Peritonsillar infections: local experience

Area of Science:

• Otolaryngology
• Infectious Diseases

Background:

• Peritonsillar infections are a frequent reason for admission to the Otolaryngology department.
• This study investigates disease patterns and management at Singapore General Hospital.

Purpose of the Study:

• To analyze the epidemiology and clinical outcomes of peritonsillar infections.
• To assess seasonal variations in infection occurrence.
• To evaluate the necessity of routine bacterial cultures and interval tonsillectomy.

Main Methods:

• Retrospective review of patients with peritonsillar infections admitted over three years.
• Data collection on patient demographics, clinical presentation, management, and outcomes.

Main Results:

• 185 patients studied: 151 (81.6%) peritonsillar abscess, 34 (18.4%) cellulitis.
• Racial predisposition observed among Malays (p<0.0005).
• Possible seasonal variation noted, but no link to upper respiratory tract infections.
• Incision and drainage (66%) and needle aspiration (34%) were primary treatments.
• No significant difference in hospital stay with various antibiotic regimens (p=0.062).
• Low recurrence rate (7.6%), all occurring after one month.
• Two cases (1%) of bilateral quinsy.

Conclusions:

• Peritonsillar infections are common in Otolaryngology admissions.
• Routine bacterial cultures and interval tonsillectomy are not indicated after a single infection episode.
• Management strategies focus on drainage and appropriate antibiotics, with low recurrence rates supporting conservative approaches.