Yintoni ebangela isifo sentliziyo?

Yintoni isifo sentliziyo?

Ngokuqhelekileyo ichazwa njenge-myocardial infarction, ebangelwa ukuvaleka kwegazi kwelinye lamasebe emithanjeni emibini ye-coronary ehambisa igazi kwi-heart muscle.

Intliziyo yimpompo efuna unikezelo oluqhubekayo lwegazi eline-oksijini ukubonelela izihlunu ngezondlo ezinoxanduva lomsebenzi wabo.Nakuphi na ukungabikho kwegazi (ischemia) kuphazamisa ukusebenza kwemisipha yentliziyo kwaye kunokukhokelela ekufeni kwezicubu zomzimba (i-ischemia) imyocardial infarction).

Imisipha yentliziyo inamandla okuzilungisa, ngaphandle kokuba ukunikezelwa kwegazi nge-oksijini kubuyela ngokukhawuleza kwisiqhelo kunye nonyango olufanelekileyo.

Ukuvaleka okukhulu komthambo wegazi kwenzeka xa igazi (elingahlwili ngokuqhelekileyo) linyanzeleke ukuba lijije ngenxa yokuba umthambo umthambo ucuthekile.

Isizathu esiphambili se-artery stenosis sisifo esibizwa ngokuba yi-atherosclerosis (i-atherosclerosis), inkqubo apho i-fatty substance equkethe i-cholesterol (i-plaque) ibeka kwaye iqokelele kwiindonga ze-artery.