Effect of hyperbaric air exposure with prolonged oxygen inhalation during decompression on the cardiovascular function in divers.

IF 0.7 4区医学 Q4 MARINE & FRESHWATER BIOLOGY

Undersea and Hyperbaric Medicine Pub Date : 2025-02-01

Liu Wenwu, Zhang Tingting, Yin Lijun, Xu Jiajun, Yu Xuhua, Wang Shifeng

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引用次数: 0

Abstract

Objective: This study aimed to evaluate the effect of prolonged oxygen inhalation during decompression on the cardiovascular function in divers with hyperbaric air exposure.

Methods: Eight divers were pressurized to 400 kPa and then depressurized 30 minutes later. During the decompression, the time of oxygen breathing was prolonged at different depths. The cardiac, carotid, and brachial arterial functions were evaluated by ultrasonography immediately before and after exposure and then compared.

Results: After hyperbaric exposure, diastolic blood pressure increased significantly, heart rate reduced markedly, but systolic blood pressure tended to reduce. The peak systolic velocity and end diastolic velocity of the common carotid artery reduced markedly, but its resistance index slightly increased, and the diameter of the brachial artery tended to increase. In addition, the end-diastolic volume, cardiac output, E wave, and A wave of the heart reduced markedly, but the flow velocity of the pulmonary artery tended to reduce.

Conclusion: Hyperbaric air exposure at 400 kPa with prolonged oxygen inhalation during decompression mildly affects divers' cardiovascular function.

本刊更多论文

减压过程中暴露于高压空气并长时间吸氧对潜水员心血管功能的影响。

目的：探讨减压过程中长时间吸氧对暴露于高压空气中的潜水员心血管功能的影响。方法：8名潜水员加压至400kpa， 30分钟后再减压。在减压过程中，不同深度的氧气呼吸时间有所延长。在暴露前后立即进行心脏、颈动脉和肱动脉功能的超声检查，并进行比较。结果：高压暴露后，舒张压明显升高，心率明显降低，收缩压有降低的趋势。颈总动脉收缩期峰值速度和舒张末期速度明显降低，但其阻力指数略有升高，肱动脉内径有增大的趋势。舒张末期心脏容积、心输出量、E波、A波明显减少，但肺动脉流速有降低的趋势。结论：减压时暴露于400kpa高压空气并长时间吸氧对潜水员心血管功能有轻微影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Undersea and Hyperbaric Medicine 医学-海洋与淡水生物学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Undersea and Hyperbaric Medicine Journal accepts manuscripts for publication that are related to the areas of diving research and physiology, hyperbaric medicine and oxygen therapy, submarine medicine, naval medicine and clinical research related to the above topics. To be considered for UHM scientific papers must deal with significant and new research in an area related to biological, physical and clinical phenomena related to the above environments.