Cardiac muscle myocardium, like any other organ, needs constant supply of oxygen. To the myocardium it supplies blood circulating in two coronary arteries, envelopes the heart like a crown (hence their name). Starting at the base of the aorta, the arteries split into smaller vessels, each of which supplies blood to a certain area of the heart.
In the case of spasm of the vessel, reducing its lumen or obstruct blood clot that occurred in the area of the atherosclerotic plaque develops oxygen starvation (ischemia), after which there is a necrosis of the heart muscle (myocardial infarction).
For the first time, the insufficient supply of oxygen attack is manifested after exercise. As the lumen in the coronary arteries is narrowed, pain in the heart area appear even after minor physical activity. In the end, a heart attack can be caught the man off guard even at rest.
In case of failure to provide first, and then qualified medical care, after 1-2 hours because of the disruption of normal circulation in the body there are irreversible and death occurs from heart attack.
heart attack Symptoms
The most pronounced symptom of a heart attack – prolonged pain in the chest followed by a feeling of pressure in the chest, rarely accompanied by heartburn.
Localization of pain is not always limited to the chest, sometimes during a heart attack pain can occur in the left arm and shoulder blade, shoulders, left side of neck, sometimes the pain can even occur in the lower jaw.The character of pain may be different: from a pressure, bursting and squeezing to burning, cutting and aching.
The constant companion of a heart attack is shortness of breath with little physical activity and even at rest. Heart palpitations, weakness, and severe sweating may indirectly confirm the presence of a heart attack.
The duration of pain during a heart attack usually exceed 5 minutes.
You first need to put the patient in bed with head elevated or sit him in a chair (preferably with armrests), to provide him with fresh air by opening a window or window vent.
Aspirin must be chewed and swallowed, and nitroglycerin in the form of capsules or tablets placed under the tongue. Aspirin for reducing platelet stickiness reduces the activity the formation of blood clots, preventing blocking of the coronary vessels, and nitroglycerin will have a vasodilator effect, increasing the amount of blood flowing to the heart muscle.
After administration of nitroglycerin, patients should be carefully monitored his well-being. In the event of a sharp fall in blood pressure, which will indicate sweating, sudden weakness, severe headache or shortness of breath, the patient should immediately be laid, lifting his feet with a cushion or pillow, to give to drink a glass of water and continue taking the nitroglycerin to give up.
If after 6-7 minutes after the first dose of nitroglycerin pain disappeared and the patient's condition is normalized, we can assume that the first encounter with a heart attack won. In the near future, you must see a doctor or to call it home.
In the case of persistent pain, take repeated nitroglycerin and immediately call an ambulance. If after 10 minutes the pain receded, in anticipation of the arrival of ambulance crews take nitroglycerin a third time.
In the absence of at hand aspirin and nitroglycerin emergency medical assistance should be called after 5 minutes Neustupa pain.
Should be aware that the longer patients fail to receive medical care, the higher the likelihood of damage to and necrosis of the heart muscle, with subsequent fatal outcome. Therefore, in the case of heart attack it is vital to give the man first aid and call an ambulance.
Take care of yourself! Be always healthy!