Canadian Medical Guide > Diseases > Otorhinolaryngologic Diseases > Ear Diseases > Hearing Disorders > Hearing Loss Terms and Definitions

Hearing Loss

Medical Definition:	A general term for the complete or partial loss of the ability to hear from one or both ears.
Guide Notes:	GEN or unspecified; prefer specifics

Hearing Loss Categories.

	Deafness - A general term for the complete loss of the ability to hear from both ears.
	Hearing Loss, Bilateral - Partial hearing loss in both ears.
	Hearing Loss, Conductive - Hearing loss due to interference with the mechanical reception or amplification of sound to the COCHLEA. The interference is in the outer or middle ear involving the EAR CANAL; TYMPANIC MEMBRANE; or EAR OSSICLES (OTOSCLEROSIS).
	Hearing Loss, Functional - Hearing loss without a physical basis. Often observed in patients with psychological or behavioral disorders.
	Hearing Loss, High-Frequency - Hearing loss in frequencies above 1000 hertz.
	Hearing Loss, Sensorineural - Hearing loss resulting from damage to the sensorineural elements of the COCHLEA which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.
	Hearing Loss, Sudden - Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.

Hearing Loss Medical Definitions and Terms

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