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Heart Attack

What are some signs of a heart attack?

Blood is required for the heart and all other organs and tissues in the body to work. When one of the arteries that supply blood to the heart gets blocked, it causes a heart attack, also identified as a myocardial infarction or MI. This article will address the pathophysiology of a heart attack, epidemiology, the vital signs and symptoms in history and physical examination, and differential diagnosis.

Heart attacks are often caused by coronary artery disease, a leading cause of mortality and disability in developed countries. Plaques of fatty deposits grow on the walls of the coronary arteries in this condition (atherosclerosis). When plaques develop within a coronary artery, the portion of the heart muscle supplied by that artery no longer receives adequate blood flow.

This lack of blood flow is referred to as “ischemia,” The longer the artery is blocked, the worse the heart attack and the greater the loss of cardiac muscle, referred to as “infarction.” A significant coronary artery spasm is a less common cause of heart attack. The spasm stops blood from flowing through the artery and can occur in coronary arteries that aren’t blocked by atherosclerosis.

It is necessary to emphasize that most cardiac attacks occur early in the morning. The potential causes could remain explained by the increase of sympathetic tone in the morning, which leads to a rise in blood pressure, heart rates, coronary tone, and contractility of the myocardial techniques as well as an increase in blood viscosity and platelet aggregability in the morning. Another factor might be elevated morning levels of serum cortisol and plasma catecholamines, which enhance myocardial demand.

Signs and Symptoms of Heart Attack


In the early stages of a patient’s presentation, the patient’s history is crucial in detecting a heart attack, and it may give the primary indicators that lead to a diagnosis. For example, patients with typical acute heart attack symptoms typically have chest pain. In addition, they may experience prodromal symptoms such as weariness, chest tightness, or malaise in the days immediately before the attack.

Chest pain

Chest pain is one of the most prevalent symptoms that send people to the hospital’s emergency department. However, chest pain can remain begun by various conditions, with cardiac abnormalities accounting for almost half of all cases. Substernal In general, chest discomfort caused by a heart attack or another type of cardiac disease can stay described or associated with one or more of the following:

  • Crushing or squeezing pain often radiates up to the neck, shoulder, and jaw and down the left arm
  • Pain that continues for more than a few minutes gets worse with activity,
  • Shortness of breath
  • Dizziness, weakness, or/and cold sweats

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