Dramatic Response of Resistant Obsessive Compulsive Disorder to Repeated Transcranial Magnetic Stimulation on Right Supplementary Motor Area

The response rate to the treatment of obsessive compulsive disorder (ocd) is 21.6% to 61.3%, which shows a relative resistance to current treatments and a need for novel therapeutic approaches. here we report a case of resistant ocd with fast and dramatic response to a relatively new method of repeated transcranial magnetic stimulation. in this method a pulse magnetic field emits from a coil over the surface of the scalp to induce a localized electrical current in the cortex below. cortical activity can then be either inhibitedor stimulated. the patient was a 40-year-old woman withsevere ocd who admitted to our psychiatric hospital. she was treated with 10 sessions of rtms (110% intensity, 1 hzfrequency and duration of 30 minutes per day / a total of 1200pulses per day) on right supplementary motor area. he rimprovement evaluated serially with yale brown scale. by the end of the 2nd day she reported a major improvement of symptoms. dramatic improvement was observed in her obsessive and compulsive behaviors, and avoidance recovered completely. she also reported significant improvement inability to control obsessive thoughts and impulses, and anxiety symptoms. since repeated transcranial magnetic stimulation isa low risk method with almost no interaction with the common medications, as well as the faster response obtained by usingthis method, it can be used as an add-on treatment in resistantcases of ocd and even in the initial stages of this disorder.