Changes

== Introduction ==

== Introduction ==

Epistaxis is the presence of blood at the external nares. It is not a condition alone and there are many underlying conditions that cause this clinical sign. There are many causes of epistaxis, which fall into various categories. Below is a comprehensive list of all causes of epistaxis.

Epistaxis is the presence of blood at the external nares. It is not a disease alone and there are many underlying conditions that cause this clinical sign. There are many causes of epistaxis, which fall into various categories. Below is a comprehensive list of all causes of epistaxis.

<br>

<br>

'''Respiratory Tract'''

'''Respiratory Tract'''

* [[Rhinitis#Infectious causes of rhinitis|Nasal aspergillosis]]

:: [[Aspergillosis|Nasal aspergillosis]]

** [[Nasal Cavity Hyperplastic and Neoplastic - Pathology#Progressive ethmoidal haematoma|Ethmoidal haematoma]]

:: [[Progressive Ethmoidal Haematoma|Ethmoidal haematoma]]

** [[Exercise Induced Pulmonary Haemorrhage]]

:: [[Exercise Induced Pulmonary Haemorrhage]]

** Rupture of rectus capitus

:: Rupture of rectus capitus

** [[Guttural Pouch Mycosis|Mycotic infection of guttural pouches]]

:: [[Guttural Pouch Mycosis|Mycotic infection of guttural pouches]]

** Nasolacrimal haemorrhage

:: Nasolacrimal haemorrhage

** Nasal/ pharyngeal trauma

:: Nasal/ pharyngeal trauma

** Nasal/ pharyngeal foreign body

:: Nasal/ pharyngeal foreign body

** [[Paranasal Sinuses Neoplasia|Sinus neoplasia]]

:: [[Paranasal Sinuses Neoplasia|Sinus neoplasia]]

** [[Nasal Cavity Hyperplastic and Neoplastic - Pathology#Nasal and paranasal sinus cysts|Sinus cyst]]

:: [[Sinus Cysts|Sinus cyst]]

** [[Sinusitis]]

:: [[Sinusitis]]

** Lower airway disease

:: Lower airway disease

** [[Pulmonary Neoplasia|Pulmonary neoplasia]].

:: [[Pulmonary Neoplasia|Pulmonary neoplasia]].

 

'''Cardiac'''

'''Cardiac'''

* Mitral insufficiency

:: [[Mitral insufficiency]]

** Atrial fibrillation

:: [[Atrial Fibrillation|Atrial fibrillation]]

 

'''Skeletal'''

'''Skeletal'''

Head trauma, such as rupture of the longis captis muscle or the rectus capitus, or a basihyoid fracture can all cause epistaxis.

::Head trauma, such as rupture of the longis captis muscle or the rectus capitus, or a basihyoid fracture can all cause epistaxis.

 

== Clinical Signs ==

== Clinical Signs ==

Depending on the disease, the clinical signs will involve epistaxis +/- other signs related to the condition.

Depending on the disease, the clinical signs will involve epistaxis +/- other signs related to the condition.

== Diagnosis ==

== Diagnosis ==

Need to find the underlying cause, by varoius methods such as endoscopy, radiographs and a full physical exam at rest and at exercise. Other clinical signs such as the characteritics of nasal discharge and any asymmetry of the face are key clinical signs. History is important in diagnosis, such as if there is any history of trauma.

Need to find the underlying cause, by various methods such as endoscopy, radiographs and a full physical exam at rest and at exercise. Other clinical signs such as the characteristics of nasal discharge and any asymmetry of the face are key clinical signs. History is important in diagnosis, such as if there is any history of trauma.

== Treatment and Control ==

== Treatment and Control ==

To treat epistaxis, one will need to find the underlying cause and treat this.

To treat epistaxis, one will need to find the underlying cause and treat this.

[[Category:Respiratory Diseases - Horse]][[Category:Vascular Diseases - Horse]][[Category:To_Do_-_Respiratory]]

[[Category:Respiratory Diseases - Horse]][[Category:Vascular Diseases - Horse]][[Category:Expert_Review - Horse]]

[[Category:Cardiology Section]]