Kev ntim cov ceg thaiv zoo li cas ntawm ECG?

Video: Kev ntim cov ceg thaiv zoo li cas ntawm ECG?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Cov ECG yuav qhia lub davhlau ya nyob twg R nthwv dej hauv lead V1 thiab slurred S wave hauv lead I. Sab laug bundle ceg thaiv nthuav dav tag nrho QRS, thiab feem ntau hloov lub plawv txoj kab hluav taws xob mus rau sab laug. Cov ECG yuav qhia QS lossis rS txoj hauv cov hlau lead V1 thiab monophasic R yoj hauv cov hlau lead I.

Ua qhov no hauv kev txiav txim siab, koj yuav txiav txim siab li cas yog tias pawg ceg thaiv yog ECG?

Ib txoj hauv kev yooj yim los txheeb xyuas sab laug pawg ceg hauv ib ECG nrog kev nthuav dav QRS nyuaj (> 120 ms) yuav yog saib cov hlau lead V1. Yog tias QRS txoj kab ke tau nthuav dav thiab nqes mus rau hauv cov hlau lead V1, sab laug bundle ceg thaiv yog tam sim no.

Kuj Paub, koj paub li cas yog tias koj muaj kab laug sab ceg thaiv? Cov txheej txheem los tshuaj xyuas kab laug sab ntu ntu thaiv ntawm electrocardiogram:

Lub plawv dhia yuav tsum yog supraventricular hauv keeb kwm.
Lub sijhawm QRS yuav tsum yog ≥ 120 ms.
Yuav tsum muaj QS lossis rS txoj hauv cov hlau lead V1.
Yuav tsum muaj qhov thais ('M'-shaped) R yoj hauv cov hlau lead V6.

Thiaj li, LBBB zoo li cas ntawm ECG?

Ntxiv rau QRS ncua sijhawm ntev, LBBB yog tus yam ntxwv los ntawm kev sib sib zog nqus thiab dav S-nthwv dej hauv V1 thiab V2 thiab qhov dav clumsy R-nthwv dej hauv V5 thiab V6. Kev hloov pauv ST-T ib txwm tshwm sim thaum muaj LBBB . Cov hauv qab no ECG cov txheej txheem yog nquag siv los kuaj mob LBBB : QRS ntev ≧ 0, 12 vib nas this.

Koj txheeb xyuas LBBB thiab Rbbb li cas?

Thaum koj muaj txheeb xyuas tias koj li QRS yog dav mus coj V1. Yog tias "lub davhlau ya nyob twg quab yuam" ntawm QRS yog siab dua lub hauv paus (loj R nthwv dej) koj muaj RBBB . Yog tias "lub davhlau ya nyob twg quab yuam" ntawm QRS qis dua lub hauv paus (loj S yoj) koj muaj LBBB.

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