Short-course therapy for acute sinusitis: how long is enough?

Area of Science:

• Infectious Diseases
• Pharmacology
• Otolaryngology

Background:

• Acute bacterial sinusitis is a common infection, often a complication of colds, with typical pathogens including Streptococcus pneumoniae and Haemophilus influenzae.
• Traditional antibiotic treatment courses for acute sinusitis range from 10 to 14 days, but the scientific rationale for this duration is not robust.
• Untreated sinusitis can lead to severe complications such as brain abscess or cavernous sinus thrombosis.

Purpose of the Study:

• To review the evidence supporting short-course antibiotic therapy for acute sinusitis.
• To evaluate the efficacy and advantages of reducing antibiotic treatment duration for acute sinusitis.

Main Methods:

• Systematic review of clinical trials comparing short-course (≤5 days) antibiotic therapy with traditional longer (10–14 days) regimens for acute sinusitis.
• Analysis of studies investigating oral cephalosporins, new quinolones, and ketolides.

Main Results:

• Clinical trials demonstrate that 5-day antibiotic regimens have equivalent efficacy to 10-day regimens for acute bacterial sinusitis.
• Short-course antibiotic therapy may offer additional advantages over traditional longer durations.
• Evidence strongly supports reducing the treatment course to 5 days for uncomplicated acute maxillary sinusitis in adults.

Conclusions:

• A 5-day antibiotic course is recommended for uncomplicated acute maxillary sinusitis in adults, challenging the traditional 10- to 14-day standard.
• Further research is needed to establish optimal short-course antibiotic durations for pediatric sinusitis and other forms of adult sinusitis (frontal, ethmoidal, sphenoidal).