Recently, some netizens reported that some people infected with COVID-19 found pneumonia in the course of medical treatment, and even the phenomenon of "white lung" appeared in the lung CT. What is "white lung"? How to avoid pneumonia caused by COVID-19 infection? Tong Chaohui, a respiratory critical disease expert, vice president of Beijing Chaoyang Hospital affiliated to Capital Medical University, and director of Beijing Institute of Respiratory Diseases organized by the National Health Commission, responded to the hot issues of public concern. Q: Please briefly introduce what is "white lung" and what measures are generally taken for treatment? A: "White lung" is a colloquial description in clinical work. It is either pneumonia or "white lung". When medical staff say "white lung", it means that the patient has severe pneumonia. In many cases, we will not call it "white lung", but describe whether it is unilateral or bilateral, whether it is on the top or on the bottom. Only when the bilateral lesions of the lung reach more than 75% can it be called "white lung". In the near future, some patients are suffering from general pneumonia. Very few patients with "white lung" also have corresponding treatment methods. Whether it is severe pneumonia, hypoxemia or acute respiratory failure, we have relatively mature treatment methods and corresponding guidelines and strategies from international to domestic. According to the recent rescue work of the heavy and dangerous patients in the designated hospitals in Beijing that we are responsible for, the proportion of "white lung" or heavy and dangerous patients accounts for 3% to 4%. The treatment of respiratory failure caused by pneumonia is very mature in clinical practice. As long as the medical treatment is timely, the doctors deal with it in a timely manner, take oxygen, use non-invasive and invasive ventilators, and even use extracorporeal membrane oxygenation (ECMO) in severe cases. A considerable number of patients can get better. Q: How to avoid pneumonia caused by delayed treatment of COVID-19 infection? A: The incidence of pneumonia is high in winter. When young adults get pneumonia, their body temperature rises immediately, they have fever, cough and expectoration in the respiratory tract. These symptoms are very obvious, and they often go to the hospital in time. The elderly may have no fever or obvious respiratory symptoms. Some elderly people can not express any special symptoms. When their families see that the elderly do not have fever or cough, they sometimes do not pay attention to them, and may delay their treatment. The onset of pneumonia in the elderly is relatively hidden, sometimes without obvious symptoms. The elderly should not be observed according to the reaction of young people, such as fever, cough and expectoration. It should be noted that if the elderly suddenly do not like to eat, the whole person wilts, or lethargy, they should see a doctor in time. The situation of the elderly should be closely observed. Here are some suggestions. The cold weather in winter is also the season of high incidence of pneumonia. Even without COVID-19, the elderly with basic diseases are also prone to pneumonia. Pay attention to monitoring the respiratory rate, whether there are chest tightness, shortness of breath and other symptoms. If the blood oxygen saturation is less than 93%, you should go to the hospital in time. Q: How to prevent and treat patients with chronic respiratory diseases in winter during the prevalence of COVID-19? A: Not only are chronic respiratory diseases in winter, such as chronic obstructive pulmonary disease, bronchiectasis, etc., but also cardiovascular and cerebrovascular diseases, which are high incidence in winter, so attention should be paid to monitoring and timely medical treatment. Chronic obstructive pulmonary disease (COPD) accounts for a high proportion in China. It occurs frequently in winter, and there are more inpatients in emergency rooms and respiratory wards
Edit：He Chuanning Responsible editor：Su Suiyue
Source：xinhua
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