<prompt> Which of the following statement regarding cochlear implant is true:Cochlear malformation is not a CI to its useContraindicated in children 5 yrs of ageIndicated in mild-moderate hearing lossApproached through oval window  <response>: Ans. A Cochlear malformation is not a CI to its useRef. Current Otolaryngology 3rded p 8S6; Dhingra 5thed p 739-740ExplanationAs discussed earlier Cochlear implants are useful in Bl severe to profound hearing loss and not in mild-moderate hearing loss :. Option C is incorrect Dhingra Sthed p 139, 6thed p 125Cochlear implants can be implanted in children at 12 months of age, rather early implantation gives better results. Dhingra 5thed p 139, 6th led p 125The timing of implantation is very impoant. Earlier implantation in children generally yields more orable results and many centers roultinely implant children under 12 months of age:So friends-Option b-CI in children 5 years of age is incorrect.Approach for cochlear implants is facial recess, where a simple coical mastoidectomy is done first and sho process of incus and lateral semicircular canal is identified. The facial recess is operated by performing a posterior tymparotomy. A cochleostomy is then done inferior to round window Not oval window with the goal of affording access to scale tympani where the electrode has to be placed.Thus option d . it is approached through oval window is incorrect. So by exclusion are answer is a cochlear malformation is not a contradiction to its use. 