Gastrooesophageal acid reflux has been implicated in the pathogenesis of several extraesophageal disorders, including laryngitis.
Gastrointestinal reflux (GERD)–associated and laryngopharyngeal reflux (LPR)–associated processes include: Chronic laryngitis, chronic cough, dysphagia, globus sensation, hallitosis, hoarseness, chronic sinusitis, laryngeal stenosis and malacia,
LPR represents a supraesophageal complication due to reflux of gastric acid content through the esophageal/pharyngeal/laryngeal/pulmonary axis.
It is a distinct entity from GERD.
Typical symptoms are nonspecific and can occur in processes such as allergy, infection, vocal abuse, smoking, inhaled irritants, and alcohol abuse.