Laryngeal or Pharyngeal Diphtheria with Symptom Duration Under 48 Hours
This protocol covers the management of localised laryngeal or pharyngeal diphtheria presenting within the first 48 hours of symptom onset — a critical early window where timely treatment initiation matters.
Clinical Scenario
The patient has localised laryngeal or pharyngeal disease (mild early diphtheria) with a symptom duration of less than 48 hours. Identifying this early timeframe is central to selecting and urgently initiating the appropriate regimen.
Treatment Approach (Partial Overview)
A macrolide antibiotic, given alongside diphtheria antitoxin (DAT), is the cornerstone of management and must not be delayed. The complete regimen — antibiotic options, dosing, and DAT administration — is available in the structured protocol below.
Full evidence-based regimen accessible via the link below.
References
- Laryngitis or pharyngitis
- Duration < 48 hours
- Mild disease: localized laryngeal or pharyngeal disease of 2 days duration
- In patients with suspected or confirmed diphtheria, WHO recommends using macrolide antibiotics (azithromycin, erythromycin) in preference to penicillin antibiotics [Strong recommendation, low certainty evidence].
- Antibiotics should be administered alongside DAT and should not be delayed.
- In patients with suspected or confirmed symptomatic diphtheria, WHO suggests administration of a single dose of diphtheria antitoxin with choice of dose based on disease severity and time since symptom onset, in comparison with a fixed dose for all patients [Conditional recommendation, very low certainty evidence].
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