ECG izinguquko phasic e isilethikusebenza

Indlela eyinhloko ukuxilongwa isilethikusebenza - ukuhlaziywa nenqubo electrocardiographic ngoba ukwephulwa kwegazi yenhliziyo. ECG - ocwaningweni esisemqoka esivimba amanzi eqinisekisa sitholakele isifo. Ngeke indawo imuphi omunye, kanye ECG ngesikhathi blockades.

isilethikusebenza noma necrosis libhekene izinguquko lezivakashi ezicutshini zesivikelo sesifuba. izicubu Necrotic akusho iqhaza ngokuziphatha excitation. Ngakho-ke, ECG phezu izindawo necrosis kunqunywa kokunikezwa kwe-depolarization we myocardium ventricular, esizibonakalisa ukushintsha kwezinkathi QRS eziyinkimbinkimbi. Lokhu kuguqulwa ukunciphisa R-wave kanye ushona we Q. izinyo isilethikusebenza libhekene izinguquko amakhulu electrocardiogram. Kubonisa khona esishintshashintshayo ezintathu esivimba amanzi - central ingxenye necrosis, ukulimala zone ezizungezile necrosis futhi ischemia esishintshashintshayo elitholakala emhlabeni endaweni ezilimele.

Itulo izicubu okushintshiwe necrotic isilethikusebenza lisibekele lonke ukushuba imisipha yenhliziyo udonga. Lokhu kubizwa ngokuthi i transmural esivimba amanzi. Uma necrosis ingaphansi endocardium - subendocardial ngaphansi epicardium - subepicardial, in the ukushuba imisipha yenhliziyo - intramural.

I ECG, ngokuzimela amafomu basemtholampilo esivimba amanzi, waphawula amaphethini isithombe, okuyinto kunqunywa kwasendaweni ukujula, ukusatshalaliswa nokubhujiswa imisipha yenhliziyo inqubo isinyathelo. ECG izimpawu esivimba amanzi infarction iyashiyana ngesikhathi nesigaba lesi sifo.

Ejwayelekile isilethikusebenza uhlukaniswe izigaba ezine: acute, acute, subacute, futhi isinyathelo nezibazi.

ECG isilethikusebenza esigabeni oyingozi

Izifo iqala nge-esiteji okukhulu isilethikusebenza. Lesi isikhathi kusuka ukubukeka abukhali ischemia esivimba amanzi ngaphambi kumiswa izimpawu necrosis. I ECG, kulesi sigaba libhekene ukubukeka wavusa ingxenye arcuate ST, okuyinto okuhlanganisiwe ngakolunye uhlangothi nge R ngezinyo, kuyilapho omunye - nge izinyo kwakhiwa T. Ngakho okwesikhathi arc ejwayelekile Pardee isilethikusebenza noma uphawu "emuva cat".

ECG isilethikusebenza esigabeni oyingozi

Esigabeni okukhulu necrosis esivimba amanzi ingxenye ekugcineni kwakhiwa futhi ithuthukisa miomalyatsiya (ukuthambisa infarction modified). Kumiswa ECG is sokugembula izinyo Q. Yena liya ebanzi futhi ijulile, okubonisa ukuthuthukiswa necrosis. Kanyekanye ukubukeka amazinyo iqala ukunqabela ST ingxenye ukuthi ubonisa indawo umonakalo ukunciphisa. Ngesikhathi esifanayo ke uqala ukwakha abukhali negative prong T.

ECG isilethikusebenza esigabeni subacute

Esigabeni subacute igcwaliswe izinqubo sokuqala inhlangano sesibazi. Isici esiyinhloko salesi sigaba, lo ECG kwehla kancane kancane ST ingxenye kanye nentaba yokugcina ekwakhekeni zwí ziyalingana ezicijile, okuthiwa izinyo yenhliziyo E. Barb Q ozuza ezakheke ngalesi sikhathi, okuyinto uhlala ingashintshiwe eminyakeni futhi okuhlalayo kube ukuphila.

ECG isilethikusebenza isibanda ngesinyathelo

Yesibazi esiteji, uphawu sesibazi. Isici nobuntu kulesi sigaba kuyinto ST ingxenye indawo emgqeni isoelectric. On esivimba amanzi kubonisa normal izinyo Q futhi stably negative prong T. Ngokuhamba kwesikhathi, ukubaluleka kwengosi kuba negative T-wave kungancipha, kungase kuvele ngisho omuhle izinyo T.

Lapho encane ebalulekile isilethikusebenza ECG izinguquko anqunyelwe okuncane offset kusukela nentaba ST ingxenye phezulu noma phansi, kuye ngokuthi indawo infarct, ne-T wave kombhala

isilethikusebenza eba ikakhulukazi i-ventricle engakwesobunxele. Kwasendaweni esivimba amanzi necrosis kwemizi kufakazelwa ukubukeka electrocardiographic izimpawu infarction ku imikhondo abafanele.