ECG izinga izinkomba eziyisisekelo

Electrocardiography kuyindlela ebalulekile non-koda ekuxilongeni umsebenzi ukusebenza inhliziyo. Kusekelwe yokubhaliswa nekhono kagesi ekunciphiseni infarction, ezikhonjiswayo esikrinini noma iphepha.

Ucwaningo luveza umfutho ophakeme wegazi, ubuhlungu besifuba kanye iphika, ngemva kweminyaka engu-40, ukubhema cholesterol aphezulu emzimbeni, ngaphambi kokuthi kube ukusebenza, ngesikhathi sokukhulelwa futhi emva kokutheleleka.

Ukuze afeze electrocardiogram isetshenziswa idivayisi ekhethekile - electrocardiograph ne electrode abafanele.

ECG ngokuvamile libhekene izakhi elandelayo:

1. namazinyo zazo ebekwe izinhlamvu P, Q, R, S, T, U.

Kufanele kuqashelwe ukuthi P izinyo ubonisa indlela excitation we Atria. Ngokuvamile, ubude bayo - kusuka 0.06-0.1 amplitude - 0.05-2.5 mm.

Lapho ECG izinga kunqunywa ebhekisela izibalo ukuthi ububanzi isikwele okungenani ephepheni, lapho nekhono kagesi wenhliziyo elotshiwe, imizuzwana 0.04, futhi ukuphakama oluhambisana voltage ka 0.1 millivolts.

ECG Izinga nezinye amazinyo:

• Q izinyo obuphelele kufanele kube <0.03 nge Voltage futhi - <¼ wave amplitude kusuka R;

• R izinyo kufanele kube 0.03-0.04 futhi kuze kube u 20 mm (V5 futhi V6 zingandiswa kuze kufinyelele 26);

• S - isikhathi ejwayelekile kwegagasi 0.03 s, voltage - <8 phambili mina II, V1 kungaba <25;

• ECG: izinyo evamile T-0,16 isekhondi kanye amplitude - <1/2 we wave R;

• U - kuyinsakavukela - 0,06-16 nge ukuphakama wave kumele kube 2-3 mm.

2. izikhathi: PQ (ishayela oluhambisana ukudlula phakathi ATRIUM futhi ventricle), qt, futhi RR, ST. isikhawu Kugcine nge T wave ephawula repolarization, ebanjwa ku ventricles wenhliziyo;

3. kwakunomfana futhi esikalini QRST, okubonisa systole kagesi le ventricles.

Ukubhaliswa amaza kagesi e myocardium ka ezintathu esezingeni esetshenziswa, kanye ezintathu lukhuni futhi eziyisithupha ECG esifubeni kuholela. Kuyinsakavukela imiphumela incike ukuthunjwa lapho ubude kanye amplitude we amagagasi.

Kufanele kuqashelwe ukuthi ECG yisu liyigugu kakhulu zokuxilonga. Izinga ECG lwazo zonke izinto kubonisa ukuhamba futhi efanele imvamisa Kufinyeta kwenhliziyo, kanye evamile ukusebenza umshayeli isigqi. Ngaphansi izinguquko ezithile kungabonwa khona arrhythmias, inhliziyo conduction thuthuva noma ukwephulwa perfusion esivimba amanzi futhi ischemia.

ECG izinga amplitude Kubalulekile uphethwe yini, njengoba kuyinto izithelo zawo kungenzeka ukukhuluma mayelana hypertrophy we izigaba ezifanele inhliziyo, okuyinto eba izifo ezithize inhliziyo nomfutho wegazi ophezulu kanye.

Mangisho ukuthi ECG ayibizi futhi ulwazi indlela zokuxilonga, kodwa ethile yayo esemqoka - isikhathi esifushane yokubhaliswa amaza kagesi, okuyinto anikezwa ngu imisipha yenhliziyo. Akunakwenzeka ukubona thuthuva gqwa zenhliziyo. Ukuthola kwezinso ezifana zokuqapha electrocardiography isetshenziswa, esiqhutshwa amahora 48 futhi inikeza isithombe more ephelele ukusebenza myocardium.

Ngaphezu kwalokho, i- uphethwe umehluko zezinkinga organic futhi ukusebenza enhliziyweni angase kwenziwe ECG umthwalo orthostatic noma hyperventilation, kanye ngesikhathi nokuphathwa ukwakhiwa ahlukene (imithi amasampula).