Non-pulsatile tinnitus

Non-pulsatile tinnitus is a form of tinnitus where there is a continuous ringing sensation of the ears. It is thought to have a considerable subjective component in many individuals.

Pathology

Many factors have been postulated, inclusive of ^1-5:

• cerumen impaction

• middle ear infection

• medication

• noise-induced hearing loss

• presbycusis

• hemorrhage

• neurodegeneration

• idiopathic intracranial hypertension ³

• carotid canal dehiscence ⁵

• high riding jugular bulb ⁵

• lower pneumatization of the anterior part of the petrous bone around internal carotid artery ⁵

• mastoid emissary vein enlargement ⁵