Balldin U I
Aviat Space Environ Med. 1978 Nov;49(11):1314-8.
Intracardial gas bubbles, detected with Doppler ultrasound, and symptoms of decompression sickness were registered at 9,000 m simulated altitude within 12, 18, and 24 h of exposures to 15 or 39 m simulated water depth allowing no stage decompression. With a time interval of 12 h between diving and flying, the earliest intracardial bubbles were found in some subjects already during the first minutes at altitude, and the earliest symptoms of decompression sickness some minutes afterwards. With an 18-h interval, the earliest bubbles and symptoms as well as their average time onsets appeared somewhat later. With a 24-h interval, the earliest bubbles and symptoms were detected slightly later, i.e. after 17 min and 23 min, respectively. Thus, a safe time interval between no-stage decompression dives and flying at 9,000 m cabin altitude for a maximum of 15 min appears to be 24 h. For prolonged such flights, a longer time interval seems to be necessary.
在模拟海拔9000米高度、模拟水深15米或39米且不进行阶段减压的情况下，分别在暴露12、18和24小时后，用多普勒超声检测到心内气泡，并记录了减压病症状。在潜水和飞行之间间隔12小时时，一些受试者在到达海拔高度后的最初几分钟内就发现了最早的心内气泡，几分钟后出现了最早的减压病症状。间隔18小时时，最早的气泡和症状以及它们的平均出现时间稍晚。间隔24小时时，最早的气泡和症状分别在17分钟和23分钟后稍晚被检测到。因此，对于不进行阶段减压的潜水与在9000米机舱高度飞行最多15分钟而言，安全时间间隔似乎是24小时。对于更长时间的此类飞行，似乎需要更长的时间间隔。
