CLINICAL ANALYSIS OF EARLY POSTINFARCTION ISCHEMIA BY AMBULATORY ELECTROCARDIOGRAPHIC MONITORINGCLINICAL ANALYSIS OF EARLY POSTINFARCTION ISCHEMIA BY AMBULATORY ELECTROCARDIOGRAPHIC MONITORING
摘要(Abstract)：
<正> Objective:To study clinical significance of early postinfarctionischemia by ambulatory electrocardiographic monitoring(AEM).Methods:There were 64 petients with acute myocardial infarction(AMI).43 males,21 females,with a mean age of 61 years.Among of them,31 were anteriormyocardial infarction(MI),26 were inferior HI,7 were HI with botbanterior and inferior,All patlents were contintinueouslyonitored for5-12 days,The judging criteria were①ST segment depressed≥0.1andlasted for≥1 minute②The time interval between two ischemia attacks>1 minute.Results:Of all patients,46 showed postinfarction ischemia(PII)(72%),17 of them with symptom of postinfarction angina(PIA)(37%),29 of them without any symptom(63%).The incidence of PII within a weekafter infarction is 83%.These patients'incidence of arrhythimia,heartfallure,and cardiogenic shock are 90.24%,68.29%,and 19.51% respective-ly,which are much higher than that of those without PII attack.Discussion:The occurrence of PIA indicates relapsing myocardialischemia,and coronary angiography has confirmed a great degree ofstenosis with coronary artery.The exist of PII is one of theIndependent dan factors of bad prognosis of coronary heartdisease.It has been confirmed by other articles that ischemis mayexist whether PIA occurs or not,and the ircidence of ischemia withoutsymptom is higher,having the same result with this one.The depressionof ST segment can sensltively show ischemia So we must pay attentionto the change of ST segment in early stage of AMI.By AEM,we can findthat PII has different appearances and incidence with differentinfarction position and infarction range,and its occurrence has timedistribution,part of them are related to the activities of patients.Ischemia occurs more frequently in patients with anterior HI thanthose with inferior MI.The more extensive infarction,the higherincidence of ischemia,and the incidence of all kinds of complicationsand the mortality rate are higher in those with PII than those withoutit.Weiner D.A etc.also had similar reports.So we must strengthen themonitoring to the patients with PII to lay out individual cure planaccording to different attack characteristics,when necessary,we shouldtake coronary angiography to make PTCA or CABG.
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