Main Menu
Join Undercurrent on Facebook

The Private, Exclusive Guide for Serious Divers Since 1975 | |
For Divers since 1975
The Private, Exclusive Guide for Serious Divers Since 1975
"Best of the Web: scuba tips no other
source dares to publish" -- Forbes
X
May 2017    Download the Entire Issue (PDF) Available to the Public Vol. 32, No. 5   RSS Feed for Undercurrent Issues
What's this?

Skin Bends? A New Study Suggests Serious Ramifications!

from the May, 2017 issue of Undercurrent   Subscribe Now

Decompression sickness (DCI) can present itself in many different guises, with symptoms varying from slight mottling of the skin or subcutaneous rash to full neurological symptoms. While the latter is necessarily thought of as a serious health problem, the former is often dismissed as "only a skin bend." Forget the "only."

A skin bend most often manifests itself as mottling on the upper torso, upper arms, and buttocks in varying degrees of severity. There is no generally accepted explanation of how gas coming out of solution is related to these skin changes, but explanations include 1) the occurrence of gas bubbles in subcutaneous tissues; 2) the obstruction of subcutaneous arteries with bubbles bypassing the lungs (as with PFO -- patent foramen ovale); 3) an inflammatory reaction to bubbles presenting locally in the tissues; or 4) bubbles causing injury to the interior surface of blood vessels at remote locations.

Recently a Dutch research team has presented a novel hypothesis that links these skin changes to subclinical brain changes caused by a cerebral arterial gas embolism (AGE). After experiments with anesthetized pigs, they hypothesized that the skin mottling might be the result of brain lesions caused by gas bubbles.

While this is still only a hypothesis, DAN, on it's the divelab web page, thinks it's worth considering the practical implications. DAN injury data analysis indicates that at least one-fifth of divers with skin bends also have neurological symptoms.

The upshot is that any diver exhibiting symptoms of a skin bend should also be evaluated neurologically. Repeated episodes of skin bends, although seemingly innocuous, should be taken as a possible indicator of a subclinical brain injury. Don't dismiss it. Take it seriously.

(Source: DAN/Kemper - Diving Hyperbaric Medicine.)

I want to get all the stories! Tell me how I can become an Undercurrent Online Member and get online access to all the articles of Undercurrent as well as thousands of first hand reports on dive operations world-wide


Find in  

| Home | Online Members Area | My Account | Login | Join |
| Travel Index | Dive Resort & Liveaboard Reviews | Featured Reports | Recent Issues | Back Issues |
| Dive Gear Index | Health/Safety Index | Environment & Misc. Index | Seasonal Planner | Blogs | Free Articles | Book Picks | News |
| Special Offers | RSS | FAQ | About Us | Contact Us | Links |

Copyright © 1996-2021 Undercurrent (www.undercurrent.org)
3020 Bridgeway, Ste 102, Sausalito, Ca 94965
All rights reserved.

fc