II. Physiology

III. Types: Exertional Heat Syndromes

  1. Heat Edema
    1. Benign swelling of hands, feet, and ankles
    2. Associated with salt or water retention from heat
  2. Heat Syncope
    1. Dizziness or fainting after heat exposure
    2. Secondary to vasodilatation and Postural Hypotension
    3. Seen in persons unaccustomed to extreme heat
  3. Heat Stress
    1. Increased Temperature following heat exposure
  4. Heat Cramps
  5. Heat Exhaustion
  6. Heat Stroke

V. Management

  1. General Principles
    1. Rest
    2. Cooling
    3. Hydration
  2. Treat per degree of Heat Illness
    1. Heat Cramps
    2. Heat Exhaustion
    3. Heat Stroke

VI. Associated Conditions

VII. Prevention

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Ontology: Heat edema (C0161741)

Concepts Injury or Poisoning (T037)
ICD9 992.7
ICD10 T67.7
SnomedCT 157728007, 55017000
English Effects of heat edema, Effects of heat oedema, heat edema, heat edema (diagnosis), edema heat, Heat oedema (disorder), Heat edema, Heat oedema, Heat edema (disorder), edema; heat, heat; edema
Italian Edema da calore
French Oedème dû à la chaleur, Oedème de chaleur
Japanese 熱性浮腫, ネッセイフシュ, ネツセイフシュ
Czech Edém z horka, Otok z horka
Korean 열성 부종
Hungarian Thermicus oedema
Dutch hitte; oedeem, oedeem; hitte, Warmte-oedeem, hitte-oedeem
Spanish edema por calor (trastorno), edema por calor, Edema por calor
Portuguese Edema pelo calor
German Hitzeoedem

Ontology: Heat Stress Disorders (C0282507)

Definition (MSH) A group of conditions that develop due to overexposure or overexertion in excessive environmental heat.
Concepts Injury or Poisoning (T037)
MSH D018882
English Disorder, Heat Stress, Disorders, Heat Stress, Heat Stress Disorder, Heat Stress Disorders, Heat Stress Syndrome, Heat Stress Syndromes, Stress Disorder, Heat, Stress Disorders, Heat, Stress Syndrome, Heat, Stress Syndromes, Heat, Syndrome, Heat Stress, Syndromes, Heat Stress, STRESS DIS HEAT, HEAT STRESS DIS, Heat Stress Disorders [Disease/Finding], heat stress
Swedish Värmesjuka
Czech syndromy vyvolané horkem, poruchy vyvolané tepelným stresem
Finnish Lämpörasitushäiriöt
Japanese 熱ストレス障害, 熱ストレス症候群
Spanish Trastornos de Estrés por Calor, Síndromes de Estrés por Calor, Calambre por Calor, Síndromes de Estrés Térmico
Portuguese Síndromes de Estresses devidas ao Calor, Transtornos de Estresse por Calor, Cãibra por Calor, Síndromes de Estresse Térmico, Câimbras por Calor, Cãibras por Calor, Síndromes de Stress Térmico, Câimbras devidas ao Calor, Transtornos de Stress devidos ao Calor, Estress Orgânico por Calor, Estresse Vital por Calor, Stress Orgânico por Calor, Síndromes de Stress devidas ao Calor, Síndromes de Stress por Calor, Transtornos de Estresse devidos ao Calor, Transtornos de Stress Térmico, Stress Vital por Calor, Stress devido ao Calor, Stress por Calor, Síndromes de Estresse por Calor, Estresse Corporal por Calor, Estresse por Calor, Transtornos de Estresse Térmico, Transtornos de Stress por Calor, Estresse devido ao Calor, Síndromes de Estress devidas ao Calor
Polish Zaburzenia wywołane wysoką temperaturą, Zaburzenia wywołane ciepłem, Skurcz mięśni cieplny
Norwegian Varmeforårsaket stresslidelse, Stresslidelse pga. varme, Stresslidelse pga varme
German Hitzebedingte Streßstörungen, Hitzebedingte Streßsyndrome
Italian Stress da calore
Dutch Aandoening ten gevolge van oververhitting, Aandoeningen ten gevolge van oververhitting, Oververhitting, aandoening ten gevolge van, Oververhitting, aandoeningen ten gevolge van, Syndroom ten gevolge van oververhitting
French Stress dû à la chaleur, Stress thermique, Troubles dus à la chaleur

Ontology: Thermal injury (C0332685)

Definition (SCTSPA) Lesión traumática debida a calor intenso
Definition (SNOMEDCT_US) Injury due to increased heat
Definition (CSP) damage inflicted on any part of an organism as the direct or indirect result of exposure to a high temperature, with or without disruption of structural continuity.
Concepts Injury or Poisoning (T037)
SnomedCT 161006
English heat injury, thermal injuries, heat injuries, thermal injury, injuries heat, injuries thermal, Heat injury, Thermal injury (morphologic abnormality), Thermal injury, Heat injury, NOS, Thermal injury, NOS
Spanish injuria por calor, injuria térmica, lesión por calor, lesión traumática térmica (anomalía morfológica), lesión traumática térmica

Ontology: Heat illness (C1456556)

Definition (MEDLINEPLUS)

Your body normally cools itself by sweating. During hot weather, especially with high humidity, sweating just isn't enough. Your body temperature can rise to dangerous levels and you can develop a heat illness. Most heat illnesses occur from staying out in the heat too long. Exercising too much for your age and physical condition are also factors. Older adults, young children and those who are sick or overweight are most at risk. Drinking fluids to prevent dehydration, replenishing salt and minerals, and limiting time in the heat can help.

Heat-related illnesses include

  • Heatstroke - a life-threatening illness in which body temperature may rise above 106![DEGREE SIGN]! F in minutes; symptoms include dry skin, rapid, strong pulse and dizziness
  • Heat exhaustion - an illness that can precede heatstroke; symptoms include heavy sweating, rapid breathing and a fast, weak pulse
  • Heat cramps - muscle pains or spasms that happen during heavy exercise
  • Heat rash - skin irritation from excessive sweating

Centers for Disease Control and Prevention

Concepts Injury or Poisoning (T037)
English Heat illness, Heat Illness
Spanish Enfermedad por calor
Dutch hitteaandoening
German Hitzekrankheit
Japanese ネッチュウショウ, 熱中症
Czech Tepelná nemoc
Portuguese Doença devido ao calor
Italian Malattia da calore
French Maladie due à la chaleur
Hungarian Hő betegség