心肌梗死英文

1、Contents Definition Definition Definition Prevalence Mortality The mortality is 50% in 24 hours. Cause Coronary atherosclerosis Formation of thrombus Obstruction of blood flow Muscle death in cardiac muscle Plaque rupturePlaque rupture adventitia lipid core Cholesterol nuclear thrombosis Ruptured pl

2、aques Risk factors Inducing factors Symptoms Prodromal symptoms Pain of infarction Associated symptoms Painless infarction sudden death and Early arrhythmias Signs Signs Signs , Signs Signs Auxiliary examinations Electrocadiogram Q wave development T wave inversion Location Inferior wall aVF Anterio

3、r wall V16 Anteroseptal wall V1-3 Apical or lateral wall V46 Posterior wall-V7-9 Right-sided -V4R-V5R Laboratory findings Marker Time to appearance Duration of elevation 6hr12hrSpecificity Troponin I 2-6hr 5-10d75%90%-100%98% Troponin T2-6hr 5-14d80%95%-100%95% CK-MB3-6hr 2-4d65%95%95% myoglobin1-2h

4、r 1d85%90%80% Echocardiography Bedside assessment of left ventricular global and regional function . Diagnosing postinfarction ,mitral regurgitation or ventricular septal defect . WHO Definition Of MI Typical symptoms of chest pain 30 minutes Characteristic rise and fall of serum enzyme levels Typic

5、al ECG changes with development of ST elevation or Q waves Diagnosis Chest pain History 、examination and ECG Acute coronary syndrome （ACS） ST segment elevation Non-ST segment elevation NSTEMIUA No TnI(TnT) STEMI TnI(TnT)TnI(TnT) The differential diagnosis Complications Therapy Prevention Definition Definition Mortality The mortality is 50% in 24 hours. Painless infarction Signs WHO Definition Of MI Typical symptoms of chest pain 30 minutes Characteristic rise and fall of serum