Noj qab haus huvTshuaj

Impedance - dab tsi yog nws thiab yuav ua li cas yog nqa tawm?

Thaum lub sij hawm lub neej ntawm peb tus ntxhiab yuav qhia rau peb li no: txo nyob rau hauv lub rooj sib hais, pom, losis. Tej zaum nws tshwm sim heev thaum ntxov, tej zaum - es lig, tab sis xyov peb tau mus pom ib tus kws kho mob. Ib tug ntawm cov kws txawj - otolaryngologist. Nws yog nws leej twg yuav to taub cov ua ntawm ailments.

Impedancemetry: yog dab tsi?

Impedance - yog ib tug instrumental txoj kev mob, uas yuav pab txiav txim seb qhov chaw nyob thiab qhov xwm ntawm lub rooj sib hais tsis tau. Nrog nws, koj yuav tau txais cov lus qhia txog tus txheej xwm ntawm lub hnov raj, cochlea, nruab nrab pob ntseg, raws li zoo raws li lawv innervating qab haus huv.

Qhov no txoj kev tso cai mus ntes cov kab mob xws li perforation ntawm lub nruas ntsej, timpanoskleroz, impaired patency ntawm lub hnov cov hlab, otitis media, otosclerosis thiab lwm tus neeg.

Acoustic impedancemetry nruab nrab tsis siv neeg ntsuas shear acoustic conduction nyob rau hauv nruab nrab pob ntseg thaum hloov cov cua kem siab thiab tej yam suab. Ntsiab lus ntawm nce mus nce los - ib tug acoustic ntawd, los yog conductivity ntawm cov lug ntawm lub txheej thiab nruab nrab pob ntseg thiab lub suab impedance.

tympanometry

Acoustic impedancemetry muaj xws li lub suab conductivity ntsuas tom qab huab cua siab hloov. Qhov no yog hu ua tympanometry. Lub apparatus no cov kev hloov nyob rau hauv kev yuav thaum lub siab tsub kom mus ob puas millimeters dej kem thiab tej hauv qab no -400 millimeters.

Kev yuav yog nyob ntawm seb zoo sib txawv ntawm lub siab nyob rau hauv lub sab nraud hnov kwj dej thiab nruab nrab pob ntseg. Qhov siab tshaj plaws nqi ntawm no Performance index yog sau npe thaum tib siab. Timpatogramme ntawm no taw tes yog qhia raws li lub siab tshaj plaws ncov. Raising los yog tej lub siab muab tus yam ntxwv nkhaus hloov. Feem ntau, nws yuav tsum zoo li cov tsab ntawv "L". Tsis hnov muaj nuj nqi ntawm nruab nrab pob ntseg hloov lub amplitude thiab zoo ntawm lub tympanogram.

Kev tshawb nrhiav ntawm tus cua muaj nuj nqi ntawm lub hnov raj

Impedance - yog dab tsi? Qhov no txoj kev ntawm ib tug meej kev xeem ntawm lub hnov hloov khoom nruab nrog rau nws yuav txo tau los yog distortion. Ib tug yog vim li cas tej zaum yuav Eustachian raj kawg. Nws ua tshaj adenoid nroj tsuag txoj kev loj hlob, lub cleavage ntawm lub zog palate phaj, oncological cov kab mob ntawm lub qhov ntswg thiab qhov ncauj, mucosal edema. Cov me nyuam tej zaum cai hnov raj patency vim lub yuav txo tau ntawm cov ntaub so ntswg elasticity thiab muaj nuj nqi mob velum leeg.

Impedance ntawm lub pob ntseg los mus txiav txim lub patency ntawm lub hnov raj yog muab faib ua peb theem:

  1. Kev ruaj ntseg kos. Tau Siv Hauv atmospheric siab rau ob tog ntawm lub tympanic membrane.
  2. KEV Valsalva. Lub nasopharynx yog artificially tsim ntshav siab, thiab tus neeg mob yog hais kom kaw qhov ncauj thiab qhov ntswg. Nyob rau hauv ib txwm patency yeeb nkab siab tshaj plaws nqi rau timpatogramme (ncov) coincides nrog lub siab tshaj plaws siab taw tes.
  3. Kev Toynbee. Kho cua possibilities Eustachian hlab thaum uas tsis muaj siab. Ua li no, tus neeg mob yog hais kom coj ib tug haus dej, tom qab kaw lub qhov ncauj thiab qhov ntswg.

reflexometer

Nyob rau hauv kev txiav txim tau mus xyuas seb puas muaj ib tug yuav txo tau ntawm lub stapedius nqaij (nws cia li nkaum kiag lub nruas ntsej) tom qab kis tau rau suab siv acoustic impedancemetry. Yuav ua li cas yog cov txheej txheem? Pob ntseg nrov tej yam uas txawv siv thiab ntim mus xyuas lub acoustic reflex.

Nyob rau hauv noj qab nyob zoo rau cov tib neeg, qhov no reflex pib yog nruab nrab ntawm rau caum rau cuaj caum decibels. Hloov cov nro ntawm lub tympanic membrane kaw rau ob sab, txawm yog hais tias tus lub suab yog ua li cas xwb nyob rau hauv ib lub pob ntseg. Qhov no reflex hais txog lub meej.

Muaj ob txoj kev uas yuav ua li cas txoj kev ua no:

  1. Ipsilateral, thaum lub suab rho tawm yog tau txais kev pab nyob rau hauv lub pob ntseg, uas yuav tsum tau soj ntsuam.
  2. Contralateral, Yog hais tias lub suab nrov yog hais mus rau hauv lub pob ntseg, uas yog tsis tam sim no nyob rau hauv kev tshawb nrhiav.

Reflexometer siv suab nrog ib zaus ntawm tsib puas, ib txhiab, ob txhiab thiab plaub txhiab Hertz, thiab broadband suab nrov.

Lub diagnostic nqi ntawm cov txheej txheem

Vim li cas koj xav tau impedancemetry? Yuav ua li cas yog nws thiab yog vim li cas yuav tsum nws yuav tsum tau nqa tawm? Qhov no kuj yooj yim txheej txheem tso cai rau tus neeg mob kom paub tias conductive thiab sensorineural tsis hnov lus, lub yeej ntawm lub xya los yim cranial paj, brainstem. Kawm Noninvasive, tsis mob thiab muaj nyob hauv txhua tus neeg mob, tsis hais hnub nyoog thiab welfare.

Diagnostic kev sensorineural lub rooj sib hais tsis yog cov nram qab no rau lub sijhawm:

- acoustic reflex yog cai nyob rau hauv lub suab nrov theem ntawm tsawg tshaj li tsib caug decibels;
- los ntawm tsib caug rau eighty decibels reflex kaw nyob rau hauv kev faib ua feem lug txhim khu lub suab;
- tom qab yim caum decibels reflex yog tsis tuaj kawm ntawv.

Acoustic reflexometer tsis muab tau nrog conductive tsis hnov lus, ces koj yuav siv no feature yuav qha tau nws los ntawm sensorineural. Lub yeej ntawm lub ntsej muag paj yuav muab ib tug reflex ntawm lub contralateral sab, tab sis nws tsis tuaj kawm ntawv - defeat. Ib tug ntaub ntawm ua txhaum ntawm lub hnov paj reflex muaj nuj nqi tsis muaj los ntawm lub cov pob ntseg, los yog los ntawm qhov noj qab nyob.

impedance-pH xyuas

Esophageal impedancemetry: yog dab tsi? Qhov no txoj kev txiav txim lub npag lus ntawm cov hlab pas phab ntsa, thiab dhau los ntawm nws kua thiab roj cua. Nws yog raws li nyob rau hauv ntsuas cov kuj nruab nrab ntawm ob electrodes, uas yog nkag tau rau hauv ntau qhov chaw ntawm lub digestive raj. Nyob rau tib lub sij hawm tshawb fawb yog ntsuas acidity.

Tus txheej txheem tso cai rau txiav txim seb lub hom reflux kab mob (acid, nruab nrab los yog alkaline), thiab nws cov qauv (gas los yog kua). Diagnostic kev GERD (gastroezofagialnoreflyuksnoy kab mob) yog los txo cov pH ntawm qhov nruab nrab mus txog plaub los yog tsawg dua, tab sis tsis ntev los no kev tshawb fawb refute no ziag no. Yog li ntawd, qhov tseem ceeb tau txais txhua hnub impedancemetry txoj hlab nqos mov.

Rau tus neeg mob no yog muab los ntawm lub qhov ntswg stylet, uas yog cov txheej txheem ntawm nyob rau hauv vaj huam sib luag luv detectors. Qhov no ntaus ntawv tso cai mus sau npe esophageal peristalsis thiab acidity ntsiab lus uas ntog mus rau hauv nws los ntawm lub plab.

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