
04/24/2025
When my friend, the Egyptian interventional psychiatrist (now practicing in the US) posted about doing TMS on a Parkinson’s patient who had Deep Brain Stimulation (DBS) electrodes last year, I was very surprised and intrigued. Electrodes are normally a strict contraindication in TMS because two disastrous outcomes could potentially happen: 1) The magnetic field could cause the electrode to overheat and irreversibly burn brain tissue. 2) The magnetic field could potentially move the electrode away from its target, thereby restoring the tremors that a brilliant team of neurosurgeons, nurses, and neurologists had worked very hard to correct
I shared Adel’s post with my former boss, mentor, and neurosurgical pioneer, , at Saint Louis University School of Medicine. Known as “The Father of Neuronavigation” Dr. Bucholz had invented what later became known as the StealthStation from MedTronic back in the 1990’s. In overly simplistic terms, this was essentially “GPS for the Brain” helping to ensure complete removal of brain tumors and greatly improve outcomes.
This technology also enabled the precise targeting of electrodes to make DBS surgery possible. This is a life-changing surgery that Dr. Bucholz has done numerous times.
Not long after I sent the post to Dr. Bucholz, he referred a DBS patient to This patient had successfully undergone DBS surgery for his Parkinson’s and his tremors were no longer occurring. However, he was still severely depressed. After trying antidepressant medications to no avail, Dr. Bucholz sent him to us.
After reading Adel’s work and consulting with him, Dr. Bucholz, and , we determined that since his electrodes were MR-compatible, they might be safe for TMS. We examined the specifications for the electrodes to confirm that they were non-ferrous, had non-magnetic properties, and were MR-compatibl
Still…I was nervous. Despite confirming all this, the fear of possibly causing irreversible harm gave me pause.
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