单次闭路呼吸机减压潜水在极冷的水中对心脏功能的影响
Laura J Tuominen1,2,3, Suvi Tuohinen4, Richard V Lundell5,6
1Department of Emergency, Emergency Medical Services, Centre for Prehospital Emergency Care, Tampere, Finland. laura.tuominen2@pirha.fi.
European journal of applied physiology
|January 8, 2024
概括
一次冷水技术潜水会损害潜水者的心脏功能,即使是微妙的变化. 这些影响虽然对健康人群没有临床意义,但对那些患有先前心脏病的人来说可能会带来风险.
科学领域:
- 心血管生理学心血管生理学
- 潜水医学是一门潜水医学.
- 环境的极端情况
背景情况:
- 沉浸在冷水中和减压潜水引发生理压力.
- 患有心血管疾病的老年潜水员在潜水期间面临更高的风险.
- 了解心脏对冷水潜水的反应对于潜水员的安全至关重要.
研究的目的:
- 评估冷水技术潜水对心脏和血液动力学的影响.
- 评估芬兰技术潜水员潜水后心脏功能变化.
主要方法:
- 39名潜水员在2至4摄氏度的水中使用呼吸机 (CCR) 完成了45米的技术潜水.
- 在潜水前和后评估心脏功能,水分和静脉气栓塞 (VGE).
- 在浮出水面后120分钟内发生了VGE检测.
主要成果:
- 潜水员经历了冷水和浸泡相关的流体流失,影响了血液动力学.
- 潜水后观察到心脏功能缩和放缩的微弱损伤.
- 除了一名潜水员外,所有人都检测到了VGE,但与心脏功能变化无关.
结论:
- 一次冷水中CCR潜水可以微妙地损害心脏缩和放缩功能.
- 观察到的心脏变化表明,除了简单的液体变化之外,生理性恶化也存在.
- 虽然对于健康的潜水员来说是安全的,但这些发现强调了潜在的风险,对于那些有潜在的心脏问题的人来说是如此.
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