压缩减压疾病在表面压缩减压呼吸空气而不是氧气
Jan Risberg1,2, Helle Midtgaard3
1NUI, Bergen, Norway.
Diving and hyperbaric medicine
|September 17, 2024
概括
商业潜水员在表面减压过程中呼吸空气而不是氧气后经历了减压疾病 (DCS). 尽管存在错误,但DCS发生率低于预期,这表明中度遗漏的减压时间的影响很小.
科学领域:
- 职业健康 职业健康 职业健康
- 潜水医学是一门潜水医学.
- 生理学 生理学 生理学
背景情况:
- 商业潜水操作需要仔细的减压协议,以防止减压疾病 (DCS).
- 用氧气去压表面是一种标准的程序,以尽量减少剩余的负荷.
- 减压过程中的技术错误可能会导致潜水员面临重大生理风险.
研究的目的:
- 在一个商业潜水项目中报告DCS的不同寻常情况.
- 分析当潜水员在表面减压过程中错误地呼吸空气而不是氧气时发生的DCS的发生率.
- 评估遗漏的去压缩时间对DCS发生的影响.
主要方法:
- 记录了一项商业潜水项目,涉及91次潜水,深度为23.5-36.2米.
- 确定了一个技术错误,在表面减压过程中,潜水员在呼吸压缩空气而不是氧气.
- 评估了DCS发生率和严重程度,包括复发,并使用Bühlmann ZHL-16C算法计算了遗漏的减压时间.
主要成果:
- 在11名潜水员中,有2名潜水员在表面减压过程中呼吸空气后出现了DCS.
- 一名潜水员经历了一次严重的复发,心血管失补偿.
- 中位数遗漏的减压时间为17分钟 (范围为0-26分钟).
- 五名潜水员后来报告了轻微的,以前没有报告的DCS症状.
结论:
- 尽管在表面减压程序 (呼吸空气而不是氧气) 中存在重大错误,但DCS发生率低于预期.
- 轻微忽略减压时间似乎对DCS发生率有相对较小的影响.
- 轻微的DCS症状的延迟报告强调了彻底的潜水员汇报的重要性.
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