The COVID-19 has swept the world so far and has had a major impact on our lives. However, as of now, there is no drug specifically targeting the SARS-CoV-2 virus. Therefore, symptomatic support treatment has become a top priority in the whole process of disease treatment. As an important way of ventilator support treatment, mechanical ventilation is widely used in the treatment of severe and critical patients in epidemic situation. Mechanical ventilation can be divided into non-invasive ventilation and invasive ventilation according to whether an artificial airway is established. Both two methods of ventilation are widely used, and each has advantages and disadvantages.
The advantages of noninvasive ventilation mainly include: it does not need to establish an artificial airway, it can maintain the physiological barrier function, and the incidence of VAP is low, the tolerance is good, and it is easy to wean.
The advantages of invasive ventilation mainly include: establishing an artificial airway, easy drainage, easy airway management, closed and more accurate ventilation, etc
For a long time, the two support methods have complemented each other and jointly provide patients with ventilator support. The Chinese Electronic Journal of Critical Care Medicine has also published the respiratory support process for severe new coronavirus pneumonia.
In the practice of diagnosis and treatment, some doctors found that the patients with pneumonia had pneumothorax who were not given mechanical ventilation or non-invasive ventilation. And patients who were given drainage were observed that the pressure fluctuations in the drainage device even exceeded 30-40cmH2O. Such patients did not suffer from subjectively severe respiratory distress.
It is inferred that the formation of pneumothorax may be due to excessive transpulmonary pressure. In addition, clinical manifestations and objective indicators may be inconsistent. Lung damage in critically ill patients may develop unconsciously. Therefore, although non-invasive ventilation has many advantages including easy weaning, low VAP incidence and so on. In the treatment of patients with new coronary pneumonia, it is necessary to identify the patient's worsening condition and non-invasive failure early. Critically ill patients should not be overly insisted on using non-invasive ventilation for a long time to avoid the aggravation of damage caused by delayed intubation.
Therefore, in the third edition of the National Health Commission's New Coronary Pneumonia Diagnosis and Treatment Guidelines, it is clearly stated that "non-invasive ventilator should be changed to an invasive ventilator in time when it is invalid or worsened after two hours of use. Professor Du bin, a top expert in the field of critical care in Peking Union Medical College Hospital, has also publicly expressed that "if we can do it again, we will give critically ill patients an earlier attempt to use invasive ventilation." Therefore, non-invasive ventilation should be limited.
As a ventilator supplier, Pigeon Medical can set the ventilation volume according to the ideal weight, monitor the patient's cross lung pressure, advanced ventilation mode DualPAP, perfect alarm system and so on, which can effectively ensure the safety of patient's ventilation. In this therapy of new coronary pneumonia, its effect is remarkable.