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Wilderness Medicine Wilderness Medicine in the Neotropics:in the Neotropics:Challenges and special considerationsChallenges and special considerations
Luis A Camargo and Shana Lee TarterLuis A Camargo and Shana Lee TarterInstituto de Medicina para Areas Silvestres (OpEPA) / Wilderness Medicine Institute of NOLSInstituto de Medicina para Areas Silvestres (OpEPA) / Wilderness Medicine Institute of NOLS
WRMC 2005WRMC 2005
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IntroductionIntroduction Cultural DifferencesCultural Differences Medical and Evacuation ServicesMedical and Evacuation Services Tropical DiseasesTropical Diseases Tropical WoundsTropical Wounds Tropical CreaturesTropical Creatures Client and Organizational Client and Organizational
PreparednessPreparedness Q & AQ & A
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The NeotropicsThe Neotropics
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What is the meaning of What is the meaning of Tropics?Tropics?
Remote WildernessRemote Wilderness Hot, Humid Hot, Humid
environment to environment to permanent snow permanent snow capscaps
Megadiversity:Megadiversity:biological & culturalbiological & cultural
0 - 6,000 meters 0 - 6,000 meters altitudesaltitudes
No prominent No prominent seasonsseasons
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Developing CountriesDeveloping Countries Poor economiesPoor economies
GNI USD$746-GNI USD$746-2,975 2,975 (per capita, in (per capita, in USA GNI is USD$34,100, USA GNI is USD$34,100, World Bank)World Bank)
Limited resourcesLimited resources Limited Limited
infrastructureinfrastructure Limited access to Limited access to
education, healtheducation, health Survival dynamicsSurvival dynamics
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Cultural DifferencesCultural Differences
Local idiosyncrasyLocal idiosyncrasy Beliefs and Beliefs and
perceptionsperceptions(world view)(world view) ““Shit happens”Shit happens” ““No problem”No problem” ““Its not my problem”Its not my problem” ““GringosGringos!”!”
BureaucracyBureaucracy
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Medical and Evacuation Medical and Evacuation ServicesServices
Don’t make Don’t make assumptions about assumptions about
what will be what will be available, do your available, do your
homework, in homework, in person if possible!person if possible!
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Medical ServicesMedical Services
Concentrated to citiesConcentrated to cities Limited AvailabilityLimited Availability
Emergency transportEmergency transport Rescue teamsRescue teams Emergency centersEmergency centers
Limited local staff Limited local staff trainingtraining
Need for Need for strengthened strengthened Instructor/guide Instructor/guide teamsteams
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Assess ServicesAssess Services
LanguageLanguage PersonnelPersonnel SpecialistsSpecialists Scope of CareScope of Care Equipment ResourcesEquipment Resources Transportation OptionsTransportation Options General ImpressionGeneral Impression HistoryHistory
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Consider EvaluatingConsider Evaluating
HospitalsHospitals ClinicsClinics Ground Ambulance ServicesGround Ambulance Services Air Ambulance ServicesAir Ambulance Services Helicopter ServicesHelicopter Services SAR TeamsSAR Teams
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Emergency Service Emergency Service InventoryInventory
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Hospital Profile Hospital Profile ScreeningScreening
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Build RelationshipsBuild Relationships
Share who you are, what you doShare who you are, what you do Obtain names and contact Obtain names and contact
informationinformation Create realistic expectationsCreate realistic expectations Understand communication channelsUnderstand communication channels
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Enhance Self SufficiencyEnhance Self Sufficiency
Consider having emergency Consider having emergency transportationtransportation
Use an in-country evacuation Use an in-country evacuation coordinatorcoordinator
Have translators availableHave translators available Have a supplemental medical kitHave a supplemental medical kit Realistically prepare clients for Realistically prepare clients for
delays and limitationsdelays and limitations
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Tropical DiseasesTropical Diseases
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Malaria (2002, Future Risk)
Global warming and climate change are recognized as mayor factors in changing distribution of infectious disease and vectors.
Tropical diseases are becoming an increasing threat to non tropical areas.
Cutaneous LeishmaniasisOnchocersiasis
DistributionDistribution
Soil HemintiasisLymphatic Filariasis
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TransmissionTransmission
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Broad CategoriesBroad Categories
Mosquito Borne Mosquito Borne Diseases Diseases
Flies Flies Parasitic Parasitic
Diseases Diseases Water / HygieneWater / Hygiene
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MosquitoesMosquitoes
MalariaMalaria Lymphatic Lymphatic
FiliarsisFiliarsis DengueDengue Yellow FeverYellow FeverMalaria: 2 billion people (40% of the world's population) are
exposed. 10,000-30,000 travelers are affected annually
NOLS had 12 cases of malaria between 1986 and 2001 at our East Africa Base
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FliesFlies
Furuncular MyiasisFuruncular Myiasis LeishmaniasisLeishmaniasis Onchocerciasis or Onchocerciasis or
River Blindness (Parasitic)River Blindness (Parasitic)
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ParasitesParasites
America Trypanosomiasis (Chagas America Trypanosomiasis (Chagas Disease)Disease) Vector Vector Kissing Bug Kissing Bug
SchistosomiasisSchistosomiasis Vector Vector Fresh Water Snail Fresh Water Snail
Soil-transmitted Helminthiases Soil-transmitted Helminthiases (STH)(STH) Roundworms, Hookworms, WhipwormsRoundworms, Hookworms, WhipwormsIt is estimated that one quarter of the world's population is infected with parasitic worms.
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Tropical Disease Evacuation Tropical Disease Evacuation CriteriaCriteria
High fever >102F (>40C) especially High fever >102F (>40C) especially with profuse sweating, head and muscle with profuse sweating, head and muscle achesaches
Uncontrolled diarrhea >24-72 hours or Uncontrolled diarrhea >24-72 hours or bloody diarrheabloody diarrhea
S/s serious abdominal illness/injuryS/s serious abdominal illness/injury Moderately-severely infected woundsModerately-severely infected wounds Abnormal skin lesions, necrotizing or Abnormal skin lesions, necrotizing or
ulcerating woundsulcerating wounds Any animal biteAny animal bite
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Tropical Disease Tropical Disease PreventionPrevention
Insect protectionInsect protection Proper food choicesProper food choices Disinfect waterDisinfect water Maintain good hygiene practicesMaintain good hygiene practices Avoid walking barefootAvoid walking barefoot In high risk areas, avoid wading, In high risk areas, avoid wading,
swimming or bathing in fresh waterswimming or bathing in fresh water
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Water TreatmentWater Treatment
Boil and coolBoil and cool Filter and HalogenateFilter and Halogenate HalogenateHalogenate
Pick trusted water sources.Pick trusted water sources.
Treat your water or treat Treat your water or treat your stomach!your stomach!
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Wounds IssuesWounds Issues
High prevalence in outdoor activitiesHigh prevalence in outdoor activities Create pathways for pathogens to Create pathways for pathogens to
enter the bodyenter the body Tropical wounds often slow to healTropical wounds often slow to heal Infection is a significant issueInfection is a significant issue
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Wound Management Wound Management
Control BleedingControl Bleeding Prevent Infection Prevent Infection Promote Healing Promote Healing
Principles do not change!Principles do not change!
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Wound Complications Wound Complications
Mild-Severe InfectionsMild-Severe Infections Necrotizing Wounds/Tropical UlcersNecrotizing Wounds/Tropical Ulcers MyiasisMyiasis RabiesRabies Fungal Infections Fungal Infections
40,000-70,000 people die each year of rabies, 10 million
receive post-exposure treatment, 90% of exposure is through contact with infected
dogs (WHO)
Tropical Ulcer
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Aggressive BiodiversityAggressive Biodiversity
Vipers, Reptiles and AmphibiansVipers, Reptiles and Amphibians InsectsInsects SpidersSpiders Water CreaturesWater Creatures
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Snakes!Snakes!
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VipersVipers
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VipersVipers
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ElapidsElapids
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ElapidsElapids
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Psyche!Psyche!
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AntivenomsAntivenoms
Probiol, COLOMBIA
Wyeth, USA
Instituto Clodomiro Picado, COSTA RICA
Avoid Avoid using using
Suction Suction Devices Devices
on snake on snake bites!bites!
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SpidersSpiders
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AmphibiansAmphibians(Poison Dart Frogs)(Poison Dart Frogs)
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InsectsInsects
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Water CrittersWater Critters
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Tropical Creatures Tropical Creatures Prevention StrategiesPrevention Strategies
Know what’s out thereKnow what’s out there Don’t put hands and feet where you can’t see Don’t put hands and feet where you can’t see
themthem Resist temptation to sample local ediblesResist temptation to sample local edibles Don’t hike at nightDon’t hike at night Don’t walk barefootDon’t walk barefoot Shake out clothes, sleeping bags, footwearShake out clothes, sleeping bags, footwear Keep tents zippedKeep tents zipped Do not eat plants or fruits you are not certain Do not eat plants or fruits you are not certain
aboutabout
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Tropical Creatures Tropical Creatures Evacuation CriteriaEvacuation Criteria
Any snake biteAny snake bite Any animal biteAny animal bite Any wound of unknown origin not Any wound of unknown origin not
responding to treatmentresponding to treatment Any severe allergic reactionAny severe allergic reaction Any toxic reactions to plant or fruit Any toxic reactions to plant or fruit
consumptionconsumption
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Training and Client Training and Client Organizational Organizational PreparednessPreparedness
Ensure that your program information Ensure that your program information effectively prepares the client for effectively prepares the client for
where they are going and what they where they are going and what they will be doing.will be doing.
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VaccinationVaccination
Consult the WHO and CDC for Consult the WHO and CDC for recommendations and requirementsrecommendations and requirements
Common include: Common include: Hepatitis Hepatitis Yellow feverYellow fever TetanusTetanus Routine ImmunizationsRoutine Immunizations
Malaria ProphylaxisMalaria Prophylaxis
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Staff Medical TrainingStaff Medical Training
WFA, WFR, WEMTWFA, WFR, WEMT Urban EMS skills-oxygen, airway, Urban EMS skills-oxygen, airway,
spinespine Tropical Medicine ModuleTropical Medicine Module Patient care experiencePatient care experience Language skillsLanguage skills Understand roles and Understand roles and
responsibilities responsibilities
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Supplemental First Aid Supplemental First Aid KitsKits
Standard and supplemental kit advisedStandard and supplemental kit advised Extra gloves, multiple sizesExtra gloves, multiple sizes Other Personal Protective Equipment-masks, glasses, gownsOther Personal Protective Equipment-masks, glasses, gowns IV needles, IM needles, SQ needlesIV needles, IM needles, SQ needles Suture materials (needles, sutures, instruments)Suture materials (needles, sutures, instruments) Pain Medications (narcotics require special permits to cross Pain Medications (narcotics require special permits to cross
international borders)international borders) Local AnalgesicLocal Analgesic Anti-venoms (fragile, cost, availability, volume, allergic Anti-venoms (fragile, cost, availability, volume, allergic
response)response) Decadron (Dexamethazone)Decadron (Dexamethazone) Epi 1:1000Epi 1:1000 Surgery grade antibacterial soapSurgery grade antibacterial soap ORSORS For any medication: copy of prescription with generic name For any medication: copy of prescription with generic name
also, original container, indications, contraindications, dose, also, original container, indications, contraindications, dose, side-effects.side-effects.
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Explore IntelligentlyExplore Intelligently
The tropics The tropics areare wilderness wilderness Mega diversity provides Mega diversity provides
Opportunities and RisksOpportunities and Risks Know your destination and what Know your destination and what
inhabits itinhabits it Being prepared and respectful Being prepared and respectful will will
reduce the risksreduce the risks
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Questions?