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前言减压病的起因是气压降到使氮气超饱和的水平,导致组织和血液内气泡形成。在减压前通过呼吸纯氧排氮称作预先呼吸或预先吸氧。预先吸氧时间与减压病发生之间的关系Waligora等(1987年)曾描述为直线回归,预先吸氧8 h、4 h,相应的减压病发病率为0％、21％,并推测预吸氧1 h的发病率达40％。这与所测的排氮指数曲线有明显差异,在4 h以内尤甚。本
Preface Decompression sickness is caused by the pressure drop to a level at which nitrogen is supersaturated, resulting in the formation of air bubbles in tissues and blood. Before decompression by breathing pure oxygen row nitrogen called pre-breathing or pre-oxygen. The relationship between the pre-oxygenation time and the incidence of decompression sickness Waligora et al. (1987) described as a linear regression, pre-oxygenation 8 h, 4 h, the corresponding incidence of decompression sickness was 0%, 21%, and speculated Pre-oxygen 1 h incidence rate of 40%. This is significantly different from the measured nitrogen emission index curve, especially within 4 h. this