Showing posts with label Heart Attack. Show all posts
Showing posts with label Heart Attack. Show all posts

HEART ATTACK SYMPTOMS

About 2 of 3 people who suffered heart attacks, a few days before the attack chest pain is intermittent, shortness of breath or fatigue.
Chest pain more often arise even after a mild physical activity. Unstable angina like this could end up being a heart attack.

At mid-chest pain radiating to the back, jaw or left arm, or more rarely spreads to the right arm.
Pain may occur in those places without chest pain at all.

Pain in heart attacks is similar to angina pain but more intense and longer, not relieved by rest or administration nitroglliserin.
Sometimes the pain is felt in the abdomen and misinterpreted as one meal, especially since after patients burp a little pain diminished or disappeared for a while.

Other symptoms are feeling like going to faint and palpitations.
Abnormal heart rhythms (arrhythmias) can affect the heart's pumping ability or may lead to cardiac arrest (heart stops pumping effectively), resulting in loss of consciousness or death.

During the attack, the patient may feel restless, sweaty and anxious and could feel his death will come soon.
Lips, hands and legs look bluish.
Elderly patients could be disoriented (dazed).

As many as 1 in 5 people who suffered heart attacks, have only mild symptoms or no symptoms at all
Heart attack like this could only be identified from routine ECG examination some time later

Heart Attack - myocardial infarction

Heart attack (myocardial infarction), is a state where a sudden restriction or termination of blood flow to the heart, which causes the heart muscle (myocardium) dies from lack of oxygen.

Myocardial infarction

CAUSE

A heart attack usually occurs when a blockage in a coronary artery results in limited or cut off blood flow to a part of the heart.
If the interruption or reduction in blood flow lasted more than a few minutes, then the heart tissue will die.

Cardiac pumping ability after a heart attack is directly related to the extent and location of tissue damage (infarct).
If more than half of cardiac tissue is damaged, the heart usually can not function and the possibility of death. Even though the damage was not extensive, the heart can not pump properly, resulting in heart failure or shock.

Damaged heart can be enlarged, and partly an attempt to compensate for cardiac pumping ability is declining (due to greater heart will beat more powerful).
The enlarged heart is also a picture of the damage to heart muscle itself. Enlargement of the heart after a heart attack provides a poorer prognosis.

Other causes of heart attack are:

- A clot from the heart itself.
Sometimes a clot (embolus) is formed inside the heart, then broke and stuck in the coronary arteries.

- Seizures in the coronary arteries that causes cessation of blood flow.
Seizures can be caused by drugs (like cocaine) or by smoking, but sometimes the cause is unknown.
 
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