Abstract:
:Avalanches are one of the major threats to life in high-mountain terrain and account every year for approximately 150 accidents causing injury or death in the United States alone. Every year avalanches cause significant property damages and a death toll of approximately 15 people in the United States. The specific characteristic of the avalanche accident is the extreme importance of getting to the buried victim as soon as, possible to improve survival. Approximately 40% of all buried victims survive 1 hour, and only about 20% survive 2 hours. Newer studies from Europe indicate that the initial survival probability is 92% at 15 minutes, 30% at 35 minutes, 27% at 90 minutes, and finally drops to 3% at 130 minutes. Unless prompt and efficient search and rescue are ensured, the prospect of buried victims is rather grim. Many tools have been used in the past to aid in retrieving buried victims including the avalanche cord, probing techniques, and in more recent time, the use of electronic beacon devices that allow search teams to locate the buried victim. The advent of satellite navigational aids (GPS, GLONASS) makes it possible to determine one's position with remarkable accuracy. We studied the degree to which the GPS satellite signal could penetrate through snow and be received by a commercially available GPS receiver. This information may lead to the development of an additional tool for precise and quick localization of buried victims in avalanche accidents and thus may substantially improve their survival by shortening the search time at the accident site. In this study we used a Motorola Traxar six-channel GPS receiver with amplifier unit connected to an antenna by means of a shielded coaxial cable. The antenna was buried under incremental covers of compact snow, and the reception of the GPS signal was measured at each burial depth: 5 cm, 15 cm, 25 cm, 35 cm, 45 cm, 55 cm, 1 m, and 1.5 m. The variables that were measured included signal quality, number of satellites received by the receiver, and their respective signal strength. A reference reading was taken from the GPS receiver above the testing site before measurements under snow cover were started. The satellite signals were received with good quality and precise readings up to a burial depth of 1 m. Under 1.5 m of snow the receiver was able to lock on only one satellite, making a positional reading impossible. The reception of the GPS signals under snow cover is possible and warrants further study directed toward the development of a search and rescue device using this technology.
journal_name
Wilderness Environ Medjournal_title
Wilderness & environmental medicineauthors
Stepanek J,Claypool DWdoi
10.1580/1080-6032(1997)008[0101:gsrusc]2.3.co;2subject
Has Abstractpub_date
1997-05-01 00:00:00pages
101-4issue
2eissn
1080-6032issn
1545-1534pii
S1080-6032(97)70020-6journal_volume
8pub_type
杂志文章abstract:OBJECTIVES:To identify the clinical and histopathological characteristics of patients who develop acute interstitial nephritis (AIN) following snake envenomation. METHODS:A retrospective analysis of patients diagnosed with snake envenomation-induced AIN from October 2013 to November 2014. RESULTS:After snake envenoma...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2015.12.009
更新日期:2016-06-01 00:00:00
abstract:INTRODUCTION:Sport helmet effectiveness in preventing traumatic brain injury (TBI) has been repeatedly questioned. This study assesses the effect of helmet use on risk of TBI and other types of head injury (OTHI) in alpine sports. METHODS:From 2012 to 2014, data on the injured population were collected by physicians i...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2017.11.007
更新日期:2018-06-01 00:00:00
abstract::Risk of injury in cold environments is related to a combination of athlete preparedness, preexisting medical conditions, and the body's physiologic response to environmental factors, including ambient temperature, windchill, and wetness. The goal of this section is to decrease the risk of hypothermia, frostbite, and n...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2015.09.006
更新日期:2015-12-01 00:00:00
abstract::We report the case of a previously healthy 32-year-old man presenting with severe headache on 2 separate expeditions to Cho Oyu (8201 m). No brain imaging was performed after the first expedition. On the second expedition, thrombosis of the superior sagittal sinus was detected. Investigations for hypercoagulable state...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/pr19-04.1
更新日期:2006-07-01 00:00:00
abstract::Bites by the European adder (Vipera berus) are a rare medical emergency in the UK with 20 to 50% of an estimated 50 to 200 cases per year necessitating treatment with antivenom. We present a case demonstrating both severe systemic and local effects necessitating out of hospital resuscitation, vasopressor support, and ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2018.08.002
更新日期:2019-03-01 00:00:00
abstract::Although catfish are found worldwide and commonly consumed in the southern United States, fatal infections from catfish are rare. Edwardsiella tarda is a bacterium known to cause gastrointestinal distress most commonly, but extraintestinal infections are a rarely considered danger for those acquiring, preparing, and c...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2019.04.004
更新日期:2019-09-01 00:00:00
abstract::Puerto Rico (PR) is home to 10 indigenous species of snake. Alsophis portorricensis has traditionally been considered harmless. In 1961, Hageman classified A portorricensis as somewhere between "venomous" and "nonvenomous." In 1966, Heatwole and Banuchi reported the only case found in the literature of a "venomous" bi...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2010.07.001
更新日期:2010-12-01 00:00:00
abstract:INTRODUCTION:Depending on their theatre of operation, French soldiers may potentially be exposed to scorpion stings and snakebites. Following the recommendations of a French military health service (FMHS) technical committee for envenomation, the FMHS provides antivenoms appropriate to each deployment. This work aimed ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2020.01.006
更新日期:2020-06-01 00:00:00
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journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(2002)013[0245:ssasii]2.0.co;2
更新日期:2002-01-01 00:00:00
abstract::A 67-year-old woman presented to a community emergency department in Orange County, CA, after she was stung by a scorpion identified as Centruroides limbatus from Central America. She developed local pain and systemic symptoms, including parasthesias, flushing, hypertension, and wheezing. Envenomation by this genus of...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(1999)010[0161:ebtslo]2.3.co;2
更新日期:1999-10-01 00:00:00
abstract:INTRODUCTION:The Kham Tibetans are one of several Tibetan ethnic subgroups living in the Kham area of China. Because studies on the high-altitude adaptation of the Kham people are scant, the main aim of this study is to investigate whether the response to hypoxia, especially polycythemia status, in the Kham Tibetans is...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2017.09.010
更新日期:2018-03-01 00:00:00
abstract::Hematotoxic snake bite is a leading cause of mortality in South India. However, it is rare for the emergency physician to encounter a patient with trauma associated with snakebite. Management of such a patient differs substantially from the routine management of either a trauma patient or a snakebite victim. A 59-y-ol...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2020.08.003
更新日期:2020-12-01 00:00:00
abstract::Treating skin disorders in wilderness settings is often challenging. In this report we describe common skin conditions affecting the feet of river runners on the Colorado River in Grand Canyon National Park. These conditions are frequently referred to by river runners with a catchall term, "tolio." Several skin disord...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2019.09.003
更新日期:2020-03-01 00:00:00
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journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2014.10.006
更新日期:2015-06-01 00:00:00
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journal_title:Wilderness & environmental medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.wem.2011.06.007
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to describe the range and types of medical and traumatic conditions encountered in land search and rescue operations in New Zealand. METHODS:Twenty months (May 2010 to December 2011) of land search and rescue operations were analyzed. Data on medical and traumatic conditions were ex...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2014.05.003
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVE:To help the Mountain Rescue Association of Scotland find the best protective mountain rescue casualty bag in cold and windy conditions. The study investigated how 3 different casualty bags (labeled Bag 1, Bag 2, and Bag 3) performed in a cold (-10 degrees C, dry bulb), windy (wind speed 3.0 m x s(-1)) environ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(2002)013[0036:acomrc]2.0.co;2
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:The incidence of fatal closed head injury (CHI) and nonfatal CHI causing an altered level of consciousness in avalanche victims is unknown. The purpose of this study was to assess the incidence and potential significance of CHI in avalanche-related deaths. METHODS:The records of the state medical examiner an...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(2001)012[0244:atachi]2.0.co;2
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVE:Thermal sensation and the physiological responses of women (follicular phase) exposed to 17 degrees C immersion for 120 minutes were investigated. METHODS:The subjects were divided into 2 groups by percent body fat (low fat [LF] = 21% +/- 2% [mean +/- SD] vs high fat [HF] = 30% +/- 3%). A 2-way analysis of v...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(2000)011[0157:tsasud]2.3.co;2
更新日期:2000-10-01 00:00:00
abstract::There are many tales describing ferocious schools of piranha attacking humans, but there are few scientific data supporting such behavior. The very few documented instances of humans attacked and eaten by piranha schools include 3 that occurred after death by other causes (eg, heart failure and drowning). These predac...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/1080-6032(2003)14[249:paohis]2.0.co;2
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVE:Cuzco, Peru, is host to a dangerous mix of high altitude and rapid access from low elevation, which results in a high prevalence of acute mountain sickness (AMS). Thus, it is important that travelers entering Cuzco understand the basics of AMS. To this end, we assessed travelers' awareness of AMS, especially ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/06-weme-or-013r.1
更新日期:2007-04-01 00:00:00
abstract::Anaphylaxis is a medical emergency requiring prompt action to prevent death from cardio-respiratory collapse. It can be a biphasic, unpredictable, and challenging reaction to deal with even in a hospital environment. The wilderness environments afforded by expeditions, remote health posts, and military exercises pose ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2011.12.002
更新日期:2012-03-01 00:00:00
abstract::A 74-year-old previously healthy woman was bitten by a hump-nosed pit viper (Hypnale hypnale) at dusk causing incoagulable blood lasting for 6 days. Further, she developed ecchymoses over her forearms, upper arms, hands, and lower back on day 4 after the snakebite, and microangiopathic hemolytic anemia (MAHA). Feature...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2017.05.005
更新日期:2017-09-01 00:00:00
abstract:INTRODUCTION:Clinical and bacteriological features of cobra (Naja) bites are still relatively unknown in Vietnam. This study aimed to characterize the clinical and bacteriological characteristics of local wounds in patients with presumed Naja spp bite, as well as their antibiotic treatment. METHODS:A cross-sectional s...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2020.01.002
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:Little is known about health care provider interest, knowledge, and beliefs regarding the health effects of human-induced environmental degradation (HIED). A survey was created and distributed to better characterize health provider beliefs about the adverse health effects of HIED. METHODS:An invitation to pa...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1580/08-WEME-OR-222R1.1
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVE:The purposes of this experiment were to determine the repeatability of acute mountain sickness (AMS), AMS symptoms, and physiological responses across 2 identical hypoxic exposures. METHODS:Subjects (n = 25) spent 3 nights at simulated altitude in a normobaric hypoxia chamber: twice at a partial pressure of ...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2013.11.007
更新日期:2014-06-01 00:00:00
abstract::Families are traveling with their children in increasing frequency. Travel to Asia offers children many opportunities to learn about new cultures and history. It also offers the potential for exposure to numerous infectious agents not commonly encountered in the United States. Families must begin to prepare for travel...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章,评审
doi:10.1580/06-WEME-RA-026R2.1
更新日期:2007-10-01 00:00:00
abstract::The use of tranexamic acid (TXA) in the treatment of trauma patients was relatively unexplored until the landmark Clinical Randomisation of an Antifibrinolytic in Significant Haemorrhage-2 (CRASH-2) trial in 2010 demonstrated a reduction in mortality with the use of TXA. Although this trial was a randomized, double-bl...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章,评审
doi:10.1016/j.wem.2016.12.006
更新日期:2017-06-01 00:00:00
abstract::Ticks are versatile vectors of infectious diseases and transmit a broad range of pathogens, including bacteria, viruses, and parasites. Ticks harbor pathogens without infection and share pathogens with other ticks while feeding together on a host. The primary objective of this review is to identify tickborne viral pat...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章,评审
doi:10.1016/j.wem.2020.06.011
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Minimal data exist regarding the activity, membership, training, and medical oversight of search and rescue (SAR) teams. OBJECTIVE:Our objective was to describe these characteristics in the Intermountain West SAR organizations. METHODS:A contact list was generated and electronic surveys were sent to SAR of...
journal_title:Wilderness & environmental medicine
pub_type: 杂志文章
doi:10.1016/j.wem.2013.08.002
更新日期:2013-12-01 00:00:00