On November 30, the National Influenza Center of China released a summary of the influenza epidemic in China (as of November 26, 2023). Surveillance data showed that in the 47th week of 2023 (November 20-November 26), the positive rate of influenza virus testing in southern and northern provinces continued to increase, with the A(H3N2) subtype being the main type, followed by the B (Victoria) lineage. Outbreaks of 401 influenza-like cases have been reported nationwide.
Recently, there has been an epidemic of several respiratory diseases. Infection with Mycoplasma pneumoniae will cause "white lung"What conditions are prone to "white lung"?Do I need to "wash my lungs" if I have pneumonia?These hot issues are the focus of many parents. One article combing——
CT shows white images.
Is it "white lung"?
Children with mycoplasma pneumonia have a white patch on lung imaging, which is mostly caused by infection of one lobe or segment of the lung, mainly due to airway obstruction or inflammatory exudation in the lung, but most of the other lobes are normal. According to *** report, Professor Lu Hongzhou, president of the Third People's Hospital of Shenzhen, pointed out that in this case, children can be in a short period of time by patting the back for expectoration, drug expectoration, bronchoscopy, etc.
In other words, most of the 'white lungs' mentioned on the Internet are not real white lungs. Professor Lu Hongzhou, president of the Third People's Hospital of Shenzhen, said that some parents were very worried when they received the CT report and thought it was white lung when they saw the white image area on it. He pointed out that it could be inflammation in the lungs, but it does not mean that the situation is very serious.
Mycoplasma pneumoniae causes lung infections. According to "Huashan Infection" WeChat***
Only when the area of the white image area of CT examination reaches 70%-80%, it is commonly known as 'white lung' in clinical practice. In fact, the lung tissue of a patient with 'white lung' is not white to the naked eye. Professor Zhang Jiming, deputy director of the Department of Infectious Diseases of Huashan Hospital Affiliated to Fudan University, said that under normal circumstances, the lungs are mainly composed of air-filled alveoli, and when CT or X-ray examination is performed, the rays can easily penetrate the alveoli and appear as a black area on imaging.
He said that "white lung" is an imaging manifestation caused by inflammation and exudation of lung tissue and lung consolidation, and it is difficult for the radiation to penetrate the lesion area during CT examination, so it presents a white image. Patients with "white lung" often have a more severe disease and a poor prognosis.
Elderly people or people with underlying medical conditions.
More likely to develop "white lung".
Zhang Jiming said that when a patient has "white lung", it often indicates that the condition is very serious. Therefore, after infection with the new coronavirus, influenza virus, respiratory syncytial virus, Mycoplasma pneumoniae, certain bacteria and fungi, if the high fever does not go away, dyspnea, cyanosis of the lips, oxygen saturation decrease, etc., you should seek medical attention in time, and perform lung CT examination and respiratory pathogen examination.
He mentioned that the elderly and patients with serious underlying diseases are more likely to develop "white lung" after their lungs are infected with the above-mentioned pathogens, and immunodeficient people and those who have not been vaccinated against the new crown and influenza often have an insidious onset and rapid progression, and even have not yet developed symptoms such as fever and dyspnea, and have progressed to "white lung" during CT examination.
A number of experts also said in interviews that infection with Mycoplasma pneumoniae does not necessarily cause pneumonia, and only when Mycoplasma pneumoniae invades the lower respiratory tract of humans can mycoplasma pneumonia occur.
Lu Hongzhou said that according to clinical data, whether it is Mycoplasma pneumoniae pneumonia or influenza virus infection, the prognosis of children is relatively good, and the rate of severe disease has not increased significantly in the near future. He reminded parents that there is no need to panic excessively, and those who are able to do so should still get vaccinated against influenza as soon as possible to reduce the possibility of infection.
I had mycoplasma pneumonia.
What is the need for "lung washing"?
At the time of medical treatment, someone was advised by the doctor to "wash the lungs". Recently, it was reported that a children's hospital in Anhui Province operated as many as 67 cases of "lung washing" in one day.
In fact, there are strict indications and contraindications for "lung washing", and mild bronchopneumonia does not need to be done, when bronchopneumonia causes some physiological and pathological changes, such as lobar consolidation, atelectasis, mucus sputum plugs, or plastic bronchitis has appeared, it is necessary to "wash the lungs", because jelly-like mucus sputum plugs will block some small airways, resulting in respiratory failure. Not suitable if the patient has developed necrotizing pneumonia or pulmonary embolism.
Qin Qiang, chief physician of the first respiratory department of Beijing Children's Hospital, said that "lung washing" is a very common operation in the respiratory department, and most of the time it can be solved by local anesthesia, the main operation is to spray some anesthetic in the nasopharyngeal cavity, and the inflammatory substances on the surface of the respiratory mucosa are washed out as soon as possible after the tracheoscope enters smoothly, and the whole process is about a few minutes or ten minutes. Only in rare cases, the operation may take longer, and a second operation may be required. Usually the patient undergoes a bronchoscopy** to open the airway as soon as possible and recover quickly.
Know more. According to the latest surveillance data of the China Influenza Center, from November 20 to November 26, the positive rate of influenza virus testing in southern and northern provinces continued to increase, with the A(H3N2) subtype being the main type, followed by the B (Victoria) lineage. Outbreaks of 401 influenza-like cases have been reported nationwide.
April 3, 2023 November 26, 2023 (based on the date of the experiment):
A(H1N1)PDM09 subtype influenza virus 1820 strains (973%) are a Victoria 4897 2022-like;
717 strains of influenza A(H3N2) subtype viruses (508%) were similar to A Darwin 9 2021 (EGG), 725 (51.)4%) are similar to A Darwin 6 2021 (cell line).B (Victoria) strain 181 (953%) are B Austria 1359417 2021-like.
Since April 3, 2023, drug resistance surveillance has shown that except for 4 influenza strains of the A(H1N1)PDM09 subtype that are highly susceptible to neuraminidase inhibitors, the other influenza strains of the A(H1N1)PDM09 subtype are sensitive to neuraminidase inhibitorsAll influenza A(H3N2) and B strains are susceptible to neuraminidase inhibitors. All influenza A(H1N1)PDM09, A(H3N2), and B strains are susceptible to polymerase inhibitors.
*: Beijing** (ID: beijing daily) comprehensive*** China Influenza Center, Beijing CDC official micro report.