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Pepsin and Weakly Acidic Esophageal Reflux


Authors: Karol Zeleník;  P. Schwarz;  M. Lázničková;  Pavel Komínek
Authors‘ workplace: Klinika ORL FN Ostrava přednosta doc. MUDr. P. Komínek, Ph. D., MBA
Published in: Otorinolaryngol Foniatr, 59, 2010, No. 3, pp. 124-128.
Category: Original Article

Overview

Pepsin in weakly acid and slightly alkaline refluxes is considered to be main factor responsible for damage of hypopharyngeal and laryngeal epithelial cells. Its ability to stay stable and active also in weakly acid and slightly alkaline pH and its negative impact on epithelial cells are reasons, why some patients do not response even for aggressive antireflux therapy. Proper diagnosis of weakly acid and slightly alkaline refluxes is possible only with combination of pH-metry and multi-channel intraluminal impedance. Nowadays, pepsin inhibitors and pepsin receptor antagonists are developed to decrease negative impact of pepsin on laryngeal and hypopharyngeal epithelial cells in future.

Key words:
extraesophageal reflux, weakly acid reflux, pepsin, esophageal impedance.


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