HVPGS, Properties, duration, application and uses

1. HIGH VOLTAGE PULSED
GALVANIC STIMULATION
Dr. Usha (PT)
Assistant Professor

2.  The high volt pulsed galvanic stimulator (HVPGS), a
type of neuromuscular stimulator is a short duration
(microsecond), micro-amperage current driven by a
high voltage current (up to 300 volts) that is delivered
as a twin-peak monophasic waveform of fixed
duration (100 microseconds).
Introduction

3.  This direct current can produce both a mechanical
contraction and a chemical change within the body.

4. High volt pulsed galvanic current
(HVPGC) general explanation:
 While used clinically over the last 45 years, this type
of stimulation and its applications have received much
more attention in the last five years.
 Typical indications for use include a wide range of
clinical problems where high voltage may be applied
alone or in combination with other modalities.

5.  HVPGS is the use of a high driving voltage (up to
500V) to produce analgesia, muscle contractions, and
to facilitate wound healing.
 Galvanic stimulation combines very short pulse
duration (of constant intensity) and high peak voltage,
yet low total current per second, to give relative
comfort and avoid tissue damage while stimulating
deep tissues. It is also an efficient means of exciting
nerve fibers.

6.  It allows for deeper penetration.
 It does not burn (low amps).
 It flows between each pad and dispersive pad (usually
placed on large muscle group).
 It can be used in water. It has the ability to move
fluids. Is used for open wounds, burns and over scar
tissue. Can be used on metal implants.

7. PHYSIOLOGICAL EFFECTS
 Maintaining or increasing range of motion.
 Re-educating muscles.
 Edema/swelling/inflammation reduction.
 Reducing motor spasticity.
 Increasing local blood circulation to injured area
and promoting fluid movement to and from
treatment area.

8.  Preventing or retarding muscle disuse atrophy.
 Managing chronic/post-traumatic/post-surgical pain
conditions allowing patient to participate in their pain
management program.
 Stimulation and acceleration of wound healing by
promoting blood circulation to wound.

9. INDICATIONS
 Adhesive Capsulitis, Bursitis
 Wound Healing, Odema
 Cervical Sprain/Spasm
 Degenerative Disc, Sciatica
 Epicondylitis
 Lumbosacral Sprain
 Shoulder Subluxation, TMJ
 PostOperative conditions-Arthroscopy, Discectomy,
Spinal Fusion

10. Duration
Minimum of 30-40 minutes/3xday
Application
The positive pad is like ice, tending to reduce
circulation to the area under the pad and
reduction in swelling. The negative pad is
like heat, promoting increased circulation,
reportedly speeding healing.

11. Thank you