Anna Henry raised the flute to her mouth, took a deep breath and recalled from memory the notes of one of her favorite classical concertos. Her fingers flitted over the keys as she slowly, carefully played each note. After she finished the song, the room burst into applause.
But this wasn’t a typical concert performance.
Henry, 63, was lying on her back on an operating room table surrounded by doctors and nurses. Part of her scalp was peeled back to expose her skull. Surgeons had drilled two nickel-sized holes into her skull and inserted a tiny 1.3 mm-thick electrode into both sides of her brain where her thalamus is located.
The surgical procedure, called deep brain stimulation, is used to treat the neurological symptoms of certain movement disorders. Surgeons implant tiny electrodes into the brain to deliver a constant electric current that significantly reduces movement and neuropsychiatric issues.
“Deep brain stimulation is a really fantastic tool in how we can modulate a perturbed, dysfunctional system in the brain and make it more normal,” said Albert Fenoy, M.D., neurosurgeon with the Mischer Neuroscience Institute at Memorial Hermann-Texas Medical Center and UTHealth, who specializes in the procedure.
‘Resetting’ the brain
Although the exact science and mechanisms behind its therapeutic benefits are unclear, deep brain stimulation has proven to be highly effective in “resetting” the brain and eliminating tremor.
“Why these patients have all these issues, like Parkinson’s disease, is because a circuit is abnormally functioning. It’s oscillating at a rate that, for whatever reason which we still don’t know, is wrong. It’s causing the detriment that they’re experiencing,” Fenoy explained. “By overriding that abnormally oscillating circuit with high frequency stimulation, you can override that dysfunction and train it to be a more normalized firing pattern.”
The U.S. Food and Drug Administration has approved deep brain stimulation to treat four conditions: essential tremor, Parkinson’s disease, dystonia and obsessive compulsive disorder. Because of its effectiveness, researchers are studying deep brain stimulation as a possible intervention for chronic pain, post-traumatic stress disorder, major depression and other conditions.
Deep brain stimulation has been shown to have a high success rate for patients whose conditions no longer respond to medication.
“A lot of patients, unfortunately, go into denial and say, ‘I don’t need brain surgery for my tremor.’ Every patient who has surgery says, ‘I’m so glad that I had it.’ But they have to overcome that early [hesitation],” Fenoy said. “All patients have success. Our goal is to greatly reduce their tremor. Will it be 100 percent gone? I don’t guarantee that for any type of surgery, but the tremor will be 70 to 80 percent better than it is now. That is a vastly significant improvement.”
A better state
For Henry, deep brain stimulation was her final hope. She knew early on in her childhood that she would inherit her father’s shaky hands. He suffered from a disease called essential tremor, the most common movement disorder.
Henry began experiencing tremors in her left hand and fingers in junior high. It started with a slight quivering in her left hand, but as the years went on, her tremors intensified to a point where she could no longer perform simple everyday tasks with her dominant left hand, such as writing her name, drinking soup or sewing. The combination of beta-blockers and an epilepsy drug prescribed by her doctors—propranolol and primidone, respectively—no longer worked and caused muscle weakness and eye problems.
“It was frustrating to see that [control] disappear gradually and just to realize that my control wasn’t what it used to be,” she said.
Worst of all, Henry’s tremor prevented her from doing what she loved the most: playing the flute. Henry is the principal flutist in the Big Spring Symphony and a music teacher who has been playing the flute since she was 11 years old.
“The ability to express things through my music in a way that I’m used to isn’t there anymore, no matter how hard I practiced,” Henry said. “I love practicing, but I’ve gotten to the point where I don’t like practicing because I’m not getting anywhere with it. It’s not making me improve like it always had.”
Henry’s neurologist in Lubbock approached her four years ago about the possibility of treating her tremor with deep brain stimulation, but the idea of brain surgery was frightening to her.
“At that point, I didn’t want anybody poking a hole in my brain,” Henry said. “As the symptoms got worse, the proposition of doing that got a little less daunting, especially when it came down to keeping the tremors for the rest of my life, letting it get worse and giving up playing—or going for it.”
She flew to Houston with her husband, Bob, on Monday, March 26. The following morning, she met with her surgical team and prepared for the operation. Henry, who arrived at the hospital with short, strawberry blonde hair, had her head shaved and was fitted with a stereotactic frame to secure her skull in place before she was wheeled into the operating room.
Her surgery unfolded in two parts: first, surgeons inserted the electrodes into the thalamus, which modulates and fine tunes movement; and second, they implanted a rechargeable battery pack in her chest that will last up to nine years before it will need to be replaced.
Henry’s anesthesiologist administered a local anesthesia to the scalp to numb the pain, but Henry was wide awake for the first part of the surgery. Fenoy and his surgical team made an incision across the front of her head and another on the side. They gently peeled back her scalp and used a special drill to bore through the 7.1 mm of bone in her skull. Fenoy then inserted the stimulating electrodes through the holes to her brain and applied the electric current.
The result was like flipping a switch. Prior to the surgery, Henry’s neurologist, Mya Schiess, M.D., of the Mischer Neuroscience Institute at Memorial Hermann-Texas Medical Center and UTHealth, ran a few motor control tests. Henry could barely sign her name, let alone hold a pen. When handed a cup of water, her hand shook so intensely that the water splashed inside the cup.
But after the electrodes were placed in her brain and the thalamus was stimulated, Henry’s hand was still and stable, without a single detectable tremor. When she signed her name a second time, each pen stroke was smooth and clean. Her handwriting was legible for the first time in decades.
The surgical team handed Henry her flute to test if her hands were stable enough to play. As she remained on the operating bed, she lifted her flute to her mouth and treated everyone in the operating room not only to a sweet melody, but the joy of seeing her tremor disappear.
“[Deep brain stimulation] works amazingly well,” Schiess said. “If you have a tremor that is truly interfering with hand function, lifestyle, head or voice, honestly, there isn’t a medicine out there that’s going to really put you in a better state.”
For Henry, deep brain stimulation helped her get back to doing what she loves. Although her tremor had interfered with her quality of life and nearly put an end to her musical career, she refused to quit.
“My folks lived through the [Great] Depression,” Henry said. “If there’s anything they taught me, it was that an obstacle is not something that stops you; it’s something you find a way around.”
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Today’s #VeteranOfTheDay is Army Veteran Elvis Arthur Mason. Arthur served from 1942 to 1946 and 1950 to 1952. Elvis was born in October 1921 in Elberfeld, Indiana. He moved to Oakland City, Indiana and was drafted into the Army at the age of 20. Elvis completed basic training at Camp Swift, Texas and was assigned to an infantry regiment. He also completed swamp training, desert training and mountain training in Louisiana, California and West Virginia, respectively. Elvis’s unit was deployed to Europe and landed in England shortly after D-Day. Elvis traveled to France and volunteered to drive gasoline to other allied camps. His unit engaged in combat for 100 consecutive days and moved through France, Germany, Luxembourg, Belgium and Holland to push the German army back. Elvis took over as platoon leader during this campaign and credited the platoon’s camaraderie for helping the soldiers get through the difficult time. Elvis briefly remained in Europe after Germany surrendered and participated in the liberation of a poorly maintained camp of German citizens. He then returned to the United States and was preparing to travel to Japan when the Japanese surrendered in 1945. Elvis continued to serve at Camp Shelby, Mississippi and Camp Butler, North Carolina before he was honorably discharged in December, 1945. He joined the Army reserves and was called to join the Korean War in 1950. He reported to Fort Leonard Wood, Missouri in October and served in Japan and Korea, where he helped to build roads and airstrips for artillery planes. Elvis was awarded the Purple Heart and a Bronze Star. He passed away on July 14, 2012 at the age of 90. We honor his service.
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