What is hyperbaric oxygen and hyperbaric oxygen therapy?
The pure oxygen breathed by the body in a high pressure environment, which is equal to the pressure of the environment, is called hyperbaric oxygen. The application of high air pressure to treat a variety of diseases is hyperbaric oxygen therapy.
What are the effects of hyperbaric oxygen on the body’s nervous system?
1. Biphasic effect on the activity of central nervous system: The effect of hyperbaric oxygen on the activity of higher central nervous system is expressed in two consecutive phases of enhancement and inhibition.
(1) Enhancement phase. The first phase of hyperbaric oxygen is the enhancement of neural activity, which is characterized by enhanced tactile sensation, memory, perceptual acuity, and more coordinated and flexible body movements. The EEG of the enhanced phase shows accelerated electrical oscillations and increased wave frequency.
(2) Inhibition phase. After 30-40 min under hyperbaric oxygen, the brain activity gradually entered the inhibitory phase of cortical function from the enhanced phase, which showed that the coordination of body movement was weakened, the attention was relatively scattered, and the speed of reading and writing was slowed down. EEG shows slowed down electrical oscillation and increased wave amplitude.
2.Increase the blood-brain barrier permeability.
3.Increase the partial pressure of oxygen in brain tissue and cerebrospinal fluid.
How many stages of hyperbaric oxygen therapy are there?
The treatment is divided into three stages: pressurization, pressure stabilization and decompression.
1.Pressurization is the use of compressed gas into the hyperbaric chamber, in order to increase the pressure inside the chamber to reach the predetermined treatment pressure. The time required from the start of pressurization to the scheduled treatment pressure is called “pressurization time”. If the pressurization is suspended in the middle and then continued to pressurize to the required pressure, the suspended pressurization time should also be included in the pressurization time.
2, when the pressure rises to the required treatment pressure, so that it is stable and unchanged, known as stable pressure, that is, high pressure stay.
3.Decompression refers to the process of gradually lowering the cabin pressure to normal pressure after the steady pressure oxygenation is completed, using an appropriate program.
Which neonatal and infant diseases is hyperbaric oxygen effective for?
1.Common neonatal diseases: neonatal asphyxia (after resuscitation), neonatal pulmonary hyaline membrane disease, neonatal intracranial hemorrhage, neonatal tetanus, neonatal hemolytic jaundice.
2. Vegetative state due to various causes. (craniocerebral trauma, poisoning, various encephalitis, encephalopathy, etc. caused by the vegetative state)
3, neonatal prophylaxis: prolonged labor, prolapsed or round neck umbilical cord, premature rupture of placenta, obstructed labor, forceps assisted delivery.
4, the birth of certain seriously ill women: such as pregnant women with poisoning, diabetes, severe anemia, kidney disease, serious infections, etc. newborns.
5, neonatal post-surgical treatment: neonatal intestinal perforation (peritonitis) or hypertrophic pyloric stenosis and other post-operative hyperbaric oxygen therapy, foreign reports have good results.
6, cerebral palsy, craniocerebral trauma, viral encephalitis, septic encephalitis, meningitis. Cerebral edema, drug and other poisoning, carbon monoxide poisoning, etc. have been reported in China.
7, peripheral nerve injury.