HEART ATTACK,HAEMORRAGE AND STROKE

HEART ATTACK MOCARDIAL INFARACTION

Blockage of blood vessel in the heart by an embolus (or by locally formed thrombus) causes necrosis or damage to portion of heart muscles, a condition known as a heart attack or technically myocardial infarction, Heart attack is due to disruptions of control system of the heart with accompanying arrhythmias, especially ventricular fibrillation.

We can avoid the above mentioned situations if we :

Avoid too much fatty food (especially rich in cholesterol) Maintain normal body weight.

Control blood pressure by regular walk and exercise

Do not smoke

STROKE

If the normal flow of blood is blocked by an embolus (or a locally formed thrombus), in a blood vessel in the brain, and causes necrosis, or death, of the surrounding neural tissue (owing to lack of O₂), the condition is called a stroke or cerebral infarction. The symptoms of the stroke vary depending on the part of the brain that has been damaged.

HAEMORRAGE

It is the discharge of blood from blood vessels. Especially important is the brain haemorrhage which results from bursting of any of the arteries supplying the brain. When the wall of the arteries becomes hard and loses its elasticity and higher blood pressures would result in brain haemorrhage. To avoid brain haemorrhage, the blood pressure must be controlled between normal limits.

In almost all the above mentioned problems, it is important to take following preventive measures :
in of less cholesterol in our food. Maintenance of normal blood pressure.

Do not become over weight.

Do not smoke.

Do regular exercise.

Avoid stress and tension.

Thrombus Formation and Hypertension

Thrombus is a solid mass or.plug of blood constituents (clot) in a blood vessel. This mass may block (wholly or only in part) the vessels in which it forms, or it may be dislodged and carried to some other location in the circulatory system, in which case it is called 'an embolus. Thrombosis is the formation of thrombus Thromboembolism is leading cause of deaths in western civilization.

Thrombus formation may be due the following:

Irritation or infection of lining of blood vessels.

Reduced rate of blood flow, due to

long periods of inactivity.

Pneumonia and tuberculosis, emphysema etc