Why does a ventilator cause edema?
Disease description:
I went to visit my grandmother; she was hospitalized due to illness. Why did the ventilator cause her to develop edema?
Doctor's answer (1)
Dr. Li Jingli
The main causes of edema induced by ventilators include the following points:
1. High tension state: The pressure generated by the ventilator during operation is relatively high. A continuous high tension state may compress local tissues, causing ischemia and hypoxia, which may lead to extravasation of tissue cell fluid and result in edema.
2. Air leakage and improper care: If proper care measures are not taken during ventilator use, air leakage may occur. Gas entering the body through the respiratory tract may cause symptoms such as chest tightness and shortness of breath, resembling edema. In addition, procedures such as tracheal intubation may irritate the throat area, leading to congestion and swelling.
3. Cardiac insufficiency: For individuals with a history of heart disease, prolonged use of a ventilator may trigger disease exacerbation, leading to decreased cardiac function, impaired blood return, and subsequent sodium and water retention and heart failure, which can cause edema.
4. Allergic reaction: Some individuals may have allergic reactions to certain substances in the ventilator (e.g., rubber products). When allergens stimulate the skin or mucous membranes, a series of adverse reactions may occur, including edema.
If symptoms such as edema occur, prompt medical attention should be sought and treatment followed as directed by a physician.
