SYMPTOMS OF HEART (CARDIOVASCULAR ) DISEASE .
PAIN IN THE LIMBS .
The pain can occur when tissues are not getting enough blood (a condition known as ischemia). The pain occurs because the tissues do not receive enough oxygen, which is carried by the blood to tissues, and because the waste products, which are made out of tissues by the blood that accumulates. If blood flow is completely blocked, as a blood clot in a large artery, a constant pain occurs suddenly, and the affected arm or leg becomes pale and cold. If blood flow is partially blocked, as can happen with atherosclerosis (typically a problem in the legs), the person usually feels a tightening, fatigue, pain in the calf muscle, during physical activity. This pain, called claudication, is quickly relieved by rest and similar returns during the activity.
The pain of the limbs can also be caused by tense muscles, nerve damage near certain spinal cord, blood clots in the veins (venous thrombosis) or a skin infection or muscle. If the doctor suspects that the pain is due to a malfunction of vascular ultrasound to assess blood flow in the affected area can be done.
FATIGUE .
When the heart pumps inefficiently because heart failure, blood flow to muscles may be inadequate during exercise, which causes weakness and fatigue. The symptoms are often subtle. People tend to compensate by gradually reducing their activity, or they may blame the symptoms of age.
FAINTING .
Turbidity (near-syncope) is the feeling that you are about to faint. Fainting (syncope) is a sudden and brief loss of consciousness followed by spontaneous return of consciousness. The causes of confusion and fainting tend to be the same. A person can lose consciousness, unless the brain is generally disrupted. This disorder usually occurs because the blood flow to the brain is reduced. cerebral blood flow may be reduced by a heart disorder or, more often, without disturbing the normal return of blood to the heart and reduces blood flow to the brain. The elderly are particularly vulnerable because the blood flow to the brain decreases with age. Brain disorders in themselves rarely cause fainting, unless they also affect blood vessels. Seizures, a brain disease that can cause loss of consciousness, but is not considered defective.
Cardiac abnormalities, blood flow to the brain can be reduced if the heart rate or rhythm is abnormal (or too slow, too fast) or if the heart does not pump blood adequately, because blood flow is blocked. Blood flow can prevent a defective heart valve (in most cases, the aortic valve), or blood clots in the lungs, sometimes the heart, and, rarely, cardiac tumors, such as atrial myxoma.
Many factors can interfere with the return of blood flow. Coughing or straining bowel can increase the return of the chest to relieve blood pressure. healthy soldiers may feel weak or faint could stay in a long time (a phenomenon called parade ground unconscious) because the leg muscles must be active to return blood flow. Strong sense (in particular, has generated examining bloody or gruesome scene) or the pain may activate the vagus nerve. As a result, the blood vessels to expand (extension), will reduce the return of blood flow and sometimes the cause of fainting (called vasovagal syncope). Some diseases of the brain and spinal cord and drugs (particularly blood pressure) may also expand the blood vessels and cause fainting.
Sitting or standing too quickly can cause discomfort or fainting, as the change in position causes the blood in the legs, causing a drop in blood pressure. Normally, the body adapts quickly to maintain blood pressure. The inability to adjust quickly called orthostatic hypotension. This condition is especially common among the elderly. People are more likely to feel weak or faint when standing. When you lie or a drop in cerebral blood flow increases, usually recover consciousness.
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