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Stable angina pectoris

Stable angina is caused by exertional myocardial ischemia, which causes discomfort in the chest and nearby areas and can be associated with cardiac dysfunction, but no myocardial necrosis. Its characteristic is the pressing sex apnea appearance feeling with paroxysmal sex before the bosom, basically be located after sternum, can radiate before the heart area and left upper limb ulnar side, also can radiate the outer side of right arm and two arms or neck and mandible ministry, last a few minutes, often contain below via resting or glossile after taking nitroglycerin to disappear quickly. Angina pectoris is a clinical symptom of myocardial ischemia due to the temporary imbalance between myocardial oxygen demand and oxygen supply. It occurs when the blood and oxygen supplied by the coronary arteries cannot meet the myocardial needs under certain conditions. The disease is more common in men, the majority of patients in 40 years of age and above.
The cause of
This disease is coronary atherosclerosis causes more, still can by aortic valve stricture or close incomplete, plum toxic aortitis, hypertrophic heart disease, congenital coronary artery malformation, rheumatic coronary artery inflammation, myocardial bridge causes. Labor, emotional excitement, satiety, cold, rainy weather, acute circulatory failure are common causes.

Clinical manifestations of
The main clinical manifestations of angina pectoris are paroxysmal chest pain, which is characterized by:
1. Parts
Mainly in the upper or middle part of the body of the sternum, can spread to the anterior cardiac area, a palm-size range, and even across the anterior chest, the boundaries are not very clear. Radiate to left shoulder, left arm inside reach ring finger and little finger, or to neck, pharynx or mandible ministry.
Nature of 2.
Chest pain is often compression, tightness or constriction, can also have burning feeling, but not sharp, not like acupuncture or knife-like pain, occasionally with the fear of dying. When the attack, the patient often unconsciously stop the original activity, until the symptom remission.
3. The incentive
Fit often by physical labor or emotional excitement (such as anger, anxiety, excessive excitement, etc.) inspired, full food, cold, smoking, tachycardia, shock, etc. Pain occurs at the time of labor or excitement, not after a hard day. Typical angina pectoris often occurs under similar conditions. But sometimes the same labor causes angina only in the morning and not in the afternoon, suggesting a lower pain threshold in the morning.
The pain usually worsens gradually and then subside within 3 to 5 minutes, usually relieving after the original symptom-inducing activity is stopped. Sublingual nitroglycerin can also relieve it in a matter of minutes. Attacks may occur once every few days or weeks, or more than once a day.



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