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Hyperbaric oxygen and scopolamine.

N Bitterman1, E Eilender, Y Melamed

  • 1Israeli Naval Hyperbaric Institute, Haifa.

Undersea Biomedical Research
|May 1, 1991
PubMed
Summary
This summary is machine-generated.

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Scopolamine did not alter the time to seizures in rats exposed to high-pressure oxygen. However, scopolamine did cause visual and heart rate changes, suggesting caution when combining it with hyperbaric oxygen therapy.

Area of Science:

  • Pharmacology
  • Neuroscience
  • Hyperbaric Medicine

Background:

  • Scopolamine (Hyoscine) is an anticholinergic drug used for motion sickness.
  • Its potential use in hyperbaric oxygen therapy necessitates understanding its interaction with high-pressure oxygen.

Purpose of the Study:

  • To investigate the interaction between scopolamine and hyperbaric oxygen in rats.
  • To determine if scopolamine affects the latency period before oxygen-induced seizures.

Main Methods:

  • Thirty-six rats were administered scopolamine (0.02 or 0.2 mg/kg) or saline.
  • EEG and heart rate were monitored during exposure to 5 atm abs oxygen.
  • EEG spectral analysis and seizure latency were evaluated.

Main Results:

Related Experiment Videos

  • Scopolamine did not significantly alter the latency period to hyperoxic seizures.
  • EEG activity and pupil dilation were affected by scopolamine.
  • Heart rate showed dose-dependent changes: decreased at 0.02 mg/kg and increased at 0.2 mg/kg.

Conclusions:

  • Scopolamine does not change the time to hyperoxic seizures in rats.
  • Visual and cardiovascular side effects of scopolamine warrant consideration during hyperbaric oxygen therapy.