How long a brain hernia can be sustained on a ventilator depends on the patient’s actual condition, and if it is not actively treated, respiratory arrest will usually occur within a short period of time.
Simply using a ventilator to maintain the respiration of patients with brain hernia usually cannot alleviate the symptoms of brain hernia, and should be actively treated with dehydrating drugs (such as mannitol), and if necessary, debridement decompression surgery, and at the same time, actively deal with the primary disease, such as brain tumors, hydrocephalus, and so on.
If the treatment is timely in the early stage and there are no very serious complications, the life expectancy of the patient is usually not affected.
If the respiratory center is severely damaged by brain herniation, or if the brain herniation develops to an advanced stage, the respiratory ability has been completely lost, and without ventilator support, the patient will die in a short period of time.