Turning off Tremors with Surgery
By Megan McCannNeurosciences January 30, 2012
Tom allowed cameras to tape his surgery as it happened. DBS involves implanting small electrodes into very specific region deep in the brain to deliver continuous high frequency electrical impulses. Each electrode is connected to an extension wire that runs under the skin down to the chest where a battery pack is implanted. This pack acts as a ‘pacemaker’ for the brain and helps control the tremor.
What’s truly fascinating about DBS is that the patient is awake for part of the operation. Tom became a member of the surgical team, helping the neurosurgeon and neurophysiologist determine the perfect spot for electrodes by responding to their commands and answering questions. He was asked to mimic bringing a glass to his mouth because this was something that was impacted greatly by his tremor. When the right spot was found, it was obvious immediately and Tom felt the difference. The tremor stopped in his hand and he announced “Doc, you found ground zero!” A moment he remembers vividly.
I had the pleasure of catching up with Tom in late November and I’m happy to report that he’s doing extremely well more than six months post surgery. In most DBS cases, in the months following surgery the implanted battery pack is programmed to achieve the optimal balance between stimulation and medication. In rare cases, the surgery itself turns off the tremor by causing what is known as a micro-lesion effect. Tom was one of these unique situations; since surgery his device has not been turned on and his tremor has not returned. He is grateful to be able to drink a glass of water, make a sandwich, and even write checks to pay his bills; all things that were limited by his tremor. As Tom put it, “It’s like I’ve been given back a new life.”
To learn more, view Tom’s journey.