论文部分内容阅读
本文用动态心电图观察了8名潜水员在80m氦氮饱和—100m巡回潜水过程中心电的变化,发现24h平均心率有明显改变,心率降低在饱和停留及减压阶段分别为15.5％及19.7％,减压结束后心率立刻回升,并发现心率的降低与氧分压增加密切相关,故强调高压氧为引起心动过缓的主要原因。8名潜水员出现室上性心律紊乱,5名潜水员出现室性心律紊乱。心律紊乱的出现率较潜水前略为增高,且均为偶发性或孤立性早搏。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,潜水后第二天的12导联常规心电图全部正常。讨论认为此ST-T改变可能系高气压、高分压氧、噪音及狭窄的密闭环境等应激因子综合影响所造成的应激反应。
In this paper, the changes of electrocardiogram (ECG) of 8 divers during the 120m rover-100m roving dive were observed by Holter monitoring. The mean heart rate was significantly changed at 24 h, and the heart rate was 15.5% and 19.7% respectively during the period of saturation stop and decompression Heart rate immediately after the pressure rise and found that the decrease of heart rate is closely related with the increase of partial pressure of oxygen, it is emphasized that hyperbaric oxygen is the main reason causing bradycardia. Eight divers showed supraventricular arrhythmias and five divers had ventricular arrhythmias. The incidence of arrhythmia slightly higher than before diving, and are occasional or isolated premature beats. Six divers in the whole process of diving operations, repeated short-term ischemic ST-T changes, the second day after diving the 12-lead conventional ECG are all normal. Discussion that this ST-T changes may be high pressure, high partial pressure oxygen, noise and tight confined environment and other stress factors caused by the combined effect of stress response.