/kloc-at 2 o'clock in the afternoon in July, 2003, two nurses from Peking Union Medical College Hospital met a 60-year-old man on the road who had a heart attack and lost his breath and heartbeat. The situation is urgent.
In addition, a man in Zhengzhou had a heart attack on the subway; A woman in Kunming had a heart attack on a bus; A man in Harbin also had a heart attack while shopping. ...
Why the recent high incidence of myocardial infarction? What are the risks of myocardial infarction in early autumn?
The weather is sultry this summer, and the "autumn tiger" after beginning of autumn is also fierce. Referring to the recent weather, we set up an "myocardial infarction room" at the scene of the program with a temperature of 36℃ and a humidity of 60% to see what will happen to the human body after staying in this environment for a period of time.
experiment
Before entering the "myocardial infarction room", Dr. Wang Kai's blood pressure was 1 19/86mmHg, and his heart rate was 74 beats per minute. After staying in the "myocardial infarction room" for 20 minutes, Dr. Wang Kai not only turned pale, but also his blood pressure became 126/80 mmHg and his heart rate rose to 92 beats/minute.
1, high temperature and high humidity are easy to cause myocardial infarction.
Experts said that under normal circumstances, the oxygen content in the air is high, but the oxygen in the "myocardial infarction room" is thin, and the blood vessels and tissues of the myocardium are prone to ischemia and hypoxia, which makes people have symptoms such as elevated blood pressure, rapid heartbeat, palpitation and shortness of breath, dizziness, difficulty breathing, nausea and vomiting.
It is found that the somatosensory temperature will increase by 65438 0% for every 5% increase in humidity. For example, at the same temperature of 32℃, if the humidity reaches 60%, the somatosensory temperature will increase by 12℃ compared with the humidity of 0, that is, the actual perceived temperature is 44℃.
Sweating will take away some heat, making people feel cool, but when the humidity is greater than 60%, people will feel hotter because they can't take away heat through sweating. High temperature, high humidity and sealing can easily induce myocardial infarction.
2. Heatstroke may cause myocardial infarction.
If the temperature is above 32℃ and the humidity is above 60%, people are prone to heatstroke and may also induce myocardial infarction. Experts have met such a patient-he had an outdoor training in the hottest day of this summer, spent an afternoon in the sun, went home to take a 10 minute cold shower, suffered from heatstroke, and suddenly had a heart attack.
Both heatstroke and myocardial infarction can cause dizziness, chest tightness, headache and blood pressure drop. How should we distinguish them?
Touch and view to distinguish myocardial infarction.
1 touch: touch the forehead and armpits. If it is hot sweat, it may indicate heatstroke; Cold sweat may indicate myocardial infarction.
2 look: look at the face. There is bloodshot and redness on the face, which may indicate heatstroke; Paleness may indicate a heart attack.
In addition, there is a sense of oppression and death in the chest area, which may also indicate myocardial infarction. The golden treatment time for sudden myocardial infarction is 120 minutes, so you must see a doctor as soon as possible.
Recently, there was a news report on the Internet that a 65-year-old aunt died of a heart attack during morning exercise. But that day, after getting up, my aunt only did ordinary things such as washing, drinking water, cleaning and doing morning exercises. What's wrong, which may be related to myocardial infarction?
1, get up too fast, the heart is prone to ischemia.
People are controlled by two kinds of nerves: sympathetic nerve and vagus nerve. When awake, it is controlled by sympathetic nerve, which is an excited state; Sleep is controlled by vagus nerve, which makes people rest.
In the morning, sympathetic nerve and vagus nerve "fight" each other, which is called sympathetic nerve storm in medicine. If you get up suddenly, your heart and brain are prone to ischemia and hypoxia, which may induce myocardial infarction. Experts suggest lying down for half a minute after waking up and getting up slowly.
2, do not eat breakfast and do morning exercises, the risk of myocardial infarction is high.
Doing morning exercises without breakfast is easy to induce hypoglycemia, which may lead to vasospasm; In addition, the confrontation between sympathetic nerve and vagus nerve also puts new pressure on blood vessels. If the blood vessel itself has problems such as stenosis and unstable plaque, it may cause myocardial infarction.
It is found that people who skip breakfast for a long time have a higher proportion of abnormal blood lipid and blood sugar than those who often eat breakfast. Moreover, for diabetic patients, hypoglycemia is the main reason for increasing mortality. Severe hypoglycemia can also be accompanied by severe sympathetic nerve excitement, which may induce acute myocardial infarction.
In addition, skipping breakfast can easily lead to overeating at noon and at night, which is not conducive to weight control. After a long time, the metabolism of blood sugar, blood lipid and uric acid may be abnormal, increasing the incidence of cardiovascular and cerebrovascular diseases.
Experts suggest that it is more appropriate to have breakfast 30 minutes after getting up in the morning, and the interval between two breakfasts is 4 to 5 hours. The nutritional structure of breakfast should be as complete as possible, and milk, eggs, oats, fruits and vegetables can be eaten together.
Oat omelet
Ingredients: oats, eggs, flour, oil, salt.
Exercise:
1. Oats, eggs and flour are stirred into paste, and appropriate amount of salt is added;
2. Add oil to the pan and fry the batter until both sides are golden.
In the morning, people can exercise anywhere in the park, but some people exercise in strange ways, such as:
These sports methods are highly respected among middle-aged and elderly people, but they may not play a role in sports, especially for the elderly with basic diseases, which may lead to serious consequences:
◎ A 50-year-old man in Zibo suffered a heart attack during morning exercise; An old man in Baoding also had a heart attack while doing morning exercises in the park. ...
Why does improper exercise lead to myocardial infarction? How to exercise is correct?
1, why does exercise induce myocardial infarction?
We use cylinders to simulate blood vessels, red liquid to simulate blood, and yellow solid to simulate lipid plaques on blood vessels. During strenuous exercise, the shear force of blood flow can cause endothelial damage, and also make the plaque unstable, leading to shedding and rupture, leading to platelet aggregation blocking blood vessels and inducing myocardial infarction.
In addition, during strenuous exercise, myocardial infarction may occur in the following two ways:
① The patient had vascular stenosis, but he didn't feel uncomfortable at ordinary times. With the rapid heartbeat during exercise, heart ischemia and hypoxia become more serious, and the muscles supplied by the distal blood vessels may be ischemic, damaged and necrotic, thus inducing myocardial infarction.
② During exercise, the sympathetic nerve is excited violently, causing vasospasm and inducing myocardial infarction.
Therefore, I suggest you go to the hospital to do a treadmill test, evaluate your heart health, and then make a "exercise prescription" that suits you.
2. Protect yourself and walk quickly.
Improper exercise can easily lead to myocardial infarction crisis. How to walk is more conducive to health? Protective walking recommended by experts has three main points: straight, two bends and three fronts.
◎ Always: keep the cervical spine and back in a straight line, look straight ahead, hold your chest out, and relax your arms;
◎ Two bends: the arm bends 90 degrees and swings naturally with the walk, but not higher than the shoulder;
◎ Three Fores: The forefoot hits the ground first, the thigh is raised a little, and the back pedal is full, which can make the muscles tense and consume more calories.
For patients with myocardial infarction, the best treatment is to open blood vessels in the shortest time. At present, we are adhering to the concept of "interventional non-implantation", that is, modifying and expanding the blood vessels, so that the plaques in the blood vessels are arranged regularly and vertically, and a smooth vascular cavity is artificially created.
In the past, it was necessary to implant permanent metal stents, but for blood vessels, stents are foreign bodies, which may cause restenosis and require long-term use of antiplatelet aggregation drugs.
Biodegradable scaffolds are now used. This is a new biomaterial, polylactic acid (PLLA), which can temporarily support blood vessels. Generally, it can be completely degraded into carbon dioxide, water and acid after 3 years.
However, because everyone's vascular condition is different, it is necessary to follow the doctor's advice on which stent to place.