Cochlear ImplantationCochlear ImplantsDeafnessHearing Loss, BilateralHearing Loss, SensorineuralHearing LossRound Window, EarSpeech PerceptionAudiometry, Pure-ToneHearing TestsScala TympaniVestibulocochlear Nerve DiseasesLanguage DevelopmentTemporal BoneCorrection of Hearing ImpairmentPersons With Hearing ImpairmentsHearing Loss, CentralCHARGE SyndromeCochleaHearing Loss, UnilateralAuditory ThresholdTreatment OutcomeStapes SurgeryAudiometry, Evoked ResponseAudiometrySpeechElectrodes, ImplantedCochlear NerveHearing AidsHearingEducation of Hearing DisabledEvoked Potentials, AuditorySpeech IntelligibilitySpiral GanglionConstitution and BylawsPostoperative PeriodOtologic Surgical ProceduresChloral HydrateVestibular DiseasesAcoustic StimulationHearing Loss, SuddenOtosclerosisLanguage TestsChild LanguageSpeech Discrimination TestsPostoperative ComplicationsRetrospective StudiesAuditory CortexSound LocalizationEmbryo Implantation, DelayedTime FactorsTinnitusMeningitis, PneumococcalEvoked Potentials, Auditory, Brain StemFollow-Up StudiesLens Implantation, IntraocularVocabularyProspective StudiesAuditory PerceptionHair Cells, AuditoryEar, InnerLanguageElectric ImpedanceBariatric SurgeryPatient SelectionProsthesis DesignStentsParentsPacemaker, ArtificialUterusPregnancyCataract ExtractionGeneral SurgeryCardiac Surgical ProceduresThoracic SurgeryEndometriumProstheses and ImplantsAge Factors