I-OAE imele i-otoacoustic emissions, igama lezandi eziveliswa yi- cochlea . Ezi zandi zingasetyenziselwa ukuvavanya umsebenzi we-cochlea (umsebenzi wecala lweselula) kunye nezinye iindlebe zendlebe, kubandakanywa nenzwa yokuhlola.
Ukusetyenziswa
Uvavanyo lwe-Otoacoustic Emissions Ukuvavanya ukuvavanya kuvame ukuqhutywa kwiintsana ezisandul Uvavanyo lunokuqikelela ukuba uvavanyo lwentengo kunye nokuvavanya ukulahlekelwa kweendlebe.
Ukulahleka kwendlebe ekusebenziseni ngamanye amaxesha kuthiwa yi-non-organic hearing loss and is a condition where you have symptoms or behavior of hearing loss but there is nothing wrong in hearing.
Ezinye imithombo ingabhekisela kule nto njengelahleko lokuphulaphulwa kweendlebe kodwa oku kungenakulungile ngokupheleleyo njengoko oku kuthetha ukuba umntu "uyayifaka" kwaye lolu hlobo lokulahlekelwa kwintetho luvela kwimvelaphi eyahlukeneyo engekho rhoqo ngaphakathi kolawulo lwabantu ngabanye.
Uvavanyo lwe-Otoacoustic Emission Ukuvavanya ukuvavanya kusetyenziswa ngokubambisana ne- ABR (uvavanyo lwe-Auditory Brainstem Response) okanye ezinye iimvavanyo zokuvalelwa.
U vavanyo lwenziwa njani
Ukunyuka kwama-otoacoustic Ukuvavanya ukuvavanya akuva buhlungu kwaye iintsana ezininzi zilala ngqo. Iingcamango ezincinci zifakwe kwindlebe. Omnye uhambisa isandi kwaye enye imakrofoni. Ukuba i-cochlea isebenzayo ngokufanelekileyo kufuneka iphendule ngokuphendula kwisandi. Kukho iintlobo ezine zezandi ezivelisa i-cochlea:
- Ukukhishwa kwamacoustic ngokukhawuleza - i-cochlea ivelisa ezi zandi ngokuzenzekelayo (kungekhona ukuphendula kwesinye isandi). Ezi zenzeke kuphela malunga nama-40-50 ekhulwini labantu abanokuva.
- Ukukhutshwa kwe-otoacoustic ehamba phambili- eyenziwa ngokuphendula kwesinye isandi sexesha elifutshane (elifutshane). Ngokuqhelekileyo ucofa okanye i-tone-bursts. Ezi ziqhelekileyo zisetyenziselwa ukuvavanya ukuva kwiintsana.
- Imveliso yokuphazamiseka kwemveliso ye-otoacoustic - ikhiqizwa ngokuphendula kwiitoni ezimbini zangexesha elinye. Ezi zincedo ngokukhethekileyo ekufumaneni umonakalo kwi-cochlea ekuqaleni (umzekelo umonakalo kwi-cochlea kwi-ototoxicity okanye umonakalo obangelwa ngumsindo).
- Ukukhutshwa kwe-otoacoustic frequency-frequency - eyenziwa ngokuphendula kwitheyiphu eqhubekayo. Ezi aqhelekanga zisetyenziswe kwisimo sekliniki.
Ezinye iimeko zingabangela ukungabikho kwe-OAE. Ezi ziquka: i-cysts, i-otitis yangaphandle (indlebe yomncuba umzekelo), isitoli, okanye ukunyanzeleka kweendlebe ezingavamile, intonga ye- earform perforated , i-otosclerosis, i- cholesteatoma .
Ukuchaneka kweZiphumo
Uvavanyo lwe-OAE alukwazi ukuqonda ngokucacileyo ukulahlekelwa kwindlebe okanye ukungava. Ukuba uyaphula uvavanyo lwe-OAE uya kufuna iimvavanyo zokuvavanya ezongezelelweyo ukuze uqinisekise ukuba kukho ukulahlekelwa kwindlebe okanye kungekhona.
Ngamanye amaxesha uvavanyo lwe-OAE aluchanekanga ngenxa yokuba umntwana uswelekile ngexesha lokuvavanya kwaye ngamanye amaxesha iintsana zinamanzi ezindlebeni zabo okanye ezinye iimeko ezingabangela ukuba bahluleke ukuvavanya nangona bengenanto yokulahlekelwa kwindlebe. Ezinye izinto ezingenza ukuba uvavanyo lwe-OAE lwenzeke okanye lungalunganga lubandakanya:
- Ubungqina obuthathaka ngokujikeleza indlebe
- Ukucinywa kwe-Ear ear, ikakhulukazi ukuba kuthintela ukutywinwa kakuhle kwiprogram yeendlebe
- Iingxowa okanye izinto zangaphandle kwi-canal indlebe
- Isigulane esingasebenzi
Imithombo:
Medscape. Ukukhishwa kwe-Otoacoustic. Kufumaneka: NgoFebhuwari 29, 2016 ukusuka kwi-http://emedicine.medscape.com/article/835943- kwakhona ukubukela
NDCS. Ukuvalelwa kweNtsana olutsha. Kufumaneka: Ngomhla wama-28, 2010 ukusuka kwi-http: //www.ndcs.org.uk/family_support/newborn_hearing_skreening/index.html#
KwiSebe lezeMpilo lase-Utah. Abantwana abanezidingo eziNyango zeMpilo. Ukukhishwa kwe-Otoacoustic Exission Screening.
http://health.utah.gov/cshcn/SVS/otoacoustic.html