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Published on: September 27, 2018
The role of viruses in the pathogenesis of peritonsillar abscess
M Rusan1, T E Klug, J J Henriksen
1Department of Otorhinolaryngology, Aarhus University Hospital, Nørrebrogade 44, Aarhus, 8000, Denmark. rusanm@yahoo.com
Abstract:
Peritonsillar abscess (PTA) is the most frequent complication of acute tonsillitis and a prevalent cause for acute admission to otorhinolaryngology departments. Our aim was to examine the role of viruses in the pathogenesis of PTA, as this has not previously been considered. We examined both palatine tonsils from 25 patients undergoing acute tonsillectomy for PTA, using PCR-based assays for herpes simplex virus-1 and -2 (HSV-1 and -2), adenovirus, Epstein-Barr virus (EBV), influenza A and B, and respiratory syncytial virus (RSV) A and B. We similarly examined tonsils from 55 patients undergoing elective tonsillectomy due to chronic tonsillar conditions. These patients served as a control group, as they did not have a clinically apparent infection at the time of surgery. Only HSV-1 (5/80, 6.3%), adenovirus (11/80, 13.8%), and EBV (71/80, 88.8%) were detected in our study population. There was no statistically significant difference in the frequency of these viruses across different diagnostic groups. Quantification of EBV load demonstrated no differences between the PTA and the elective tonsillectomy group, nor between the abscessed and non-abscessed tonsil of PTA patients. In summary, our data do not support a significant role for the examined viruses in the pathogenesis of PTA.
Insights
This study investigated viruses in peritonsillar abscess (PTA) pathogenesis. Researchers found no significant viral role in PTA development, suggesting other factors are involved.
Area of Science:
- Otorhinolaryngology
- Virology
- Infectious Diseases
Background:
- Peritonsillar abscess (PTA) is a common complication of acute tonsillitis.
- The role of viruses in PTA pathogenesis remains largely unexplored.
Purpose of the Study:
- To investigate the potential role of common viruses in the development of peritonsillar abscess.
- To compare viral presence in tonsils of patients with PTA versus those with chronic tonsillar conditions.
Main Methods:
- Palatine tonsil samples were collected from 25 patients with PTA and 55 controls undergoing elective tonsillectomy.
- Polymerase chain reaction (PCR) assays were used to detect herpes simplex virus-1 and -2 (HSV-1, HSV-2), adenovirus, Epstein-Barr virus (EBV), influenza A and B, and respiratory syncytial virus (RSV) A and B.
Main Results:
- HSV-1, adenovirus, and EBV were detected in the study population.
- No statistically significant difference in the frequency of these viruses was observed between PTA patients and controls.
- EBV viral load did not differ between groups or between abscessed and non-abscessed tonsils in PTA patients.
Conclusions:
- The examined viruses (HSV-1, adenovirus, EBV) do not appear to play a significant role in the pathogenesis of peritonsillar abscess.
- Further research is needed to identify the causative factors in PTA development.
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