The study is a prospective randomized controlled trial conducted at two different centers at the Department of ORL - Head \& Neck Surgery, Odense University Hospital and the Department of Otorhinolaryngology, Head and Neck Surgery \& Audiology, Rigshospitalet. The research question is: In a group of patients referred to an otolaryngology department with objective findings of peritonsillar abscess, what are the effects of using intraoral ultrasound to diagnose and guide needle aspiration compared to the traditional landmark-based technique, when measured by the number of performed needle aspirations, procedure-related pain and days on sick leave? The secondary outcomes measured are * Number of hospitalization days * Number of Quincy tonsillectomies * Number of visits to an outpatient clinic * Patient-reported outcome (measured using an 11-point numeric rating scale)
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needle aspirations
Timeframe: From date of randomization until the date of full recovery from the treated peritonsilar infection, assessed up to 1 months.
proportion of succesfull needle aspirations
Timeframe: From date of randomization until the date of full recovery from the treated peritonsilar infection, assessed up to 1 months.
days on sick leave
Timeframe: From date of randomization until the date of full recovery from the treated peritonsilar infection, assessed up to 1 months.