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Will the new crown vaccine cause lung nodules? In fact, more and more pulmonary nodules

Time:2022-12-08 06:12:30 author:Emergency treatment Read:583次
Will the new crown vaccine cause lung nodules? In fact, more and more pulmonary nodules

Recently, a rumor has spread on the Internet, saying that after taking the Kexing new crown vaccine, it will cause lung nodules, causing many people to be uneasy. Subsequently, a number of medical experts published popular science interpretations to refute the rumors, believing that it was false information. On September 24, when Gao Fu, an academician of the Chinese Academy of Sciences, attended the Mozi Salon, he explained again that there is currently no evidence that there is a close relationship between vaccination and pulmonary nodules, and a lot of research on lung immunity will be carried out in the future. In fact, Kexing's new crown vaccine is an inactivated vaccine, which is to treat the virus to make it lose its ability to reproduce and infect. In theory, it will not infect lung tissue to produce nodules. Pulmonary nodule risk was never mentioned in vaccine-related adverse events. Of course, the "lung nodules" that the public panic about do not refer to infected nodules, but nodules with a tendency to malignant tumors, which is also a problem that many people often encounter after physical examination.

Why are lung nodules increasing?

With the improvement of living standards, people's health awareness has become stronger and stronger. Many people will have a physical examination every year. Chest X-ray or chest CT examination is one of the must-check items. Especially chest CT, it is recommended that people older than 35 years choose low-dose lung CT as a physical examination item. Subsequently, the detection rate of pulmonary nodules is also increasing. This is because, in the past, physical examinations were mostly based on chest DR films, and many nodules could not be displayed. On chest CT films, especially some lung nodules smaller than 3 mm are basically screened out with the help of new instruments and software. Pulmonary nodules are round-like lesions located in the lungs, less than 30 mm in diameter, without atelectasis, hilar enlargement, and pleural effusion. After a CT scan of the lungs, the nodules look like "ground glass" on the CT film, so the nodules in the lungs are also called "ground glass nodules" in the lungs. Simply put, it means that something grows in the lung, "the lung is swollen", and the density of the "swelling" and its surrounding areas is higher than that of normal lung tissue. There are many causes of lung nodules. For example, after we inhale dust or other small particles, they will be deposited on the surface of the alveoli, and then be swallowed or wrapped by immune cells. The main cause of benign nodules. In addition, diseases can also lead to the production of pulmonary nodules, such as tuberculosis, lung inflammation, and lung tumors. Because pulmonary nodules grow in the lung parenchyma and are not close to parts with rich sensory nerves such as the pleura, trachea, and bones, patients with pulmonary nodules will not have special sensations and symptoms, and they will not be found without CT examination. Some people have cough, expectoration, chest pain, chest tightness, general weakness, etc. after finding out that they have pulmonary nodules during the physical examination. Most of them are caused by excessive tension and anxiety. Pulmonary nodules are the most common type of lesions in imaging. After a lung CT scan, almost 2 to 3 out of 10 people will be found to have small nodules on the lungs. Statistics show that the incidence of pulmonary nodules is 8.72% to 30.5%, with an average incidence of 20%. But among them, only 1% are really lung cancer. At present, the industry advocates precise management of patients with pulmonary nodules, that is, patients with small nodules (diameter less than 5 mm) can be managed in primary hospitals; patients with small nodules (diameter 5-10 mm) can be managed in hospitals with experience in diagnosis and treatment management; for patients with nodules with a diameter of 10 to 30 mm, an experienced specialist should be consulted as soon as possible.

How to distinguish benign from malignant?

Although most pulmonary nodules are benign, there are also a small number of malignant ones. Of course, if they are discovered, they cannot be ignored. People always worry that they are the unlucky one. So how is it justified? When you finish the examination and the image is displayed, the radiologist will observe the nodule and its surroundings from multiple directions, describe its size, number, location, density and surrounding lung tissue, and roughly distinguish the nodule as Benign or malignant. Malignant nodules generally look like claws, while benign nodules generally have regular and clear edges. Some hospitals also diagnose pulmonary nodules based on AI technology, and the accuracy rate is almost the same as that of pathology. However, most doctors of pulmonary nodules do not dare to immediately determine whether it is benign or malignant just by CT examination. At this time, there are two options. If the doctor thinks that it is more malignant, or the patient is eager to know the nature of the nodule, a needle biopsy can be done. Pathological examination, this conclusion has an accuracy rate of more than 99%, which is the gold standard for diagnosis. If the doctor thinks that the nodule tends to be benign, or the patient does not want to have a puncture, then regular follow-up can be done to check the development of the nodule and whether it has grown rapidly and has become malignant. If the lesion disappears during follow-up, then it is a benign inflammatory lesion. Some lesions may not disappear or change for many years, and these are mostly benign nodules. In addition to the size and density of pulmonary nodules, it also depends on whether the patient is a high-risk group, including: long-term smoking and long-term second-hand smoke, occupational exposures such as asbestos, radioactive elements, etc., family history of lung cancer, environmental oil fumes, and other lung Diseases such as chronic obstructive pulmonary disease (chronic bronchitis, emphysema), pulmonary fibrosis, tuberculosis, etc. Don't remind everyone that it is best to fix the follow-up of pulmonary nodules in the same hospital. Under the same inspection conditions, the dynamic changes of pulmonary nodules can be observed more accurately, which is more clinically meaningful.

How can lung nodules be prevented?

The occurrence of any disease has its specific factors, and the occurrence of pulmonary nodules is no exception. It is the result of the interaction of many factors. Controlling the factors that cause pulmonary nodules can prevent pulmonary nodules. 1. Quit smoking. Tobacco contains hundreds of harmful substances. Long-term smoking, such as smoking for 15 to 20 years, the harmful substances in tobacco will damage the trachea, bronchi, alveoli, etc., and pulmonary nodules may appear during CT examination. In addition, second-hand smoke, air pollution, kitchen fumes, house decoration pollution, etc., are also prone to cause lung nodules. 2. Avoid occupational exposure. Get rid of asbestos, dust and other polluted environments as soon as possible, or do strict occupational protection. 3. Keep the home environment clean and ventilated. Radon gas released from marble floors in newly renovated houses is an important carcinogen. Moisture and mildew can lead to respiratory diseases. Therefore, the home environment needs to be ventilated frequently, and deep cleaning should be carried out more, so as not to leave dead corners of hygiene. 4. Living routine and self-decompression. Irregular meals, staying up late for a long time, or maintaining a long-term high-stress life state, etc., will quickly deplete the positive hormones in the body, resulting in decreased body resistance and increased risk of disease. 5. Eat a healthy diet, eat more foods high in vitamins, high fiber and low fat. Vitamins mainly come from fresh fruits and vegetables. Millet, corn, oats and other coarse grains and fruits and vegetables are high in cellulose. It is advisable to minimize frying during the cooking process. Fried, smoked and roasted foods contain a large amount of carcinogens such as benzopyrene and acrylamide. Adhere to the "slow" principle when eating, and control the amount and rhythm of meals, which can not only fully digest food and absorb nutrients, but also effectively reduce the incidence of cancer. In short, there is no need to panic when a pulmonary nodule is discovered, and it is enough to pay attention to it and treat it scientifically, and go to a regular hospital for diagnosis and treatment by a professional doctor. #pulmonary nodules [super talk]#

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