Description
- The term epistaxis is derived from the Greek word epistazein (epi –above,over ; stazein– to drip)
- It is defined as the bleeding from the nasal cavity. Epistaxis is a common symptom of diverse conditions which may present as mild recurrent bleeds or severe life threatening rhinological emergency
- Epistaxis appears to occur more often in males than in females
Classification:
Epistaxis can be classified by its anatomical location into anterior & posterior
Anterior epistaxis
- is more common
- More than 90% of episodes of epistaxis occur along the anterior nasal septum, which is supplied by Keisselbach’s plexus in a site known as the Little’s area
- Bleeding causes blood to flow out through the nsotrils
Posterior epistaxis
- Approximately 10% of episodes of epistaxis are posterior
- Generally arises from the posterior nasal cavity via branches of the sphenopalatine arteries
- Blood runs down the throat
Epistaxis can also be divided into primary or secondary
- Primary causes account for 85% of episodes and are idiopathic, spontaneous bleeds without any notable precipitant
- Bleeds are considered secondary if there is a clear and definite cause (e.g. trauma, anticoagulant use, post surgical)