Effect of local exposure to inhomogeneous static magnetic field on stomatological pain sensation – a double-blind, randomized, placebo-controlled study

2012 ◽  
Vol 88 (5) ◽  
pp. 430-438 ◽  
Author(s):  
János F. László ◽  
Péter Farkas ◽  
Jenő Reiczigel ◽  
Péter Vágó
Keyword(s):  
Magnetic Field ◽  
Static Magnetic Field ◽  
Controlled Study ◽  
Pain Sensation ◽  
Double Blind ◽  
Local Exposure

scholarly journals Influence of inhomogeneous static magnetic field-exposure on patients with erosive gastritis: a randomized, self- and placebo-controlled, double-blind, single centre, pilot study

2014 ◽  
Vol 11 (98) ◽  
pp. 20140601 ◽  
Author(s):  
Márk Juhász ◽  
Viktor L. Nagy ◽  
Hajnal Székely ◽  
Dorottya Kocsis ◽  
Zsolt Tulassay ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Pilot Study ◽  
Static Magnetic Field ◽  
Epigastric Pain ◽  
Erosive Gastritis ◽  
Post Intervention ◽  
Field Exposure ◽  
Double Blind ◽  
Double Line ◽  
Complementary Method

This pilot study was devoted to the effect of static magnetic field (SMF)-exposure on erosive gastritis. The randomized, self- and placebo-controlled, double-blind, pilot study included 16 patients of the 2nd Department of Internal Medicine, Semmelweis University diagnosed with erosive gastritis. The instrumental analysis followed a qualitative (pre-intervention) assessment of the symptoms by the patient: lower heartburn (in the ventricle), upper heartburn (in the oesophagus), epigastric pain, regurgitation, bloating and dry cough. Medical diagnosis included a double-line upper panendoscopy followed by 30 min local inhomogeneous SMF-exposure intervention at the lower sternal region over the stomach with peak-to-peak magnetic induction of 3 mT and 30 mT m −1 gradient at the target site. A qualitative (post-intervention) assessment of the same symptoms closed the examination. Sham- or SMF-exposure was used in a double-blind manner. The authors succeeded in justifying the clinically and statistically significant beneficial effect of the SMF- over sham-exposure on the symptoms of erosive gastritis, the average effect of inhibition was 56% by p = 0.001, n = 42 + 96. This pilot study was aimed to encourage gastroenterologists to test local, inhomogeneous SMF-exposure on erosive gastritis patients, so this intervention may become an evidence-based alternative or complementary method in the clinical use especially in cases when conventional therapy options are contraindicated.

Transcranial static magnetic field stimulation (tSMS) of the visual cortex decreases experimental photophobia

Cephalalgia ◽  
2017 ◽  
Vol 38 (8) ◽  
pp. 1493-1497 ◽  
Author(s):  
Elena Lozano-Soto ◽  
Vanesa Soto-León ◽  
Simona Sabbarese ◽  
Lara Ruiz-Alvarez ◽  
Margarita Sanchez-del-Rio ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Visual Cortex ◽  
Static Magnetic Field ◽  
High Intensity ◽  
Cortical Excitability ◽  
Occipital Cortex ◽  
Field Stimulation ◽  
Double Blind ◽  
Light Stimuli ◽  
Subjective Discomfort

Background Transcranial static magnetic field stimulation (tSMS) reduces cortical excitability in humans. Methods The objective of this study was to determine whether tSMS over the occipital cortex is effective in reducing experimental photophobia. In a sham-controlled double-blind crossover study, tSMS (or sham) was applied for 10 minutes with a cylindrical magnet on the occiput of 20 healthy subjects. We assessed subjective discomfort induced by low-intensity and high-intensity visual stimuli presented in a dark room before, during and after tSMS (or sham). Results Compared to sham, tSMS significantly reduced the discomfort induced by high-intensity light stimuli. Conclusions The visual cortex may contribute to visual discomfort in experimental photophobia, providing a rationale for investigating tSMS as a possible treatment for photophobia in migraine.

scholarly journals Lateral gradients significantly enhance static magnetic field-induced inhibition of pain responses in mice-a double blind experimental study

2013 ◽  
Vol 34 (5) ◽  
pp. 385-396 ◽  
Author(s):  
Balázs Kiss ◽  
Klára Gyires ◽  
Miklós Kellermayer ◽  
János F. László
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Static Magnetic Field ◽  
Double Blind ◽  
Pain Responses

Impulse magnetic-field therapy for insomnia: A double-blind, placebo-controlled study

2001 ◽  
Vol 18 (4) ◽  
pp. 174-180 ◽  
Author(s):  
Rainer B. Pelka ◽  
Christof Jaenicke ◽  
Joerg Gruenwald
Keyword(s):  
Magnetic Field ◽  
Controlled Study ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Magnetic Field Therapy ◽  
Field Therapy

scholarly journals Exposure to a Specific Pulsed Low-Frequency Magnetic Field: A Double-Blind Placebo-Controlled Study of Effects on Pain Ratings in Rheumatoid Arthritis and Fibromyalgia Patients

2006 ◽  
Vol 11 (2) ◽  
pp. 85-90 ◽  
Author(s):  
Naomi M Shupak ◽  
Julia C McKay ◽  
Warren R Nielson ◽  
Gary B Rollman ◽  
Frank S Prato ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Magnetic Field ◽  
Effect Size ◽  
Repeated Measures ◽  
Low Frequency ◽  
Controlled Study ◽  
Mcgill Pain Questionnaire ◽  
Healthy Human ◽  
Field Exposure ◽  
Double Blind

BACKGROUND: Specific pulsed electromagnetic fields (PEMFs) have been shown to induce analgesia (antinociception) in snails, rodents and healthy human volunteers.OBJECTIVE: The effect of specific PEMF exposure on pain and anxiety ratings was investigated in two patient populations.DESIGN: A double-blind, randomized, placebo-controlled parallel design was used.METHOD: The present study investigated the effects of an acute 30 min magnetic field exposure (less than or equal to 400 μTpk; less than 3 kHz) on pain (McGill Pain Questionnaire [MPQ], visual analogue scale [VAS]) and anxiety (VAS) ratings in female rheumatoid arthritis (RA) (n=13; mean age 52 years) and fibromyalgia (FM) patients (n=18; mean age 51 years) who received either the PEMF or sham exposure treatment.RESULTS: A repeated measures analysis revealed a significant pre-post-testing by condition interaction for the MPQ Pain Rating Index total for the RA patients, F(1,11)=5.09, P<0.05, estimate of effect size = 0.32, power = 0.54. A significant pre-post-effect for the same variable was present for the FM patients, F(1,15)=16.2, P<0.01, estimate of effect size = 0.52, power =0.96. Similar findings were found for MPQ subcomponents and the VAS (pain). There was no significant reduction in VAS anxiety ratings pre- to post-exposure for either the RA or FM patients.CONCLUSION: These findings provide some initial support for the use of PEMF exposure in reducing pain in chronic pain populations and warrants continued investigation into the use of PEMF exposure for short-term pain relief.

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