing patient comfort during testing as well as our ability to diagnose gastroesophageal reflux disease, especially in those patients who complain of symptoms of gastroesophageal reflux disease despite adequate acid suppression therapy. The goal of this review is to compare the clinical applicability, advantages and drawbacks of catheter-based 24-h pH testing, wireless capsule pH monitoring, and multichannel intraluminal impedance-pH.

Value of preoperative esophageal function studies before laparoscopic antireflux surgery

BACKGROUND

The value of esophageal manometry and ambulatory pH monitoring before laparoscopic antireflux surgery (LARS) has been questioned because tailoring the operation to the degree of hypomotility often is not required. This study evaluated a consecutive cohort of patients referred for esophageal function studies in preparation for LARS to determine the rates of findings that would alter surgical decisions.

METHODS

High-resolution manometry (HRM) was performed for each subject using a 21-lumen water-perfused system, and motor function was characterized. Gastroesophageal reflux disease (GERD) was evident from ambulatory pH monitoring if thresholds for acid exposure time and/or positive symptom association probability were passed.

RESULTS

Of 1,081 subjects (age, 48.4 ± 0.4 years; 56.7% female) undergoing preoperative HRM, 723 (66.9%) also had ambulatory pH testing performed. Lower esophageal sphincter (LES) hypotension (38.9%) and nonspecific spastic disorder (NSSD) of the esophageal body (36.1%) were common. Obstructive LES pathophysiology was noted in 2.5% (achalasia in 1%; incomplete LES relaxation in 1.5%), and significant esophageal body hypomotility in 4.5% (aperistalsis in 3.2%; severe hypomotility in 1.3%) of the subjects. Evidence of GERD was absent in 23.9% of the subjects. Spastic disorders were more frequent in the absence of GERD (43.9% vs. 23.1% with GERD; p < 0.0001), whereas hypomotility and normal patterns were more common with GERD.

CONCLUSIONS

Findings considered absolute or relative contraindications for standard 360º fundoplication are detected in 1 of 14 patients receiving preoperative HRM. Additionally, spastic findings associated with persistent postoperative symptoms are detected at esophageal function testing that could be used in preoperative counseling and candidate selection. Physiologic testing remains important in the preoperative evaluation of patients being considered for LARS.

Heterotopic gastric mucosal patch in patients with reflux laryngitis: an entity of clinical interest?

Heterotopic gastric mucosal patch (HGMP) in the upper esophagus has been suggested to play a role in the pathogenesis of laryngopharyngeal reflux. The aim of this study was to evaluate the prevalence and possible clinical significance of HGMPs in patients who underwent laparoscopic Nissen fundoplication for gastroesophageal reflux disease-induced reflux laryngitis.Forty consecutive patients with pH-proven reflux laryngitis referred to surgery by a specialist in otorhinolaryngology underwent laparoscopic Nissen fundoplication between 1998 and 2002. Twenty-seven (67.5%) of these patients underwent a postoperative upper gastrointestinal endoscopy paying special attention for detecting possible HGMPs in the proximal esophagus. When HGMP was found, biopsies were taken for histologic confirmation. A small histologically confirmed HGMP was detected in 1 out of 27 patients (3.7%). The prevalence of HGMPs in the upper esophagus in this specific patient group operated on for gastroesophageal reflux disease-induced reflux laryngitis equals the reported general prevalence rates of HGMPs detected in patients referred for upper gastrointestinal endoscopy as a part of gastrointestinal tract evaluation. The role of at least small HGMPs in the proximal esophagus in the pathogenesis of laryngopharyngeal reflux is clinically insignificant.

Gastroesophageal reflux and altered motility in lung transplant rejection

BACKGROUND

Lung transplantation has become an effective therapeutic option for selected patients with end stage lung disease. Long-term survival is limited by chronic rejection manifest as bronchiolitis obliterans syndrome (BOS). The aspiration of gastric contents has been implicated as a causative or additive factor leading to BOS. Gastroesophageal reflux (GER) and altered foregut motility are common both before and after lung transplantation. Further, the normal defense mechanisms against reflux are impaired in the allograft. Recent studies using biomarkers of aspiration have added to previous association studies to provide a growing body of evidence supporting the link between rejection and GER. Further, the addition of high-resolution manometry (HRM) and impedance technology to characterize bolus transit and the presence and extent of reflux regardless of pH might better identify at-risk patients. Although additional prospective studies are needed, fundoplication appears useful in the prevention or treatment of post-transplant BOS.

PURPOSE

This review will highlight the existing literature on the relationship of gastroesophageal reflux and altered motility to lung transplant rejection, particularly BOS. The article will conclude with a discussion of the evaluation and management of patients undergoing lung transplantation at our center.

The evolution of oesophageal function testing and its clinical applications in the management of patients with oesophageal disorders

The last decade has brought significant technical advances in laparoscopic surgery. In this constantly evolving technological climate, less told is the story of the evolution of diagnostic technology that improved the clinical management of patients with oesophageal disorders. The successful outcome of the laparoscopic treatment of oesophageal disorders is due to a combination of three different factors: the skills and the ability of the foregut surgeon, the high volume of referral, the expertise in the critical evaluation of the oesophageal function tests. This is an art per se, and it is rarely acknowledged in the achievement of the excellent results of surgery. Oesophageal function testing provides the clinician with information that cannot be obtained by the clinical, endoscopic, and radiological evaluation of patients. This expertise, intimately coupled with the other factors, allows the surgeon to better understand the pathophysiology of these diseases and to provide the optimal management. Therefore, it is essential to understand the evolution that this technology is currently undergoing, and how these changes are expanding the current indications for antireflux surgery by identifying additional predictors of successful outcome.

A new technique for measurement of pharyngeal pH: normal values and discriminating pH threshold

INTRODUCTION

Identifying gastroesophageal reflux disease as the cause of respiratory and laryngeal complaints is difficult and depends largely on the measurements of increased acid exposure in the upper esophagus or ideally the pharynx. The current method of measuring pharyngeal pH environment is inaccurate and problematic due to artifacts. A newly designed pharyngeal pH probe to avoid these artifacts has been introduced. The aim of this study was to use this probe to measure the pharyngeal pH environment in normal subjects and establish pH thresholds to identify abnormality.

METHODS

Asymptomatic volunteers were studied to define the normal pharyngeal pH environment. All subjects underwent esophagram, esophageal manometry, upper and lower esophageal pH monitoring with a dual-channel pH catheter and pharyngeal pH monitoring with the new probe. Analyses were performed at 0.5 pH intervals between pH 4 and 6.5 to identify the best discriminating pH threshold and calculate a composite pH score to identify an abnormal pH environment.

RESULTS

The study population consisted of 55 normal subjects. The pattern of pharyngeal pH environment was significantly different in the upright and supine periods and required different thresholds. The calculated discriminatory pH threshold was 5.5 for upright and 5.0 for supine periods. The 95th percentile values for the composite score were 9.4 for upright and 6.8 for supine.

CONCLUSION

A new pharyngeal pH probe which detects aerosolized and liquid acid overcomes the artifacts that occur in measuring pharyngeal pH with existing catheters. Discriminating pH thresholds were selected and normal values defined to identify patients with an abnormal pharyngeal pH environment.

Symptoms experienced during 24-h pH monitoring and their relationship to outcome after laparoscopic total fundoplication

Some patients having a 24-h pH monitoring test prior to laparoscopic fundoplication experience no symptoms at all in spite of having a positive test, and other patients experience only atypical symptoms in spite of having a positive test. This study investigates the postoperative outcome of such patients. All patients underwent esophageal manometry and 24-h esophageal pH monitoring before laparoscopic total fundoplication. Patients were divided into three groups based on their symptom profile recorded during a positive 24-h pH monitoring: those with typical symptoms (n = 104), those with atypical symptoms (n = 28) and those who experienced no symptoms at all (n = 23). The outcomes measured were heartburn score (0-10), dysphagia composite score (0-45) and satisfaction score (0-10) at 12 months after surgery. Outcome analysis reveals the heartburn scores were significantly reduced postoperatively for all groups of patients. At 1 year after surgery, there was no difference among the three groups of patients in terms of heartburn score and dysphagia composite scores, nor the experience of bloating, belching, or their willingness to repeat surgery. Despite one group experiencing no symptoms, and another group atypical symptoms during a positive pH study, the postoperative satisfaction scores for these two groups was good, but significantly less (P = 0.03, P = 0.02, respectively) than the group of patients with a typical symptom index. In conclusion, patients who experience only atypical symptoms or no symptoms at all during their preoperative positive 24-h pH monitoring may still obtain a good result from antireflux surgery. However, these symptom profiles should alert the surgeon that such patients may have an outcome which is not as good as patients who experience only typical symptoms during a pH study.

Lung transplantation in patients with connective tissue disorders and esophageal dysmotility

Lung and esophageal dysfunction are common in patients with connective tissue disease (CTD). Recent reports have suggested a link between pathologic gastroesophageal reflux and bronchiolitis obliterans syndrome (BOS) after lung transplant. Because patients with CTD have a high incidence of esophageal dysmotility and reflux, this group may be at increased risk of allograft dysfunction after lung transplantation. Little is known about antireflux surgery in these patients. Our aims were to describe: (i) the esophageal motility and reflux profile of patients with CTD referred for lung transplantation; and (ii) the safety and outcomes of laparoscopic fundoplication in this group. A retrospective review of 26 patients with CTD referred for lung transplantation between July 2003 and June 2007 at a single center. Esophageal studies included manometry and ambulatory 24-h pH monitoring. Twenty-three patients had esophageal manometry and ambulatory 24-h pH monitoring. Nineteen patients (83%) had pathologic distal reflux and 7 (30%) also had pathologic proximal reflux. Eighteen patients (78%) had impaired or absent peristalsis. Eleven of 26 patients underwent lung transplantation. Ten patients are alive at a median follow-up of 26 months (range 3-45) and one has bronchiolitis obliterans syndrome-1. Six patients had a laparoscopic fundoplication, 1 before transplantation and 5 after. All fundoplication patients are alive at median follow-up of 25 months (range 19-45). In conclusion, esophageal dysmotility and reflux are common in CTD patients referred for lung transplant. For this group, laparoscopic fundoplication is safe in experienced hands.

Long-term outcomes of laparoscopic antireflux surgery for gastroesophageal reflux disease (GERD)-related airway disorder

A strong link exists between gastroesophageal reflux disease (GERD) and airway diseases. Surgical therapy has been recommended as it is more effective than medical therapy in the short-term, but there is little data on the effectiveness of surgery long-term. We analyzed the long-term response of GERD-related airway disease after laparoscopic anti-reflux surgery (LARS).

METHODS

In 2004, we contacted 128 patients with airway symptoms and GERD who underwent laparoscopic antireflux surgery (LARS) between 12/1993 and 12/ 2002. At median follow-up of 53 months (19-110 mo) we studied the effects on symptoms, esophageal acid exposure, and medication use and we analyzed the data to determine predictors of successful resolution of airway symptoms.

RESULTS

Cough, hoarseness, wheezing, sore throat, and dyspnea improved in 65-75% of patients. Heartburn improved in 91% (105/116) of patients and regurgitation in 92% (90/98). The response rate for airway symptoms was the same in patients with and without heartburn. Almost every patient took proton pump inhibitors (PPIs) preoperatively (99%, 127/128) and 61% (n = 78) were taking double or triple dose. Postoperatively, 33% (n = 45) of patients were using daily antiacid therapy but no one was on double dose. The only factor that predicted a successful surgical outcome was the presence of abnormal reflux in the pharynx as determined by 24-hour pharyngeal pH monitoring. One hundred eleven (87%) patients rated their results as excellent (n = 78, 57%) or good (n = 33, 24%).

CONCLUSION

LARS provides an effective and durable barrier to reflux, and in so doing improves GERD-related airway symptoms in approximately 70% of patients and improves typical GERD symptoms in approximately 90% of patients. Pharyngeal pH monitoring identifies those patients more likely to benefit from LARS, but better diagnostic tools are needed to improve the response of airway symptoms to that of typical esophageal symptoms.

Review article: respiratory manifestations of gastro-oesophageal reflux disease

BACKGROUND

Respiratory manifestations represent one of the most prevalent and difficult-to-manage extra-oesophageal syndromes of gastro-oesophageal reflux disease.

AIMS

To review the epidemiology, pathophysiological mechanisms and therapeutic outcomes of reflux-related respiratory disorders.

METHODS

Search of the literature published in English using PubMed database.

RESULTS

There is a discrepancy between the high prevalence of reflux in asthmatics and the limited efficacy of antireflux therapies. Asthma per se may cause reflux. Patients with difficult-to-treat asthma and/or nocturnal symptoms should be screened for reflux. Reflux can induce chronic cough through different mechanisms including micro-aspiration and both local and central reflexes. Cough and reflux may precipitate each other. A meta-analysis found no significant difference between placebo and proton pump inhibitors in the resolution of cough. Encouraging results have been reported, following antireflux surgery in patients selected on the basis of pH-impedance monitoring. Attention has been drawn to obstructive sleep apnoea syndrome.

CONCLUSIONS

The role of gastro-oesophageal reflux disease in the pathogenesis of miscellaneous respiratory disorders has been discussed for decades and established in asthma and cough. However, no major therapeutic advances have been reported recently. Future trials should concentrate on patient selection and the control of efficacy using recently developed technologies, such as pH-impedance monitoring.

Reflux Laryngitis: A Feasible Indication for Laparoscopic Antireflux Surgery?

Laparoscopic fundoplication is a routine surgical approach in the treatment of moderate or severe gastro-esophageal reflux disease. However, there are still contradictions regarding supraesophageal symptoms as an indication for surgery. The aim of this study was to determine the subjective symptomatic outcome and objective laryngeal findings after antireflux surgery in patients with pH monitoring proven reflux laryngitis. Between 1998 and 2002, 40 patients with reflux laryngitis underwent laparoscopic Nissen fundoplication. Patients were referred to surgery and followed-up by a specialist in otorhinolaryngology. Subjective symptoms were collected by a structured questionnaire at a median follow-up of 42 months. The objective laryngeal findings improved from the preoperative situation; at 12 months after surgery, the otorhinolaryngeal status was improved in 92.3% (n=24) of the patients. However, only 38.5% (n=10) of these patients evaluated an improvement in their voice quality. Of all, 62.5% (n=25) of the patients reported no or only mild cough or voice hoarseness symptoms postoperatively, 22.5% (n=9) had moderate symptoms, and 15.0% (n=6) suffered from difficult supraesophageal symptoms. Ninety-five percent of the patients regarded the result of their surgery excellent, good, or satisfactory. Of all, 82.5% (n=33) of the patients would still choose surgery, 7.5% (n=3) would abstain from surgery, and 10% (n=4) of the patients were hesitant about their choice. For patients suffering from supraesophageal symptoms of gastro-esophageal reflux disease with objective evidence of pharyngeal acid exposure, laparoscopic Nissen fundoplication provides a good and alternative adding to current treatment.

The prevalence of distal and proximal gastroesophageal reflux in patients awaiting lung transplantation

OBJECTIVE

To determine the prevalence and proximal extent of gastroesophageal reflux (GERD) in patients awaiting lung transplantation.

BACKGROUND

GERD has been postulated to contribute to accelerated graft failure in patients who have had lung transplantations. However, the prevalence of reflux symptoms, esophageal motility abnormalities, and proximal esophageal reflux among patients with end-stage lung disease awaiting lung transplantation are unknown.

METHODS

A total of 109 patients with end-stage lung disease awaiting lung transplantation underwent symptomatic assessment, esophageal manometry, and esophageal pH monitoring (using a probe with 2 sensors located 5 and 20 cm above the lower esophageal sphincter).

RESULTS

Reflux symptoms were not predictive of the presence of reflux (sensitivity, 67%; specificity, 26%). Esophageal manometry showed a high prevalence of a hypotensive lower esophageal sphincter (55%) and impaired esophageal peristalsis (47%) among patients with reflux. Distal reflux was present in 68% of patients and proximal reflux was present in 37% of patients.

CONCLUSIONS

These data show that in patients with end-stage lung disease: 1) symptoms were insensitive and nonspecific for diagnosing reflux; 2) esophageal motility was frequently abnormal; 3) 68% of patients had GERD; 4) in 50% of the patients with GERD, acid refluxed into the proximal esophagus. We conclude that patients with end-stage lung disease should be screened with pH monitoring for GERD.

Laparoscopic Nissen fundoplication offers High Patient Satisfaction with Relief of Extraesophageal Symptoms of Gastroesophageal Reflux Disease

Nissen fundoplication is applied for patients with gastroesophageal reflux disease (GERD), usually because of symptoms of esophageal injury. When presenting symptoms are extraesophageal, there is less enthusiasm for operative control of reflux because of concerns of etiology and efficacy. This study was undertaken to evaluate the efficacy of laparoscopic Nissen fundoplication in palliating extraesophageal symptoms of GERD. Patients were asked to score their symptoms before and after laparoscopic Nissen fundoplication on a Likert scale (0 = never/none to 5 = always/every time I eat). A total of 322 patients with extraesophageal symptoms (asthma, cough, gas/bloat, chest pain, and odynophagia) of 4 to 5 were identified and analyzed. After fundoplication, all extraesophageal symptom scores improved (P < 0.0001 for all, Wilcoxon matched-pairs test). Likewise, postoperative symptoms were noted to be greatly improved or resolved in 67 per cent to 82 per cent of patients for each symptom. Furthermore, after fundoplication, patients were less likely to modify their dietary (82% vs 49%) or sleeping habits (70% vs 28%) to avoid initiating/exacerbating symptoms. Although extraesophageal symptoms are conventionally thought to be inadequately palliated by surgery, this study documents excellent relief of extraesophageal symptoms after laparoscopic Nissen fundoplication, denotes high patient satisfaction, and encourages application of laparoscopic Nissen fundoplication.

Citric acid cough threshold in patients with gastroesophageal reflux disease rises after laparoscopic fundoplication

BACKGROUND

It has been reported that antireflux surgery can diminish chronic cough due to gastroesophageal reflux disease (GERD) that is resistant to pharmacologic therapy. The aim of this study was the assessment of citric acid cough threshold (CACT) in patients with chronic cough due to GERD before and 3 months after laparoscopic Toupet fundoplication.

METHODS

Thirty subjects (20 women and 10 men; median age, 45.3 years) with chronic cough due to GERD and 15 healthy volunteers underwent cough challenge with doubling concentrations of citric acid. Twenty subjects with GERD, a group of 14 women and 6 men (mean age, 45.5 years), underwent the same protocol 3 months after laparoscopic fundoplication. Daytime and nighttime cough score questionnaires (verbal category descriptive score) were completed in all groups.

RESULTS

The geometric mean of CACT was significantly lower in GERD patients (9.62 mg/mL) than in healthy volunteers (50.8 mg/mL, p < 0.001). The results of cough score measurement significantly improved within 2 weeks after laparoscopic surgery. In 13 weeks of postoperative follow-up, cough disappeared or was greatly improved in 14 of the 20 patients (70%); in 3 other patients, cough resolved partially. In three patients. there was no improvement in cough. Cough challenge after surgery revealed a significant increase in mean cough threshold, from 8.28 to 19.03 mg/mL (p < 0.05).

CONCLUSIONS

The results suggest that GERD influences CACT, which was significantly lower in GERD patients compared to healthy subjects. A significant correlation was found between subjective and objective measurements of cough in GERD patients. We found laparoscopic fundoplication to be objectively beneficial in GERD-induced chronic cough, as it reduced the CACT.

European multicenter survey on the laparoscopic treatment of gastroesophageal reflux in patients aged less than 12 months with supraesophageal symptoms

BACKGROUND

This multicenter survey includes neonates and infants who underwent surgery for primary gastroesophageal reflux (GER) who presented with supraesophageal symptoms of unknown origin with a minimum of 12 months postoperative follow-up.

METHODS

A total of 726 patients underwent GER surgery in 10 European Centers in the period 1998-2002. Respiratory symptoms were present in 204 patients (28%); 135 patients (17%) had surgery under 1 year of age, and 46 of them (6.3%) because of respiratory symptoms. Surgery was performed without any previous medical treatment in 10 cases (21%). The type of procedure included 37 complete 360 degrees wraps (80%) (Nissen, 12, and Rossetti, 25) and nine partial wraps (20%) (Thal five, Lortat Jacob one, Toupet one, others two). Gastrostomy was associated in 17 cases (37%) (6 PEG and 11 modified Stamm). No gastric emptying procedures were recorded.

RESULTS

No major intraoperative complications were reported. Six patients developed complications (13%) and a redo operation was performed in three (6.5%). Respiratory outcome after antireflux surgery was good in 35 patients (76%) and fair with significantly improved respiratory symptoms in 11 (24%).

CONCLUSIONS

This multicenter survey underlines that GER has to be suspected and aggressively treated in infants with difficult-to-treat supraesophageal symptoms, and also in high-risk cases, in order to prevent major complications.

Laparoscopic antireflux surgery provides excellent results and quality of life in gastroesophageal reflux disease patients with respiratory symptoms

Medical and surgical treatment are able to improve symptoms in patients with gastroesophageal reflux disease (GERD). The aim of this study was to evaluate the outcome following laparoscopic antireflux surgery in GERD patients with primary respiratory-related symptoms and to investigate the quality of life index before and after therapy. Three hundred thirty-eight consecutive patients underwent surgical treatment for GERD-induced symptoms. Of this group 126 patients had primary respiratory symptoms related to GERD. All patients were studied by means of a symptom questionnaire, endoscopy, esophageal manometry, 24-hour esophageal pH monitoring, and a barium esophagogram. In addition, the quality of life was measured by the means of the Gastrointestinal Quality of Life Index (GIQLI). All patients had medical therapy with proton pump inhibitors preoperatively. A laparoscopic fundoplication was performed in all patients. The outcome was assessed 3 and 12 months postoperatively. Following surgery, all respiratory symptoms were significantly improved. While GIQLI was highly impaired before surgical therapy, a significant improvement of quality of life was obtained. Because medical treatment is likely to fail in GERD patients with respiratory symptoms, the need for surgery arises and may be the only successful treatment in the long term. Quality of life was significantly improved by surgical treatment.

Value of extended recording time with wireless pH monitoring in evaluating gastroesophageal reflux disease

BACKGROUND & AIMS

Extending an ambulatory pH study by using a wireless capsule system could improve diagnosis of gastroesophageal reflux disease in patients with symptoms potentially related to acid reflux events. We determined the relative value of a 2-day versus a 1-day study in detection of abnormal esophageal acid exposure and reflux symptom associations.

METHODS

Subjects who had undergone pH monitoring with the wireless system for symptom evaluation and who had at least 1 typical or atypical symptom during monitoring were studied (n = 157). Acid exposure time, symptom index, and a measure of reflux-associated symptom probability were calculated after 1 day of recording and compared to final results from analysis of 2 days of data.

RESULTS

Extending recording time increased the number of subjects recording symptoms by 6.8% and doubled the number of symptoms available for association with acid reflux events. Other advantages were greater in subjects off antireflux therapy, wherein lengthening recording time increased the proportion of subjects with abnormal acid exposure time by 12.4% and significantly increased the likelihood of a positive reflux symptom relationship in subjects with atypical symptoms. Accuracy of a 1-day study ranged from 0.87-0.88 for acid exposure time to as low as 0.72-0.87 for the probability test, the most sensitive of the symptom association tests.

CONCLUSIONS

Extending recording time to 2 days with the wireless pH monitoring system increases the likelihood of detecting reflux disease in patients undergoing symptom evaluation. Benefits are most evident for subjects with atypical symptoms and for establishing reflux symptom associations by probability testing.

Gastroesophageal reflux: a potential asthma trigger

Gastroesophageal reflux (GER) is a potential trigger of asthma. Approximately 77% of asthmatics report heartburn. GER is a risk factor for asthma-related hospitalization and oral steroid burst use. Asthmatics may be predisposed to GER development because of a high prevalence of hiatal hernia and autonomic dysregulation and an increased pressure gradient between the abdominal cavity and the thorax, over-riding the lower esophageal sphincter pressure barrier. Asthma medications may potentiate GER. Potential mechanisms of esophageal acid-induced bronchoconstriction include a vagally mediated reflex, local axonal reflexes, heightened bronchial reactivity, and microaspiration, all resulting in neurogenic inflammation. Anti-reflux therapy improves asthma symptoms in approximately 70% of asthmatics with GER. A 3-month empiric trial of twice-daily proton pump inhibitor given 30 to 60 minutes before breakfast and dinner can identify asthmatics who have GER as a trigger of their asthma.

Hoarseness and misdirected swallowing before and after antireflux surgery

CONCLUSION

Patients with hiatus hernia can be relieved from H, MSL and MSN by hiatus hernia repair.

OBJECTIVE

It has been hypothesized that respiratory symptoms in patients with gastro-oesophageal reflux disease (GORD) may, in some cases, be due to misdirected swallowing as a consequence of defective opening of the upper oesophageal sphincter. The aim of this study was to investigate whether patients with hiatus hernia are relieved from symptoms of misdirected swallowing to the larynx (MSL) and nose (MSN), as well as hoarseness (H), as a result of hiatus hernia repair.

MATERIAL AND METHODS

A questionnaire concerning symptoms of H, MSL and MSN was administered to 90 patients under investigation for hiatus hernia repair before and after surgery.

RESULTS

Before surgery, MSL occurred in 30% of patients, MSN in 30% and H in 25%. These symptoms were significantly interrelated (p <0.008). After antireflux surgery, all symptoms were significantly reduced (p <0.001). Symptom reduction was not related to the weight of the patients.

Does laparoscopic fundoplication provide long-term control of gastroesophageal reflux related cough?

BACKGROUND

Of patients with chronic cough, 21% have GERD. Up to half of these patients may not respond adequately to medical, but the long-term results of antireflux surgery for cough is unknown.

METHODS

A total of 905 patients (209 with respiratory symptoms, mainly cough) underwent laparoscopic Nissen fundoplication. Preoperatively patients underwent esophageal motility studies, 24-h pH monitoring, and symptom evaluation using a validated scale. Of eligible patients, 81% were followed at 6 months, 73% at 2 years, and 60% at 5 years.

RESULTS

Before surgery, 83% of respiratory patients (RP) and 51% of nonrespiratory patients (NRP) had cough. RP had higher cough scores ( p < 0.0001), but improvement in cough compared to baseline was similar in the RP and NRP ( p = 0.1105 at 6 months, 0.4206 at 2 years, and 0.1348 at 5 years). Cough improved in 83% at 6 months, 74% at 2 years, and 71% at 5 years.

CONCLUSIONS

Laparoscopic Nissen fundoplication is successful in the long-term control of GERD-related cough, even in patients who fail medical therapy.

Outcome of laparoscopic Nissen-Rossetti fundoplication in children with gastroesophageal reflux disease and supraesophageal symptoms

BACKGROUND

The role of surgery is debated for children with gastroesophageal reflux disease (GERD), particularly when they show atypical symptoms. This study was designed to evaluate the safety and outcome of laparoscopic Nissen-Rossetti fundoplication performed in a selected population of children with gastroesophageal reflux and atypical supraesophageal symptoms.

METHODS

This prospective study included 595 patients younger than 14 years with GERD who reported recurrent respiratory symptoms and had no benefit from standard medical treatment. Surgery was performed for 48 patients with anatomic anomalies, life-threatening events, or respiratory complications after ineffective medical treatment. The subjective and objective outcomes were evaluated.

RESULTS

No major intraoperative complications were experienced, and there was no recurrence of gastroesophageal reflux during a postoperative follow-up period of 12 months. The parents' final subjective evaluation of the outcomes 12 months after surgery was positive in 44 cases and negative in 4 cases.

CONCLUSIONS

Children with difficult-to-treat chronic respiratory symptoms must be evaluated for GERD, even if the need for surgery is low (8%), because complete eradication of reflux is mandatory. Radical treatment of GERD allows the pulmonologist to perform correct respiratory treatment and to prevent the development chronic and life-threatening complications.