Wilderness Medical Society Clinical Practice Guidelines for Medical Direction of Search and Rescue Teams.

The Wilderness Medical Society convened a panel to review available evidence supporting practices for medical direction of search and rescue teams. This panel included of members of the Wilderness Medical Society Search and Rescue Committee, the National Association of EMS Physicians Wilderness Committee, and leadership of the Mountain Rescue Association. Literature about definitions and terminology, epidemiology, currently accepted best practices, and regulatory and legal considerations was reviewed. The panel graded available evidence supporting practices according to the American College of Chest Physicians criteria and then made recommendations based on that evidence. Recommendations were based on the panel's collective clinical experience and judgment when published evidence was lacking.

Wilderness Medical Society Clinical Practice Guidelines on Water Treatment for Wilderness, International Travel, and Austere Situations: 2024 Update.

To provide guidance to medical providers, wilderness users, and travelers, the Wilderness Medical Society convened an expert panel to develop evidence-based guidelines for treating water in situations where the potability of available water is not assured, including wilderness and international travel, areas impacted by disaster, and other areas without adequate sanitation. The guidelines present the available methods for reducing or eliminating microbiological contamination of water for individuals, groups, or households; evaluation of their effectiveness; and practical considerations. The evidence base includes both laboratory and clinical publications. The panel graded the recommendations based on the quality of supporting evidence and the balance between benefits and risks/burdens according to the criteria published by the American College of Chest Physicians.

Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Frostbite: 2024 Update.

The Wilderness Medical Society convened an expert panel to develop a set of evidence-based guidelines for the prevention and treatment of frostbite. We present a review of pertinent pathophysiology. We then discuss primary and secondary prevention measures and therapeutic management. Recommendations are made regarding each treatment and its role in management. These recommendations are graded on the basis of the quality of supporting evidence and balance between the benefits and risks or burdens for each modality according to methodology stipulated by the American College of Chest Physicians. This is an updated version of the guidelines published in 2019.

Wilderness Medical Society Clinical Practice Guidelines for Spinal Cord Protection: 2024 Update.

The Wilderness Medical Society reconvened an expert panel to update best practice guidelines for spinal cord protection during trauma management. This panel, with membership updated in 2023, was charged with the development of evidence-based guidelines for management of the injured or potentially injured spine in wilderness environments. Recommendations are made regarding several parameters related to spinal cord protection. These recommendations are graded based on the quality of supporting evidence and balance the benefits and risks/burdens for each parameter according to American College of Chest Physicians methodology. Key recommendations include the concept that interventions should be goal-oriented (spinal cord/column protection in the context of overall patient and provider safety) rather than technique-oriented (immobilization). An evidence-based, goal-oriented approach excludes the immobilization of suspected spinal injuries via rigid collars or backboards.

Wilderness Medical Society Clinical Practice Guidelines for the Treatment of Acute Pain in Austere Environments: 2024 Update.

The Wilderness Medical Society (WMS) convened an expert panel to develop evidence-based guidelines for the management of pain in austere environments. Recommendations are graded based on the quality of supporting evidence as defined by criteria put forth by the American College of Chest Physicians. This is an update of the 2014 version of the "WMS Practice Guidelines for the Treatment of Acute Pain in Remote Environments" published in Wilderness & Environmental Medicine 2014; 25:41-49.

Wilderness Medical Society Clinical Practice Guidelines for Treatment of Eye Injuries and Illnesses in the Wilderness: 2024 Update.

A panel convened to develop an evidence-based set of guidelines for the recognition and treatment of eye injuries and illnesses that may occur in the wilderness. These guidelines are meant to serve as a tool to help wilderness providers accurately identify and subsequently treat or evacuate for a variety of ophthalmologic complaints. Recommendations are graded based on the quality of their supporting evidence and the balance between risks and benefits according to criteria developed by the American College of Chest Physicians.

Wilderness Medical Society Clinical Practice Guidelines for the Treatment and Prevention of Drowning: 2024 Update.

The Wilderness Medical Society convened a panel to review available evidence supporting practices for acute management of drowning in out-of-hospital and emergency care settings. Literature about definitions and terminology, epidemiology, rescue, resuscitation, acute clinical management, disposition, and drowning prevention was reviewed. The panel graded available evidence supporting practices according to the American College of Chest Physicians criteria and then made recommendations based on that evidence. Recommendations were based on the panel's collective clinical experience and judgment when published evidence was lacking. This is the second update to the original practice guidelines published in 2016 and updated in 2019.

Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Heat Illness: 2024 Update.

The Wilderness Medical Society (WMS) convened an expert panel in 2011 to develop a set of evidence-based guidelines for the recognition, prevention, and treatment of heat illness. The current panel retained 5 original members and welcomed 2 new members, all of whom collaborated remotely to provide an updated review of the classifications, pathophysiology, evidence-based guidelines for planning and preventive measures, and recommendations for field- and hospital-based therapeutic management of heat illness. These recommendations are graded based on the quality of supporting evidence and the balance between the benefits and risks or burdens for each modality. This is an updated version of the WMS clinical practice guidelines for the prevention and treatment of heat illness published in Wilderness & Environmental Medicine. 2019;30(4):S33-S46.

Regional Anesthesia in the Austere Environment: Lessons Learned from Current Out-of-Hospital Practice.

INTRODUCTION: Pain management for trauma in the extreme environment is vital for both casualty comfort and aiding safe extrication. However, adequate pain management in a resource-limited environment can be challenging and is often limited. We conducted a scoping review of the use of regional anesthesia in the prehospital environment, evaluating which regional anesthetic procedure was performed for various indications, their efficacy, and the type of healthcare provider delivering the anesthetic. METHODS: A PRISMA-guided systematic literature review was conducted of Medline, Embase, and Cochrane databases for studies reporting the use of regional anesthesia in the prehospital environment published before June 30, 2022. RESULTS: Thirty studies met the criteria and were included in the review. The most common types of regional anesthesia were fascia-iliaca compartment block (n = 317, from 12 studies) and femoral nerve block (n = 210, from 8 studies), along with various other blocks for a range of indications. These blocks had good efficacy and a low-risk profile and could be delivered by a wide range of healthcare providers. CONCLUSIONS: Regional anesthesia is an effective and non-resource-heavy pain management tool in prehospital environments, which may be applicable to austere settings. It can cover a wide range of injuries and can avoid systemic complications for casualties that may already be challenging to manage in out-of-hospital settings. Additionally, regional anesthesia can be effectively delivered by a wide range of providers. This review provides a holistic summary of pain management using regional anesthesia in the prehospital environment, with a discussion on its potential use in more extreme settings.

Resident Wilderness Medicine Curriculum Consensus Guidelines: Summarization and Recommendations for Resident Rotations in Wilderness Medicine.

INTRODUCTION: Wilderness medicine education is one of the fastest growing facets of both graduate and undergraduate medical education. Currently, there are curriculum guidelines for both student electives and fellowships in wilderness medicine. However, there are no guidelines for resident elective curricula. The student/resident education committee of the Wilderness Medical Society (WMS) convened a task force to develop curriculum guidelines for these electives. METHODS: A survey of previously described core wilderness medicine topics was sent to a cohort of educators involved in wilderness medicine resident electives. They were asked to rank topics on the basis of their importance of being included on a Likert scale. Multivariate analysis of medians was used to distinguish among topics to determine which topics were voted most and least necessary for a curriculum. RESULTS: Of the database members contacted, 35 responded to the survey. The described current state of residency electives was that 16 institutions offered their own elective (46%). For subject preferences, multivariate analysis of scoring distribution medians demonstrated a significantly higher pattern of responses (P<0.01) for subjects with a median of 3 (must include) than for the lowest-scoring subjects that had a median of 1 (can include). Every topic was rated "must" by at least 1 respondent. Topics were further subdivided into an educational framework reflecting a common approach to education of wilderness medicine fellows focusing on education, leadership, knowledge, and skills. CONCLUSIONS: There was a wide variety in the ranking of topics; however, there were multiple topics on which a consensus for inclusion was reached. These topics are organized and presented here as a suggested curriculum by the student/resident education committee of the WMS.

Implementation of a Specialty Society‒Sponsored Wilderness Medicine Fellowship Match.

INTRODUCTION: Previously, wilderness medicine (WM) fellowships offered spots to applicants using an offer date. Due in part to increases in the number of WM fellowships and applicants, in 2021, the WM program directors (PDs) agreed to conduct the first WM fellowship match through the Wilderness Medical Society graduate medical education committee. This article outlines the process used and demonstrates its feasibility. METHODS: To create an independent matching process, a simulation was performed using imaginary programs and participants. Using the same algorithm utilized by the National Resident Matching Program, this process was completed manually and by computer to ensure accuracy. The PDs shared an email with the applicants they interviewed and submitted their names. Applicants registered for the match and generated a match list. The PDs then submitted a rank list of applicants they interviewed through a similar Google form. These lists were used to run the matching algorithm both manually and by computer. Any programs that did not "fill" or applicants who did not "match" were contacted to participate in a secondary match. Following the match, a survey was sent to PDs and participants for process improvement. RESULTS: The match filled 11 of 14 participating programs and 15 of 19 applicants. The results obtained via a computer algorithm were consistent with multiple human validations. The survey results were mostly positive, with 2 neutral responses and no negative responses. CONCLUSIONS: The inaugural WM fellowship match was successful in matching the majority of programs and participants and was well-received by both directors and applicants.

Prevention and Treatment of Nonfreezing Cold Injuries and Warm Water Immersion Tissue Injuries: Supplement to Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Frostbite.

We convened an expert panel to develop evidence-based guidelines for the evaluation, treatment, and prevention of nonfreezing cold injuries (NFCIs; trench foot and immersion foot) and warm water immersion injuries (warm water immersion foot and tropical immersion foot) in prehospital and hospital settings. The panel graded the recommendations based on the quality of supporting evidence and the balance between benefits and risks/burdens according to the criteria published by the American College of Chest Physicians. Treatment is more difficult with NFCIs than with warm water immersion injuries. In contrast to warm water immersion injuries that usually resolve without sequelae, NFCIs may cause prolonged debilitating symptoms, including neuropathic pain and cold sensitivity.

Gender Distribution Associated With the Journal Wilderness & Environmental Medicine.

INTRODUCTION: Publication and peer review are fundamental to career advancement in science and academic medicine. Studies demonstrate that women are underrepresented in science publishing. We evaluated the gender distribution of contributors to Wilderness & Environmental Medicine (WEM) from 2010 through 2019. METHODS: We extracted author data from ScienceDirect, reviewer data from the WEM Editorial Manager database, and editorial board data from journal records. Gender (female and male) was classified using automated probability-based assessment with Genderize.io software. RESULTS: A total of 2297 unique authors were published over the 10-y span, generating 3613 authorships, of which gender was classified for 96% (n=3480). Women represented 26% (n=572) of all authors, which breaks down to 22% of all, 19% of first, 28% of second, and 18% of last authorships. Women represented 20% of peer reviewers (508/2517), 20% of reviewers-in-training (19/72), and 16% of editorial board members (7/45). The proportion of female authors, first authors, and reviewers increased over time. Women received fewer invitations per reviewer than men (mean 2.1 [95% CI 2.0-2.3] vs 2.4 [95% CI 2.3-2.5]; P=0.004), accepted reviews at similar rates (mean 73 vs 71%; P=0.214), and returned reviews 1.4 d later (mean 10.4 [CI 9.5-11.3] vs 9.0 d [95% CI 8.5-9.6]; P=0.005). CONCLUSIONS: While female representation increased over the study period, women comprise a minority of WEM authors, peer reviewers, and editorial board members. Gender equity could be improved by identifying and eliminating barriers to participation, addressing any potential bias in review processes, implementing strategies to increase female-authored submissions, and increasing mentorship and training.

The Intersection of Telemedicine and Wilderness Care: Past, Present, and Future.

Wilderness medicine and telemedicine seemingly exist at opposite ends of the clinical continuum. However, these 2 specialties share a common history and the literature abounds with examples of successful deployment of telemedicine to resource limited settings. The recent widespread adoption of telemedicine has important ramifications for wilderness providers. Telemedicine is inherently reliant on some sort of technology. There is a wide spectrum of complexity involved, but in general these systems rely on a hardware component, a software component, and a network system to transmit information from place to place. Today, connectivity is nearly ubiquitous through access to cellular networks, Wi-Fi, or communication satellites. However, bandwidth, defined as the amount of data which can be transmitted through a given connection over time, remains a limiting factor for many austere settings. Telemedicine services are typically organized into 4 categories: 1) live/interactive; 2) store and forward; 3) remote patient monitoring; and 4) mHealth. Each of these categories has an applicable wilderness medicine use case which will be reviewed in this paper. Though the regulatory environment remains complex, there is enormous potential for telemedicine to enhance the practice of wilderness medicine. Drones are likely to transform wilderness medicine supply chains by facilitating delivery of food, shelter, and medicines and are able to enhance search and rescue efforts. Remote consultations can be paired with remote patient monitoring technology to deliver highly specialized care to austere environments. Early feasibility studies are promising, but further prospective data will be required to define future best practices for wilderness telemedicine.

Professional Outcomes and Satisfaction Among Graduate Medical Education Wilderness Medicine Fellowship Alumni in the United States.

INTRODUCTION: Wilderness medicine (WM) graduate medical education (GME) fellowships were established in 2003. Outcomes and satisfaction of US WM GME fellowship alumni can inform prospective applicants and program directors of the strengths of fellowships and professional gaps in them. METHODS: A 34-question Qualtrics survey was emailed to 111 alumni from 17 institutions listed in the Wilderness Medical Society's GME database in May 2019. Professional service, scholarship, and satisfaction were queried. Results are represented as percent response (n=answered affirmative) based on the number of respondents per question. RESULTS: The survey response rate was 41% (n=46); 67% reported (n=31) Fellowship of the Academy of Wilderness Medicine recognition. Within the last 5 y, 71% (n=32) reported publications in WM. Free text entry questions had 78% (n=28) describe improved clinical skills, and 68% (n=26) were exposed to new career choices in fellowship. Those who rated exposure to a variety of WM knowledge and skills highly rated the overall fellowship experience higher (P<0.001), as did those reporting a higher number of WM publications (P=0.023). Nearly half, 48% (n=21), felt they could hold their current position without fellowship training. In hindsight, 76% (n=34) would follow the same professional path. CONCLUSIONS: WM GME fellowship alumni reported high rates of professional engagement and scholarly productivity in the subspecialty. Responding alumni overwhelmingly rated the fellowship experience positively. Fellowships that ensure a wide exposure to experiences and foster scholarly productivity are more likely to yield professionally satisfied graduates.

Urological Emergencies and Diseases in Wilderness Expeditions.

When considering medical emergencies that might affect an expedition, urologic emergencies are typically not included. However, the reality is that manageable and prevalent urologic disease processes can pose significant challenges for the wilderness medicine physician and warrant consideration. The purpose of this review is to identify and discuss the most commonly encountered urologic emergencies and diseases in the wilderness setting and to prepare the expedition medicine physician for management of these urgent conditions. A PubMed and Internet search for urologic emergencies and diseases in wilderness conditions was conducted. We also searched bibliographies for useful supplemental literature and material from leading mountain medicine and wilderness medicine societies as well as population-based studies for common urologic diseases. Urologic emergencies and diseases on expeditions and in wilderness conditions have been reported primarily with retrospective case series and case reports. The most commonly reported urologic emergencies in this setting include urologic trauma, renal calculi, and urinary retention. Parasitic infections in the urinary tract also have been reported to cause urinary symptoms and urinary retention in wilderness conditions. Although urologic diseases in such conditions are uncommon, significant morbidity and even potentially life-threatening sequelae to urologic emergencies were found to occur. Major genitourinary emergencies in expedition medicine are uncommon but involve both potentially manageable urgent conditions and serious life-threatening conditions best treated with urgent stabilization and occasionally medical evacuation. The opportunity exists for increased awareness for management strategies for urologic conditions in the often remote or extreme environments of an expedition.

A National Survey of Wilderness Medicine Curricula in United States Emergency Medicine Residencies.

INTRODUCTION: Wilderness medicine (WM) is a growing subspecialty of emergency medicine. In 2018, we surveyed all 240 emergency medicine residencies in the United States to assess the scope of WM education in emergency medicine training programs in light of the nearly 30% increase in the number of residencies since 2015. METHODS: A survey was e-mailed to the Council of Residency Directors in Emergency Medicine listserv and individual program directors of each of the 240 residencies. The survey included questions on educational content, format, number of hours taught, availability of conference credit, offering of an elective or fellowship, and several predefined WM curricula. We evaluated differences between 3-y and 4-y residencies using the χ2 test, where P<0.05 was considered significant. RESULTS: We had a response rate of 57% for completed surveys. Analysis showed 63% of respondent programs teach WM material. The majority (86%) partially or completely developed their curriculum, with 33% offering at least 1 of the predefined curricula. Thirteen percent taught with lecture only, 2% taught by hands-on only, and 85% used a combination of the 2. WM electives were significantly more likely to be offered by 4-y than 3-y residencies (P=0.009). CONCLUSIONS: Almost two-thirds of respondent residency programs teach WM material. Of these, only one-third teach any of the predefined curricula. Four-year residencies are more likely to offer WM electives but are otherwise comparable to 3-y programs.

Retrieval of Additional Epinephrine from Adrenaclick-Style Epinephrine Autoinjectors.

Anaphylaxis is a life-threatening allergic reaction involving multiple organ systems that can result in significant morbidity and mortality if left untreated. Epinephrine is the mainstay of treatment. Most episodes of anaphylaxis resolve after a single dose of epinephrine, but biphasic and protracted courses of anaphylaxis are well described. The need for additional doses of epinephrine poses a significant challenge in the wilderness setting, because patients and providers may only carry a single autoinjector. Prior work has demonstrated successful disassembly of various brands of epinephrine autoinjectors to retrieve additional drug product for repeat dosing. We describe 2 techniques to retrieve additional doses of epinephrine from Adrenaclick-style epinephrine autoinjectors. The techniques described are off-label and are not approved by the manufacturer or the Food and Drug Administration. Wilderness providers should familiarize themselves with techniques for retrieval of additional epinephrine from various autoinjectors in light of significant differences in product design.

Is it Time for Wilderness Medicine Fellowships to Join the National Resident Matching Program Specialties Matching Service?

INTRODUCTION: The national resident matching program specialties matching service (SMS) fills fellowship positions for 66 subspecialties. Wilderness medicine (WM) fellowships currently do not participate in SMS; instead, WM uses an offer date to fill positions. To be successful, at least 75% of the available positions within a subspecialty must be within the SMS match. METHODS: All 13 civilian WM fellowship directors recruiting for academic year (AY) 2019 to 2020 and WM fellowship alumni were surveyed regarding future participation in the SMS. Estimation of the performance of SMS for WM was calculated using data published by the national resident matching program. RESULTS: Fellowship directors from all 13 civilian WM fellowships and 60 fellowship alumni participated in the survey. SMS was supported by 62% (n=8) of fellowship directors and 55% (n=33) of fellows. Willingness to pay SMS fees was 54% (n=7) among fellowship directors and 60% (n=36) among fellows. Of matched applicants, 85% (n=51) obtained their top choice program. SMS, if implemented, was perceived to have no impact on matching a top choice program by 53% (n=31); however, 34% (n=20) believed SMS would improve the chance of an applicant matching higher. The match success of SMS for specialties with fewer than 30 programs is 74%. Of the 20 WM fellowship positions in AY 2019 to 2020, 16 were matched, for a success rate of 80%. CONCLUSIONS: There is insufficient support (<75%) at this time to institute an SMS match for WM. The offer date performed similarly to SMS for filling fellowship positions in AY 2019 to 2020.

Telemedicine for Patient Management on Expeditions in Remote and Austere Environments: A Systematic Review.

Telemedicine potentially offers enormous value to expeditions to remote environments. For healthcare professionals, telemedicine can provide access to specialist advice. Where no healthcare professionals are present, telemedicine may be the sole source of expert care. This systematic review appraises and summarizes the current literature regarding telemedicine in patient management on expeditions to remote locations and identifies areas for future research. MEDLINE and EMBASE were systematically searched for relevant articles from 1980 through February 2018. Data were handled according to the PRISMA process and analyzed using type-specific critical appraisal checklists where possible. Two hundred twenty-five articles were identified, 33 of which were included in this systematic review. They encompassed a variety of remote environments, including maritime (13), polar (9), mountainous (5), jungle (1), and multiple austere environments (6). Although some environments were better reported than others, many overarching concepts were generalizable. Through channels of communication that included telephone, radio, videoconferencing, and email, telemedicine has been used effectively in a range of environments to initiate treatment, follow up with patients, and determine the appropriateness of evacuation. Telementoring, in which a remote expert guides a local care provider in performing a procedure or task, is a promising aspect of telemedicine that is currently being developed. As technology advances, the scope of telemedicine will continue to expand. However, each new telemedical development must be shown to do more than simply function in a remote environment. Instead, new technologies should be tested for improved patient, practitioner, or expedition outcomes, within a telemedical system.