Aortic atheromas (aortic atheromatous plaques) yog txhais los ntawm tsis xwm yeem thickening ntawm intima ≥2 mm, thiab cov quav hniav nyuaj txhais tau tias yog cov kab mob atheroma ≥4 hli nrog lossis yam tsis muaj qhov txuas txuas nrog lub xov tooj.
atheroma ua los ntawm dab tsi?
Cov atheroma plaque yog tsim los ntawm cov hlwb, feem ntau macrophages thiab lymphocytes, extracellular matrix (interstitial collagen hom I thiab II thiab proteoglycans), cov leeg nqaij du, thiab lipid core.
Aortic arch yog dab tsi?
Lub aortic arch yog sab saum toj ntawm cov hlab ntsha loj nqa ntshav tawm ntawm lub siab. Aortic arch syndrome yog hais txog ib pawg ntawm cov cim qhia thiab cov tsos mob cuam tshuam nrog cov teeb meem hauv cov hlab ntsha uas tawm ntawm lub aortic arch.
Cov theem ntawm atherosclerosis yog dab tsi?
Atherogenesis tuaj yeem muab faib ua tsib kauj ruam tseem ceeb, uas yog 1) endothelial dysfunction, 2) tsim cov lipid txheej lossis fatty streak nyob rau hauv lub intima, 3) migration ntawm leukocytes thiab Cov leeg nqaij du rau hauv cov hlab ntsha phab ntsa, 4) ua npuas ncauj cell tsim thiab 5) degradation ntawm extracellular matrix.
Ntau npaum li cas yog atheromatous aorta?
Prevalence of atheromatous aorta is 3.3% (68 tus neeg mob).
