80m氦氧饱和-100m巡回潜水时的动态心电图分析  

AN ANALYSIS OF AMBULATORY ECG IN THE 80m HELIOX SATURATION -100m EXCURSION DIVE

作　　者：高丙春 龚治平 黄小琴 

机构地区：[1]411医院

出　　处：《解放军医学杂志》1990年第1期14-17,共4页Medical Journal of Chinese People's Liberation Army

摘　　要：报道8名潜水员在80m氦氧饱和-100m巡回潜水过程中动态心电的活动变化。24人平均心率明显减慢,饱和及减压阶段与对照期相比,分别下降15.5％及19.7％,训练结束后心率立刻回升。分析表明,心率减慢与氧分压增高密切相关,故认为高压氧是引起心率减慢的主要原因。8名潜水员出现室上性心律失常,5名出现室性早搏,虽心律失常的出现率较对照期略高,但仍属正常范围。6名潜水员在潜水作业全过程反复出现短暂的缺血型ST-T改变,潜水后第2天的常规心电图12导联全部正常。尿-17-酮、17-羟类固醇测定表明,训练阶段机体应激反应加强,导致心律失常和ST-T改变。应激因子可能包括训练中的高气压、高分压氧、噪声及狭窄的密闭环境等因素。The study deals with the observation of the changes in the electrical activities of the heart in 8 healthy divers during 80m heliox saturation-100m excursion dive by means of an ambulatory ECG.Results showed that there was significant change in the 24h average heart rate,and the decrease of heart rate at saturation storage depth and decompression periods were 15.5% and 19.7% respectively.An immediate recovery of the heart rate was closely related to the increment of PO2,which clearly indicated that hyperbaric oxygen was the main cause of bradycardia.Associated with heart rate decrement were supraventricular arrhythmias in 8 divers and ventricular arrhythmias in 5 divers.However,the occurrence of arrhythmia was infrequent,all being isolated premature beats.Transient ischemic ST-T changes in 6 divers occurred repeatedly during diving operations.On the second day postdive,the 12-lead routine ECG was all normal.It is the authors' view that the ST-T chang was due to stress reaction of the body induced by the combined effect of such stress factors as hyperbaric pressure per se,high partial pressure of oxygen,noise and the closed restricted chamber environment.

关 键 词：心动过缓 饱和潜水 动态心电图 

分 类 号：R540.41[医药卫生—心血管疾病]