coronary artery disease (Etiology , clinical manifestations, )
etiology:
the demand for oxygen increases when the body is in a sympathetic state and there is a work pressure on the heart muscle (increase oxygen demand) .
- Excessive afterload leads to tachycardia and hypertension.
- Sensations and tension.
- An increase in the release of the hormone adrenaline.
- Thyroid disorder .
Low supply of oxygen preload :
- contraction of the aorta.
- Arteriosclerosis.
- decrease in hemoglobin ، which was carrying oxygen, so there will be a decrease in red blood cells.
- infection in myocardial . heart attack .
Risk Factor:
- There are four reasons if these four are present in a person who must have a stroke (obesity, high blood fats, diabetes, pressure, and smoking).
- Within ten seconds, if the cardiac muscle does not deliver enough oxygen and sugar and is not replaced within ten seconds, ischemic cells occur.
- The accumulation of lactic acid is what causes an increase in pain and a feeling of suffocation, and this happens because of cell anaerobic metabolism.
- Finally, it will lead to angina, and if it is not treated, it will lead to myocardial infarction, which must be in the intensive care room to deal with the situation.
Clinical Manifestation:
Symptoms:
- A feeling of pain in the sternum (the bone between the front ribs).
- Severe pain and stiffness in the shoulder and arm area .
- the patient begins to pull and pull on himself.
- Difficulty in inhaling and exhaling.
- Like carrying a heavy load.
- A burning sensation in the esophagus. suffocation .
- shortness of breath .
- squeeze.
- Beats on the heart area with the hand, abnormal heart sounds.
- shock .
Things can get worse and a blockage occurs in the pulmonary veins and arteries, a stroke on the brain, or internal bleeding, where blood collects in the aorta or peripheral and works to form a balloon and rupture.