On December 30, "Surge in demand for lung CT examinations" was on the hot search. Many netizens said that there were long queues of patients waiting for CT lung examinations in hospitals. Some hospitals were unable to get appointments for CT lung examinations on the same day, and had to wait in line for more than one day. Among the patients who were positive for COVID-19, about 50% had COVID-19 changes.
Among them, more than 80% of patients over 30 years old and coughing for more than 1 week have symptoms of COVID-19. This probability increases with age, and the elderly often develop not only COVID-19 but also bacterial infections.
Let me explain my conclusion.
First, the observation target is the -positive patients who come to the clinic. It does not mean that more than half of the new crown patients have new coronavirus pneumonia. Most people will not choose to go to the hospital for treatment when they are positive. Most people will come to the hospital for treatment either because their symptoms are severe, or they have not recovered for a long time, or they have poor physical fitness and other diseases. Of course, at such a young age, I rushed to the hospital with a temperature of 38°C and was so alive that I didn’t say anything!
Second, the changes in lung imaging are later than the clinical manifestations, so the detection rate of patients for more than a week is higher than that of people who have just started to have fever or who have had fever for two or three days. How to say it? Because what CT can actually see is the changes in morphology and of the lungs. After the new coronavirus enters the lungs, the lungs go through the molecular biology stage, then develop from physiology to pathology, and finally show morphological and imaging changes. To put it simply, it is a progressive process from the time when virus starts to invade the lung tissue to form pneumonia to when we see the pneumonia changes on CT. This time is about 3-7 days.
This is why we do not recommend chest X-rays and direct CT scans. By the time viral pneumonia can be seen on chest X-ray, half of this person's life has been lost.
The specific statistics of COVID-19 caused by COVID-19 infection is a serious and rigorous issue, and I cannot get it. But your intuition shouldn’t be too low, and I don’t recommend that everyone go to the hospital to get a CT just to know whether they have pneumonia changes.
looked at many examples, including those from friends around me.
basically fits the description of one sentence: the virus kicks the door open, bacteria follows.
Are the lung lesions in many people caused by the new coronavirus? Strictly speaking, it is not true, otherwise the antibiotic would not be effective.
But, is it related to the new coronavirus? That's so relevant. If you weren't infected with COVID-19, you wouldn't have given the bacteria an opportunity to take advantage of it.
Of course, there are also a few people who are directly caused by viruses.
No matter what, as adults, you still need to strengthen your own exercise and protect children and the elderly. If the elderly and children are indeed infected, you should prescribe appropriate medicine according to the condition, and don't panic too much.
What do you think? Welcome to actively discuss in the comment area!
