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Breathing pressurized air in hyperbaric oxygen therapy sessions can affect lung function in hyperbaric chamber inside attendants (HCIAs). Repeated sessions may lead to more significant pulmonary function test changes.

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Area of Science:

  • Occupational Health
  • Pulmonary Medicine
  • Hyperbaric Medicine

Background:

  • Hyperbaric oxygen (HBO2) therapy involves breathing pressurized air.
  • Hyperbaric chamber inside attendants (HCIAs) are regularly exposed to HBO2 therapy.
  • The impact of repeated HBO2 sessions on HCIA lung function requires investigation.

Purpose of the Study:

  • To investigate the effect of two consecutive hyperbaric sessions on lung function in HCIAs.
  • To determine if lung function changes observed after the first session persist or worsen in a second session.
  • To assess the cumulative impact of repeated HBO2 exposure on pulmonary function.

Main Methods:

  • The study included 29 HCIAs working in an HBO2 therapy unit.
  • Pulmonary function tests (PFTs) were measured before and after two consecutive HBO2 sessions.
  • Data from the first two sessions were analyzed to evaluate lung function changes.

Main Results:

  • A significant decrease in forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) was observed in both sessions.
  • Peak expiratory flow (PEF) and forced expiratory flow (FEF) 25-75% showed significant decreases, particularly in the second session.
  • No significant differences were found in pre-session PFT values between the first and second sessions.

Conclusions:

  • Hyperbaric oxygen therapy affects the pulmonary function of HCIAs.
  • Repeated HBO2 sessions can lead to more pronounced changes in lung function parameters.
  • These findings highlight the importance of monitoring lung function in personnel repeatedly exposed to hyperbaric conditions.