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This study investigated novel time-pressure curve protocols to reduce middle ear barotrauma (MEBT) during hyperbaric oxygen therapy (HBO2). The Constant Ratio (CR) protocol showed balanced ear strain, suggesting improved patient comfort and safety in HBO2 treatments.

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Area of Science:

  • Hyperbaric Medicine
  • Biomedical Engineering
  • Otolaryngology

Background:

  • Middle ear barotrauma (MEBT) is a frequent complication of hyperbaric oxygen therapy (HBO2).
  • Optimizing the pressurization phase is crucial for patient safety and comfort during HBO2 treatments.

Purpose of the Study:

  • To evaluate novel time-pressure curve protocols for HBO2 pressurization.
  • To reduce the incidence of MEBT and enhance the patient experience during HBO2 therapy.

Main Methods:

  • Computer simulations were employed using a simplified ear model.
  • Four distinct, mathematically derived pressurization protocols were analyzed: Constant Pressure Difference (CPD), Constant Volume Difference (CVD), Constant Ratio (CR), and Inverted Constant Ratio (ICR).

Main Results:

  • Different protocols exhibited varying degrees of simulated ear strain.
  • The Constant Ratio (CR) protocol demonstrated balanced ear strain and superior performance in measures like simulated ear cavity volume changes.
  • CR protocol showed potential for optimizing HBO2 pressurization dynamics.

Conclusions:

  • Sophisticated pressurization protocols, such as CR, may significantly reduce MEBT during HBO2 therapy.
  • Further clinical research is recommended to validate these simulation findings in real-world HBO2 applications.
  • Optimized pressurization protocols hold promise for improving patient comfort and safety in hyperbaric oxygen treatments.