HVPC Flashcards
HVPC wave form frequency pulse duration peak current interpulse interval total current polarity
twin peak monophasic 1-200hz 5-65 high long very low yes
pulse duration of HVPC more or less than TENS
less, even more comfortable
TENS wave form
as/symmetrical biphasic
or pulsed DC
Tens voltage
low voltage
NMES wave form
as/symetrical biphaisc
NMES voltage
low but longer duration than TENS
HVPC waveform
pulsed monophasic
HVPC voltage
high volt, high peak, but love average
physiological effects of HVPC
pain
edema absorption
wound healing
mm
polarity
temporary accumulation of charge
monphasic positive or negative?
neither
during pain modulation, endo or exo opiates release
endogenous
during edema management, negative or positive polarity
negative
how does HVPC help wound healing
stimulation of new tissue formation
charge relatively __ in acute injury
positive
Galvanotaxis
like charges repel, opposite attract
attract desired cells at right stage
macrophages pos or neg
neg
fibroblasts pos or neg
pos
epithelial cels pos or neg
neg
epidural cells pos or neg
neg
HVPC __ bacteria
reduce
advantages of combing HVPC and NMES
no
is HVPC precaution or contra for impaired cognition
precaution
why HVPC and NMES only precautions for cognition impaired
doesn’t require patient feedback
often Sc injury to treated wound or stimulate mm contraction
HVPC acute pain
80-150 HZ
HVPC chronic pain
acupuncture like TENS
is sensory intensity relevant or irrelevant for HVPC
irrelevent
HVPC primarily used for __ inflammation or edema
subacute
Hz for edema reduction
5-20 to twitch
usually start w __ polarity at site of edema
negative
how often wound healing HVPC
30-60 mins, 3-7 days a week
treatment goal debridement , cells recruited :
macrophages
neutrophils
treatment goal infection , cells recruited :
activated neutrophils
treatment goal granulationt , cells recruited :
fibroblasts
treatment goal wound contraction , cells recruited :
myofibroblasts
treatment goal epithelization , cells recruited :
keratinocytes
epidermal cells
macrophages polarity
neutrophils polarity
pos
neg
activated neutrophils polarity
neg
myofibroblasts polairty
neg
keratinocytes
epidermal cells
polarity
neg
pos
HVPC doms
helps
is biphasic or monophonic better for wound healing
biphasic