I-stroke yamanzi ebizwa ngegama ngoba ithazamisa eyodwa noma ngaphezulu kwezifunda zobuchopho ezibizwa ngokuthi 'izindawo ezingaphansi komhlaba.'
Izindawo zokugeleza komhlaba yizifunda zobuchopho okwamanje zithola igazi elivela emaqenjini amabili ahlukene we-arteries. Uma kukhona ukuvinjelwa noma ukuphazamiseka kokugeleza kwegazi kweminye imithwalo yegazi, kungaba yinkinga-okuholela ekuhlakalweni kwe-waterhed.
Izimpawu Nokuthola Ukuxilongwa Kwezingxabano Zomfula
Izifunda zomfula zengqondo zingathinteka ekunciphiseni kwegazi, okungabangela ukushaywa yisifo. Izimpawu zesifo sofuba zihlanganisa ubuthakathaka kanye / noma ukulahleka kombono ngakwesokudla noma ngakwesobunxele bombuso, ingalo noma umlenze. Uma ukushaywa kwe-groundwater kubangelwa ukucindezeleka kwegazi okweqile noma ukulahleka kwegazi okukhulu, izimpawu zingathinta izinhlangothi ezingakwesokudla nangakwesobunxele.
Ukushaywa komkhuhlane kungase kutholakale ngomlando wezinzwa kanye nokuhlolwa komzimba futhi kungabonakala ku-CT engqondweni noma ku-MRI yobuchopho.
Izimbangela zokugwedla kwamanzi
I-Ischemic Stroke
Ukuphazamiseka kwegazi nge-clot igazi esifundeni sobuchopho kungabangela ukushaywa kwe - ischemic kunoma iyiphi indawo yobuchopho, kufaka phakathi izifunda zasemanzini. I-Ischemia ibangela indawo yobuchopho ukuba 'ibulale' egazini. Ngenxa yokuthi igazi linikeza izakhi ezibalulekile kanye ne-oksijeni, isifunda esithintekile sobuchopho asikwazi ukusebenza esimweni se-ischemia , esibangela isifo.
Izifunda zomfula zengqondo zitholakala emagatsheni asekugcineni ekugcineni kwezindawo zamasundamu eziseduze (izinhlelo zokuhlinzeka ngamagciwane.) Lokhu kusho ukuthi amasethi amabili ahlukene we-arteries ahlinzeka igazi ezifundeni zasemanzini. Leli lungiselelo libukeka sengathi lizovikela izindawo ezisemanzini ezivela e-ischemia, kodwa akusho.
Eqinisweni, izifunda zomfula zixhomeke kuzo zombili izigaba ze-arteries ukuze zinikeze igazi elanele, ngakho-ke uma uhlelo olulodwa lokuphazamiseka kwegazi luphazanyiswa yi-clot yegazi, isifunda se-ocean of the brain sibhekene nokuphazamiseka kwegazi okuphazanyiswayo, okuholela ekuhlakalweni kwe-ischemic.
I-Low Fluid Volume / I-Low Blood Pressure
Ngenxa yokuthi izindawo ezihamba emanzini yizifunda ezikude kakhulu ezihlinzekwa yizinhlelo zokuhlinzeka ngamanzi, ukugeleza kwegazi okwanele nokucindezelwa kwegazi kufanele kugcinwe ukuqinisekisa ukuthi igazi elanele liqhutshwa kulezi zindawo. Izindawo ezikhukhulayo zengozini enkulu ngesikhathi sehla kakhulu kwegazi. Uma igazi eliphansi ligeleza ezindaweni ezingaphansi komhlaba lihlala isikhathi eside kunamaminithi ambalwa, izicubu ezisezindaweni zasemanzini ziqala ukufa, okubangela isifo ngenxa yezinga eliphansi legazi.
Izimbangela ezivamile zokushaywa kwamanzi zihlanganisa izenzakalo ezithinta igazi ekunikezeni ubuchopho. Ukuhlaselwa kwenhliziyo, okuthinta ikhono lokuphambanisa inhliziyo, okungase kubangele ukunciphisa ukugeleza kwegazi kuya ebuchosheni. Izindawo ezikhukhulayo zingase zibe yingozi ekucindezelweni kwegazi okuphansi kubantu abaye baphuthuma i-carotid stenosis, elula imithwalo yegazi entanyeni ethwala igazi ebuchosheni.
Ezinye izimo zingabangela ukucindezeleka kwegazi ngokuzumayo noma okukhulu.
Izimo zihlanganisa ukungcoliswa kwemvelo okunamandla, okwenza kube nomthamo ophansi we-fluid kuwo wonke umzimba. Ukutheleleka okukhulu, njenge-sepsis, isifo esasakazeke kulo lonke ukuhamba kwegazi, kungabangela ukucindezeleka kwegazi ukuba kwehle ngokuphawulekayo, okungabangela ukushaywa kwe-waterhed. Futhi ukuphuma kwegazi, okungahle kubangele ukulimala okukhulu kanye nokuhlukunyezwa, kungabangela ukulahlekelwa kwegazi okunjalo okungaka ukuthi ubuchopho abukamukeli okwanele kwegazi ezindaweni ezingaphansi komhlaba.
Ukwelashwa kwama-Strokes eWober
Njengazo zonke izibhamu, imivimbo yemifudlana idinga ukunakekelwa okuphuthumayo. Ukuphathwa kwamachashaza okumanzi kuhlanganisa ukubuka okuqaphele nokuphathwa ngokucophelela kwezokwelapha.
Uma uke wahlaselwa isifo se-ischemic ngenxa ye-clot yegazi, kufanele ulindele ukuthola ukwelashwa kwesisu okugxilwe ekugxilweni kwegazi nokuqiniswa kwezokwelapha. Uma uye waba nesifo sofuba ngenxa yokulahlekelwa kwegazi okujulile noma ukucindezeleka kwegazi okuphansi, khona-ke ukwelashwa kwakho kungenzeka kugxile ekulondolozeni uketshezi olwanele nengcindezi yegazi.
Izwi elivela
I-stroke iyisenzakalo esiyinhloko esishintsha impilo yakho. Njengoba usuphuluka esivinini sakho, cishe uzothola ukubhekwa kwezokwelapha okukhomba ukuthi unayo yini ingozi yokushaywa yisifo . Uma ufunda ukuthi unesisindo se-stroke, ungathatha izinyathelo zokuvimbela omunye uhlangothi ukuthi lungenzeki.
> Ukufunda okuqhubekayo:
> I-Pathophysiology Ye-Waterfall Infarction: Isifundo Sokufunda Nge-Angiography Isikhathi Esine-Dimensional Magnetic Resonance, Weill C, Suissa L, Darcourt J, Mahagne MH, J Stroke Cerebrovasc Dis. 2017 Sep; 26 (9): 1966-1973. doi: 10.1016 / j.jstrokecerebrovasdis.2017.06.016. I-Epub 2017 Jul 8.