Laparoscopic antireflux surgery in patients with throat symptoms: a word of caution

Antireflux surgeries and hiatal repair: keys to success

INTRODUCTION

Gastroesophageal reflux is common, and when medical therapy is ineffective, alternative treatments should be considered. Nissen fundoplication controls reflux but can be followed by side effects such as dysphagia and flatulence. To improve outcomes, modifications have been advocated.

AREAS COVERED

Modifications to Nissen fundoplication and newer procedures for gastroesophageal reflux aim to improve overall outcome. Randomized controlled trials (RCTs) and long-term outcomes from large cohorts are prioritized to consider the optimal procedure for reflux and hiatus hernia.

EXPERT OPINION

Fundoplication is an effective treatment for gastroesophageal reflux, with success rates of >80% reported at 18-20-year follow-up. RCTs confirm that Nissen fundoplication delivers better reflux control than medication. However, some patients are troubled by side effects. Anterior and posterior partial fundoplication variants have been proposed as procedures that offer equally good reflux control, but fewer side effects, and RCTs have confirmed this with follow-up to 20 years. Which partial fundoplication is better is debated. Alternative laparoscopic or endoscopic approaches require expensive implants or equipment and deliver less reliable reflux control than partial fundoplication. Currently, level I evidence confirms that laparoscopic partial fundoplication delivers the optimal outcome in fit patients with reflux that is not well controlled by medication.

Gastroesophageal reflux disease, laryngopharyngeal reflux, and vocal cord dysfunction/inducible laryngeal obstruction-overlapping conditions that affect asthma

Asthma is a chronic lung condition that may be affected by numerous medical comorbidities. Such comorbidities can influence the presentation and even the severity of asthma. Alternatively, asthma may be misdiagnosed as a comorbidity when symptoms overlap. The 3 medical conditions that commonly affect asthma management are gastroesophageal reflux disease, laryngopharyngeal reflux, and vocal cord dysfunction/inducible laryngeal obstruction). These conditions can be difficult to distinguish from one another, as well as from asthma itself. In this review, the epidemiology, pathophysiology, symptomatology, and diagnostic considerations of each condition in both adult and pediatric populations are discussed. Treatment options, as well as how such options may influence asthma outcomes, are included. Finally, knowledge gaps in each area are highlighted, as a better understanding of the optimal diagnostic and therapeutic approaches will allow for improved individualized care of patients with asthma.

Magnetic Sphincter Augmentation for Laryngopharyngeal Reflux: An Assessment of Efficacy and Predictors of Outcome

INTRODUCTION

Magnetic sphincter augmentation (MSA) is an effective treatment for typical reflux symptoms, but data on its impact on laryngopharyngeal reflux (LPR) is limited. This study aimed to determine the efficacy of MSA for LPR and to identify predictors of outcome.

METHODS

This was a retrospective review of 775 patients who underwent MSA between 2013 and 2021. LPR was defined as presence of atypical reflux symptoms and a reflux symptom index (RSI) score >13. Favorable outcome was defined as primary symptom resolution, freedom from proton pump inhibitors, and five-point improvement or RSI score normalization. Preoperative clinical, high-resolution manometry, and impedance-pH data were analyzed for impact on favorable outcome using univariate followed by multivariable analysis.

RESULTS

There were 128 patients who underwent MSA for LPR. At a mean (SD) follow-up of 13 (5.4) months, favorable outcome was achieved by 80.4% of patients, with median (IQR) RSI score improving from 29 (22-35) to 9 (4-17), (P < 0.001). Independent predictors of favorable outcome on multivariable analysis included LPR with typical reflux symptoms [OR (95% CI): 8.9 (2.3-31.1), P = 0.001], >80% intact swallow on high-resolution manometry [OR (95% CI): 3.8 (1.0-13.3), P = 0.035], upper esophageal sphincter (UES) resting pressure >34 mmHg [OR (95% CI): 4.1 (1.1-14.1), P = 0.027] and short total proximal acid clearance time [OR (95% CI): 1.1 (1.0-1.1), P = 0.031]. Impedance parameters including number of LPR events, full column reflux and proximal acid exposure events were similar between outcome groups (P > 0.05).

CONCLUSION

MSA is an effective surgery for patients with LPR. Patients with concomitant typical reflux symptoms, normal esophageal body motility, and competent UES benefit the most from surgery. Individual impedance-pH parameters were not associated with outcome.

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.

Surgical Treatment for Laryngopharyngeal Reflux Disease: A Systematic Review

IMPORTANCE

Laryngopharyngeal reflux (LPR) is a prevalent disease that is usually treated with diet, lifestyle modifications, and proton pump inhibitor therapy. However, nearly 10% to 30% of patients do not achieve adequate acid suppression even with high doses of proton pump inhibitors. For these patients with resistant disease, fundoplication may be recommended but the success rate of fundoplication surgery on laryngopharyngeal symptoms and findings remains uncertain.

OBJECTIVE

To determine whether fundoplication is associated with control of signs and symptoms in patients with LPR.

EVIDENCE REVIEW

A literature search was conducted on PubMed, Cochrane Library, and Scopus according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting guideline to identify studies published between 1990 and 2018 about the efficacy of fundoplication on clinical outcomes of LPR. Three investigators screened publications for eligibility and exclusion based on predetermined criteria. Study design, patient characteristics, diagnostic method, exclusion criteria, treatment characteristics, follow-up, and quality of the outcome assessment were evaluated.

FINDINGS

Of the 266 studies identified, 34 met the inclusion criteria, accounting for 2190 patients with LPR (1270 women and 920 men; mean [SD] age at the time of surgery, 49.3 [6.3] years). A weighted mean of 83.0% of patients (95% CI, 79.7%-86.3%) experienced improvement and a weighted mean of 67.0% of patients (95% CI, 64.1%-69.9%) experienced a disappearance of symptoms, but there is a high level of methodological heterogeneity among studies according to diagnostic method, exclusion criteria, and outcomes used to assess the efficacy of fundoplication. A pH study without impedance study was used in most studies but with various inclusion criteria. According to results of an a priori assessment, the clinical outcomes used were overall poor, excluding many symptoms and findings associated with LPR.

CONCLUSION AND RELEVANCE

The reported studies of fundoplication in LPR disease have important heterogeneity in method of diagnosis, exclusion criteria, symptoms, and signs assessed as therapeutic outcomes; therefore, this systematic review was nonconclusive regarding whether surgery for LPR disease is associated with effective control of sight and symptoms. Otolaryngologists, gastroenterologists, and surgeons must establish a diagnostic criterion standard, clear indications for surgery, and future clinical outcomes to precisely assess the effectiveness of treatment.

Proton Pump Inhibitors for the Treatment of Laryngopharyngeal Reflux. A Systematic Review

BACKGROUND

To give, if possible, an answer in the long-standing debate of the efficacy of proton pump inhibitors (PPIs) in treating laryngopharyngeal reflux (LPR) through published systematic reviews and meta-analyses.

METHOD

PubMed, Cochrane Library, and EMBASE were searched from 1984, the year the term LPR first appeared in the literature, until October 2018. Systematic reviews and meta-analyses comparing the treatment response of PPI therapy in patients with LPR were included in our study.

RESULTS

Nine eligible studies, two systematic reviews and seven meta-analyses, were identified and analyzed in our study. Three of these were published in 2006, one in 2007, one in 2013, and four in 2016. Five studies published before 2016 and one in 2016 showed no benefit from PPI therapy for LPR patients while the three remaining meta-analyses of 2016 showed a significant improvement in LPR symptoms but no significant difference in response rate and reflux finding scores (RFS) between PPI therapy and placebo treatment.

CONCLUSIONS

Based on the existing data, the use of PPI therapy for the treatment of LPR remains questionable. Six out of the nine systematic reviews/meta-analyses concluded that PPI therapy is not superior to placebo and three concluded that PPI therapy significantly improved LPR symptoms although they did not identify any difference in the post-treatment laryngoscopic findings. There is still a long way to go until we can give a definite answer to this question but in the meantime, the use of PPI therapy for the treatment of LPR will continue even though existing evidence is poor and weak, coming mainly from individual uncontrolled studies.

Laryngopharyngeal reflux: clinical significance, modern approaches to diagnosis and treatment

Gastroesophageal reflux disease (GERD) is one of the most common pathologies in modern clinical practice. Laryngopharyngeal reflux (LPR) is considered to be an extraesophageal manifestation of GERD and is characterized by retrograde ingestion of gastric content into the larynx and pharynx, leading to recurrent otolaryngological symptoms. Classical manifestations of LPR are hoarseness, perspiration, dryness and feeling of lump in the throat, coughing. There is no «gold standard» for the diagnosis of LPR. At the same time, several instrumental methods are used in clinical practice to verify the diagnosis: laryngoscopy and EGDS are the most common, and in some cases - 24-hour pH-metry and impedancemetry. In the case of an established diagnosis of LPR, it is recommended to use a standard dosage of PPI twice a day for 3–6 months.

Efficacy of acid suppression therapy in gastroesophageal reflux disease-related chronic laryngitis

BACKGROUND

This research aims to assess the response to acid suppression therapy in gastroesophageal reflux disease (GERD)-related chronic laryngitis (CL).

METHODS

Data were extracted from Web of Knowledge, Embase, and PubMed for English language article published up to March 2016. Pooled overall response rate (ORR) rates were evaluated to determine acid suppression treatment efficacy. Random effects model was used with standard approaches to sensitivity analysis, quality assessment, heterogeneity, and exploration of publication bias.

RESULTS

Pooled data from 21 reports (N = 2864, antireflux medicine: 2741; antireflux surgery: 123, study duration 4-108 week) were analyzed. With the random-effect model, the ORR was 66% (95% confidence interval [CI] 54%-78%). The ORRs were 80% for antireflux surgery (95% CI 67%-93%, 3 studies, 123 patients), whereas 64% for antireflux medicine (95% CI 50%-77%, 18 studies, 2741 patients), and the ORR was 70% (95% CI 55%-85%, 15 reports, 2731 patients) for >8 weeks' therapy duration, whereas 57% (95% CI 48%-65%, 6 reports, 133 patients) for ≤8 weeks' duration of therapy.

CONCLUSIONS

Acid suppression seems to be an effective therapy for GERD-related CL. There was an increase in effect among patients with surgery therapeutic method and longer therapy duration.

Evaluation and management of patients with symptoms after anti-reflux surgery

Over the past two decades, there has been an increase in the number of anti-reflux operations being performed. This is mostly due to the use of laparoscopic techniques, the increasing prevalence of gastroesophageal reflux disease (GERD) in the population, and the increasing unwillingness of patients to take acid suppressive medications for life. Laparoscopic fundoplication is now widely available in both academic and community hospitals, has a limited length of stay and postoperative recovery time, and is associated with excellent outcomes in carefully selected patients. Although the operation has low mortality and postoperative morbidity, it is associated with late postoperative complications, such as gas bloat syndrome, dysphagia, diarrhea, and recurrent GERD symptoms. This review summarizes the diagnostic evaluation and appropriate management of such postoperative complications. If a reoperation is needed, it should be performed by experienced foregut surgeons.

Laryngopharyngeal reflux: diagnosis, treatment, and latest research

Introduction Laryngopharyngeal reflux (LPR) is a highly prevalent disease and commonly encountered in the otolaryngologist's office.

Objective To review the literature on the diagnosis and treatment of LPR.

Data Synthesis LPR is associated with symptoms of laryngeal irritation such as throat clearing, coughing, and hoarseness. The main diagnostic methods currently used are laryngoscopy and pH monitoring. The most common laryngoscopic signs are redness and swelling of the throat. However, these findings are not specific of LPR and may be related to other causes or can even be found in healthy individuals. Furthermore, the role of pH monitoring in the diagnosis of LPR is controversial. A therapeutic trial with proton pump inhibitors (PPIs) has been suggested to be cost-effective and useful for the diagnosis of LPR. However, the recommendations of PPI therapy for patients with a suspicion of LPR are based on the results of uncontrolled studies, and high placebo response rates suggest a much more complex and multifactorial pathophysiology of LPR than simple acid reflux. Molecular studies have tried to identify biomarkers of reflux such as interleukins, carbonic anhydrase, E-cadherin, and mucin.

Conclusion Laryngoscopy and pH monitoring have failed as reliable tests for the diagnosis of LPR. Empirical therapy with PPIs is widely accepted as a diagnostic test and for the treatment of LPR. However, further research is needed to develop a definitive diagnostic test for LPR.

Gastroesophageal reflux disease treatment: side effects and complications of fundoplication

Even skilled surgeons will have complications after antireflux surgery. Fortunately, the mortality is low (<1%) with laparoscopic surgery, immediate postoperative morbidity is uncommon (5%-20%), and conversion to an open operation is <2.5%. Common late postoperative complications include gas-bloat syndrome (up to 85%), dysphagia (10%-50%), diarrhea (18%-33%), and recurrent heartburn (10%-62%). Most of these complications improve during the 3-6 months after surgery. Dietary modifications, pharmacologic therapies, and esophageal dilation may be helpful. Failures after antireflux surgery usually occur within the first 2 years after the initial operation. They fall into 5 patterns: herniation of the fundoplication into the chest, slipped fundoplication, tight fundoplication, paraesophageal hernia, and malposition of the fundoplication. Reoperation rates range from 0%-15% and should be performed by experienced foregut surgeons.

Causes of dissatisfaction after laparoscopic fundoplication: the impact of new symptoms, recurrent symptoms, and the patient experience

BACKGROUND

Although laparoscopic fundoplication effectively alleviates gastroesophageal reflux disease (GERD) in the great majority of patients, some patients remain dissatisfied after the operation. This study was undertaken to report the outcomes of these patients and to determine the causes of dissatisfaction after laparoscopic fundoplication.

METHODS

All patients undergoing laparoscopic fundoplication in the authors' series from 1992 to 2010 were evaluated for frequency and severity of symptoms before and after laparoscopic fundoplication, and their experiences were graded from "very satisfying" to "very unsatisfying." Objective outcomes were determined by endoscopy, barium swallow, and pH monitoring. Primary complaints were derived from postoperative surveys. Median data are reported.

RESULTS

Of the 1,063 patients undergoing laparoscopic fundoplication, 101 patients reported dissatisfaction after the procedure. The follow-up period was 33 months. The dissatisfied patients (n = 101) were more likely than the satisfied patients to have postoperative complications (9 vs 4 %; p < 0.05) and to have undergone a prior fundoplication (22 vs 11 %; p < 0.05). For the dissatisfied patients, heartburn decreased in frequency and severity after fundoplication (p < 0.05) but remained notable. Also for the dissatisfied patients, new symptoms (gas bloat/dysphagia) were the most prominent postoperative complaint (59 %), followed by symptom recurrence (23 %), symptom persistence (4 %), and the overall experience (14 %). Primary complaints of new symptoms were most common within the first year of follow-up assessment and less frequent thereafter. Primary complaints of recurrent symptoms generally occurred more than 1 year after fundoplication.

CONCLUSIONS

Dissatisfaction is uncommon after laparoscopic fundoplication. New symptoms, such as dysphagia and gas/bloating, are primary causes of dissatisfaction despite general reflux alleviation among these patients. New symptoms occur sooner after fundoplication than recurrent symptoms and may become less common with time.

Biomarkers and laryngopharyngeal reflux

Laryngopharyngeal reflux is a controversial but increasingly made diagnosis used in patients with a collection of often non-specific laryngeal symptoms. It is a clinical diagnosis, and its pathophysiology is currently poorly understood. Previous reflux research has focused on injurious agents, acid, pepsin and biomarker expression. Failure of intrinsic defences in the larynx may cause changes in laryngeal epithelia, particularly alterations in carbonic anhydrases and E-cadherin. Carbonic anhydrase III levels vary in the larynx in response to laryngopharyngeal reflux, depending on location. Expression of E-cadherin, a known tumour suppressor, is reduced in the presence of reflux. Mucin expression also varies according to the severity of reflux. Further research is required to define the clinical entity of laryngopharyngeal reflux, and to identify a definitive mechanism for mucosal injury. Understanding this mechanism should allow the development of a comprehensive model, which would enable future diagnostic and therapeutic interventions to be developed.

Traditional reflux parameters and not impedance monitoring predict outcome after fundoplication in extraesophageal reflux

OBJECTIVES/HYPOTHESIS

Fundoplication is considered in patients with refractory extraesophageal reflux symptoms. However, postoperative symptom resolution is inconsistent. This analysis investigates which presenting symptoms and preoperative objective parameters predict postoperative symptom improvement.

STUDY DESIGN

Retrospective cohort study.

METHODS

A total of 237 patients referred for extraesophageal reflux symptoms refractory to medical therapy underwent esophageal function testing. Fundoplication was performed in 27 patients with objective evidence of gastroesophageal reflux disease. Symptomatic improvement was assessed at postoperative intervals. Logistic regression determined which symptoms and objective parameters predicted improvement of the presenting extraesophageal reflux symptom.

RESULTS

Overall, 59% of patients reported at least partial improvement of their presenting extraesophageal symptom after fundoplication. Predictors of symptomatic improvement were the presence of heartburn with or without regurgitation concomitant to their primary presenting symptom (odds ratio [OR], 6.6; 95% confidence interval [CI], 0.97-44.9; P = .05) and pH < 4 more than 12% of a 24-hour period (OR, 10.5; 95% CI, 1.36-81.1; P = .02). Probability of postoperative extraesophageal reflux symptom improvement was 90% if both conditions were present.

CONCLUSIONS

Both heartburn with or without regurgitation and esophageal pH < 4 more than 12% of a 24-hour period predicted postfundoplication resolution of the presenting extraesophageal reflux symptom.