Prevalence of pH-documented laryngopharyngeal reflux in Chinese patients with clinically suspected reflux laryngitis

American Journal of Otolaryngology
Paul K Y LamWai-kuen Ho

Abstract

Laryngopharyngeal reflux (LPR) is one of the main factors behind different laryngeal pathology according to the Western literature. Literature reported that the prevalence of gastroesophageal reflux disease (GERD) in Chinese population was considerably lower than that in Western countries. To date, however, there is no study to evaluate the prevalence of pH-documented LPR in the Chinese ethnicity. We thus recruited 28 consecutive Chinese patients with reflux symptoms including globus, throat discomfort, throat clearing, chronic cough, or burping lasting more than 1 month in the preceding 1 year, together with stroboscopic evidence suggestive of reflux laryngitis according to the reflux finding score in our study. All patients underwent thorough head and neck examination and transnasal endoscopic assessment. The prevalence of pH-documented LPR and GERD was then documented using ambulatory 24-hour pH biprobe study. Six (21%) of the 28 patients had pH-documented LPR. Four (14%) of the 28 patients had GERD with 3 of them having concomitant LPR. Only burping was associated with pH-documented LPR (P < .05). No relationship was observed between pH-documented LPR and other factors, including age, sex, other reflux symptoms except burpi...Continue Reading

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Dec 4, 2013·Nature Reviews. Gastroenterology & Hepatology·Margot SelleslaghNathalie Rommel
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