eswt .... short wave therapy Flashcards
a pressure disturbance that propages rapidly through a medium or a large amplitude compression wave or simply an aucostic wave for transmitting energy
a shockwave
the shockwave consists of what
high pressure phase followed by low pressure phase
methods a shortwave can be generated
electromagnetic
electrohydraulic
reverse piezoelectric
direct and indirect effect in the shock wave is associated with what respectively
mechanic and cavitation
what is the application duration
1 session weekly and 3-5 sessions totally
full meaning of ewst
extracorporeal shock wave therapy
a large amplitude compression wave as that produced by an expolsion or by supersonic motion of the body is
shockwave
what happens when shock wave enters the tissue
reflected
refracted
transmitted and dissipated
when the shock wave reaches a boundry what happens
some of the energy will be reflected and some will be transmitted
characteristics of a short wave are
peak pressure .50-80 and 35-120
fast pressure rise
short duration
narrow effective beam 2-8
treatment effect of the shockwave
Mechanical stimulation
• Increased local blood flow
• Increase in cellular activity – release of substance P, prostaglandin E2, NO, TGF
β, VEGF, and almost certainly other inflammatory cytokines
• Transient analgesic effect on afferent nerves
• Break down calcific deposits
• Takes a tissue from a more chronic to a more acute state
energy intensities for the application
low….0.08
medium 0.08-0.28
high 0.60
bone tissue application under high energy applications is done under
anesthesia ….2000-6000 shock in 1-4 sessions
tendon ligamant muscle application is done under
low to moderate 1000-2000 sessions
some adverse temporary effects of shock wave
minor skin irritation
numbness or paraesthesia
