ENT · Otologic Surgery and Implants (Tympanoplasty, Mastoidectomy, Cochlear/BAHA Implants)

A patient with single-sided deafness (SSD) and intact contralateral hearing is best rehabilitated with which device?

  • A Conventional hearing aid on the deaf side
  • B Cochlear implant is absolutely contraindicated
  • C BAHA (bone-anchored hearing aid) or CROS aid
  • D Contralateral routing of signals (CROS) hearing aid — the only option
Correct answer: C. BAHA (bone-anchored hearing aid) or CROS aid

Explanation

In single-sided deafness, a conventional air-conduction hearing aid provides no benefit because the cochlea is non-functional. BAHA works by bone conduction routing sound to the contralateral cochlea; a CROS aid routes sound from the dead side to a receiver in the hearing ear. Cochlear implantation is increasingly used in SSD and not absolutely contraindicated. Hence B correctly identifies both principal options.

Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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