简介：Background:Currently,thereisasignificantlackofdataconcerninglong-termoutcomesfollowingpaediatriccochlearimplantationintermsofqualityoflife.Thereisaneedforalong-term,prospectivestudyinthisregard.Thisstudyaimsathighlightingthepreliminaryresults,oneyearpostsurgeryofafiveyearprospectivestudy.Methods:TheCochlearTMPaediatricImplantedRecipientObservationalStudy（P-IROS）isaprospective,patientoutcomesregistryforroutinelyimplantedchildren.Thestudycollectsdatausingquestionnairespost-surgeryandatregularintervalsuptofiveyears.Results:AtourCentre,159cochlearimplantsurgeryprocedureswerecarriedoutbetweenJanuary2014andDecember2014.CategoryofAuditoryPerformanceIIscoreincreasedfrom‘0’to‘3’atsixmonthsandto‘5’at12monthsforchildrenaged0—3years,althoughthiswasnotstatisticallysignificant.However,thesametrendwasstatisticallysignificantfortheage3—6yearandage6—10yearbrackets.Thequalityoflifeofthechildimprovedsignificantly.Analysisofcommunicationmoderevealedastatisticallysignificantoverallshifttotheauditory-oralmodefromtotalcommunication.Conclusion:Cochlearimplantationisalife-changingintervention.Theevidenceinsupportofwhatitcanachievesafelyisclear.However,thecostsassociatedwithitraisethequestionifitwillremainaneffectiveoptionforlifeinallchildren.TheCochlearP-IROSisanattempttoanswerthesameoverafiveyearperiod.OurstudyinNewDelhi,sofarconcludesthatcochlearimplantationinapopulationwithlimitedaccesstofundsisveryeffective,oneyearaftersurgery.