Isivinini sokuqhuba imizwa

I-Nerve conduction velocity (NCV) isivivinyo sokubona ukuthi amasiginali kagesi ahamba ngokushesha kangakanani emsipheni. Lokhu kuhlolwa kwenziwa kanye ne-electromyography (EMG) ukuhlola imisipha ngokungajwayelekile.

Izindwangu ezinamathelayo ezibizwa ngokuthi ama-surface electrode zibekwa esikhunjeni ngaphezu kwemizwa ezindaweni ezahlukene. Isiqephu ngasinye sinikeza umfutho omncane kagesi. Lokhu kuvuselela imizwa.

Umsebenzi ovelayo kagesi wenzwa uqoshwa ngamanye ama-electrode. Ibanga phakathi kwama-electrode nesikhathi okusithathayo ukuqhamuka kukagesi ukuhamba phakathi kwama-electrode kusetshenziselwa ukukala ijubane lamasignali wezinzwa.

I-EMG ukuqoshwa kusuka kuzinaliti ezibekwe emisipheni. Lokhu kuvame ukwenziwa ngasikhathi sinye nalolu vivinyo.

Kufanele uhlale ezingeni lokushisa lomzimba elijwayelekile. Ukubanda kakhulu noma ukufudumala kakhulu kuguqula ukuqhutshwa kwemizwa futhi kunganikeza imiphumela engeyona.

Tshela udokotela wakho uma une-defibrillator yenhliziyo noma i-pacemaker. Izinyathelo ezikhethekile zizodinga ukuthathwa ngaphambi kokuhlolwa uma unenye yalezi zinsiza.

Ungagqoki noma yiluphi ugcobo, i-sunscreen, amakha, noma i-moisturizer emzimbeni wakho ngosuku lokuhlolwa.

Umfutho ungazizwa njengokushaywa ugesi. Ungazizwa ungakhululekile ngokuya ngokuthi umfutho unamandla kangakanani. Akufanele uzwe ubuhlungu uma isivivinyo sesiphelile.

Imvamisa, ukuhlolwa kokuqhutshwa kwemizwa kulandelwa i-electromyography (EMG). Kulesi sivivinyo, inaliti ifakwa emsipheni bese utshelwa ukuthi usifinyeze leso sicubu. Le nqubo ingangakhululeki ngesikhathi sokuhlolwa. Ungaba nobuhlungu bemisipha noma ukulimaza ngemuva kokuhlolwa esizeni lapho kufakwe khona inaliti.

Lokhu kuhlolwa kusetshenziselwa ukuxilonga ukulimala kwemizwa noma ukubhujiswa. Ukuhlolwa kwesinye isikhathi kungasetshenziselwa ukuhlola izifo zesibindi noma imisipha, kufaka phakathi:

• I-Myopathy
• Isifo seLambert-Eaton
• I-Myasthenia gravis
• I-Carpal tunnel syndrome
• Umhubhe weTarsal syndrome
• I-neuropathy yesifo sikashukela
• Ukukhubazeka kwensimbi
• Isifo se-Guillain-Barré
• I-plexopathy ye-Brachial

I-NCV ihlobene nobubanzi benzwa nezinga le-myelination (ubukhona be-myelin sheath ku-axon) ye-nerve. Izinsana ezisanda kuzalwa zinamanani acishe abe uhhafu awabantu abadala. Amanani abantu abadala ngokuvamile afinyelelwa ngeminyaka engu-3 noma engu-4.

Qaphela: Amabanga wamanani ajwayelekile angahluka kancane kumalabhorethri ahlukile. Khuluma nomhlinzeki wakho wezokunakekelwa kwempilo mayelana nencazelo yemiphumela yakho ethile yokuhlolwa.

Imvamisa, imiphumela engajwayelekile ibangelwa ukulimala kwezinzwa noma ukubhujiswa, kufaka phakathi:

• I-axonopathy (ukulimala engxenyeni ende yeseli le-nerve)
• Ukuqhutshwa kwebhulokhi (umfutho uvinjelwe ndawo ethile endleleni yezinzwa)
• Ukudonswa kwamandla emzimbeni (ukulimala nokulahleka kokufakwa okunamafutha okuzungeze iseli lezinzwa)

Ukulimala kwemizwa noma ukubhujiswa kungenzeka ngenxa yezimo eziningi ezahlukahlukene, kufaka phakathi:

• I-neuropathy yotshwala
• I-neuropathy yesifo sikashukela
• Imiphumela yemizwa ye-uremia (kusuka ekuhlulekeni kwezinso)
• Ukulimala okubuhlungu kunzwa
• Isifo se-Guillain-Barré
• I-Diphtheria
• I-Carpal tunnel syndrome
• I-plexopathy ye-Brachial
• Isifo seCharcot-Marie-Tooth (ifa)
• I-polyneuropathy engapheli yokuvuvukala
• Ukungasebenzi kahle kwezinzwa ezivamile
• Ukungasebenzi kahle kwemizwa yangaphakathi
• Ukungasebenzi kahle kwemizwa yabesifazane
• UFriedreich ataxia
• I-paresis ejwayelekile
• I-mononeuritis multiplex (ama-mononeuropathies amaningi)
• I-amyloidosis eyinhloko
• Ukungasebenzi kahle kwemisipha
• Ukungasebenzi kahle kwezinzwa ze-sciatic
• I-amyloidosis yesibili yesistimu
• I-Sensorimotor polyneuropathy
• Ukungasebenzi kwemizwa ye-Tibial
• Ukungasebenzi kwemizwa ye-Ulnar

Noma iyiphi i-peripheral neuropathy ingadala imiphumela engajwayelekile. Ukulimala kwentambo yomgogodla kanye ne-disk herniation (i-herniated nucleus pulposus) enokucindezelwa kwezimpande zemizwa nakho kungadala imiphumela engajwayelekile.

Ukuhlolwa kwe-NCV kukhombisa isimo sezintambo zezinzwa ezisinda kakhulu. Ngakho-ke, kwezinye izimo imiphumela ingaba ejwayelekile, noma ngabe kukhona ukulimala kwemizwa.

I-NCV

• Isivivinyo sokuqhuba imizwa

UDeluca GC, uGriggs RC. Indlela eya esigulini esinesifo se-neurologic. Ku: IGoldman L, iSchafer AI, ama-eds. Imithi yeGoldman-Cecil. Umhla ka-26. IPhiladelphia, PA: Elsevier; 2020: isahluko 368.

UNuwer MR, uPouratian N. Ukuqapha ukusebenza kwe-neural: i-electromyography, ukuqhutshwa kwemizwa, kanye namandla akhishiwe. Ku: Winn HR, ed. Ukuhlinzwa Kwe-Youmans neWinn Neurological. Umhla wesi-7. IPhiladelphia, PA: Elsevier; I-2017: isahluko 247.