Treatment

1. Immediate assessment and resuscitation
   • Admit to a high-acuity area, usually ICU.
   • Call ENT/maxillofacial surgery and anesthesiology early.
   • Give supplemental oxygen, keep the patient sitting upright, continuous monitoring, IV access, fluids if septic.
   • Do not send an unstable patient for CT or lay them flat before the airway is secured.
2. Secure the airway early
   • Warning signs: stridor, dyspnea, inability to handle secretions, drooling, cyanosis, altered voice, marked tongue elevation, rapidly increasing swelling.
   • Preferred approach when feasible: awake flexible fiberoptic nasal intubation, performed by an experienced airway team with surgical backup.
   • Avoid blind nasal intubation because it can cause bleeding, rupture an abscess, and precipitate complete obstruction.
   • If intubation is unsafe, unsuccessful, or there is severe obstruction, perform an emergency surgical airway such as cricothyrotomy or tracheostomy.
   • Standard oral laryngoscopy may be difficult because the tongue cannot be displaced adequately. ROSEN's Emergency Medicine, p. 864.
3. Start empiric intravenous antibiotics Coverage should include oral streptococci, anaerobes, and mixed oral flora.
   • Ampicillin-sulbactam IV is a common first-line choice.
   • Clindamycin IV is an alternative in serious beta-lactam allergy.
   • For immunocompromised patients or severe infection, broaden for gram-negative organisms, such as piperacillin-tazobactam or a carbapenem, according to local guidance.
   • Add MRSA coverage such as vancomycin if risk factors exist: known colonization/infection, recent hospitalization, injection-drug use, or severe purulent infection.
   • Obtain blood cultures, and culture operative drainage where possible, but do not delay treatment.
4. Surgical drainage and source control
   • Urgent incision and drainage is indicated if imaging or examination shows an abscess, gas formation, necrosis, clinical deterioration, or no response to antibiotics.
   • Even when it is predominantly cellulitis without clear fluctuance, decompression and drainage may be required in severe cases to relieve pressure.
   • Remove or treat the dental source, usually by extraction or endodontic management, once the airway is safe and the patient is stabilized. MSD Manual treatment summary
5. Imaging
   • Once the airway is secure and the patient can tolerate it, obtain contrast-enhanced CT of the neck to define involved spaces, abscess, gas, and spread to the mediastinum.
   • Diagnosis is often clinical, so imaging should never postpone airway management. ROSEN's Emergency Medicine, p. 864.
6. Adjuncts and monitoring
   • Dexamethasone may be considered to reduce edema, but it is an adjunct only and must not delay definitive airway control, antibiotics, or drainage.
   • Monitor for sepsis, descending mediastinitis, aspiration, jugular thrombophlebitis, and need for repeat drainage.

Latest guidance found for deep neck space infections

1. Latest formal society recommendation: imaging

• Use contrast-enhanced CT as the main emergency imaging modality for suspected complicated deep neck infection, because it defines the involved spaces, identifies a drainable abscess, and detects bone involvement.
• Use contrast-enhanced MRI when additional soft-tissue detail is needed or there is suspected orbital, skull-base, intracranial, or complex neck involvement.
• Imaging reports should specifically assess for mediastinal spread and vascular thrombosis.
• Do not delay airway management for imaging in a patient with impending obstruction.

2. Best recent adult evidence synthesis

3. Current management consensus

4. Practical pediatric clinical pathways

• The Vanderbilt pediatric deep neck infection pathway separates lateral, peritonsillar, and para/retropharyngeal infection and emphasizes antimicrobial stewardship.
• The Akron Children’s pathway recommends CT with IV contrast when worsening, failing antibiotics, or likely needing drainage; it uses a 24-48 hour reassessment and suggests ENT drainage for abscesses over 2.5 cm or failure of IV treatment.

Bottom line