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ID:56983208
大小:3.78 MB
页数:80页
时间:2020-07-25
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1、(五)心肌缺血、损伤和梗死myocardialischemia,injuryandinfarction返回绝大多数心肌缺血、损伤和梗死系由冠状动脉粥样硬化所引起,除临床表现外,心电图的特征性改变及其演变规律是确定诊断和估计病情的主要依据。心肌缺血、损伤和梗死发生后,随着时间的推移在心电图上可先后出现相应的心电图改变。当一个区域的心肌发生缺血时,从中心到其边缘区域缺血的程度是不同的,也可在不同部位同时出现上述三种图形改变。(五)心肌缺血、损伤和梗死myocardialischemia,injuryandinfar
2、ction冠状循环coronarycirculation正常与异常冠状动脉造影normalandabnormalcoronaryarteryangiography心肌缺血myocardialischemia心肌损伤myocardialinjury心肌梗死myocardialinfarction冠状循环窦房结支右冠状动脉右室前支右房支右缘支左房支左旋动脉左冠状动脉前降支左缘支左室间隔支左室前支(前面观)coronarycirculationS-AnodeB.R.coronaryA.anteriorrightvent
3、ricularB.R.atrialB.R.marginateB.L.atrialB.L.circumflexA.L.deseendingB.ofL.coronaryA.L.marginateB.L.interventricularseptalB.anteriorL.ventricularB.(anterioraspect)冠状循环左旋支(后面观)房室结支左室后支室间隔支冠状窦右冠状动脉后室间支右室后支coronarycirculationL.circumflexB.A-V.nodeB.posteriorleftve
4、ntricularB.interventricularseptalB.sinuscoronaryR.coronaryA.posteriorinterventricularB.posteriorR.ventricularB.(posterioraspect)返回正常与异常冠状动脉造影normalandabnormalcoronaryarteryangiography返回右冠状动脉的分布rightcoronaryarterydistribution(LAOV)冠状动脉导管(coronarycatheter)右室支
5、(rightventricularbranch)房室结支(A-Vnodeartery)后降支(posteriordescendingartery)后室支(posteriorventricularartery)右冠状动脉的分布rightcoronaryarterydistribution(RAOV)冠状动脉导管(coronarycatheter)右室支(rightventricularbranch)后降支(posteriordescendingartery)左冠状动脉的分布leftcoronaryarterydi
6、stribution(LAOV)左冠状动脉主干(L.mainartery)左前降支(L.anteriordescendingA.)旋支(circumflexA.)斜角支(diagonalbranches)左缘支(obtusemerginalbranch)左冠状动脉的分布leftcoronaryarterydistribution(RAOV)左冠状动脉主干(L.mainartery)左前降支(L.anteriordescendingA.)间隔支(septalbranches)旋支(circumflexA.)左缘支(
7、obtusemerginalbranch)右冠状动脉狭窄rightcoronaryarterystenosis可引起左心室膈面、后间隔和右心室梗死,并可累及窦房结和房室结右冠状动脉病变rightcoronaryarterydisease(LAOV)冠状动脉导管(coronarycatheter)右冠状动脉完全狭窄(complexstenosisintheR.C.A.)后降支(posteriordescendingartery)右冠状动脉病变rightcoronaryarterydisease(RAOV)冠状
8、动脉导管(coronarycatheter)右冠状动脉完全狭窄(complexstenosisintheR.C.A.)右室支(rightventricularbranch)后降支(posteriordescendingartery)左冠状动脉主干狭窄leftmaincoronaryarterystenosis可引起左心室广泛心肌梗死左主冠状动脉病变lef
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