Midrand, Gauteng, South Africa.
S Afr Med J. 2019 Mar 29;109(4):12574. doi: 10.7196/SAMJ.2019.v109i4.13524.
Hyperbaric oxygen therapy is defined as an intervention in which an individual breathes near 100% oxygen while wholly enclosed inside a hyperbaric chamber at a pressure ≥1.4 atmosphere absolute (ATA). The Southern African Underwater and Hyperbaric Medical Association (SAUHMA)-approved indications commence at pressures ≥2 ATA. Low-pressure hyperbaric chambers, at pressures ≤1.4 ATA, are approved for acute mountain sickness only. Mild hyperbaric exposures with air deliver no more oxygen to the body than breathing oxygen by mask at sea level pressure. Exposure to treatment pressures <2.0 ATA while breathing air does not meet the SAUHMA definition of therapeutic hyperbaric oxygen therapy and does not achieve the minimum pressure and oxygen levels required for any SAUHMA-approved indication. All SAUHMA-approved indications require that the patient breathe near 100% oxygen while enclosed in a chamber pressurised to a minimum of 2 ATA. SAUHMA does not recommend the use of mild hyperbaric therapy for any medical purpose other than acute mountain sickness.
高压氧治疗是指在完全封闭的高压舱内，以 1.4 个大气压绝对压力（ATA）或更高的压力，让个体吸入接近 100%的氧气。南非水下和高压医学协会（SAUHMA）批准的适应证从 2 ATA 或更高的压力开始。压力≤1.4 ATA 的低压高压舱仅批准用于治疗急性高原病。与海平面压力下戴面罩吸氧相比，空气驱动的轻度高压暴露向身体输送的氧气并不多。在呼吸空气时，暴露于治疗压力 <2.0 ATA 不符合 SAUHMA 对治疗性高压氧治疗的定义，也不符合 SAUHMA 批准的任何适应证所需的最低压力和氧气水平。所有 SAUHMA 批准的适应证都要求患者在压力至少为 2 ATA 的封闭高压舱内吸入接近 100%的氧气。除了急性高原病之外，SAUHMA 不建议将轻度高压治疗用于任何医疗目的。
