Showing posts with label Search and Rescue. Show all posts
Showing posts with label Search and Rescue. Show all posts

Tuesday, July 8, 2008

More from the Search and Rescue front:

This was just posted to our Wilderness Squad mailing list and is important enough that it should be brought to light for the general public.  Not to mention, it's more along the lines of my usual posts.

First a little background:  Two serious conditions that one can face when traveling to high altitude (8000+ feet) locations are known as HAPE and HACE, High Altitude Pulmonary Edema and High Altitude Cerebral Edema respectively.  Both are conditions that are caused by the body's reaction to an increase in altitude without proper acclimitization. 

HAPE is the accumulation of fluid outside the blood vessels in your lungs which leads to shortness of breath, coughing (and pink, foamy sputum), increased heart rate and decreased oxygen levels in the bloodstream and can occur within a few hours of ascent. 

HACE is the swelling of the brain tissue due to the same fluids leaking from the bloodstream into the brain.  Symptoms include headache, decrease in alertness and coordination, weakness, loss of consciousness and coma.  HACE is most likely to occur after a week or more at altitude, but can occur as rapidly as within a few days.

Both are serious and can be fatal if not treated.  The two easiest forms of treatment are rapid descent and administration of oxygen.

Rick Kovar can be proud.  I paid attention in class (which is good since I was serving as the Medical Overhead person on one of the team's High Altitude trainings.)

Proper acclimitization helps in preventing both HAPE and HACE.  Basically once you get above 8,000 to 10,000 feet, you should "climb high, sleep low."  Don't sleep more than 1,000 feet above where you slept the night before.  It's also best to stay a few days at a base camp to let your body become used to the altitude before starting any strenuous activities such as hiking.

So, with all the wonderfulness that comes with altitude sicknesses behind us, let's move on to the reason behind this post:

Excerpts from the Western Journal of Medicine, 1981 February 134(2), pages 173-4:


High Altitude Flatus Expulsion (HAFE)

To the Editor: We would like to report our observations upon a new gastrointestinal syndrome which we will refer to by the acronym HAFE (high altitude flatus expulsion). This phenomenon was most recently witnessed by us during an expedition in the San Juan Mountains of southwestern Colorado, with similar experiences during excursions past. The syndrome is strictly associated with ascent, and is characterized by an increase in both the volume and the frequency of flatus, which spontaneously occurs while climbing to altitudes of 11,000 feet or greater. The eructations (known to veteran backpackers as “Rocky Mountain barking spiders”) do not appear to vary with exercise, but may well be closely linked to diet…

While not as catastrophic as barotraumas nor as debilitating as HAPE, HAFE nonetheless represents a significant inconvenience for those who prefer to hike in company… At present, we can advise victims that the offense is more sociologic than physiologic.

HAFE should be added to the growing list of medical disorders that are associated with exposure to high altitude. We are planning a prospective study for the summer of 1981.

Paul Auerbach, MD and York E. Miller, MD
You really have got to admire some people and their creative excuses to get away from the office.

A peek into Search and Rescue

Last weekend's plans, for what they were worth went out the window. I don't mind it a bit. It was actually better than the boredom that I was enduring starting on Friday afternoon.

On Saturday, my Search and Rescue team got called out to Yolo County to search for a missing 77 year old woman that was discovered missing on Thursday. She was last seen at on CA-16 after leaving Cache Creek Casino. After two full days searching in 100+ degree heat, our team members were burnt out and new crews from other teams were slated to arrive starting at 0600 on Monday. A third call went out to our team requesting members who had not previously responded. Later that night, another call went out cancelling the call, stating that the subject had been found deceased.

While not the outcome that we had hoped and worked so hard for, we had finally found her and brought some closure for the family and for the personnel that had worked so hard for the past couple of days.

One of the harder things that a searcher faces is the lack of closure that we face in some searches. A subject will go missing, either on purpose or accidentally, and we will put many, many man-hours into locating them. Clues may be found, either physical articles that the subject has left behind, such as a jacket, a food wrapper or a cigarette butt. Witnesses may come forward claiming to have seen the person at this or that location. Footprints may be found and confirmed to be matching those of our subject. The dogs may have hit a definite trail and followed it to where it disappears. The subject's profile will have already been compared to statistical information showing what they are most likely to do, what direction they are most likely to travel and the clues we have found will be compared to that to help us decide if the subject is acting "normally."

Even though we have all this information, the subject can still remain missing; their location a mystery, as though they have been plucked from the planet. The search may carry on for days, weeks. It may have to be suspended, but it will not be stopped until the subject has been located. It's these "suspended" searches that can really wear on you. Fortunately the one last weekend did not have to be indefinitely suspended. Though our subject was deceased, she was located.

You will hear about the local Sheriff's department or the coroner continuing the investigation to determine cause and time of death, but what you won't ever hear is that the SAR teams involved are still doing their investigation as well. Regardless of the outcome, maps, travel routes, terrain features, evidence locations, sightings, resource deployment and much more will all be re-evaluated. The entire search will be evaluated to determine what went right, what didn't go so well, what we could have done better. We will learn what we can from the information that we have collected so we can hopefully do a better job the next time.

One thing that many people don't realize is that as a member of a SAR team, while we are out on a search, you may actually have more information about the case as a whole than we do. That is to prevent us from forming theories about where the subject is or where they were most likely going. If we do that, then we may not focus on our particular search assignment. If a searcher's assignment is in a low priority area heading away from the last known direction of travel and they're 14 hours into a search, their mind may not be fully focused on what they're doing if they've been convinced that the subject was last seen three miles behind them heading in the opposite direction. Fatigue, both mental and physical will come in to play. They won't be as inclined to climb up that steep embankment and dig through the poison oak. It would be much easier to circumnavigate the thicket and try to look into it. After all, the subject is miles away from here. The better option is to give the searchers their assignment and the information that pertains to completing that assignment. That way they can focus directly on their job at hand and not have to filter out all the unnecessary and distracting information.

Also, we are generally not privy to any information about the case after our assignments have been completed and we are released from the scene. The information that we get is usually from the same sources as the rest of the world. We watch the news and read the papers. If any of us find anything, we usually email the entire team to share what we find.

One case that has been bothering me and has constantly been in the back of my mind is a high-profile case that made the news several times last year. The subject's name is Nina Reiser. She went missing after dropping her children off at her estranged husband's house and was not heard from since. Several pieces of evidence were found to indicate foul-play and her husband Hans Reiser was convicted of first degree murder even though her body had not been found. We had spent several days at different times searching the Oakland hills for evidence that may show us where she could have been buried, but continued to come up empty handed.

I ran across this news report today while searching for information about last weekend's search:

http://cbs5.com/search/Link.ashx?R=http%3a%2f%2fcbs5.com%2fvideo%2f%3fid%3d36302%40kpix.dayport.com

This helps bring a lot of thoughts to an end, suspicions confirmed and denied. I emailed the link to the team not that long ago. I already have had people respond back to me with a "thank you, I've been thinking about that search for a while now, wondering if they ever found anything more." I know that I'm not alone in these thoughts and concerns.

Now that little part in the back of my mind can rest, knowing that Nina's not lost any more.