What is the efficacy of fundoplication in controlling signs and symptoms associated with laryngopharyngeal reflux?
This systematic review of 34 studies comprising 2190 patients with laryngopharyngeal reflux found that 83.0% of patients have shown partial relief of symptoms and 67.0% of patients have shown complete relief of symptoms, but these rates vary significantly between studies because of a high level of methodological heterogeneity according to method of diagnosis, exclusion criteria, and outcomes used to assess the efficacy of fundoplication. Many usual signs and symptoms associated with laryngopharyngeal reflux were not taken into consideration in the clinical outcomes.
The heterogeneity among studies makes it impossible to establish clear consensus about the definition of laryngopharyngeal reflux or reliable conclusions about the effectiveness of fundoplication in controlling symptoms and signs associated with laryngopharyngeal reflux disease.
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.
To determine whether fundoplication is associated with control of signs and symptoms in patients with LPR.
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.
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.
Lechien JR, Dapri G, Dequanter D, et al. Surgical Treatment for Laryngopharyngeal Reflux Disease: A Systematic Review. JAMA Otolaryngol Head Neck Surg. Published online May 02, 2019145(7):655–666. doi:10.1001/jamaoto.2019.0315
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