I- stroke iwukulimala kwengxenye yobuchopho ngenxa yokungeneli kwegazi. Kunezimbangela eziningana zesifo sohlangothi.
Ukubaluleka kokuthola ukunikezwa kwegazi okwanele eBrain
Isizathu esivame kakhulu sokushaywa yisifo ukuvinjelwa kokugeleza kwegazi ngaphakathi kwesitsha segazi ebuchosheni. Imishanguzo esezintanyeni nasebuchosheni inikeza igazi ebuchosheni ukuze iqhubeke isebenza.
Leli gciwane linikeza oksijini kanye nezakhi ezidingekayo ukuze ubuchopho budale amandla e-biochemical okudingeka kusebenze ngokujwayelekile.
Uma i-Blood Flow kuya eBrain iphazamisekile
Uma igazi ligeleza ngaphakathi kwesitsha segazi livinjelwe, isifunda esiseduze sobuchopho sinqatshelwe umoya we-oxygen kanye nezakhi ezibalulekile. Lokhu kubizwa ngokuthi i-ischemia. Umphumela wukuthi ukuntuleka kwegazi kwenza kube nzima esifundeni esithintekile sobuchopho ukusebenza. Uma ukungabi khona kwegazi kufushane kakhulu, bese kubuyiselwa, isifo esibuyiselwayo, esibizwa nangokuthi i- TIA noma i-mini-stroke izobheka. Uma ukugeleza kwegazi kungabuyiselwa ngokushesha, ukulimala kuzoba okubanzi- okungenzeka kube okuhlala njalo, okwenza kube nesifo.
I-Blood Flow iphazamiseke kanjani?
Ihluli
Ukuphazamiseka kokugeleza kwegazi kungenzeka ngenxa ye-clot yegazi, ebizwa ngokuthi i-thrombus noma i-embolus. Lokhu kubangela ukushaywa kwe - ischemic .
I-Thrombus
I-thrombus yi-cloth ekhethiwe noma ephelele yomthambo ngenxa ye-clot yegazi.
Embolus
I-embolus yi-clot yegazi eqala ekuqaleni emthini, bese ivula futhi ihambe ize ifinyelele umthambo ebuchosheni, okwenza kube nokuvinjelwa nokulimala ebuchosheni.
Ukulimaza
Esinye imbangela yokushaywa yisifo kuphaphaza ebuchosheni. Uma isitsha segazi siqhekekile, igazi liphuma, lidale ukucasula kumathishu asobuchopho abaseduzane.
Uma isitsha segazi sihlukaniswa futhi ukulahleka kwegazi kwenzeka, kukhona nokunikezwa kwegazi okwanele endaweni okuhlosiwe kuyo ebuchosheni. Uhlangothi olubangelwa ukuphuma kwegazi kusuka emthonjeni wegazi ovuzayo noma oluqhekekile luyisifo esibi kakhulu .
Hypoperfusion
Ukunikezelwa kwegazi okuphansi echosheni kuyimbangela engavamile yokushaywa yisifo. Uma umthamo wegazi noma wegazi emzimbeni uphansi kakhulu, ubuchopho bungase bungatholi igazi elanele. Ngesikhathi kungekho-clot yegazi kule nkathi, ubuchopho buhlupheka ngenxa yokuthi izindawo zobuchopho ezivame ukuhlinzekwa yizandiso zamarridi ezincane ezinama-branched angeke zithole ukunikezwa kwegazi okwanele. I-stroke ephumela ekutheni igazi eliphansi libizwa ngokuthi i-stroke. Izindawo ezithile zobuchopho zithinteka kakhulu ekushayweni kwe-groundwater.
Izimbangela Ezivamile Ze-Stroke
Izifo Ze-Cerebral of Stroke
* Aneurysm- lokhu kukhishwa kwe-artery. I-aneurysm ingase ivule noma iphuke, ibangele ukubola kwesimiso.
* I-AVM / i-arteriovenous malformation-leli yiqembu elingenalutho lemithambo yegazi exhunyiwe, evame ukuqukethe imishanguzo nemivimbo. I-AVM ingase ihlukane noma ifake i-thrombus, ebangela ukushaya kwesifo esibuhlungu noma ischemic.
* I-Vasospasm-lokhu kungukuthi umthambo uvele uphazamise ngokuphazima kweso, ukuphazamisa ukugeleza kwegazi nokubangela ischemia ngisho nangaphandle kwegazi legazi.
I-Cadiac Causes of Stroke
* Amazwi e-Arrhythmia-okungavamile kanye nemigomo yezinhliziyo ezingavamile njenge-fibrillation engasetshenzisiwe engasetshenziswanga ingakhuthaza ukwakhiwa kwegazi elimhlophe futhi lenze ukuba ama-embolus ahambe ebuchosheni.
* Ukuhlaselwa kwenhliziyo - kungabangela ukuthi i-waterhed infarct noma ingabangela ukuba ama-embolus ahambe ebuchosheni.
* I- Carotid Artery Disease - lokhu kuyisifo nokugubha ngaphakathi kwemithambo yegazi elise entanyeni enikeza ubuchopho. I-embolus emthini we-carotid noma ukuvinjelwa komshini we-carotid ingabangela isifo.
* Ukushisa ngokweqile- okubangela isifo sofuba, isifo se-carotid nesifo senhliziyo.
Ukwengeza, iziqephu eziphuthumayo ze-hypertension zingase zenze i-vasospasm noma i-hemorrhage ye-aneurysm.
Izimbangela Zesisindo Sokushaya Isisu
* I-Hypotension- ingenzeka ngenxa yokulahlekelwa igazi okujulile noma ukuphelelwa amandla kwamanzi, okubangelwa i-hypoperfusion yobuchopho nokushaya kwesisu.
* Imishanguzo- imishanguzo ethinta igazi ukugaya, ukuphuma noma ukucindezeleka kwegazi kungaholela esivinjweni.
* Izidakamizwa-izidakamizwa ezingekho emthethweni ezifana ne-cocaine, i-methamphetamine, nezinye izivuselelo ezinamandla zingabangela i-vasospasm nganoma yisiphi isitha emzimbeni. Lokhu kungabangela ukuhlaselwa yinhliziyo, isifo ngenxa ye-vasospasm ye-artery cerebral, noma ukukhipha i-clot yegazi engakwazi ukuya ebuchosheni, okwenza kube nesifo.
* Ukuphazamiseka kwegazi - kungabangela ukwanda kwenzalo yegazi noma ukukhuphuka kwegazi.
* Ukutheleleka - kungashintsha ukuguqulwa kwegazi komzimba noma ukuphuma kwegazi, okuholela ku-thrombus, i-embolus noma i-hemorrhage. Ezimweni ezingavamile, izidakamizwa ezithathelwanayo zingakwazi ukuvimba umkhumbi wegazi ngokomzimba, okwenza ischemia.
* Ukuvuvukala-kungasiza ekwandeni kwegazi.
* I-air embolus- i-bubble emoyeni ehambela ebuchosheni esuka kwenye indawo emzimbeni, ingavimbela isitsha segazi, futhi idale isifo.
Imithombo
Weiner, William J., Goetz, Christopher G, Neurology ku-Non-Neurologist, Edition Fifth, uLippincott Wiliams & Winkins, ngo-2004
UMartin Samuels noDavid Feske, I-Office Practice of Neurology, 2 Edition, uChurchill Livingston, 2003