1. Litokelo tsa maoto
Ho kenyeletsoa le leoto le tloaelehileng le etellang pele I, II, le III le compression unipolar leoto le lebisang aVR, aVL, le aVF.
(1) Loto e tloaelehileng ea leoto: e tsejoang hape e le bipolar lead, e bontšang phapang e ka bang teng lipakeng tsa maoto le matsoho a mabeli.
(2) Letoto le nang le khatello ea maoto a unipolar: ho li-electrode tse peli, eleketrode e le 'ngoe feela e bonts'a bokhoni,' me bokhoni ba elektrode e 'ngoe bo lekana le zero.Ka nako ena, amplitude ea waveform e entsoeng e nyane, kahoo khatello e sebelisoa ho eketsa bokhoni bo lekantsoeng bakeng sa ho lemoha habonolo.
(3) Ha ho lateloa ECG tleliniking, ho na le mebala e 4 ea li-electrode tsa lead lead probe, 'me maemo a tsona a ho beoa ke: eleketrode e khubelu e letsohong la letsoho le ka holimo le letona, eleketrode e mosehla e letsohong la letsoho le ka holimo le letšehali. setho, 'me eleketrode e tala e ka leoto le leqaqailaneng la leoto le ka tlase le letšehali.Electrode e ntšo e fumaneha leqaqailaneng la leoto le ka tlase le letona.
2. Likarolo tsa sefuba
Ke moetapele oa unipolar, ho kenyelletsa le lead V1 ho ea V6.Nakong ea tlhahlobo, electrode e ntle e lokela ho behoa karolong e boletsoeng ea lebota la sefuba, 'me li-electrode tse 3 tsa letoto la leoto li lokela ho hokeloa ho eleketrode e mpe ka sehanyetsi sa 5 K ho theha terminal ea motlakase e bohareng.
Nakong ea tlhahlobo ea kamehla ea ECG, li-lead tsa 12 tsa ho ferekana kelellong, li-unipolar tse nang le khatello ea maoto le V1～V6 li ka finyella litlhoko.Haeba ho belaelloa dextrocardia, right ventricular hypertrophy, kapa myocardial infarction, lead V7, V8, V9, le V3R e lokela ho eketsoa.V7 e boemong ba V4 moleng o ka morao oa axillary;V8 e boemong ba V4 ka lehlakoreng le letšehali la scapular;V9 e ka lehlakoreng la mokokotlo oa le letšehali Line V4 e boemong;V3R e karolong e lumellanang ea V3 sefubeng se nepahetseng.
Bohlokoa ba ho beha leihlo
1. Sistimi ea 12-lead monitoring system e ka bonts'a liketsahalo tsa myocardial ischemia ka nako.70% ho isa ho 90% ea myocardial ischemia e fumanoa ka electrocardiogram, 'me ka tleliniki, hangata e se na matšoao.
2. Bakeng sa bakuli ba kotsing ea ho ba le myocardial ischemia, joalo ka angina e sa tsitsang le infarction ea myocardial, 12-lead ST-segment e tsoelang pele ea ECG e ka lemoha liketsahalo tse bohloko tsa myocardial ischemia, haholo-holo liketsahalo tsa asymptomatic myocardial ischemia, e leng kliniki Fana ka motheo o tšepahalang oa ho hlahlojoa ka nako. le kalafo.
3. Ho thata ho khetholla ka nepo pakeng tsa tachycardia ea ventricular le tachycardia ea supraventricular le intraventricular differential conduction ho sebelisa feela lead II.Moetapele o motle oa ho khetholla tse peli ka nepo ke V le MCL (leqhubu la P le QRS complex li na le morphology e hlakileng ka ho fetisisa).
4. Ha ho hlahlojoa morethetho o sa tloaelehang oa pelo, ho sebelisa liropo tse ngata ho nepahetse ho feta ho sebelisa loto e le 'ngoe.
5. Sistimi ea 12-lead monitoring system e nepahetse ebile e nakong ho tseba hore na mokuli o na le arrhythmia ho feta mokhoa o tloaelehileng oa ho lekola motho a le mong, hammoho le mofuta oa arrhythmia, lebelo la ho qala, nako ea ponahalo, nako le liphetoho pele le ka morao. phekolo ea lithethefatsi.
6. Tlhokomelo e tsoelang pele ea 12-lead ECG ke ea bohlokoa haholo bakeng sa ho khetholla mofuta oa arrhythmia, ho khetha mekhoa ea ho hlahloba le ho phekola, le ho ela hloko liphello tsa phekolo.
7. Mokhoa oa ho beha leihlo oa 12-lead e boetse e na le mefokolo ea eona lits'ebetsong tsa bongaka, 'me e ka ba le tšitiso.Ha boemo ba 'mele oa mokuli bo fetoha kapa li-electrode li sebelisoa ka nako e itseng, maqhubu a mangata a tšitiso a tla hlaha skrineng, e leng se tla ama kahlolo le tlhahlobo ea electrocardiogram.
Nako ea poso: Oct-12-2021