I-stroke ingumonakalo wobuchopho obangelwa ngenxa yokuphazanyiswa kwegazi okuyingxenye yobuchopho. Lokhu kwenzeka njengomphumela wokuvinjelwa kwesitsha segazi noma ukuphaphaza kwesitsha segazi ebuchosheni. Uhlangothi oluvame ukubizwa ngokuthi yi-part of the brain or the blocked blood vessel. Umshini we-cerebral artery (MCA) uhlangothi olunezibhamu ezinkulu kakhulu ezibhekwa kakhulu.
Iyini i-Middle Cerebral Artery Stroke?
I-MCA isifo sokuphazamiseka kokugeleza kwegazi ezindaweni ezibuchopho ezithola igazi phakathi komshini we-cerebral. Lezi zifunda zihlanganisa lobe parietal , lobe temporal kanye capsule yangaphakathi kanye thalamus.
Uma wonke umthambo we-cerebral ophakathi usuvinjelwe, umphumela uyisisindo esikhulu semikhumbi esithinta yonke indawo yendawo yomkhakha we-cerebral artery-yiyo yonke indawo yobuchopho obuthola igazi ngokusebenzisa umthambo we-cerebral central. Ukushaya kwesifo se-MCA kubangela ukulahlekelwa kwelulwimi , ubuthakathaka ohlangothini oluphambene lomzimba, ukwehluleka kokuzwela ohlangothini oluhlukile lomzimba nokukhubazeka kombono.
Uma kuphela igatsha elincane lomcibisholo we-cerebral eliphakathi livinjelwe, umphumela omncane wezitsha zomkhumbi, okuthinta isigaba esincane se-artery central artery territory. Lokhu kuvame ukungathí sina.
Kungani I-Artery Cerebral Artery Isiphazamiseka?
Izigameko ze-MCA ngokuvamile ziyi-embolic ngokumelene ne-thrombotic.
Lokhu kusho ukuthi ngokuvamile ukushaya kwesifo somswakama we-cerebral kubangelwa i-clot yegazi eyahamba kwenye indawo emzimbeni, ngokuvamile esuka enhliziyweni noma emthonjeni we-carotid, futhi efakwe emgodini we-cerebral central, evimbela ukugeleza kwegazi.
Kunezici eziningana zobungozi bokushaya kwesifo se-MCA, kufaka phakathi isifo senhliziyo , isifo se- carotid artery kanye nezici ezingozini ezingabangela isifo kunoma iyiphi indawo ebuchosheni, njenge-cholesterol ephezulu, umfutho wegazi ophezulu nesifo sikashukela.
Uphi Amarethri Okuphakathi Aphakathi?
Kunemibhoshongo emibili ye-cerebral ephakathi: umthambo we-cerebral ophakathi nendawo ne-artery middle cerebral artery. Imishanguzo ye-cerebral ephakathi nangakwesokunxele yimizila ebalulekile yegazi ephuma emgodini we-carotid wangaphakathi nangakwesokunxele.
Umshini ngamunye we-carotid wangaphakathi igatsha lombuso ovamile ovamile we-carotid, okuyinto imithwalo yegazi emikhulu ehlangothini ngalunye lwentamo. Imishanguzo ejwayelekile ye-carotid ejwayelekile ijwayele ukubonisana izithombe, futhi umshini ngamunye ovamile we-carotid uhlukanisa phakathi komthambo we-carotid wangaphandle kanye nomshini wangaphakathi we-carotid. Khona-ke, ngaphakathi kwekhono, umshini wangaphakathi we-carotid uqhubeka uhlukanisa emithanjeni eminingana ehlinzeka igazi ebuchosheni, okuyinto enkulu kunayo yonke imithini ye-cerebral artery.
Imishanguzo ye-cerebral ephakathi kwesokunxele neya kwesokudla ngayinye inikeza ingxenye ebalulekile yobuchopho ngegazi elicebile nelinempilo ecebile.
Ngabe i-Middle Cerebral Artery Yenzani?
Imishanguzo ebuchosheni c yenza igazi ukuletha oksijini kanye nezakhi kumqondo. Imishanguzo ehlukene ihlelwe njengamapayipi ahamba ezifundeni ezahlukene zobuchopho. I-artery ngayinye inikeza ingxenye ehlukile yobuchopho.
Ingxenye yobuchopho ethola igazi emthonjeni othize ibizwa ngokuthi 'insimu' yalowo mshini.
I-artery cerebral arteries inikeza insimu enkulu ebuchosheni obandakanya i-lobe yesikhashana, i-lobe parietal, i-capsule yangaphakathi, i-thalamus kanye nengxenye ye-lobe yangaphambili. Ngakho-ke, uma ukugeleza kwegazi emgodini we-cerebral ephakathi kungasebenzi, imisebenzi ejwayelekile eyenziwa yizi zindawo zobuchopho isuke isonakele.
Ukuxilongwa, Ukwelashwa Nokubuyiswa
Ukushaya kwesifo se-MCA kuphakathi kwezinhlobo ezibonakala kalula ze-stroke, futhi kungase kudingeke nokuba nocwaningo lokucubungula ubuchopho ukuqinisekisa ukuxilongwa.
Ngenxa yokuthi uhlangothi lwe-MCA lungase lube nesifo esikhulu, isimo sesikhathi esifushane senziwa ngokucophelela okukhulu . Abanye abantu abahlangabezana nokushaywa yi-MCA bangamakheli okuphuthumayo nge- TPA noma abaqaphi begazi, kuyilapho abanye bengase badinge ukuphathwa ngokucophelela kokuketshezi nokubona okuqaphele.
Izwi elivela
Uma wena noma othandekayo uye wabhekana nesifo socansi se-MCA, khona-ke ukutakula kwakho kungathatha isikhathi, ikakhulu uma ngabe yonke i-MCA ivinjelwe, okwenza kube nesifo esikhulu. Ukutakula isikhathi eside nokuvuselelwa kungathatha izinyanga noma ngisho neminyaka. Kodwa-ke, ngisho nemivimbo eqinile ingabangela ukutakula kahle, futhi abantu abaningi abathola ukushaywa kwe-MCA bayakwazi ukubuyisela abanye noma yonke imisebenzi ngemva kokushaywa.
> Ukufunda okuqhubekayo:
> Impact ye-MCA stenosis emphumela wokuqala ezigulini ezinzima zokuhlaselwa kwe-ischemic, abaphenyi base-Taiwan Stroke Registry, i-PLoS One. 2017 Apr 7; 12 (4): e0175434. i-doi: 10.1371 / iphephandaba.pone.0175434. eCollection 2017.