急性热应激和飞行应激对飞行员心电影响研究

本文用英国Ｏｘｆｏｒｄ公司的ＭｅｄｉｌｏｇＥｘｃｅｌ长程心电图分析系统探讨了１６名飞行员在急性热应激和飞行应激这两天４８ｈ心电的动态变化。结果发现，热应激心率的最高值在第二次劳动时，而飞行应激心率的最高值在飞行前５ｍｉｎ，特别是年轻飞行员其心率增高更甚，在这期间大多飞行员在热应激和飞行应激这两天大多出现了房性、室性早搏，提前出现Ｐ－ＱＲＳ波和代偿不全，而这些异常心律大多在热应激劳动和飞行起飞前３０ｍｉｎ出现。提示飞行时，其负荷最大值在飞行前的３０ｍｉｎ，并为预防飞行事故等提供了科学依据。

Studies on the effects of acuteheat stress and flight stress on the dynamic changes ofelectrocardiogram.

he dynamic changes of electrocardiogram of 16pilots during acute heat stress and flight stress wasstudied with the long-distance electrocardiogram ana-lytical system of Medilog Excel made by England Ox-ford Company. Results were shown as follows. Thepeak of heart rate during acute heat stress occurred insecond labour, but that during flight stress's day oc-curred at 5 minutes prior to flight, especially, muchmore increased in young pilots, Most of the pilots suf-fered from atrial or ventricular premature beat, prece-dent occurrance of P-QRS and incomplete compensa-tion. Most of the arrhythmia occurred during workwith heat stress and 30 min before flight, These re-sults might provide certain scientific data for preven-tion of flight accidents.