<p class="first" id="d2037030e113">Myocardial infarction (MI) is a term used for an
event of heart attack which is due
to formation of plaques in the interior walls of the arteries resulting in reduced
blood flow to the heart and injuring heart muscles because of lack of oxygen supply.
The symptoms of MI include chest pain, which travels from left arm to neck, shortness
of breath, sweating, nausea, vomiting, abnormal heart beating, anxiety, fatigue, weakness,
stress, depression, and other factors. The immediate treatment of MI include, taking
aspirin, which prevents blood from clotting, and nitro-glycerin to treat chest pain
and oxygen. The heart attack can be prevented by taking an earlier action to lower
those risks by controlling diet, fat, cholesterol, salt, smoking, nicotine, alcohol,
drugs, monitoring of blood pressure every week, doing exercise every day, and loosing
body weight. The treatment of MI includes, aspirin tablets, and to dissolve arterial
blockage injection of thrombolytic or clot dissolving drugs such as tissue plasminogen
activator, streptokinase or urokinase in blood within 3 h of the onset of a heart
attack. The painkillers such as morphine or meperidine can be administered to relieve
pain. Nitroglycerin and antihypertensive drugs such as beta-blockers, ACE inhibitors
or calcium channel blockers may also be used to lower blood pressure and to improve
the oxygen demand of heart. The ECG, coronary angiography and X-ray of heart and blood
vessels can be performed to observe the narrowing of coronary arteries. In this article
the causes, symptoms and treatments of MI are described.
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