| 模拟氦氮氧三元气100m潜水对家兔心电图的影响 |
| 投稿时间：2014-09-26 修订日期：2014-10-09 点此下载全文 |
| 引用本文：肖婵娟,李洋洋,刘洪涛,张延猛,石路.模拟氦氮氧三元气100m潜水对家兔心电图的影响[J].医学研究杂志,2015,44(4):123-125,151 |
| DOI：
10.11969/j.issn.1673-548X.2015.04.034 |
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| 中文摘要:目的 研究氦氮氧三元气潜水对心电图和心脏功能的作用。 方法 8只家兔在高压动物舱中模拟潜水,逐渐加压至100m深度再减压返回海平面过程中,分别在加压前(0m),最大深度100m,减压过程中的30、20、10m和出舱后(0m)测试家兔的心电图。 结果 各阶段的心率与0m加压前的心率相比,均无明显变化。在潜水过程中,有4只家兔分别出现过窦性心律不齐,但回到常压后恢复正常。另外,在减压到20m和10m深度时,PR间期较潜水前有明显延长,且 20m时的R波波幅和10m时的P波波幅均减小,但回到常压后各指标均恢复正常。 结论 在高压动物舱内的氦氮氧三元气潜水对心电图有可逆性影响,但并没有严重影响心脏活动。本研究表明了氦氮氧三元气潜水是相对安全和可行的。 |
| 中文关键词:氦氮氧潜水 心电图 心率 |
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| Effects of Simulated Trimix Diving on the Electrocardiogram of Rabbits at a Maximal Depth of 100 Meters |
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| Abstract:Objective To investigate the effects of trimix diving on the electrocardiogram and cardiac function. Methods Simulated trimix diving were performed on eight rabbits in a high-pressure animal cabin with progressive increase and decrease of the diving depth and a maximum depth of 100 meters. Electrocardiogram was measured before diving, during diving at depths of 100, 30, 20 and 10m, and immediately after diving. Results No heart rate difference was found among the conditions of before, during and after diving. Four rabbits showed sinus arrhythmia during diving, but these arrhythmias restored to sinus rhythm after diving. The P-R intervals significantly increased at diving depths of 20 and 10m. The R wave amplitudes at depth of 20m and the P wave amplitudes at 10m decreased significantly, but these changes restored to normal after animals returning to an atmospheric pressure. Conclusion Trimix diving in high-pressure animal cabin has a reversible influence on the electrocardiogram, but does not serious affect the cardiac activities. The study suggests that trimix diving is relatively safe and feasible. |
| keywords:Trimix diving Electrocardiogram Heart rate |
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