Nasal Septal Hematoma

Article Author:
Gunjan Gupta
Article Editor:
Kunal Mahajan
Updated:
5/5/2019 11:28:20 PM
PubMed Link:
Nasal Septal Hematoma

Introduction

Nose is the most commonly injured facial structure. Most nasal injuries do not require immediate intervention, but trauma is resulting in septal hematoma is an exception. A nasal septal hematoma is a rare but serious complication of nasal or facial trauma. It refers to the collection of blood under the mucoperichondrium or mucoperiosteum of nasal septal cartilage or bone. It may be unilateral or bilateral, with latter being more frequent in the setting of severe trauma.[1][2][3][4]

Etiology

A septal hematoma usually occurs secondary to nasal trauma. The latter can be in the form of sports injuries, road-side accidents, falls, assault or occupational injuries. Even a minor injury can lead to nasal septal hematoma, especially in children. In-fact a nasal septal hematoma without injury should raise the suspicion of child abuse, especially in infants and toddlers. Iatrogenic septal hematoma may arise as a complication of nasal surgeries like septal correction, endoscopic sinus surgery or turbinate surgery. Atraumatic septal hematoma is rarely seen in patients with bleeding diathesis or as an adverse effect of antiplatelet/anticoagulant drugs.[5][6][7]

Epidemiology

A septal hematoma is a rare entity and can occur in any age group. The exact incidence of septal hematoma remains unknown. However, it has been reported to occur in 0.8% to 1.6% of patients with nasal injury attending ear, nose, and throat clinic. Unfortunately, a large number of cases often remain undiagnosed, especially in children, until complications occur.

Pathophysiology

The exact mechanism underlying the formation of nasal septal hematoma remains controversial.  Septal cartilage is an avascular structure, 2 mm to 4 mm thick, which receives its nutrients supply from the overlying perichondrium. Physicians hypothesize that trauma results in sharp buckling forces that pull the closely adherent mucoperichondrium from the underlying cartilage. This causes the rupture of submucosal vessels which ultimately causes collection of blood between the cartilage and the perichondrium. Hematoma thus formed, results in pressure related ischaemic changes and the subsequent necrosis of the septal cartilage.

If the trauma is severe enough, the septal cartilage gets fractured, and blood sweeps to the opposite side resulting in a bilateral septal hematoma. This situation is more hazardous as it doubles the compromise on the nutrient supply of septal cartilage and hastens the process of cartilage necrosis.

Hematoma acts as an ideal medium for bacterial proliferation and colonization. If left untreated, it gets infected within 72 hours leading to the formation of a septal abscess.

History and Physical

A nasal hematoma usually presents within the first 24 to 72 hours after trauma. However delayed presentation has also been reported. The most common symptom is the nasal obstruction (95%) which can be either unilateral or bilateral depending on the type of hematoma. Other symptoms include pain (50%), rhinorrhea (25%), and fever (25%). In many cases, symptoms are non-specific. Therefore, a high index of suspicion should be kept especially if a patient presents with nasal deformity and/or nasal pain following trauma. Also if a post-traumatic nasal obstruction does not resolve with a local vasoconstrictive agent or blood clot removal, the possibility of nasal hematoma should be strongly considered.

Clinical examination is usually confirmatory. It can either be accomplished with nasal speculum or otoscope.  Blood clots, if any should be suctioned. Asymmetry of the septum with bluish or reddish mucosal swelling suggests a hematoma. A newly formed hematoma is not always ecchymotic and can only be picked up by palpation. Direct palpation is carried out by gently inserting the little finger into the patient's nose. A hematoma feels soft and fluctuant in contrast to deviated nasal septum which will be firm and concave on the opposite side. Another important feature of septal hematoma is the lack of reduction in size on the application of decongestant sprays like oxymetazoline 0.05%.

Evaluation

Usually clinical diagnosis. Rarely CT or MRI might be considered if the diagnosis is equivocal on physical exam.

Treatment / Management

A nasal septal hematoma should be drained urgently to avoid undue complications. The procedure is done under local anesthesia. However general anesthesia might be required in apprehensive adults and children.[8][9][10]

Following equipment/instruments should be available before draining a septal hematoma:

  1. Topical anesthesia
  2. Light source (head-lamp or otoscope)
  3. Nasal speculum
  4. Suction apparatus (Frazier suction tip)
  5. Gloves
  6. Needle, 18-20 gauge (Ga)
  7. Syringe, five mL
  8. Scalpel, No. 11 blade or 15 blade
  9. Commercially produced nasal tampon
  10. Gelfoam (absorbable gelatin)
  11. Surgicel (oxidized cellulose)
  12. Small Penrose drain

The patient should lie in the reclining position with the head end of the table slightly raised. Small hematomas can be aspirated with an 18-Ga to 20 -Ga needle. Larger hematomas are drained by incising the mucosa over the most fluctuant area. The incision is given in the anteroposterior direction parallel to the nasal floor. In case of bilateral hematoma, a staggered incision is made to avoid through and through the septal perforation. The clot is suctioned, and saline irrigation is carried out on an 18-Ga to 20-Ga catheter. A small piece of mucosa is excised from the incision edge for the better drainage and the prevention of premature closure. A small Penrose drain is placed into the opened hematoma cavity and secured with a suture. Nose is packed on both the sides to prevent re-accumulation of blood. Systemic antibiotics are prescribed to prevent serious, infective complications. Pack and drain are usually kept in situ for 2 to 3 days and is removed only when there is no further drainage for at least 24 hours. Patients should be kept on regular follow up to prevent the delayed complications.

Pearls and Other Issues

Complications are bound to occur in untreated or improperly treated hematomas. A septal abscess is the most common acute complication of septal hematoma. If left untreated, the infection can spread to the nearby anatomical structures like paranasal sinuses, orbit or intracranial structures, through the venous draining the mid-face. Avascular necrosis and secondary infection can lead to the collapse of septal cartilage causing various types of nasal deformities.  In children, destruction can cause an altered growth of mid-face and permanent facial deformity.[11][12]

Potential complications associated with untreated septal hematoma (according to site of occurrence):

A. Local

  • Septal abscess
  • Saddle nose
  • Deviated nasal septum
  • Nasal valve collapse
  • Sinusitis
  • Facial cellulitis
  • Nasal vestibulitis

B. Systemic

  • Sepsis 
  • Bacteremia

C. Orbital

  • Orbital cellulitis
  • Sub-periosteal abscess
  • Orbital abscess

D. Intracranial Complications

  • Cavernous sinus thrombosis
  • Epidural abscess
  • Meningitis

Enhancing Healthcare Team Outcomes

Nasal septal hematomas are not uncommon because of facial trauma. These injuries are best managed by a multidisciplinary team that includes a plastic surgeon, ENT surgeon. general surgeon, trauma surgeon emergency department physician and specialty nurses. Missed or delayed diagnosis can lead to both local and systemic complications which carry high morbidity. A nasal septal hematoma should be suspected with any type of facial injury and appropriate referral made to the ENT or plastic surgeon. With prompt drainage, the outcomes are good in most people.[11]


References

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