Myocardial infarction is a heart attack, you know what it's a precursor to heart attack? What are the symptoms indicating myocardial infarction find on How about you?
Symptoms of myocardial infarction
(A) pain
The performance of the most prominent symptoms of this disorder. Attack have no apparent cause, and often attack in a quiet, angina pain location and nature of the same, but the pain is more severe, long duration, there are up to several hours or even days, ineffective nitroglycerin. Patients often irritability, sweating, fear, or a sense of impending doom. Small number of patients no pain, namely the onset of symptoms of shock or acute pulmonary edema.
Myocardial infarction pain symptoms
(B) shock
20% of patients may be associated with shock, more than a few hours to 1 week after the onset occurred. Patient pale, irritability, clammy skin, weak pulse, blood pressure 10.7KDa (80mmHg), and even fainting. If the patient only reduce blood pressure and no other symptoms are known as hypotension. The main shock factors are: due to myocardial suffered serious damage, left ventricular ejection amount drastically reduced (cardiogenic shock); secondly, leading to severe chest pain reflex peripheral vasodilation; In addition, vomiting, sweating, inadequate intake due to hypovolemia factors.
(C) Arrhythmia
Approximately 75-95% of patients with cardiac arrhythmias, more common in the onset of 1-2 weeks, and to 24 hours for the most common arrhythmia to ventricular arrhythmias most, such as premature ventricular contractions, may be part of a patient ventricular tachycardia or ventricular fibrillation and sudden death. Atrioventricular block, bundle branch block is not uncommon, supraventricular arrhythmias occur less. Anterior myocardial infarction prone bundle branch block, inferior wall myocardial infarction prone atrioventricular block, supraventricular arrhythmias common in atrial infarction.
(Iv) failure
After the infarct was significantly reduced cardiac contractility and uncoordinated, so in the first few days of the onset of acute left ventricular failure-prone, difficulty in breathing, coughing, irritability, and other symptoms can not be supine. In severe cases, acute pulmonary edema, cyanosis and may have a large number of slightly pink foamy sputum, the latter may have a right heart failure, right ventricular myocardial infarction can occur at the start of right heart failure.
Myocardial infarction, heart failure symptoms
(V) systemic symptoms
Fever, tachycardia, leukocytosis and erythrocyte sedimentation faster and so on. This is mainly due to tissue necrosis caused by absorption, generally appear 1-2 days after infarction, body temperature is generally around 38 ℃, rarely exceeds 39 ℃, it lasted about a week or so.
