Beale Peter, Kitchen Levi, Graf W R, Fenton M E
Naval Hospital Guam.
Undersea Hyperb Med. 2019;46(2):211-215.
The complete pathophysiology of decompression illness is not yet fully understood. What is known is that the longer a diver breathes pressurized air at depth, the more likely nitrogen bubbles are to form once the diver returns to surface [1]. These bubbles have varying mechanical, embolic and biochemical effects on the body. The symptoms produced can be as mild as joint pain or as significant as severe neurologic dysfunction, cardiopulmonary collapse or death. Once clinically diagnosed, decompression illness must be treated rapidly with recompression therapy in a hyperbaric chamber. This case report involves a middle-aged male foreign national who completed three dives, all of which incurred significant bottom time (defined as: "the total elapsed time from the time the diver leaves the surface to the time he/she leaves the bottom)" [2]. The patient began to develop severe abdominal and back pain within 15 minutes of surfacing from his final dive. This case is unique, as his presentation was very concerning for other medical catastrophes that had to be quickly ruled out, prior to establishing the diagnosis of severe decompression illness. After emergency department resuscitation, labs and imaging were obtained; abdominal decompression illness was confirmed by CT, revealing a significant abdominal venous gas burden.
减压病的完整病理生理学尚未完全明了。已知的是,潜水员在深度呼吸压缩空气的时间越长,一旦返回水面,形成氮气泡的可能性就越大[1]。这些气泡对身体有不同的机械、栓塞和生化作用。产生的症状可能轻至关节疼痛,也可能严重至严重神经功能障碍、心肺衰竭或死亡。一旦临床诊断,减压病必须在高压舱内迅速进行再加压治疗。本病例报告涉及一名中年外国男性,他完成了三次潜水,所有潜水的水底停留时间都很长(定义为:“潜水员离开水面到离开水底的总经过时间”)[2]。患者在最后一次潜水浮出水面后15分钟内开始出现严重的腹部和背部疼痛。该病例很独特,因为在确诊严重减压病之前,他的症状很像是其他必须迅速排除的医疗急症。经过急诊科复苏后,进行了实验室检查和影像学检查;CT证实为腹部减压病,显示腹部静脉有大量气体。