1. Causes:

Myocardium is deprived of blood supply and develops necrosis.

2. Triggering Factors:

Strenuous Exercise	Exhaustion	Emotional Stress

However most myocardial infarctions happen when patients are at rest or having light activities

 

3. Symptoms I. Persistent chest pain, not relieved by rest or nitroglycerin tablets. II. Pain nature differs with individuals' severe pressure, crushing, compression, heaviness, radiating to shoulders, arms (esp. the left), neck, jaw and back. i. Patients who had angina should go to emergency room when chest pain cannot be relieved within 10 minutes after taking three tablets of nitroglycerin. ii. Patients who did not have heart disease should attend for emergency room when chest pain lasts more than 2 minutes.

4. Diagnosis: I. Case history II. Electrocardiogram (ECG) III. Blood test

5. Treatment:

I.	Thrombolytic therapy
II.	Relief of pain
III.	Management of complications
	e.g.: Arrhythmia, Heart Failure