Can oxygen inhalation and blood pressure elevation alleviate moderate to severe hepatic encephalopathy?

May 13, 2025 Source: Cainiu Health
Dr. Yang Ziqi
Introduction
When patients experience cerebral hypoxia and decreased blood pressure due to encephalopathy, oxygen administration and blood pressure elevation can effectively alleviate moderate to severe brain disease. However, if the patient's condition is severe and irreversible damage such as cerebral tissue necrosis or cerebral edema has already occurred, the brain damage has exceeded the reversible range. Even with increased oxygen supply and blood flow perfusion, the already dead brain cells cannot be restored.

When patients experience cerebral hypoxia and a drop in blood pressure due to encephalopathy, oxygen therapy and blood pressure elevation can effectively alleviate symptoms of moderate to severe brain disease. However, if the condition is severe and irreversible damage has occurred, oxygen therapy and blood pressure elevation may not relieve symptoms. If abnormalities occur, timely medical attention is recommended. Detailed analysis is as follows:

Oxygen therapy can increase oxygen content in the blood and improve oxygen supply to brain tissue, helping to enhance brain cell metabolism and function. At the same time, raising blood pressure helps maintain cerebral blood flow perfusion, ensuring that brain tissue receives sufficient oxygen and nutrients. For patients with moderate to severe encephalopathy who develop symptoms such as cerebral hypoxia and hypotension, oxygen therapy combined with blood pressure elevation can aid in their recovery.

However, if the patient's condition is severe, with irreversible damage such as brain tissue necrosis or cerebral edema already present, or if there are serious complications such as pulmonary infection or respiratory failure, oxygen therapy and blood pressure elevation may not effectively alleviate moderate to severe encephalopathy. At this stage, the brain tissue damage has exceeded the reversible range; even with increased oxygen supply and blood flow perfusion, brain cells that have already died cannot be restored.

Patients should maintain good living habits and follow a healthy, scientific diet in daily life to improve treatment outcomes by actively optimizing their physical condition.