Neurological Differential Diagnosis

I feel like I am living an episode of House.

You know the part where House and his entourage sit around the office throwing out possible syndromes/diseases/disorders?  That is called a "Differential". And you know the part where he chooses one syndrome/disease/disorder that the others don't agree with?  Well that is kind of what happened at McMaster.

We got to McMaster only to find out they had mailed us a postponement letter pushing Leah's appointment back to the 19th.  Obviously we didn't get that letter so they agreed to see us anyway.  They went off in search of a Resident  who didn't have a caseload that day and found us Dr. Fudge.

Dr. Fudge and his student did a very thorough history and physical exam.  When I say thorough I really mean thorough - it lasted for almost 2 hours!  They asked tons of questions, and did a neuro assessment on Leah.  Then they left to go discuss it with Dr. Callen and his team. 

We could literally hear them doing the differential, and we saw them looking at her MRI.  Then they all toddled back into our room and began the explanation of their thought process and gave us a "working diagnosis".

According to Dr. Callen he would be "flabbergasted" if the tests he has ordered for Leah come back as negative for Narcolepsy with Cataplexy

So our working diagnosis is Narcolepsy.  Strangely enough, it was mentioned in a couple of comments from a reader at the very beginning and was discarded as I didn't feel Leah met the criteria.  I still don't think it really fits as so many of her problems are not included in the symptom lists.  No matter, regardless of how sceptical I (and others) may be, we are just so darn glad that we are moving forward.


They have sent of the paperwork for the government grant necessary to do the genetic testing in Boston.  This testing will tell us if she has the genetic form of narcolepsy.  They are scheduling a polysomnogram (PSG) and the multiple sleep latency test (MSLT). 

Basically those tests will tell us if she slips into REM sleep much more quickly than the norm.

They encouraged (can you believe it!?!?!) us to research Narcolepsy and become very familiar with it.  One of the first things we saw was the Epworth Sleepiness Scale   My mother and I score very high on it, so I guess a genetic link is possible (note to self: call the doctor for a sleep study for me!)


As well, he has agreed to do the test for Lyme disease!  He actually considered the probability of a positive finding.  You could see him thinking - he thinks like I do...rolls his eyes upwards as if he is looking at a mental chalkboard.  :)  He doesn't think it is going to show a positive result but he said it was a simple addition to the bloodwork he was already ordering.

So keeping with the "House" theme, I fully expect the tests to come back negative for Narcolepsy, and then they will pick something else to investigate.  And I am okay with that as long as they continue to investigate. And I know that at some random moment, Dr. Callen's eyes will gloss over and random thoughts and ideas will suddenly converge to give him the magical diagnosis that will set Leah's life back on the right track!

PROGRESS!!!!! :)

Well, we haven't found the magic bullet yet, but we are making progress!  First and foremost we got the orders for a MRI! 

But first a bit of history, a couple of weeks ago, before Leah collapsed for the second time, she had a very bad morning, very lethargic, no energy, not eating, extremely blurry and dizzy, with a bad headache.  We decided to bring her to the Children's Emergency at McMaster.  She was seen very quickly but we got the same response as usual, it isn't an emergency situation and wasn't something they could deal with, within the scope of their work.  They offered us two options, we could be referred to the Paediatrician on staff which would be a one time visit of a maximum 20 minutes, the plus side being it would be the next day.  The second option would be to be referred to a Consulting Paediatrician who would follow her case until its conclusion but would take a couple of weeks to get the appointment.  This option would result in the best possible outcome - someone who could give me a second opinion AND actually do something about it.  So the choice was obvious - wait a couple of weeks and get a second opinion.

A Consulting Paediatrician is a doctor without a regular roster of patients.  She receives referrals from hospital system for children that are in need of a higher level of care than a general practitioner can provide.  Once the "crisis" or medical need is over, care is returned to the general practitioner.  Prior to going to our appointment, I did a little research on her, I went to the website ratemds.com to find out how other parents felt about her.  The response was great!  Parents were extremely pleased with both her medical skills and her bedside manner.  A couple parents even said she figured out their child's problem when no one else could!  HALLELUJAH!  My own personal Dr. Gregory House!

So off we went, with previous test results in hand, my little green book detailing Leah's daily symptoms, complaints, appointments and treatments and a whole lot of hope.

This doctor was FANTASTIC!  She actually spoke to Leah, asked her lots of questions and only looked to me for clarification.  Then she settled her down with some books and then it was my turn.  She really, really, really listened, took copious notes on Leah, her siblings, her family and her friends.  She reviewed the test results and agreed with Leah's paediatrician in saying that it is a very confusing group of symptoms that don't appear to point to anything in particular.  However - and this is what sets her apart from the others - she does not think it is a good idea to just sit back and wait!  She has ordered the MRI, realizing that the Neurologist will want one when we finally get the appointment.  She has also sent out a referral to the Neuromuscular Specialist at McMaster.  We should be able to get an appointment with him relatively quickly.  She did hasten to add that this doctor can sometimes be lacking in bedside manner but he is brilliant.  Even if it turns out that he can't give us a diagnosis, he will be able to assist us in ruling out things.


All in all, the appointment lasted almost 90 minutes.  Not once did I feel rushed, or like I was wasting her time.  She has even gone so far as to assure us that if the wait time for the MRI is too long, she will contact us so we can go over to Buffalo MRI and have it done there.  I think that what makes me feel the most relieved (in a weird sort of way) is that she feels the urgency that I do.  She understands my desire to get answers or at the very least rule things out as quickly as possible. 


I actually slept last night for the first time in weeks.  I don't have any answers yet, but I feel so much closer!