Gastric distension with a ventilator may be caused by improper pressure, mask leakage, improper application time, and insufficient gastric motility. Gastric distension can be improved by controlling the pressure, changing the position, choosing a mask, adjusting the time, and taking medication. 1. Pressure control: If the pressure of the ventilator is too high, causing the gas to enter the stomach, or if the pressure is too low and the patient inhales air through the mouth, gastric distension will occur, and the appropriate oxygen pressure can be adjusted under the guidance of the doctor. 2. Adjust the time: use the ventilator after 2 hours of eating under the guidance of the doctor to avoid gas entering the stomach, so as not to aggravate gastric distension. 3. Change of body position: When wearing a ventilator, it is recommended to slightly elevate the head of the bed to make it easier for gas to enter the airway. 4. Choice of mask: Choose an oral-nasal mask to solve the problem of carbon dioxide retention. 5. Medication: If at the same time there is poor digestion and absorption, slow stomach peristalsis is also prone to gastric distension, you can take drugs such as domperidone and mosapride to promote gastric peristalsis, accelerate gastric emptying, and relieve gastric distension. The use of ventilator stomach bloating may also be other reasons, should be timely under the guidance of the doctor to identify the causes, and take timely and reasonable methods of coping.