ROLE OF BACTERIAL BIOFILM IN RESISTANT CASES OF CHRONIC RHINOSINUSITIS AND OTITIS EXTERNA

Prof. Dr. Mostafa Mohamed El Sayed, Prof. Dr. Abeer Abd El Rahim Ghazal, Prof. Dr. Ibrahim Ibrahim Eldesouky, Dr. Yehya Mohamed Dawoud, Dr. Amr Mahmoud Abdel Mageed Abdelaty*

ABSTRACT

Bacterial biofilms consist of a complex, organized community of bacteria that anchor to both biotic and abiotic surfaces. They are composed of layers of embedded, live bacteria within extruded ex-polymeric matrix. This configuration allows for evasion of host defenses and decreased susceptibility to antibiotic therapy while maintaining the ability to deliberately release planktonic bacteria, resulting in recurrent acute infections. Thus, bacterial biofilms were hypothesized to contribute to the progression and persistence of chronic rhinosinusitis and otitis externa.

Keywords: Biofilm, Chronic Rhinosinusitis, Otitis Externa.