AMI with the symptoms of the infarct size, location and the original heart function and severity of the situation different. A pain: the pain is the first symptom, pain location and the nature of the radiation and angina similar, but more severe pain lasting more, up to a few hours to several days, rest and mouth with nitroglycerin invalid. 2, gastrointestinal symptoms: can be accompanied by nausea, vomiting, abdominal pain, flatulence and gut. 3, systemic symptoms: fever can, tachycardia, high blood leukocytes by ESR and fast. The temperature generally around 38, rarely over 39, lasted about a week about. 4, arrhythmia: a common premature ventricular beats, ventricular tachycardia, atrioventricular block. Conscious patients palpitations, fatigue, dizziness, severe cases can cause syncope. 5, hypotension and shock: Almost all patients have different levels of blood pressure dropped, the original hypertension, the blood pressure can be reduced to normal, but this does not shock. The performance of shock: blood pressure (SBP) less than 10,64 moderate, and there were irritability, was pale skin Humidicool, fast and small veins, which sweat, urine output reduction, he was unresponsive and even coma. 6, heart failure: about 1 / 3, for the performance of dyspnea, cough, purple tongs, and irritable.
