Probably this is old news for many of you, I have not read about it before, so thought I’d post.
Magnetic stimulation of the cavernous nerve for the treatment of erectile dysfunction in humans
*, O el-Sibai2
and AA Sha®k1
Department of Surgery and Experimental Research, Faculty of Medicine, Cairo University, Cairo, Egypt; and
Department of Surgery, Faculty of Medicine, Menou®a University, Egypt
A recent study in dogs has demonstrated that magnetic stimulation (MS) of the cavernous nerve
produced an increase of the intracorporeal pressure and full penile erection.
In view of these results, we tested the possible application of this procedure in humans with erectile dysfunction
(ED). The study comprised 32 patients with ED (age 38.39.6 y) and 20 healthy volunteers (age
36.88.8 y). Routine erectile function tests suggested that impotence was neurogenic. A magnetic
coil was placed over the dorsal aspect of the penis in the vicinity of the symphysis pubis.
MS was performed using a stimulation of 40% intensity, 20 Hz frequency, 50 s on and 50 s off for 10 minutes
duration. In the healthy volunteers, the coil was placed as aforementioned but was not activated.
The intracorporeal pressure was recorded and penile tumescence and rigidity observed during MS
in the patients and without stimulation in the controls. MS led to gradual increase in length and
diameter of the penis until full erection was achieved; the penis became ®rm, rigid and pulsatile.
The intracorporeal pressure increased signi®cantly (P<0.0001) at full erection. Mean latency to
full erection was 19.33.4 s. Upon off-stimulation, penile erection and intracorporeal pressure
returned to baseline after a mean of 22.73.2 s.
Penile and pressure response to MS was resumed after an off-time of 50 s. The response was reproducible
in®nitely if the off-time was observed. The
controls showed no penile tumescence or rigidity or increase of the intracorporeal pressure. In
conclusion, MS of the cavernous nerve is effective in inducing penile rigidity. It is a simple, easy
and non-invasive method which has no adverse effects. It might prove to be suitable for
application in patients with ED. International Journal of Impotence Research (2000) 12, 137±142.
Since the full text is free, I uploaded it here. The device used is a commerciallyavailable magnetic stimulator ( (High-Speed MES-10,
Cadwell, Kennewick, WA); no idea of how it could cost or if it is safe continuative use.