Clinical features of acute myocardial infarction

The typical clinical manifestations are: (1) When the pain of acute myocardial infarction occurs, the symptoms is the first sudden retrosternal pain or heart area before, have no obvious incentive extent heavier, longer duration, more in more than half an hour, up to a few hours or a few days, with the rest or nitroglycerin, not eased. Patients often accompanied irritability, sweating, fear or dying flu. (2) pain severe gastrointestinal symptoms when accompanied frequent nausea, vomiting and abdominal pain, intestinal flatulence also see more severe may occur hiccup. (3) systemic symptoms generally occur in pain after 24 to 48 hours fever, tachycardia, increased leukocyte and erythrocyte sedimentation rate by fast, the body temperature usually in the 38 ℃, rarely more than 39 ° C, lasted about a week or so. (4) arrhythmia in the incidence of 1 ~ 2 weeks, especially within 24 hours, 75% to 95% of patients develop a variety of arrhythmia, ventricular arrhythmias up to see, atrioventricular block and bundle branch block also see more. Can be accompanied by fatigue, dizziness, the symptoms of syncope. (5) hypotension, and shock common pain blood pressure dropped, but not necessarily a shock. If pain relief and systolic blood pressure remained below 10.6 7kPa (80mmHg), and irritability and looking pale, skin Humidicool, veins thin and fast and sweated profusely on our journey,(less than 20 ml per hour), unresponsive, and even syncope as compared with shock performance. More onset occurred after a few hours to one week within. (6) primarily for acute left ventricular heart failure failure, the incidence is about 32 ~ 48%, expressed as dyspnea, cough, cyanosis, irritability, weight, pulmonary edema can occur, pink bubble cough sputum and so on, then there will be the right heart failure performance. The right ventricular infarction, which is the beginning of right heart failure performance, with blood pressure dropped.