Cryotherapy

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Author:
jpowell22
ID:
138257
Filename:
Cryotherapy
Updated:
2012-02-27 22:42:41
Tags:
lecture
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Description:
maureen lecture
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  1. What 5 things does the extent of cooling depend on?
    • 1. initial skin temp
    • 2. temp of environment
    • 3. duration of application
    • 4. amount of cold applied
    • 5. subcutaneous tissue thickness or fat present
  2. What temp may result in thermal damage to the tissues and lead to inflammatory response, edema, and tissue death?
    • 10 C
    • 50 F
  3. What are some physiological effects of cooling?
    • 1. decreased blood flow and inflammation (vasoconstricts- symp. nervous system, hunting reaction-vasodilation, abnormal)
    • 2. metabolism (decrease metastasis and prevent secondary tissue damage)
    • 3. skin temp decrease (decreased circulation, cold is not easily dissipated, easy to damage tissue)
    • 4. connective tissue (collagen-increases viscosity which increases the resistance to movement)
    • 5. pain (counterirritant-gate theory, decreased throbbing or aching pain)
    • 6. muscle (seen after 5 mins of application)- longer contraction time, longer time for relaxation, decreases spasticity and muscle spindle sensitivity and muscle tone for 2 hours
    • 7. joints - increases viscosity - dont do motor activity right after ice with some people
  4. What are systemic responses to cold?
    • vasoconstriction of body surface vessels - shunt blood away from surface to core
    • decreased sweat production
    • depression of cardiovascular system - decreases pulse and BP
    • shivering
    • increased body metabolism to conserve body heat
  5. What are some indications of cryotherapy?
    • immediately post trauma-acute
    • post-op
    • relief of muscle spasms and spasticity
    • decrease pain
    • anti-inflammatory
    • reduce fever
    • emergency care burns (burn pt with HP)
    • edema
  6. What are contraindications of cold?
    • angina pectoris/cardiac dysfunction
    • open wounds after 48-72 hours
    • arterial insufficiency - PVD
    • hypersensitivity to cold (cold urticaria, Raynauds disease-digit spasms when exposed to cold)
    • anesthetic skin
    • regenerating peripheral nerves
  7. What are precautions for cryo?
    • elderly people - dont tolerate cold well
    • prolonged application -> tissue damage, especially ice
  8. How long do ice pack treatments normally last?
    10-15 mins
  9. What is the normal treatment time for ice massage?
    5-10 mins
  10. What is the temp for a cool WP?
    • 67-79 F
    • 19-26 C
  11. What is the temp for a cold WP?
    • 55-67 F
    • 13-19 C
  12. What is the temp of a very cold WP?
    • 32-55 F
    • 0-13 C
  13. What are vapocoolant sprays used for?
    painful muscle guarding and desensitizing trigger areas

    ethyl chloride or fluoromethane - volatile

    cools thru evaporation
  14. What are indications for a contrast bath?
    • impaired venous circulation and idolent ulcers
    • subacute or chronic traumatic and inflammatory conditions
    • edema
    • sinus or congestive headaces
    • pain
  15. What are the temps for a contrast bath?
    • warm - 80-104F.......38 to 44C
    • cold - 55-67F........10-18C


    warm 3 mins then cold 1 for 20-30 mins
  16. What water (warm/cold) do you want to end with during a contrast bath?
    • if PVD end on warm
    • acute end on cold

    end with temp youd normall use for treatment
  17. What are some disadvantages for a contrast bath?
    • uncomfortable for pt
    • have to watch timer
    • set up
    • time consuming
    • keep track of rounds
  18. What sensations will a pt experience during cryo (mostly for ice massage)?
    • cold
    • burning
    • aching
    • numbness

    CBAN - stop after its numb

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