A myocardial infraction or a heart attack is permanent damage to the heart muscle. It occurs when the flow of oxygen-rich blood to heart muscle gets suddenly blocked by which the heart can’t get oxygen. Various symptoms include pain or discomfort in one or both the arms that spread to shoulders, upper back, neck or jaw, a general sense of anxiety, shortness of breath, stomach or abdominal pain, weakness and overwhelming fatigue, swelling of the ankles and lower legs, etc.
A heart attack is a medical emergency so should call the ambulance. If the causality is not allergic to aspirin and its easily available than give them a tablet ideally 300mg to slowly chew and swallow while waiting for the ambulance to arrive. The aspirin will help to reduce the risk of heart attack by thinning the blood. The two main treatments include: using medication to dissolve blood clots, surgery to restore blood to the heart.
Estimation of the true prevalence of CHD in the population is complex. In particular, it is estimated that about 15.4 million persons older than 20 years in the United States have ischemic heart disease. This figure corresponds to an overall prevalence of CHD among those older than 20 years of 6.4% (7.9% in men and 5.1% in women). For myocardial infarction, the prevalence rate was estimated to be 2.9% (4.2% in men and 2.1% in women). Although the prevalence of CHD increases with age in both men and women, another survey showed some variation in recent decades in the male:female prevalence ratio in middle-aged persons (35-54 years). The most recent data continue to show a strong male predominance in CHD in general and in myocardial infarction in particular in all age groups.