Tag Archives: deep brain stimulation

Becoming Bionic

A magical, slightly gross process is whirring away deep within the microscopic cosmos of my brain. Over the past past twelve months, tiny strands of protein have thankfully been wrapping themselves around the alien, metallic intruders that expertly navigated their way on a mission to blast electricity into the sub thalamic nucleus just millimetres from the brain stem.

It’s a remarkable world in there. So very complex.

Sleepy neurons have been dependent on being hand fed their levodopa meals – through copious amounts of pills – to produce an unusually limited supply of dopamine that was quickly consumed transmitting messages throughout the rest of the body. These same neurons have been put on a harsh diet. A new rationing regime has been introduced – less than one quarter of what they have been accustomed to receiving. The rest of their oversized portion has been replaced with essentially two enormous cow-prods – jumpstarting them into more efficient production. 

I imagine a world of chaos on this microscopic scale. An intimidating invasion preceeded by the most cataclysmic thunderous sounds and violent earthquakes as the drill-bits gave way to blinding light streaming into the dark landscape. One that was only previously lit by the gentle and peaceful crackle of electrical current as cells and neurons communicated in this once tranquil space. In this setting it is not hard to imagine why some of these worlds might rise up and fight, rejecting this new arrival with infection, pain and discomfort.

After 12 months, graciously, my little world has now completed its choice to extend a peaceful olive branch to the invaders. They are now part of the team, completely accepted and providing a valued contribution to a truly bionic world.

We probably have a lot to learn from these tiny dynamics!

Of course, all of this sounds a touch romantic (and I’m sure nutty!) but such radical treatment – not cure – for Parkinson’s disease was only ever a glimmer of hope for the future. Never able to promise anything. It required a leap of faith from an unknown cliff and into a thick mist. It was always going to hurt. But hope is a powerful motivator, a glimmer is more than enough. It allows us to wish, to dream the impossible dream, and sometimes it even drags us over the line to achieve it.

This hope, these dreams are shared – by my family, and in my truly blessed circumstance, with friends and connections beyond anything I deserve.

In many ways my dreams are now real. Our prayers answered in the affirmative. Some ridiculously out of this world technology gives me a new body and with it a new future. It has to be a new future. My new body is a different body, my new bionic, battery powered brain is different, and they bring new quirks to learn, new behaviours to become accustomed to. 

For me this means the closure of the longest chapter of my life, Principalship. A chapter that has been so life-giving and life changing, so insightful and so very memorable.

My core values won’t change, although they have been refined and put to the test, strengthened in the furnace. I have been privileged to dedicate my working life to service of others. A life that gives back more than it can take – and it can take a helluva lot! This sense of service may shift focus, and I await anxiously but positively for the grace that will direct this shift. It is a proactive wait and I am so very looking forward to strengthening connections with so many of you, re-connecting with others and of course starting new ones. Again, I am so blessed to begin this new chapter close to home. How incredibly valuable is time? and time I have – to spend with my beautiful girls, and my family. 

Bionic Man (Part 2 of 2)

So I now require regular charging and need to avoid roundhouse kicks to the chin…

With the first probe nestled into its target location. Rob picked up my forearm – testing for rigidity. Amazingly, he could pick up some relaxing of tone immediately – even before the current had been switched on – a ‘leshioning effect’. He then slowly paced me through increasing levels of electricity being emitted by the electrode.

We needed to determine just how much amperage it would take to have a significant improvement – and how much I could handle before incapacitating side effects gripped me and made life unbearable.  Rob started the ball rolling with 0.3mA. A tingling sensation, almost pleasant and not unlike a very mild pins and needles, surrounded my right foot.

Rob explained that when first turned on, the electricity can pulse a little, emitting more electricity before settling down.  We waited patiently for 30 seconds to make sure it passed, and obligingly it began fading immediately. My right arm loosened. He asked me to make a fist with my left hand – which should not usually have an effect on your right side. However for me, this action of making a fist in one hand would always turn the other arm into that of the ‘tin man’ patiently awaiting Dorothy – at the mercy of the elements; with the oil can mockingly just out of reach.

I gave Mary a squeeze.

Rob’s smile confirmed what I could already feel. Still loose. I was beginning to enjoy myself. As we climbed through 2, 4, 6mA… I felt better and better.

It’s working.

This is amazing!

At each increment Rob had me concentrate on my body – carefully trying to take note of any difference, the smallest patch of numbness or tingling. We would then run through speech exercises to ensure I wasn’t suffering any impediment, which can be a common side effect when stimulating this part of the brain.

“Puh, puh, puh..me, me, me..kay, kay, kay…British constitution”.

Some finger co-ordination: touching my own finger tips together in sequence; touch his finger, touch my nose, finger, nose, finger, nose. 

Finally my eye-tracking. “Keep your eyes on my finger, Todd”. His outstretched pointer finger leading my eyeballs, left then right, then left again. Too easy. Keep on cranking up the voltage!

Though, as life often relishes in reminding us, ‘all good things must come to an end.’

As we progressed further towards 8mA, I noticed the temperature climb. Subtly at first. Then exponentially. I broke into sweat and my confidence and comfort level came screaming back down to earth, crashing through the surface and tunneling towards the molten core.

“Please stop,” I begged as my plastic safety goggles fogged up.

Rob tried to reassure me, “We’re nearly finished”.

These following seconds were tough. At the time I couldn’t comprehend why they wouldn’t just turn the electrode off. But my feedback was providing Rob with further detail to triangulate the most perfect final location of the electrode. He hurriedly put me through my tests. 

“Puh, puh, puh..me, me, me..kay, kay, kay…British constitution”.

It sounded as though this ‘Energiser bunny’ was given inferior batteries.

Finger….Nose…. Finger…Nose. Not sure if it is sweat or tears sliding down my flushed cheeks.

“Follow my finger.” 

My eyes lagged with buffering akin to Netflix on the NBN. 

Not for the first time, nor the last, today – I was left pondering Einstein’s theory of relativity. Surely it had been minutes or hours of discomfort not the seconds that the devious clock suggested.

Then miraculously, the oven switched off abruptly, as the electricity eased back and then switched off completely.

That was intense. I had no emotional capacity to feel anything other than relief. Though a glimmer of concern must have been alight in a dark corner somewhere in my mind.

‘Is this blindness going to be permanent?’ I wondered as I tried unsuccessfully to make out some faces in the room. I could not clear the fog that had engulfed the theatre. Like a mysterious mist hiding all manner of monsters, limited only to my imagination.

Something approached me from the left. If I could move my head, I might have shimmied back in fear. The sweat that my body had delivered so efficiently in its attempt to cool me seconds earlier, now clung to me like a damp, cold sheet. My shivering brought on shaking. Not a minute ago I was desperate to be released from the torment of being on fire. Now I shook, freezing cold and blind.

I could sense the figure reaching out toward my head, yet I was powerless to defend myself. I squeezed Mary once more and relented. 

My anaesthetist lifted my goggles and I could smell the alcohol on the wipe, and as if with Jesus’ own spit and dirt combo; he cleared the fog on my plastic safety goggles and instructed for warm air to be blown between my sheets of a pretty amazing operating table.

“Okay, that’s the test probe done.” Rob’s face now as clear as ever. “Time to do it all again with the permanent electrode. Nearly half-way there Todd!” 

The lights in the theatre blinked off, minimising any electrical interference and allowing for the best possible signals to be picked up by the equipment. As Matt once more positioned the electrode; this time, the one destined to become one with my brain; as my body, over time, would coat it with proteins,encouraging it to assimilate with the brain matter around it; and like a migrant worker completing their citizenship exam, it will become a welcome, functioning part of the whole.

Having a good indication from the first test probe. Rob was able to move quickly through the tolerable range of electricity, and before long I was back at my limits.

It grew hotter. Sweat emanated from every pore. My speech slowed. My eye tracking failed. So tired. 

Once again, the odour of the alcohol wipe acted as smelling salts and my alertness lifted in harmony with the fog.

“Time to switch sides Todd. Matt will lock that lead in place and then there will need to be some more drilling”.

“Beautiful.” I lied – to myself more than anyone – although I was glad to see a few mouths turn slightly upward at the corners. One of the first management lessons I learned was “a happy worker is a good worker” -sage advice.

Despite the challenge of using different technology for the first time; Matt had my lead locked in place in no time. The pneumatic drill whirred to life.

A jet engine doesn’t quite describe the drilling in the right side of my skull. Instead the image of a helicopter comes to mind.

Still, I was left without ear protection and my head was being forced against the rotor mast.

This time there was room for more than only vibration and noise…

I have a filling in a molar at the top, right side of my jaw. I could feel it wriggle free.

The vibration and noise, though overwhelming to the senses, seemed to take a back seat, as every past negative dentist experience flooded my mind, mingling and moulding into a ball of orthodontic terror. That all too familiar pain of an exposed nerve radiated through my jaw up to the point of drilling and seemingly down through my body, yet also left and right. Like the points of a compass. I grimaced, and felt – rather than saw – my aneasthetist’s concern raise a notch as he edged closer.

Vibration, noise, shooting nerve pain…and then finally; silence.

“What’s the matter Todd?” The empathetic eyes of my anaesthetist, peering over his surgical mask added a mystical, almost telepathic quality to his question.

“I think I lost a filling.”

Although I was being honest, the absurdity of the moment yanked my sense of humour from behind the dark curtain in my mind; where it momentarily had retreated, curled itself up in a fetal position and rocked back and forth. I smiled and pushed the lingering pain from my thoughts, so very thankful to be untethered from the Boeing CH-47 Chinook.

The test probe was in place before I knew it, and Rob was once again walking me through the various tests, as the technician amped up the electrode.

Something was wrong.

My back arched, unnaturally. I grimaced with discomfort and I could hear myself begging for Rob to halt the procedure. As a feeling that I can only describe as that of fingernails dragging across the surface of a chalkboard (only amplified perhaps 100 fold)  gripped me and for perhaps the first time I questioned whether this had all been the wrong choice. Rob squeezed my left hand and instructed for the technician to roll back the power, and as that most disturbing feeling graciously subsided, I became aware that I had lost my grip of Mary in my right hand.

I was left completely depleted. Physically and emotionally. I desperately wanted to yield to the building black thunderclouds of fatigue that had been storming toward me from the horizon. Once again, Rob intervened. He guided me to reserves I didn’t know existed, as he patiently explained what had happened.

My wonderfully unique, asymmetrical brain includes a subthalamic nucleus that is considerably smaller on the right side than the left. This region of the brain is surrounded by a bank of fibres and our brave scout electrode, had found itself nestled into these fibres causing the excruciating discomfort.

“This is why we want you to be awake Todd. Nothing on the scanners could have alerted us to what you were feeling. From your MRI data the electrode was perfectly positioned.”

I shuddered with disbelief at the thought of waking up with that feeling, and the fear and misunderstanding that would have been just as unbearable.

Matt and Rob then discussed very briefly the new co-ordinates, and buoyed by a deep sense of relief I shook off the fatigue and stepped forward with them, finally with an accurate understanding of what Rob had meant by me being an active participant in this surgery.

With the test probe farewelled, replaced by the second new permanent addition to my brain. The lights flickered off and I was once again treated to the very rare and remarkable audio experience that is listening to my own brain’s electrical activity.

Fatigue now clawed at the door, finding cracks and boring holes; determined to break through. My eyes struggled to stay open as I failed to follow Rob’s finger for the last time, my speech slurred and my co-ordination left my control. We had reached the limit.

Rob smiled, thrilled with the result; as Matt once again got to work with tidying up. Locking the lead into place, before placing my scalp back into position and stapling me up. 

The white hot pain of a staple biting into place reminded me that my work here was done. There was no need for me to be conscious for the remainder of the procedure – they still needed to connect the wires down through my neck to a computer and battery in my chest just like Tony Stark.😉

“Do I need to be feeling this?” I enquired of Matt, who answered by calling out to my anaesthetist …

“KNOCK HIM OUT!” 

Bionic Man (part 1 of 2)

“Risin’ up, back on the street

Did my time, took my chances”

– Survivor

I’ve decided that my desire to have some sense of continuity and timing to my posts, needs to take a back seat to sharing the phenomenal experience of last week… 

How often are we presented with the opportunity to really look at and appreciate the amazing world we live in.

I perched on the edge of the uncomfortable vinyl mattress of the hospital bed; which despite its ability to raise or lower your legs, and to bring you closer to your lovingly prepared – no doubt –  yet appetite suppressing display of food; holding you forcibly upright to minimise baked bean stains on the thin bedspreads which attempt to impersonate a doona, by inadequately covering an oversized bath towel and lying atop crisp, white sheets.

My wife sits in the designated supporter’s chair, that sadly is too often left empty in many other rooms. She shoots me a puzzled look, at what would have seemed an out of context smirk taking shape on my face, which when combined with my new, excessively short back and sides hair style, was likely coming off a little more creepy than I had intended. Before the moment could become awkward, the instantly recognisable beat started. Mandy’s puzzled look melted away into a soft chuckle, which erupted into an average yet purposeful shared rocking out to “Survivor’s – Eye of the tiger”. 

The first technological marvel of the day, with no more than a mobile phone and a Spotify account we can carry with us the ability to soundtrack our lives. In the space of my short lifetime the leap from making mix-tapes by recording the radio on my brothers ‘ghettoblaster’ – to instantly streaming any one of millions of songs would be not even in the realm of possible science fiction – should I be able to attempt to explain to 12 year old me.

Our reality tv quality performance of ‘Eye of the tiger’ was cut short, by a last minute but welcome visit from my sister in law – ducking in before starting work – conveniently in the same building. Embarrassment was up there amongst many emotions, which somehow all seemed preferable to taking note of the ‘elephant in the room’, carrying satchels of fear, a grey sense of mortality and buckets of potential tears. Our embarrassed laugh was again abruptly interrupted, this time by the squeak of the wheelchair that beckoned for me to climb aboard, as hospital staff processed into the room. With the instruction given to Mandy to “Say your goodbyes” the elephant stampeded over her,  sloshishing its saltwater cargo all over my scantily gowned shoulder. 

My mindset was concreted in though, my determination steely if not cold. I had a quick cuddle and then made it clear, “It’s not goodbye. I’ll see you in a bit” and in the Spotify of my imagination, I cranked the volume up on ‘Eye of the tiger’. With slight of hand akin to a street magician, I palmed my relic of St Mary MacKillop, and climbed into the wheelchair, as though it were no more than a roller coaster cart at a theme park.

Perhaps a ghost train fits better, as I made my way up the corridor. I’m sure my imagination was in full flight, but it seemed as though every person we passed knew I was heading for surgery. Sad stares bore down on me, and I was reminded of a scene in ‘The Green Mile’; my ears pricked up almost expecting to hear someone holler: “Dead man walking”. I shook that picture out of my head – not helpful Todd.

We pulled up in the waiting bay outside imaging, where I was introduced to the first of many heroic characters – My anaesthetist and his assistant. They cleverly engaged me in conversation, achieving what I suspect were two goals.

1. To find out if there were any yet undisclosed pieces of information that might impact on the plans for administering any anaesthetics throughout the procedure.

2. (Probably most importantly) distract me as they located a suitable vein and inserted the first of many attachments to the backside of my left hand.

They were a great team and connected with me very quickly. Putting me at ease and bravely agreeing to help lighten the mood, as I again felt the caring but ominous gazes full of well-intentioned pity of onlookers as they wheeled me on into the CT scanning room. At this point the room resembled more of a Formula 1 pit, than a hospital room. A well organised and synchronised team scurried together, as I was rigged up into my head gear – a heavy ring that encircled my head with plastic ‘bullets’ that screwed right through the flesh securing it to my skull. The action of which was fore-shadowed by the nasty little pricks of local anaesthetic in six evenly spaced locations around my head. 

Firmly screwed into my frame, I had a chance to take a load off and rest on what now seemed like my ‘bed away from bed’. As I moved in and out of the CT scanner, and it whirred around me, try as I might I could not keep still. Technicians tried their best to adjust me – time and time again, to the correct position, but it seemed each time they dashed off to escape the radiation, having been off my medication for 24 hours now, my neck would go into dystonia and cramp just enough to tug the frame out of alignment. Still as frustrating as that must have been, my apologies were met graciously and – although essentially untruthful, I was politely assured “No, it’s not your fault.”

Eventually it was decided that the scan was good enough (I suspect they gave up!) and like ‘Bran the Broken’ heading to lure the Night King; on I was wheeled flanked by those charged with protecting my life into theatre. Completely reliant on the team around me, my future now lay in the hands of the experts already steeling themselves for the battle.

As I eased myself out of the chair and nurses helped me onto the operating table that presented like an altar – the clear focus of the room, where careful preparations were metitculously taking place. My frame was clamped, and I felt my neck tug as I was locked into place. From this point, my head will not be able to adjust to any motion; presenting a steady and still target for my neurosurgeon. At the same time, by limiting my head’s ability to counter movement from my body, an unlikely seizure or other violent movement, would no doubt break my neck.

Like a wobbly tooth, I couldn’t help myself from testing the clamp out. I attempted to roll my head left and then right, up and then down. Sure enough the hardware did its job and I became aware that my field of vision was restricted to only what sliding my eyes along their horizontal and vertical planes could achieve. It was then that I spotted my Neurologist standing at a computer screen in the back corner of the room. His task at that time was to analyse the CT scan taken earlier, in conjunction with the pre-surgery high definition MRI scan, to create co-ordinates for my surgeon to guide him as he probed his way from the top of my skull, through an asteroid field of vital brain functions, on the way down to the target zone, millimeters away from my brain stem.

Some memories are cloudy, though I’m sure it was ‘Gun’s n Roses – Knocking on heaven’s door’ that prompted me to roll my eyes toward my Anaesthetist, “Who’s playlist is this?” I enquired, silmultaneously appreciating the selection so far, for their quality and their irony.

“It’s Matt’s music” he responded, and although a tiny detail, the enormous weight of responsibility that sat squarely on the shoulders of my Neurosurgeon became clear to me. The consequences of a cough, a nervous twitch, a distraction…

On cue – Matt’s voice. “Okay Todd. This is probably the most painful part. It will sting a bit as I put some local in…” A good description in the end. I pictured the needle penetrating my scalp and spraying the anesthetic from left to right. My jaw tightened and I grimaced through the sting, I  adjusted the volume of the music in my head ‘…it’s the thrill of the fight, Risin’ up to the challenge of our rival’.

As I prepared myself for more injections, the delay was unnerving me. It must have been 20 or more seconds since the last jab. I cautiously opened one eye and then the other, before risking the question to my anesthetist “Is that it?’ Is he finished with the local?”

“Yep – all done Todd.” I couldn’t help but be flooded with renewed hope. If that was the hardest bit, I don’t know what all the fuss is over… I clearly misunderstood Matt’s comment.

‘Most painful’ and ‘hardest’ do not always correlate.  

“I’m still at least 10 minutes away” I sensed a little irritation in my Neurologist’s voice as the volume in the room dropped a level. I was caught between wanting my team to take their time – no need to rush this –   but also, the niggling thought of ‘How long does local last?’

“Ok, that’s it.” Rob’s targeting work in the corner was done, explaining to someone that the angle of the CT scan was out of alignment (due to my cramping neck) adding a layer of complexity to his critical targeting co-ordinates.  He relayed his list of co-ordinates to Matt, via an assistant who was transcribing on a slightly out of view whiteboard. Matt was also busy. He made a long c – shaped incision in my numbed scalp and folded it back on itself revealing my skull. I then mentally pictured him selecting his drill; as others went to work, fixing a drop sheet from the ceiling down to the front, still attached part of my scalp, to provide a barrier between the ‘messy side’ which was Matt’s domain; and the parallel dimension that I could see, which bore no resemblance to the confronting scene behind me. ‘Rob’s domain’ was clear of gore and as he settled in beside me gripping my hand with one of his own and resting his other reassuringly on my leg. My consciousness was entirely on this side of the dropsheet and would remain there for the rest of the show, effectively as far as fear and trauma goes, it wasn’t hard to distract the menacing  thoughts of my bared skull, blood, and drilling; as Rob stole my focus, talking me through each step, and his clear articulation of his expert understanding of every detail, kept me where I needed to be – on his side of the dropsheet.

It’s time. Rob shares with me that Matt will begin by drilling into the left side of my skull and as the left brain controls the right side of our bodies, we would be focussing on just that. As he made his way around to my right, I subconsciously transferred Mary into my left hand and tightened my grip. I was warned that the drill would be loud and unpleasant but would be over in a matter of minutes. In my mind I was nodding ‘…and the last known survivor stalks his prey in the night’ – though of course my head was perfectly still…Let’s do this.

Words could never adequately prepare me for the drilling. It started as one would expect with the sound of a pneumatic drill – a little too close to the ear but not terribly uncomfortable. Then, the drill bit made contact with bone.

Nothing else in the world existed.

My eyes instinctively closed. All was black.

My whole skeleton vibrated intensely and I might as well have been strapped to the engine of a Boeing 747. The only thing capable of taking the attention of my senses from the vibration, was the noise. The vibration. The noise. Maybe an exploding 747 engine…

Long minutes elapsed. The pilot relaxed the throttle. And the sounds of the theatre – able to compete again – ushered in reality. 

“Wow, yeah…that was loud.” An ironic smile escaped me, knowing that there was no way to accurately interpret my perspective – in English, at least. 

“Gee you have a thick skull!” Matt offered from behind the dropsheet, yeilding a broadening of my grin to near ‘Cheshire’ status. My brothers would have loved that. He then went about tidying up the hole with an instrument not requiring a jet engine; and inserting the first wire which would act as both a scout and electrical test, expertly piloted by Matt, to its target location deep into my sub-thalamic nucleus. Thankfully as pain free as predicted.

Rob’s look was intense, demanding my attention. He carefully and deliberately reminded me of my role. With all the imaging in the world and with the experience of hundreds of these operations behind them, it was only me who could report feelings of discomfort, tingling, numbness, or any sign that the electrode could be causing unwanted side-effects; or alert Rob to the need to adjust the target location – this was the whole purpose of staying awake. Although already tiring I committed myself to the highest level of alert that I could muster.