The predictive value improved progressively with the increasing ST depression and was most reliable in a select group of patients with normal electrocardiographic baseline who were not receiving digitalis (73% with ST depression 1 mm to 100% with ST depression 4 mm). The incidence of 2 and 3 ...
正常变异的高T波具有一些特点可供鉴别时参考:T波增高多见于胸导联,可伴有R波增高,ST 段凹面抬高(J点上抬),V6导联ST/T1.0 mm depression Downsloping: Very predictiveHorizontal: Very predictiveUpsloping: Predictive if angina present2.0 mm depressionUsually indicative of ischemia2、T波对称高耸波对称高耸心...
Stephen W. S.Ischemic ST-Segment Depression Maximal in V1–V4 (Versus V5–V6) of Any Amplitude Is Specific for Occlusion Myocardial Infarction (Versus Nonocclusive Ischemia). J Am Heart Assoc. 2021;10:e022866.
继发性ST-T改变 因心室除极异常继而造成心室复极异常所引起的心电图ST-T改变 主要见于左室肥厚、室性异位激动、室内传导阻滞及预激综合征等 * (一)原发性ST-T改变 * 心内膜下心肌缺血 ——内膜面复极延迟 1、ST段压低 1.0 mm depression Downsloping: Very predictive Horizontal: Very predictive Upsloping: ...
心电图ST-T改变课件.ppt,第三部分 原发性ST-T改变 心内膜下心肌缺血 ——内膜面复极延迟 ST段压低 1.0 mm depression Downsloping: Very predictive Horizontal: Very predictive Upsloping: Predictive if angina present 2.0 mm depression Usually indicative of ischemi
心电图ST-T改变复习课程 心电图ST-T改变 mV+20 0 12 0 3 动作电位 绝对不应期 4 -90 有效不应期 相对不应期超常期 心电图 几个概念 •极化，过度极化，不全极化•除极•复极 心肌静息膜电位的形成 -80～95mv ++ + + + + + + + + ++ ...
ST segment depression in each of the inferior leads was significantly greater in group A than in group B. The incidence of ST segment depression > or = 1 mm in each of the inferior leads (II; 81% vs 27%, III; 85% vs 54%, aVF; 87% vs 47%, P or = 1 mm in all of the ...
继发性ST-T改变 因心室除极异常继而造成心室复极异常所引起的心电图ST-T改变 主要见于左室肥厚、室性异位激动、室内传导阻滞及预激综合征等 心内膜下心肌缺血 ——内膜面复极延迟 1、ST段压低 1.0 mm depression Downsloping: Very predictive Horizontal: Very predictive Upsloping: Predictive if angina present ...
1.ST段压低 >1.0mmdepression Downsloping:Verypredictive Horizontal:Verypredictive Upsloping:Predictiveifanginapresent >2.0mmdepression Usuallyindicativeofischemia 2.T波对称高耸 27 T 28 / 1.ST段抬高——平台期损伤电流朝向 心外膜 2.T对称倒置、低平或双向——反向 ...
ST段压低1.0mmdepressionDownsloping:VerypredictiveHorizontal:VerypredictiveUpsloping:Predictiveifanginapresent2.0mmdepressionUsuallyindicativeofischemiaT波对称高耸,27,心内膜下心肌缺血时T波改变,28,心外膜下/透壁心肌缺血,ST段抬高平台期损伤电流朝向心外膜T对称倒置、低平或双向反向复极,29,心外膜下心肌缺血T波改变,...