Pilot
evaluation :
Effects of non-invasive, low level pulsed DC magnetic fields (EarthPulse™ v.2.3) on
chronic intractable pain states.
L. R. S, M.D.
YALE-New Haven Hospital
Connecticut, U.S.A.
Pilot evaluation : PEMF
¥ OBJECTIVE: To determine if pulsed electromagnetic fields of
low amplitude
and frequency can
effect pain and sleep patterns in
patients with chronic intractable pain for greater than 2 years.
¥ PATIENTS/SETTING:
¥ 11
patients suffering intractable chronic pain: 6 Neuropathic, 3 Somatic, 2 Mixed
¥ Non-placebo
controlled preliminary study where low level pulsed electromagnetic fields were
applied at home on a nightly basis.
Pilot evaluation : PEMF
¥ INTERVENTION: Non invasive pulsed
electromagnetic field
therapy generates a pulsed unidirectional waveform with a
peak strength of about
90 gauss on the surface of the electromagnet; about .05 gauss through 10 in. mattress.
(Current version 4.3 generates up to 300 gauss at magnet or about 1 gauss through 10 in. mattress).
Pilot evaluation : PEMF
¥ INTERVENTION:
¥ PEMF
is applied at night through the mattress at about 10 Hz. (no Local Recover-Mode application)
Pilot evaluation sleep: PEMF
¥
RESULTS:
Ð 11 patients
7 improvements in quality of sleep.
Subjectively assessed by number of hours of
sleep, sense of well being, fatigue, energy level.
¥
Neuropathic pain
Ð 4 of 6 improved sleep
¥
Somatic
Ð 1 of 3 improved sleep
¥
Mixed
Ð 2 of 2 improved sleep
Pilot evaluation pain: PEMF
¥
RESULTS:
Ð 11 patients
7 improvements in pain.
Subjectively assessed by Visual analog pain
scales.
¥
Neuropathic pain
Ð 4 of 6 reduced pain
¥
Somatic
Ð 2 of 3 reduced pain
¥
Mixed
Ð 1 of 2 reduced pain
Pilot evaluation : PEMF
¥
RESULTS:
Ð 11 patients
8 improvements in either pain or sleep (6 improvements in both pain and sleep)
Subjectively assessed by Visual analog pain
scales and quality of sleep.
¥
8 patients-Improvement
Ð Average use continuous 2.5 months
¥
3 patients-No
improvement
Ð Average use 1 week
Pilot evaluation : PEMF
¥ Summation
Ð Pilot study
suggests very powerful effect on both sleep and pain on heterogeneous group of
patients with chronic intractable pain for 2 years or more.
Ð Further blinded
and placebo controlled studies are warranted.