Veterinary advice should be sought before applying any treatment or vaccine.

Equine Paranasal Sinusitis

Sinusitis, Equine Paranasal Sinus Disease

Equine paranasal sinusitis is an infection of the horse's perinasal sinus cavities. Horses have 7 bilaterally paired sinuses that all drain into the nasal cavity through an opening into the nasal passage.

Symptoms

Unilateral or bilateral, malodorous to purulent nasal discharge

Facial swelling or asymmetry

Increased respiratory rate

Difficulty or abnormal breathing

Diagnosis

History
Clinical signs
Physical exam
Radiography
Computed tomography
Sinoscopy
Endoscopy
Computed tomography (CT)
MRI

Support

Therapies

Therapies	Details
Identification and effective treatment of underlying or predisposed causes
Antibiotics
Repeated lavage of the sinus with balanced polyionic solution
Standing sinus flap surgery	A common surgical procedure that equine surgeons perform on sedated standing horses.
Sinoscopic surgery
Balloon sinuplasty
Transnasal laser sinonasal fenestration