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Operation Everest II. Altitude Decompression Sickness during Repeated Altitude Exposure

机译:珠穆朗玛峰二号行动。重复高原暴露期间的高原减压病

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The incidence of altitude decompression sickness (ADS) was studied in 23 altitude scientists during repeated altitude exposure to 15-20,000 feet in a decompression chamber. Prior to each altitude exposure, a 30-60 minute prebreathing period with 100% oxygen took place. Ascent was made to an altitude at a rate of 2000 feet per minute. The altitudes studied ranged from 15-29,000 feet. Symptoms reported appear consistent with previous reports with regard to security of symptoms. Incidence of ADS at 26-29,000 feet was 29.7% during 274 change flights and 1264.4 hrs of altitude time. Incidence appeared related to age or body index (weight/height2). This high incidence of ADS reported in this study is similar to that reported by NASA. Keywords: Bends; Altitude; and Hypobaric chamber.

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