The heart is the most important organ of the human body, its role is like a never-ending pump, every beat of the heart, in fact, is to put pressure on the blood vessels, so that the arterial blood vessels will contain fresh oxygen, nutrients blood delivered to the whole body, while the venous blood vessels are responsible for the blood to be recovered and used again.
This means that the body can maintain basic physiological activities only if the heart is healthy.
However, in recent years, due to the aging of the population of mainland residents, the increase in the number of smokers and alcohol, changes in the social environment, diet and living habits, etc., the incidence of heart disease in the mainland has become higher and higher, the most common of which is coronary heart disease.
"Coronary heart disease" should have been heard of by everyone, it is the clinical abbreviation of coronary heart disease.
Affected by a variety of factors, the patient's coronary arteries gradually developed into atherosclerosis, blood vessels became more and more narrow, and the blood oxygen supply to the myocardium was insufficient, and eventually coronary heart disease appeared. In clinical view, the most typical symptom of coronary heart disease is: angina!
The clinical manifestations of angina are diverse and can be divided into the following manifestations:
1. Typical chest pain: this kind of chest pain mostly occurs after the patient has carried out vigorous physical activity and emotional agitation, and its manifestation is sudden precordial contraction, colic or squeezing pain, and can also be manifested as chest suffocation.
The pain usually begins behind the sternum or the precordial region and radiates to the patient's left shoulder, left arm, fingers, and other areas.
In the early stages of coronary heart disease, after the onset of angina, the patient can be relieved after appropriate rest, or the mouth contains nitroglycerin can also be relieved;
2. Variant angina: this condition mostly occurs in patients with coronary heart disease and hyperglycemia, and its onset is directly related to the spasm of large blood vessels.
The most direct difference between it and typical angina is that it occurs suddenly at quiet, which is not related to fatigue and mental tension, and patients will even suddenly occur in the sleep state, and the ST segment is found to be significantly elevated at the time of examination.
Compared with typical angina, variant angina is more worthy of vigilance, and it can lead to serious hazards such as myocardial infarction, severe arrhythmias and sudden death;
3. Unstable angina: if the nature of the patient's chest pain has changed significantly, such as the recent occurrence of progressive chest pain, and the pain threshold gradually decreases, a little physical activity, emotional agitation will occur, and even at night.
And the pain gradually increases, the frequency becomes more frequent, the duration is longer and longer, and it is difficult to relieve with nitroglycerin, which often requires consideration of atypical angina.
It should be emphasized here that in mainland clinical practice, there are many patients with coronary heart disease whose symptoms are not typical, but only occasionally there are symptoms such as palpitations, fatigue, and precordial area.
Some patients develop systemic symptoms with heart failure. Even in nearly 1/3 of patients, the first coronary heart disease attack is manifested as sudden death.
If, recently, during physical activity, or when overexcited, there is a sudden precordial discomfort, and this is repeated several times, it is likely that the coronary veins have narrowed or even the coronary heart disease has arrived.
In this case, patients need to be vigilant and seek medical attention in time for relevant examinations so as not to miss the best time for diagnosis and treatment of coronary heart disease.