Abstract
Obstructive Sleep Apnea Syndrome (OSAS) has been correlated to gastroesophageal reflux disease (GERD) and its atypical forms (Laryngopharyngeal reflux LPR). It is, however, unclear if the apneic episodes are a cause or consequence of reflux, or even if there is a temporal connection between both pathologies. Esophageal pH-impedanciometry is currently considered the most sensitive and spec…