Pharyngolaryngeal reflux: A literature review

Abstract

Pharyngolaryngeal reflux (RFL) is a syndrome associated to a variety of symptoms. Among them, the most frequently described are dysphonia, vocal fatigue, pharyngeal globus, chronic coughing and throat clearing. An exhaustive search of international and national databases was performed. Globus, throat clearing, laryngitis and gastroesophageal reflux were used as keywords. Some 35 search-related references were retrieved, of which most were published from 2000 to date. Respect to the etiology of pharyngolaryngeal reflux, the current view is that gastric content reflux to the pharynx is the most important factor, but recently it has been demonstrated that, although this pathological trait is pivotal for symptoms appearance, there are additional factors that could perpetuate the symptoms in time, which contribute to consider RFL as a different entity from gastroesophageal reflux (RGE).