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  • Title: Current bacteriological profile of tonsillar surface versus core tissue in patients undergoing tonsillectomy.
    Author: Sharma J, Dass A, Gupta N, Chander J, Singhal SK.
    Journal: Indian J Med Microbiol; 2023; 42():77-81. PubMed ID: 36464533.
    Abstract:
    PURPOSE: The current study explored the bacteriological profile in the tonsillar core in patients undergoing tonsillectomy and compared it with tonsillar surface organisms. The antibiotic sensitivity and resistance patterns were also studied. MATERIALS AND METHODS: This prospective and observational study was conducted in the Department of Otorhinolaryngology, Head and Neck surgery in a tertiary care institute, on a total of sixty-one patients clinically diagnosed as chronic tonsillitis and undergoing tonsillectomy. Tonsillar surface culture swabs and core tissue specimen were sent in separate vials. The culture isolates and their antibiotic sensitivity were analysed and compared. RESULTS: Bacterial growth was detected in 61% of the cases, in cultures from the surface or the core tissue or both. 50.8% specimens of core tissue versus 31.1% of tonsillar surface samples revealed bacterial growth. Of the 13 cases in which surface and core both had bacterial culture growth, the same pathogens were identified in 8 cases. Pseudomonas aeruginosa was the most commonly reported organism in both tonsillar core as well as surface swab cultures. CONCLUSION: Our study shows that surface swab culture is not always a reliable indicator of organisms present in core of tonsils in cases of chronic infection. The surface swabs did not always match the pathogens in the core. The higher prevalence and the variability of pathogenic organisms in the core tissue as compared to the surface suggests that a targeted antibiotic treatment based on surface culture swabs is unlikely to eradicate them.
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