Deafness in Pets Pet Prime Best Pet Clinic Gurgaon

  • Date: 20-10-2020
  • Post By: Dr Sapna Soni
  • Category: Veterinary Hospital in Gurgaon

Deafness or hearing loss may occur due to various reasons. There may be partial or complete hearing loss.

 

Below are the forms of Deafness in Pets:

 

  1. Sensorineural Deafness: It caused by damage to receptors in cochlea, cochlear nerve, or auditory pathways in central nervous system.
  2. Conduction Deafness: It caused by inability to conduct sound vibration through external to inner-ear structures.
  3. Hereditary Deafness: Breed-related cochlear degeneration of neonatal dogs and cats are observed which is closely associated with merle and piebald pigmentation genes. Recessive alleles of these genes alter the ability of neural crest melanocytes to populate regions of the body including skin, hair, iris, ocular tapetum, and portions of the cochlea. The absence of melanocytes in the stria vascularis of cochlea is associated with early post-natal degeneration of this structure. It can also be non-pigment associated such as in Doberman pinchers. Acquired cochlear degeneration may also occur due to chronic infection, ototoxicity, neoplasia, chronic exposure to loud noises, anesthesia-associated or age-related loss of hair cells and ganglion nerves as explained once by a vet who does dog vaccinations near me.
  4. Conduction Deafness: Sometimes ossicles that transmit vibration in middle ear get affected and becomes unable to conduct the vibration in the middle and inner ear. Dogs with blue iris color have a higher incidence of congenital deafness. Mixed-breed cats with white hair coat and blue irises high incidence of deafness as explained by Dr. Sapna Soni who is the C.E.O. at Pet Prime Veterinary Clinic (pet clinic in Gurgaon).

Acquired cochlea and cochlear nerve damage occurs due to various infectious, neoplasia of bony labyrinth or nerve, trauma, systemic or topically applied drugs or toxins which directly affects hearing tendency of the pets. Some ototoxic drugs like aminoglycosides are there which alters hearing tendency if use above the recommended dose. Chronic ear disease also may cause deafness if not treated in time.

 

How to diagnose deafness in pets?

  1. Deafness can be diagnosed by bacterial culture and sensitivity of ear canal if otitis externa is there.
  2. Myringotomy can be done with culture of aspirates if otitis media is present as explained by veterinary doctor near me.
  3. Imaging: Tympanic bullae and skull radiographs can be taken to scan the problem in the particular part of the ear. But it is not sensitive for otitis media or otitis interna due to complex structure and inability to reach in these parts.
  4. Otoacoustic emissions (OAEs)Deafness can be measured by this. In this test, low-level sounds produced by inner ear as part of the normal hearing process that can be measured by placing a probe containing a microphone in the external ear canal. OAE is best suited for cases with congenital deafness as it tests outer hair cell function and is not affected by inner hair cell, synapse or cochlear nerve deficiencies.

Deaf animals may be functional pets but require patience, specialized training, and extra protection from traffic as suggested by vet doctor near me.

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