Hyperthermia: Difference between revisions

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== Hyperthermia  ==
==                                                               Hyperthermia  ==


<br>
=== Description ===
Hyperthermia refers to a group of heat-related conditions characterized by an abnormally high body temperature. It is an abnormally high body temperature caused by a failure of the heat-regulating mechanisms of the body to deal with the heat coming from the environment. Heat fatigue, heat syncope (sudden dizziness after prolonged exposure to the heat), heat cramps, heat exhaustion and heat stroke are commonly known forms of hyperthermia. Risk for these conditions can increase with the combination of outside temperature, general health and individual lifestyle. In humans, core body temperature ranges from [https://academic.oup.com/bjaed/article/13/3/75/279055 95.9°F to 99.5°F] during the day, or 35.5°C to 37.5°C. Hyperthermia is defined as a body temperature greater than 40°C.


This modality involves using deep-heating machines that combine a superficial cooling system with a microwave-powered heating system. This can increase the temperature of target tissues approximately 4_C without damaging the skin. Presumably this increased temperature<br>results in increased blood flow and subsequent healing to the damaged area.
=== Symptoms ===
<ref name="giobini a">Giombini A, Di Cesare A, Casciello G, Sorrenti D, Dragoni S, Gabriele P. Hyperthermia at 434 MHz in the treatment of overuse sport tendinopathies: a randomised controlled clinical
 
trial. Int J Sports Med. 2002;23:207–211. (B)</ref> <ref name="giombini a di cesare">Giombini A, Di Cesare A, Safran MR, Ciatti R, Maffulli N. Short-term effectiveness of hyperthermia for supraspinatus tendinopathy in athletes: a short-term randomized controlled
==== Heat Fatigue and cramps ====
study. Am J Sports Med. 2006;34:1247–1253. (B)</ref>
* exhaustion
* flushed or red skin
* muscle cramps, spasm and pain
* headache or mild light-headedness
* nausea
 
==== Heat exhaustion ====
* cold, pale, wet skin
* extreme or heavy sweating
* fast but weak pulse
* nausea, vomiting and diarrhea
* headache
* muscle cramps
* weakness
* losing consciousness
* confusion
* fainting
 
=== People at risk ===
* Being dehydrated.
* Age-related changes to the skin such as impaired blood circulation and inefficient sweat glands.
* Heart, lung and kidney diseases, as well as any illness that causes general weakness or fever.
* High blood pressure or other conditions that require changes in diet. For example, people on salt-restricted diets may be at increased risk. However, salt pills should not be used without first consulting a doctor.
* Reduced sweating, caused by medications such as diuretics, sedatives, tranquilizers and certain heart and blood pressure drugs.
* Taking several drugs for various conditions. It is important, however, to continue to take prescribed medication and discuss possible problems with a physician.
* Being substantially overweight or underweight.
* Drinking alcoholic beverages.
 
=== Management ===
If you suspect that someone is suffering from a heat-related illness:
# Get the person out of the heat and into a shady, air-conditioned or other cool place. Urge them to lie down.
# If you suspect heat stroke, call 911.
# Encourage the individual to shower, bathe or sponge off with cool water.
# Apply a cold, wet cloth to the wrists, neck, armpits, and/or groin. These are places where blood passes close to the surface of the skin, and the cold cloths can help cool the blood.
# If the person can swallow safely, offer fluids such as water, fruit and vegetable juices, but avoid alcohol and caffeine.
 
==== '''Cooling Techniques''' ====
 
<references />

Revision as of 19:40, 30 October 2020

Hyperthermia[edit | edit source]

Description[edit | edit source]

Hyperthermia refers to a group of heat-related conditions characterized by an abnormally high body temperature. It is an abnormally high body temperature caused by a failure of the heat-regulating mechanisms of the body to deal with the heat coming from the environment. Heat fatigue, heat syncope (sudden dizziness after prolonged exposure to the heat), heat cramps, heat exhaustion and heat stroke are commonly known forms of hyperthermia. Risk for these conditions can increase with the combination of outside temperature, general health and individual lifestyle. In humans, core body temperature ranges from 95.9°F to 99.5°F during the day, or 35.5°C to 37.5°C. Hyperthermia is defined as a body temperature greater than 40°C.

Symptoms[edit | edit source]

Heat Fatigue and cramps[edit | edit source]

  • exhaustion
  • flushed or red skin
  • muscle cramps, spasm and pain
  • headache or mild light-headedness
  • nausea

Heat exhaustion[edit | edit source]

  • cold, pale, wet skin
  • extreme or heavy sweating
  • fast but weak pulse
  • nausea, vomiting and diarrhea
  • headache
  • muscle cramps
  • weakness
  • losing consciousness
  • confusion
  • fainting

People at risk[edit | edit source]

  • Being dehydrated.
  • Age-related changes to the skin such as impaired blood circulation and inefficient sweat glands.
  • Heart, lung and kidney diseases, as well as any illness that causes general weakness or fever.
  • High blood pressure or other conditions that require changes in diet. For example, people on salt-restricted diets may be at increased risk. However, salt pills should not be used without first consulting a doctor.
  • Reduced sweating, caused by medications such as diuretics, sedatives, tranquilizers and certain heart and blood pressure drugs.
  • Taking several drugs for various conditions. It is important, however, to continue to take prescribed medication and discuss possible problems with a physician.
  • Being substantially overweight or underweight.
  • Drinking alcoholic beverages.

Management[edit | edit source]

If you suspect that someone is suffering from a heat-related illness:

  1. Get the person out of the heat and into a shady, air-conditioned or other cool place. Urge them to lie down.
  2. If you suspect heat stroke, call 911.
  3. Encourage the individual to shower, bathe or sponge off with cool water.
  4. Apply a cold, wet cloth to the wrists, neck, armpits, and/or groin. These are places where blood passes close to the surface of the skin, and the cold cloths can help cool the blood.
  5. If the person can swallow safely, offer fluids such as water, fruit and vegetable juices, but avoid alcohol and caffeine.

Cooling Techniques[edit | edit source]