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Mild hyperbaric oxygen therapy (mHBOT) may help manage chronic hypotension by altering blood pressure ratios. However, individuals with hypertension should exercise caution due to potential effects.

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Area of Science:

  • Physiology
  • Hyperbaric Medicine

Background:

  • Blood pressure regulation is crucial for cardiovascular health.
  • Mild hyperbaric oxygen therapy (mHBOT) involves exposure to increased atmospheric pressure with supplemental oxygen.
  • Understanding mHBOT's effects on blood pressure is essential for therapeutic applications.

Purpose of the Study:

  • To investigate the impact of mild hyperbaric oxygen at 1.3 atmospheres absolute (ATA) with 30% oxygen on blood pressure.
  • To compare these effects against a control condition of 1 ATA with 20.9% oxygen.

Main Methods:

  • Ten healthy adults underwent two trials: a control and an mHBOT trial.
  • Each trial involved a 45-minute exposure in a chamber.
  • Systolic and diastolic blood pressure, heart rate, and peripheral oxygen saturation were measured.

Main Results:

  • Mild hyperbaric oxygen therapy resulted in lower heart rate and higher peripheral oxygen saturation compared to the control.
  • A significant change in the ratios of systolic and diastolic blood pressure from pre-measurement was observed after mHBOT.
  • No significant change in absolute blood pressure values was noted between the groups during exposure.

Conclusions:

  • Mild hyperbaric oxygen therapy shows potential as a method for managing chronic hypotension.
  • The observed changes in blood pressure ratios suggest a possible regulatory effect.
  • Individuals with hypertension should be monitored carefully when considering mHBOT due to potential implications.