Signs of ischemia may be different - it all depends on the affected organ. The most sensitive to lack of oxygen brain cells and heart muscle. Ischemia can occur in all organs and tissues, including kidney, liver, lung, lower limbs and so forth.
Symptoms of cerebral ischemia
Ischemia - is poor circulation in the organ or part of the body, which leads to a deficiency of oxygen and nutrients. Cerebral ischemia may develop on the background of atherosclerosis, blood clots or emboli (blood clots break away), a sharp spasm or expansion vessel, and so on.
Acute cerebral ischemia
Cerebral ischemia - how to overcome illness
often manifested as transient (transient), cerebrovascular accident. Symptoms of ischemia: headaches, dizziness, short-term impairment of speech, vision, hearing, movement or skin sensitivity. If the cerebral circulation continues for a long time, it is possible necrosis (death of) brain cells (neurons) - ischemic stroke. Depending on the location and size of area of necrosis ischemic stroke may be mild, moderate and severe.
Light ischemic stroke manifests as neurologic symptoms.
They may be different: one-sided paralysis or paresis (complete or partial violation of movements), visual impairment, hearing loss, skin sensitivity, and so on. Frequently stroke manifested as mild facial asymmetry.
Stroke moderate and severe is accompanied, as a rule, cerebral symptoms, which suggests that the process involved the entire brain. This is a severe headache, dizziness, nausea, vomiting, convulsions, loss of consciousness and coma. Against this background, developing neurological symptoms.
Signs of myocardial ischemia
The myocardium, or heart muscle as well as brain tissue, constantly requires oxygen and nutrients. Characteristic signs of myocardial ischemia - is angina - severe short-term pain in the heart, which are well removed nitroglycerin.
Most often associated with myocardial ischemia, atherosclerosis of the coronary arteries, in which the walls of coronary atherosclerotic plaques are deposited, reducing the vascular lumen. Initially, acute attacks of crushing, the contraction pains in the heart develop only during exercise, when the myocardium requires more than the usual amount of oxygen (angina). The attack takes place at the termination of exercise or taking nitroglycerin. But such attacks are gradually beginning to appear suddenly among complete rest. This condition is called angina rest.
There are so-called Prinzmetal angina - heart attacks of acute pain, barely filmed nitroglycerin. Often, these patients do not have evidence of atherosclerotic lesions of the coronary arteries. Bouts of acute pain in the heart often occur at night, including complete rest and the mechanism of their development is not yet fully understood.
An extreme manifestation of myocardial ischemia
Myocardial ischemia - the effect on the functional activity of the heart
It is myocardial infarction, in which the necrosis of some portion of the heart muscle. This is accompanied by severe pain in the heart, which can not be removed nitroglycerin. Such a patient in need of emergency medical care and hospitalization in a specialized department.
Signs of ischemia on ECG
Symptoms of angina ECG is usually not possible to fix. But if the attack begins during the diagnostic studies (such as during exercise stress) ECG seen some signs of ischemia, which run immediately after the end of heart attack pain.
When angina at rest also appear minor changes on an electrocardiogram. In addition, quite often during the attack shows signs of cardiac arrhythmia. All these changes are in most cases also disappearing after attack, but sometimes can be kept for several hours.
Typical ECG changes appear in a fit of angina Prinzmetal
Prinzmetal angina - a rare disease with serious consequences
. The ECG during the attack and for some time afterwards, you can see the changes characteristic of myocardial infarction. Characterized as cardiac arrhythmias. These changes are then completely disappear, in contrast to the true myocardial infarction, in which signs of ischemic ECG remain for a long time.
Signs of lower limb ischemia
Lower limb ischemia often is chronic, slowly rising character. The reason it may also be atherosclerosis. One of the first signs of limb ischemia
Lower limb ischemia - what is the prognosis of the disease
are fatigue when walking, heaviness in the legs when walking, creeping sensation in the leg (paresthesias), cold fingers.
Then, after a while there is intermittent claudication - leg pain while walking that cause the patient to stop and rest. After resting pain persist, the patient can walk normally again for a while, but then everything is repeated. Over time, tissue necrosis may occur that require amputation.
Emerging signs of ischemia indicate poor circulation in this or that body and require long-term care under the supervision of a physician.