H F Mahieu1. 1. Department of Otorhinolaryngology, Meander Medical Centre, Amersfoort, The Netherlands. hf.mahieu@meandermc.nl
Abstract
BACKGROUND: Despite increasing clinical and experimental evidence of its existence, otolaryngological manifestations of reflux disease remain controversial, concerning diagnosis as well as treatment. AIM: Proper understanding of laryngopharyngeal reflux disease (LPRD). METHOD: Review of literature. RESULTS: Scepticism concerning LPRD is based upon differences between gastro-oesophageal reflux disease and LPRD; lack of specificity and sensitivity of diagnostic tests to confirm LPRD; non-specificity of laryngological symptoms, which are difficult to distinguish from other causes of upper respiratory tract inflammation; non-specificity of laryngological signs in laryngoscopy, with high intra- and inter-observer variability in evaluation; diagnosis of LPRD is essentially only based on a combination of diagnostic signs and symptoms, which cannot be attributed to other pathology; slow, or sometimes lack of, response of LPRD symptoms to proton pump inhibitor (PPI) medication and lack of evidence concerning efficacy of PPIs in placebo-controlled trials. CONCLUSIONS: LPRD remains a diagnosis by exclusion and resolution of symptoms following 4-month trial of 40 mg PPI twice daily is, for all practical purposes, considered proof of the initial diagnosis. However, non-response does not exclude LPRD as PPIs have no influence on noxious non-acid components of the refluxate.
BACKGROUND: Despite increasing clinical and experimental evidence of its existence, otolaryngological manifestations of reflux disease remain controversial, concerning diagnosis as well as treatment. AIM: Proper understanding of laryngopharyngeal reflux disease (LPRD). METHOD: Review of literature. RESULTS: Scepticism concerning LPRD is based upon differences between gastro-oesophageal reflux disease and LPRD; lack of specificity and sensitivity of diagnostic tests to confirm LPRD; non-specificity of laryngological symptoms, which are difficult to distinguish from other causes of upper respiratory tract inflammation; non-specificity of laryngological signs in laryngoscopy, with high intra- and inter-observer variability in evaluation; diagnosis of LPRD is essentially only based on a combination of diagnostic signs and symptoms, which cannot be attributed to other pathology; slow, or sometimes lack of, response of LPRD symptoms to proton pump inhibitor (PPI) medication and lack of evidence concerning efficacy of PPIs in placebo-controlled trials. CONCLUSIONS: LPRD remains a diagnosis by exclusion and resolution of symptoms following 4-month trial of 40 mg PPI twice daily is, for all practical purposes, considered proof of the initial diagnosis. However, non-response does not exclude LPRD as PPIs have no influence on noxious non-acid components of the refluxate.
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