Abstract
We report here our studies of the effects of electrical stimulation of the vagus nerve on the development of oxygen convulsions and cardiovascular reactions in hyperbaric oxygen (HBO2). The motor signs of the neurotoxic action of HBO2 were identified in conscious rabbits exposed to O2 at 5 atm, along with EEG, ECG, external respiration, and brain blood filling in conditions of stimulation of the cervical component of the vagus nerve. Oxygen convulsions were found to be preceded by increased sympathetic tone, with a specific EEG pattern (synchronization of slow waves), changes in the ECG (tachycardia) and respiration (hyperventilation). Vagal stimulation enhanced the parasympathetic component of the autonomic system and significantly delayed the prodromal signs of oxygen toxicity and the onset of convulsions. Afferent spike activity from the visceral organs is regarded as a new target for countering the neurotoxic effects of hyperbaric oxygen.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
