Uxinzelelo lwegazi oluphezulu lubizwa ngokuba "isifo esicacileyo," kuba ngokuqhelekileyo asizivakalisi nangayiphi na imiqondiso ephawulekayo kwaye ayinayo impawu. Nangona kunjalo, kukho impawu embalwa kakhulu, kunye kunye nempawu ezilumkiso kwimbali yonyango, ngokuqhelekileyo yenza ugxininisa ugqirha wegazi. Phakathi kwezi zinto, ukuphindaphindiweyo okanye ukuphuka kwentloko kwinto eyona nto yayisondele kakhulu kwi-"real" ephezulu yexinzelelo lwegazi.
Intloko okanye ngaphezulu?
Kuye kwaphawulwa ngamashumi eminyaka ukuba abantu abanexinzelelo lwegazi elibonakalayo baziva bexhatshazwa rhoqo kwaye banentloko. Inzululwazi kunye ne-physiology emva kweentloko ziya kunika inkxaso kulo mbono, kunye nokunyuswa kwengcinezelo yegazi kubangela into ebizwa ngokuba yi-autoregulation kwimigu yegazi ehamba phakathi kwezicubu ezingaphantsi kwegazi (apho ezininzi iintloko ziqala). Ngamanye amazwi, ukulawulwa kwegunya kukukhokelela ekumanyeni kwemithambo yegazi, isizathu esaziwayo kakhulu seempawu zentloko.
Uphando oluvela eNorway, ke, luchaza ukuba abantu abanexinzelelo lwegazi abanokuba neentloko ezincinci kunezo zinegazi eziqhelekileyo. Izifundo, ezenziwa kwizigulane zaseNorway kwaye zanyatheliswa kwiphephancwadi enkulu yezokwelapha e-United States, zenzelwe ukulandelelaniswa nophando lwangaphambili kwaye zafumanisa ukuba abantu abanexinzelelo ephezulu yegazi abazange baphathwe ngokunyanga babengaphantsi kwama-50% amathuba okuba bahlupheke intloko kunezigulane ezinempembelelo zempilo ezifanayo kodwa uxinzelelo lwegazi oluqhelekileyo .
Phakathi kwabathathi-nxaxheba kweso sifundo, abo abaneempembelelo eziphezulu ze- systolic kunye noxinzelelo lwe-pulse wider babonakala beyona nto ikhuselekile kwi-headache. Kuyathakazelisa ukuba izigulane ezinegazi eliphezulu ezifumana unyango zazibonakala zinengozi yokuphathwa kwentloko efana neyezigulane ezinegazi eliqhelekileyo.
Ulwalamano olunobungozi / unyango lwentloko luye lwaqhubeka nangakumbi kwizigulane ezaqhubeka ziphakamileyo kwigazi zabo ezifundwayo nangona kukho unyango. Oku kuphakamisa ukuba ingozi yentloko ingakhula njengoko uxinzelelo lwegazi luwela.
Abaphandi abakwaziyo ukuba kutheni umfutho wegazi ophezulu ukhusela iintloko. Iingcamango zivela kumanqanaba atshintshiwe ama-hormone athile kunye neekhemikhali zegazi kwiimeko ezahlukileyo kwi-artery yokuqina - iirriyiti ziba nzima ukunyuka kwengcinezelo yegazi, esinye sezizathu eziphambili ukuba uxinzelelo lwegazi oluphezulu lunokubangela ukuba umonakalo wendiza yegazi.
Iingcamango Zokugqibela
Nangona le nto ingaba yincwadana encinci yeendaba ezilungileyo kulabo abanengxaki yegazi ephezulu, ingozi yexinzelelo lwegazi ephakamileyo iphezulu kakhulu kunanoma yiyiphi inzuzo yokunciphisa intloko. Ukuba uphathwa ngexinzelelo lwegazi eliphezulu kwaye uxhwala kwiintsholongwane eziqhelekileyo okanye ezinzima, akufanele uyeke ukuthatha amayeza akho. Kunoko, unokufuna iyeza ezahlukeneyo kwaye ufanele uthethe nodokotela wakho.
Imithombo:
Tronvik E, Stovner LJ, Hagen K, Holmen J, i-Zwart JA. Uxinzelelo olusenyongweni olukhuselekileyo lukhusela phezu kwentloko: idatha ehamba phambili kunye neyinqamaniso (i-HUNT study). Neurology. 2008 Apr 15; 70 (16): 1329-36.