Video: Npaum li cas atrial kick ua rau lub plawv dhia tawm?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Atrial ncaws tshwm sim raws li qhov atria cov cog lus ua ntej ventricular contraction. Atrial kick pab txhawb 15-35% rau qhov ntim ntawm cov ntshav hauv lub plawv. Qhov ntim ntxiv no ua rau nce ntxiv cardiac tso zis los ntawm a zoo sib xws 15-35%.
Kuj paub, ntau npaum li cas atrial ncaws nce cov ntshav ntim?
Ua haujlwm atrial contraction rog ntxiv ntim ntawm ntshav nyob rau hauv lub ventricles ( ntau zaus hu ua " atrial kev "). Ua atrial ncaws pab txhawb a tseem ceeb ntim ntawm ntshav mus rau ventricular preload (kwv yees li 20%).
Qhov thib ob, puas yog atrial fibrillation ua rau lub plawv poob qis? Atrial fibrillation (AF) tuaj yeem ua rau poob rau hauv cardiac tso zis uas feem ntau yog qhov tseem ceeb hauv kev kho mob. Qhov yuav tshwm sim muaj xws li poob ntshav siab, txo muaj peev xwm ua haujlwm qoj ib ce, thiab mob ntsws ntsws, txhua yam uas ua rau pom lub plawv tsis ua haujlwm (HF).
Tsis tas li, dab tsi yog atrial kick?
Atrial ncaws yog txhais raws li lub zog tsim los ntawm atrial contraction ua ntej lub ventricular systole los yog thaum kawg ntawm ventricular diastole. Cov tub ntxhais hluas noj qab haus huv feem ntau tsis nyob ntawm qhov atrial kev , raws li 80% ntawm cov ntshav ntws tsis nkag mus rau hauv lub qhov ncauj thaum lub sijhawm sau nrawm.
Dab tsi ua rau poob ntawm atrial kick?
Ntshav siab, kab mob plawv ischemic, thiab kab mob rheumatic valvular yog qhov tshwm sim ua rau ntawm atrial fibrillation. Stroke cov zis tawm los ntawm 20-30% hauv cov tib neeg ib txwm nrog poob ntawm atrial kick ; qhov kev poob qis hauv cov hlab ntsha tawg yog qhov loj dua hauv cov neeg mob plawv.
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