Doolette D J
Anaesthesia & Intensive Care, The University of Adelaide, Australia, 5005.
Undersea Hyperb Med. 2003 Summer;30(2):127-34.
Acclimatization to decompression stress has been reported in caisson workers and helium-oxygen divers; however the alternative notion that the risk of decompression sickness increases with successive days of diving is widespread. We examined 201 multi-day series of 2 to 29 diving days identified retrospectively in a database of occupational air dives for evidence of acclimatization or sensitization. Decompression related health status was measured using a self-administered diver health survey; resulting scores were analyzed by linear modelling. Daily diving consisted of 1-3 dives each to mean maximum depth of 17.2 (SD 3.9) meters seawater for a mean duration of 23 (SD 17) min. Daily diver health scores increased with calculated daily risk of decompression sickness but were not influenced by the order of dives in multi-day series. Poor health outcome indicated by treated decompression sickness and diver health scores > 8 occurred early in multi-day series. There was no evidence of sensitization to decompression stress whereas the timing of poor health outcomes suggests an element of acclimatization.
沉箱工人和氦氧潜水员中曾有过对减压应激适应的报道；然而，潜水天数增加会使减压病风险上升这一相反观点却广为流传。我们在一个职业空气潜水数据库中，对回顾性确定的201个持续2至29个潜水日的多日潜水系列进行了研究，以寻找适应或敏感化的证据。使用一份潜水员自行填写的健康调查问卷来衡量与减压相关的健康状况；通过线性建模对所得分数进行分析。每日潜水包括每次1至3次潜水，平均最大深度为17.2（标准差3.9）米海水，平均时长为23（标准差17）分钟。每日潜水员健康分数随计算出的每日减压病风险增加而升高，但不受多日潜水中潜水顺序的影响。由治疗的减压病和潜水员健康分数>8所表明的不良健康结果在多日潜水系列早期出现。没有证据表明对减压应激敏感化，而不良健康结果的发生时间表明存在一定程度的适应。
