II. Epidemiology
- Oropharyngeal injury accounts for 1% Pediatric Trauma
- Most commonly occurs in preschool children
III. Mechanism
- Fall on object with open mouth
IV. Causes
- Pen
- ToothBrush
- Popsicle stick
- Straw
V. History
- Retropharyngeal infection or abscess
- Fever
- Unable to swallow secretions or Drooling
- Trismus
- Neck Pain or Torticollis
- Chest Pain (mediastinitis)
-
Internal Carotid Artery injury
- Focal neurologic symptoms
VI. Exam
- See Trauma Evaluation
- Mouth
- Careful exam is critical
- Have suction available
- Use Tongue blade (consider with bite block)
- Avoid probing the wound site (significant re-bleeding may occur)
- Wound site
- Wound length, depth and location
- Retained Foreign Body
- Careful exam is critical
-
Internal Carotid Artery related exam
- Complete Neurologic Examination
- Auscultate for Carotid Artery bruit
VII. Evaluation: Red Flags
- Deep (or potentially deep) throat wounds (esp. from sharp objects)
- Long Lacerations (>2 cm) or hanging flap (requires repair)
- Soft Palate injuries (higher risk for deep space injury)
- Lateral throat wounds (at Tonsillar Pillar region)
- Neurologic findings (new or fluctuating)
- Retained penetrating foreign body (do not remove, requires surgical management)
- Nonaccidental Trauma findings (follow local protocols)
VIII. Labs: Indicated for signs infection
IX. Imaging: Possible deep space injury or infection
- First-Line
- Chest XRay
- Lateral Neck XRay
- Soft tissue space normally <7 mm anterior to C2
- Soft tissue space normally <5 mm anterior to C3-4
- Second-Line
- CT Angiography Neck
X. Imaging: Suspected Internal Carotid Artery injury
- Precautions
- Acute neurologic findings should prompt emergent vascular Consultation and second-line tests
- First-line
- Carotid Ultrasound
- Second-line
- CT Angiography Neck
- MR Angiography Neck
- Third-line
- Carotid Artery Angiography
XI. Management: Triage
- Evaluate and manage airway and associated serious injuries first
- See Trauma Evaluation
- See ABC Management
- Control oropharyngeal bleeding (may require Advanced Airway)
- Cervical Spine Immobilization if indicated
- High Risk Penetrating Injury
- Indications
- Gun shot wound
- Stab Wound
- High velocity MVA
- Neurologic deficit or Carotid Bruit
- Uncontrolled, rapid Oral Bleeding
- Emergent stabilization (see above) and transfer to Level 1 Trauma Center
- Emergent Consultation with otolaryngology and vascular surgery or neurosurgery
- Manage as Zone 3 Penetrating Neck Trauma or Neck Vascular Injury in Blunt Force Trauma
- Indications
- Moderate Risk Injury
- Indications
- Retained Foreign Body
- Deep wound (or unclear depth) with significant mechanism of injury (esp. posterolateral pharynx)
- Emergent CT Angiography Neck
- Consult Otolaryngology (and vascular surgery as indicated)
- Indications
- Low Risk Injury
- Indications
- Superficial injuries (shallow depth, length <2 cm) and low risk mechanism
- No initial imaging needed unless red flag findings (see above)
- May discharge home with precautions to return for signs infection or neurologic changes
- Fever, Drooling, Trismus, Torticollis, Chest Pain
- Slurred speech or weakness
- Indications
XII. Management: Pharyngeal Wound Related Management
- Tetanus Prophylaxis
-
Laceration Repair (typically by otolaryngology in OR) Indications
- Protruding or Retained Foreign Body
- Laceration >2 cm
- Hanging flap (e.g. Palate)
- Tonsil avulsion
- Contaminated wound
-
Antibiotic prophylaxis
- Indicated for oropharyngeal Lacerations that breach the mucosa
- Oral Antibiotics
- Clindamycin 10 mg/kg (up to 600 mg) orally three times daily for 5-7 days OR
- Augmentin 25 mg/kg (up to 875 mg) orally twice daily for 5-7 days
- Intravenous Antibiotics (hospitalized patients)
- Clindamycin 10 mg/kg (up to 900 mg) IV every 8 hours OR
- Unasyn 100 mg/kg/day IV divided every 6 hours (use adult dose >40 kg)
XIII. Complications
- Deep space oropharyngeal or deep space neck infection (<5% of cases)
- Retropharyngeal Abscess
- Mediastinitis
- Suppurative jugular venous thrombosis
-
Internal Carotid Artery injury (<1% of cases)
- Carotid Artery Dissection
- Carotid Artery thrombosis
- Patients are typically lucid without deficit for first 3-60 hours after injury
XIV. References
- Claudius, Behar and Stoner in Herbert (2015) EM:Rap 15(11): 2-3
- Roberson in Bachur (2015) UpToDate, Accessed 11/2/2015