Izinga ECG yeempawu esisiseko

Electrocardiography yindlela ebalulekileyo non-invasive ngenxa zokufumanis umsebenzi ukusebenza kwentliziyo. Oku kusekelwe ubhaliso nekhono zombane ekunciphiseni iqhosha, eboniswe kwikhusi okanye kwephepha.

Olu phando lubonisa lwegazi, iintlungu esifubeni kwakunye nokubamba-bamba umphefumlo, emva kweminyaka engama-40, ukutshaya kunye cholesterol aphezulu emzimbeni, phambi kokuba nawuphi na umsebenzi, ngethuba lokukhulelwa emva kokosuleleka.

Ukuze enze electrocardiogram kusetyenziswa isixhobo ezikhethekileyo - electrocardiograph ne electrode achaphazelekayo.

ECG ngokuqhelekileyo iphawuleka ezi zinto zilandelayo:

1. Amazinyo ezithi owonyulwe oonobumba P, Q, R, kunye S, T, Kaya

Kufuneka kuqatshelwe ukuba P izinyo ubonisa indlela excitation ye imithambo. Ngesiqhelo, ubude balo - ukususela 0.06-0.1 awo - 0.05-2.5 mm.

Xa Izinga ECG ligqitywe ngokubhekisele amanani ububanzi isikwere ubuncinane ephepheni, apho nekhono zombane yentliziyo zibhalwe, eyi 0.04, ukuphakama ekwafanekisa le lombane 0.1 millivolts.

rate ECG kwabanye amazinyo:

• ubude Q izinyo kufuneka <0.03 kunye Voltage kunye - <¼ wave awo evela R;

• R izinyo kufuneka 0.03-0.04 yaye ukuya kwi-20 mm (v5 kunye V6 angandiswa ukuya ku-26);

• S - Ubude bexesha eliqhelekileyo lwamaza egqitha 0.03 s, le ombane - <8 ngelothe I II, V1 inokuba <25;

• ECG: T-0,16 nezinyo yesiqhelo umzuzwana kunye namandla awo - <1/2 lencinibakazi R;

• U - norm - 0,06-16 kunye ukuphakama lencinibakazi kufuneka ube malunga 2-3 mm.

2. ekhefu: PQ (ukubetha elivumelana sicatshulwa phakathi intendelezo ventricle), QT, kunye RR, ST. Ithuba lokuphumla Last ne T wave luphawu repolarization, nto leyo ethatha indawo ventricles zentliziyo;

3. Le Isakhiwo yavavanywa QRST, ebonisa systole zombane ventricles.

Kuba ubhaliso ngamaza ombane kule myocardium of standard amathathu kusetyenziswa, kwakunye ezintathu ngontamo nesithandathu ECG esifubeni ikhokelela. Ummiselo kweziphumo ixhomekeke nokuxhwilwa apho ixesha kunye namandla awo kwamaza.

Kufuneka kuqatshelwe ukuba ECG kuyinto ubuchule lixabiseke kakhulu diagnostic. izinga ECG zonke izinto kubonisa ukufika nafanelekileyo rhoqo izishunqulelo zentliziyo, kwakunye eliqhelekileyo ukusebenza yomqhubi kwesingqisho. Phantsi utshintsho ezithile kubonakala ebusweni arrhythmias, ukuphazamiseka Uhanjiso senhliziyo okanye kwephulwa perfusion engabalulekanga kunye ischemia kunokwenzeka.

ECG rate awo kubalulekile ukuba uxilongo echanekileyo, ekubeni ungeniselo lwayo kunokwenzeka ukuba bathethe malunga hypertrophy kwamacandelo afanelekileyo zentliziyo, iphuhlise lwegazi kunye nezifo ezithile zentliziyo.

Ndimele ndithi ukuba ECG na indlela diagnostic efikelelekayo kwaye ulwazi, kodwa ethile yayo engundoqo - ixesha elifutshane ubhaliso ngamaza ombane, nto leyo zisasazwa imisipha intliziyo. Akukho lula ukubona ukuphazamiseka ngamaxesha kwentliziyo. Ukuze babone ezingaqhelekanga esweni electrocardiography iyasetyenziswa, ibanjwa iiyure ezingama-48 yaye inika umfanekiso opheleleyo ngakumbi nokusebenza myocardium.

Ukongezelela koko, ngokuba umahluko Uxilongo lwe ukuphazamiseka eziphilayo kwaye zisebenza entliziyweni ingaqhutywa ECG umthwalo intolerance okanye hyperventilation, kwakunye nangexesha ulawulo imixube ezahlukeneyo (amayeza iisampuli).