![Dab tsi yog qhov zoo tshaj qhov sib txawv ntawm axis? Dab tsi yog qhov zoo tshaj qhov sib txawv ntawm axis?](https://i.answers-medical.com/preview/medical-health/13923573-what-is-right-superior-axis-deviation-j.webp)
Video: Dab tsi yog qhov zoo tshaj qhov sib txawv ntawm axis?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
QRS Cov axis sib txawv ntawm +90 ° txog +180 ° yog suav tias yog txoj cai sib txawv . Nws qhia tau hais tias lub fascicular block, ib sab myocardial infarction, txoj cai ventricular hypertrophy, pre-excitation syndromes, ventricular tachycardia, thiab ventricular ectopy yog nquag txoj cai sib txawv [3].
Tsis tas li, txoj cai sib txawv ntawm txoj cai sib txawv txhais li cas?
RAD tsis tuaj ntawm ECGs ua ntej: Thaum twg txoj cai sib txawv yog qhov kev tshawb pom tshiab, nws tuaj yeem yog vim mob hnyav ntawm lub ntsws, mob ntsws hauv lub ntsws, lub siab tshiab tom ntej MI (Qr qauv) lossis yooj yim tachycardia. Nws tuaj yeem yog kev tshawb pom niaj hnub hauv cov neeg mob uas muaj kab mob ntsws thiab RVH lossis hauv cov neeg mob nrog sab laug tom qab hemiblock.
Ntxiv mus, dab tsi yog qhov sib txawv ntawm axis hauv ECG? Hauv electrocardiography, sab laug axis sib txawv (LAD) yog qhov xwm txheej nyob ntawm qhov nruab nrab hluav taws xob axis ntawm txoj hlab ntsws ntawm lub plawv nyob hauv lub dav hlau pem hauv ntej kev taw qhia ntawm −30 ° thiab −90 °. Qhov no tau pom los ntawm QRS txoj hauv kev zoo hauv cov hlau lead I thiab tsis zoo hauv kev coj aVF thiab II.
Hauv qhov no, puas yog txoj cai sib txawv ntawm ib txwm?
Yog cov hluav taws xob axis ntog nruab nrab ntawm qhov tseem ceeb ntawm -30 ° txog +90 ° qhov no tau txiav txim siab li qub . Yog cov hluav taws xob axis yog nruab nrab ntawm -30 ° txog -90 ° qhov no suav tias yog sab laug axis sib txawv . Yog cov hluav taws xob axis yog nruab nrab ntawm +90 ° txog +180 ° qhov no tau txiav txim siab txoj cai sib txawv (RAWS).
Txoj cai nkag mus sib txawv yog dab tsi?
Txoj cai sib txawv tshwm sim thaum QRS axis yog hloov ntawm 90 thiab 180 degrees. Muaj ntau yam tuaj yeem ua rau txoj cai sib txawv uas suav nrog kab mob ntsws, txoj cai mob plawv ob sab, txoj cai bundle ceg thaiv, thiab txoj cai ventricular hypertrophy.
Pom zoo:
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