Acute Bacterial Sinusitis Diagnosis

Clinical Presentation

The American Academy of Pediatrics recommends that a presentation of concurrent high fever and purulent nasal discharge from the onset defines the severe presentation of acute bacterial sinusitis, characterized by symptoms such as congestion, headache, and fever in adults 3
The combination of persistent purulent rhinorrhea and facial pain are key symptoms that correlate with bacterial disease, according to the American Academy of Allergy, Asthma, and Immunology 1, 2
Otalgia can be a symptom of acute bacterial sinusitis due to the continuity of the mucosa of the upper respiratory tract, where sinus inflammation can affect the middle ear 3

The American Academy of Pediatrics recommends against obtaining radiographs or computed tomography scans to distinguish bacterial sinusitis from viral infection in typical clinical presentations 3
The diagnosis of acute bacterial sinusitis is based on a combination of clinical history and physical examination, as recommended by the American Academy of Allergy, Asthma, and Immunology 1, 2
Allergic rhinitis typically presents with clear nasal discharge, nasal/ocular pruritus, sneezing, and a seasonal pattern, whereas migraine can be differentiated by the presence of purulent nasal discharge and fever 4

The American Academy of Pediatrics recommends amoxicillin as the first-line antibiotic treatment for acute bacterial sinusitis (500mg three times a day for 7-10 days) 5
Symptomatic adjuvant therapy, including analgesics, intranasal corticosteroids, nasal irrigation with saline solution, and decongestants, can be used to alleviate symptoms 5
Follow-up is recommended to monitor improvement in 3-5 days, and to consider changing to amoxicillin-clavulanate if there is no improvement 5