Villanueva-Ramos NB, De la Mora-Fernández AR, Ríos-Burgueño ER, Peraza-Garay FJ

Language: Spanish
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ABSTRACT

Background: One of the most frequent otorhinolaryngological conditions is related to tonsils and adenoids. The resistance to antibiotics and chronicity that this disease presents may be due to the presence of structured communities of bacteria adhered to the epithelial surface, known as biofilms.
Objective: To analyze the presence of biofilms in adenotonsillar tissue of patients with infectious diseases or with obstructive symptoms.
Material and Method: A descriptive, observational, cross-sectional and prospective study was done in which tissue obtained postoperatively in patients with adenotonsillar hypertrophy and/or chronic tonsillitis was included within the period from August 2014 to November 2016; the presence of biofilms was determined by histopathology; demographic variables were also reported.
Results: 138 samples were included, 73 patients (52.9%) were men and 65 women (47.1%) with an average age of 13.8 years (range: 2-62 years). The biofilms were found in 69.6% of the patients, of these, 65 (72.2%) were of infectious pathology and 31 (64.6%) of obstructive disease (p = 0.438). Relating the detection of biofilms in each pathological process, no statistically significant difference was found. The presence of biofilms was demonstrated in 96 (69.6%) using light microscopy. There was no significant difference between the presence of biofilms associated with adenoamigdaline infection or obstructive process.
Conclusions: The presence of biofilms was demonstrated in 69.6% using light microscopy and three stains.