Rostain J C, Gardette-Chauffour M C, Lemaire C, Naquet R
Centre National de la Recherche Scientfique, Faculté de Médecine Nord Marseille, France.
Undersea Biomed Res. 1988 Jul;15(4):257-70.
A H2-He-O2 mixture with 54 to 56% hydrogen was studied with 6 subjects (professional divers) during 2 dives to 450 m. The 38-h compression was the same as that used with other types of breathing mixtures (He-O2 and He-N2-O2). The results obtained during compression and during the stay at 450 m in H2-He-O2 show that the EEG changes (increase of theta activities in the anterior regions of the skull, decrease of alpha activities) are similar to those found with other respiratory mixtures. On the other hand, the other symptoms of high pressure neurologic syndrome (HPNS) were clearly improved for the same depths. Thus, neurologic symptoms (tremor, dysmetria, myoclonia, drowsiness) are nonexistent, and the performances during psychometric tests remain similar to those of the surface. Hydrogen, with its narcotic potency, suppresses some symptoms of HPNS and seems to open new perspectives for deep diving.
对一种含54%至56%氢气的H₂-He-O₂混合气进行了研究，6名受试者（职业潜水员）分两次下潜至450米。38小时的加压过程与使用其他类型呼吸混合气（He-O₂和He-N₂-O₂）时相同。在H₂-He-O₂混合气加压过程以及在450米停留期间获得的结果表明，脑电图变化（颅骨前部区域θ活动增加，α活动减少）与使用其他呼吸混合气时发现的变化相似。另一方面，在相同深度下，高压神经综合征（HPNS）的其他症状明显改善。因此，神经症状（震颤、辨距障碍、肌阵挛、嗜睡）不存在，心理测试期间的表现仍与在水面时相似。氢气具有麻醉作用，可抑制HPNS的一些症状，似乎为深潜开辟了新的前景。
