By the way the White House wishes everyone a happy ramadhan kareem. This is one of the reasons why I like the guy :)
< http://www.whitehouse.gov/blog/Ramadan-Kareem/ >
From Sam to Simi to Saims :) Everything passes. Everything changes. Just do what you think you should do...
Hypothesis:
Premise – The process of embolisation is thought to be an early indicator for the onset of dementia. Tiny atherosclerotic plaques give rise to tiny break off particles (named emboli) which travel around in the cerebral circulation. In some cases, these tiny emboli can become lodged in narrow vessels thus decreasing the blood flow and oxygen to certain areas. The decline in cerebral parameters is thought to contribute to the memory decline associated with dementia.
Aims and Objectives – Based on the above hypothesis my project had a number of aims and objectives to fulfil, which were as follows;
- 1st – To screen patients and if they were emboli positive, then the participants underwent further testing where cerebral oxygenation levels (NIRS) and blood flow velocities (TCD) were analysed to see if there was a change in parameters associated with the presence of emboli.
- 2nd – Compare the cerebral parameters of the patients with dementia in the study to normal healthy volunteers of a similar age to see if there were any significant differences between the two groups, which may help to answer some of the questions linked to this area.
- 3rd – To evaluate potential therapies for dementia by analysing TCD and NIRS parameters on a monthly basis. Prior to this the patients were randomised to receive each of the following drug phases, Atorvastatin, Clopidogrel or a no treatment phase.
Methods:
My study had two protocols:
Protocol 1 – Testing normal subjects and patients with dementia.
The aim was to recruit 20 normal and 20 patients with dementia. We ended up with a total of 43 participants - 23 normal subjects and 20 patients with dementia. Both groups of participants (normal and dementia) underwent just a single test session with identical testing procedures. The session involved using TCD and NIRS probes to measure the cerebral parameters whilst the participants underwent the CANTAB test method followed by the MMSE and a full medical history. The results from both groups were analysed to see if any differences could be detected. From all the participants tested, 10 normal subjects were age and sex matched to 10 of the patients with dementia and their results were analysed in greater detail to see if age and gender had any affect on the cerebral circulation. The pictures below show the typical output from each of the methods used (TCD, NIRS, CANTAB).
Protocol 2 – Patients analysed from the drug trial.
These patients were selected from an ongoing clinical trial. 10 patients that had completed the trial in full had their results analysed. Each participant underwent a screening test to see if they were emboli positive of negative, If emboli positive, the participants were randomised to receive the different medications on a monthly basis followed by a month long ‘washout’ period between each drug. At the end of each month (and thus at the end of each different drug phase), the participants underwent 2 x one hour long TCD sessions. Each scan last one hour and each phase requires two scans therefore a minimum of 6 scans per person. A total of 10 patients equals a minimum of 60 scans. These 10 patients also had a monthly MMSE test and a blood sample that was analysed for Interleukin 10, an inflammatory marker.
Results and conclusion: Papers are being written for publication so I will post the link online soon.
Taken by one of the VSU staff. Me working through about a 100 scans (Protocol 1 – 43 scans and protocol 2 – minimum of 60 scans. I look cheerful don’t I?
Further work: Things I would further like to investigate (provided I had the funding and time) would be...
1) Larger patient numbers to increase the validity of my results
2) Validation of CANTAB tests to form part of a diagnostic method
3) Assessment of other neurological defects such as Parkinson’s using the CANTAB method
4) Comparison of other cognitive assessments such as the MMSE, CAM ICU and so on
All in all I enjoyed my project immensely. It was a lot of hard work, long nights and I often felt like packing it all in but I guess I have a strong stubborn streak. And I’m grateful it kicked in because it gave me the fantastic opportunity to learn many things about life in the medical world. Aside from the science/ clinical aspect of the project, from my placement I also learnt many other non-medical stuff.
Two major learning points for me were...
1) Patient responsibility – It seems kind of obvious but some people get so caught up in the end result that they forget everything else. It’s essential to keep patients well informed at all times as they often panic and become anxious very quickly. I learnt that theory and practice are very different in real life. It is VERY hard to recruit people as they can often be very sceptical but mostly scared. Sometimes it’s not even the patients but their carers that are reluctant to some extent. I also learnt very quickly that you must always to be very clear with your aims and what you are doing. Furthermore working with vulnerable populations; especially people with dementia that are often scared/confused, requires the utmost care and attention. Old or young, patients need plenty of patience and need to be constantly reassured. Personally I found those who tried to be a friend and not just their doctor/nurse/researcher or whatever were more successful than those who were strict professionals. I’m not saying that the professional boundaries are not required as they are vital working in such an environment and as part of the clinical team we shouldn’t get too attached but at the same time we should try to be a friend as well, as it helps to break down a lot of barriers.
2) Interdisciplinary teams – Communication is key! Bad communication leads to a lot of infighting between staff and placing blame back and forth as I observed in other departments. It’s bad for staff morale and also for junior staff i.e. students such as me etc. Although I didn’t have any clashes myself – it did show me that sometimes medicine isn’t always about saving lives and includes building on skills that maybe aren’t linked to your scientific and clinical knowledge. Those experiences help make you a good all rounder. I’m sure that all teams go through a few rocky patches but unless they work through it, they’re not doing themselves or their patients any favours. I’m pleased to say that the clinical team I worked with are genuine hard working individuals who are dedicated to their work. I couldn’t have asked for a better place to learn :)
So there you have it... the story of my dissertation. Here’s hoping I get good marks for this past year and for my dissertation (iA). The pictures below show the clinic and work areas, my equipment and patients being tested.
Disclaimer – I apologise in advance if anyone dies of boredom reading this post. It wasn’t my intention ;)
My dissertation - for which I will hopefully get a decent mark (iA)
... funny I know :) Please feel free to order it from here if you really want to own one :)
So on Thursday night with my dissertation completed to my satisfaction, printed and nicely bound, I thought I could afford to relax a little the night before my submission deadline. TEDx Leeds on a Thursday evening with my cousins. Ok maybe a little geeky but I was genuinely looking forward to it. I should have been there... but instead I spent the evening surrounded by blank CD's waiting to be filled with study data and statistical analysis spreadsheets. I guess archiving my study data took much longer than I had expected. A little disappointed with not being able to go but at least I had the satisfaction of knowing that work wise everything was done properly.
I thought about the families that had lost loved ones and what their lives must be like and whilst everyone else got up and went about their day; I remained seated on the cold stone steps. For some reason, I felt incredibly bad that I had forgotten and part of me couldn’t understand why. I wasn’t personally connected to any of the 9/11 victims so why this sudden guilt? And then it hit me. Whilst I was going about my daily life, doing what needed to be done, how easy had it been for me to forget those we had lost? I don’t just mean the people associated with this day, but people closer to home - our own loved ones, our family and friends. If I could forget this day that was incredibly well documented and talked about, how easy would it be for me to forgot those people that I love who are no longer in this world. Those people that aren’t well known to the rest of the world but for me they hold a special place in my heart.
In all honesty that scared me; that I may one day forget and I made a promise to myself that I would try and avoid that all costs. However this past year at the hospital has taught me that sometimes it is out of our control. The patients with dementia had no idea that they would be struck down by this terrible illness and in essence they have been stripped of their memories. It has made me appreciate life a lot more and I learnt (from my own patients in fact) that we should cherish every moment as we never know when we may lose it all. And so I believe I owe it to those that have gone; to keep their memory alive. Some people might say that it is unwillingness on my part to let go of the past, which they may deem as unhealthy. However I see it differently. It is those losses that have made me who I am today and taught me some invaluable life lessons. To forget those people would be an ungrateful act on my behalf.