Eftedal O S, Lydersen S, Brubakk A O
Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
Undersea Hyperb Med. 2007 Mar-Apr;34(2):99-105.
The presence of gas bubbles in the vascular system is often considered a sign of decompression stress and several studies in the existing literature have addressed the relationship between the amount of bubbles detected by ultrasound Doppler systems and the incidence of decompression sickness. The use of ultrasound imaging has some important advantages to Doppler systems, and here we have looked at the relationship between the amount of intravascular gas bubbles detected by ultrasound echocardiography and the incidence of signs and symptoms of decompression stress after 203 air dives. The results show that venous gas bubbles detected by ultrasound imaging is a highly sensitive, although not specific, predictor of such adverse effects of decompression. Our results agree with the published concordance between Doppler detected bubbles and decompression sickness. We conclude that bubble detection by ultrasonic scanning of the heart can be used as a tool to assess the safety of decompression procedures for air dives.
血管系统中出现气泡通常被认为是减压应激的一个迹象，现有文献中的几项研究探讨了超声多普勒系统检测到的气泡数量与减压病发病率之间的关系。超声成像相对于多普勒系统具有一些重要优势，在此我们研究了经超声心动图检测到的血管内气泡数量与203次空气潜水后减压应激体征和症状发病率之间的关系。结果表明，超声成像检测到的静脉气泡是减压此类不良反应的一个高度敏感但非特异性的预测指标。我们的结果与已发表的关于多普勒检测到的气泡与减压病之间的一致性相符。我们得出结论，通过心脏超声扫描检测气泡可作为评估空气潜水减压程序安全性的一种工具。
