Hi Mark
Sorry for the very late reply but this thread is fast and I am slow.
So: One extremely important requirement: a comparison of the Nightingale definition and the CCC, side by side...very similar but subtly different. Given the caveat that the Nightingale definition is "a codification (summary of historical ME)" by Dr Byron Hyde, I am wondering whether this could be taken as the definitive "state of the art" before the change in direction occurred, or whether there are other more established and formal definitions that are relevant? There would seem to be risks associated with merely putting these two definitions up against each other as if they were complete statements of a position, since they are necessarily both imperfect documents in any case: both have deeper contexts in which they would need to be considered, it would seem to me.
My understanding that the Nightingale document represents a summary of common findings in historical ME. A comparative analysis of historical ME researchers work on how they see ME, assessed against Hydes work in the Nightingagle document seems to be what you might be suggesting here. That would, I suggest be a good idea for an independent thread in a dedicated ME part of this forum.
Under the Nightingale definition, summarising all medical investigation into ME since 1955, injury to the central nervous system attributed to enteroviral infection was the main feature.
Whereas under the CCC, the disease is defined not according to this historical causal model based on an understanding of polio, but instead is defined in terms of the 'primary symptom' of fatigue.
Crudely speaking yes. The finer points between the two documents has now been kindly posted by Rlc.
Again we would seem to be looking at a kind of scientific revolution - a point of rejection of all summary of scientific investigations into a disease up to that date and of 'starting again' with a re-definition of the symptoms...and notably with subtly different symptoms that exclude a few of the key features of the original disease of ME.
Such scientific revolutions require extraordinarily strong evidence, it would seem to me. Perhaps I misunderstand, but I thought that science demanded some strong degree of proof that an existing theory is false before this can happen
I agree with these views and it is also my understanding that it was and remains the premise that, a scientific revolution would required extraordinarily strong evidence to prove an existing theory false.
And I might turn the quote above round the other way: you don't need to study the documents closely if you understand what they are, but if you don't understand what they are and what they purport to achieve, you very much do need to examine them closely in order to accept the position being claimed...and you need that documentation laid out clearly and referenced when the claim to understanding is being made.
I agreed with this and as a result was formulting a post on the distinctions but rLc has rendered that exercise redundant with an excellent and very thorough post at #159
http://forums.phoenixrising.me/show...rence-between-ME-and-CFS-to-the-public/page16
I said: Some of the CFS research, especially in the early days -did include patients from the Lake Tahoe co hort who Hyde apparently diagnosed as having ME.
You said: This sounds fairly sharp
So: while the origins of CFS lay in the Lake Tahoe cohort, the first outbreak of CFS, apparently, nevertheless some in the area were diagnosed with ME?
Dr Hyde at some point (pre or post I am not sure - someone else here might know, but I suspect it is post the formulation of the CFS definition) diagnosed those at Lake Tahoe as having ME. He is also on record as stating that he believed that Lake Tahoe was an ME outbreak. I am guessing here, but based on what I have read - I would say that would have been post the introduction of the 1988 CDC definition on CFS. I say that, because Hyde gave a public lecture here in Australia last year in which he acknowledged that he attended the meeting at Parish and Shelekov were invited to assist in defining the illness as Lake Tahoe, which they did not, as it transpires - participate in. Hyde though said, that he was not as knowledgeable as those two and was still learning about ME and so, left with them. If that was so, then I am assuming that at this time, he would not have put himself forward or called on (? dont know which took place) to examine the Lake Tahoe co hort.
Rlc has given 2 great historical summaries on this point with resepct to the role of the CDC elsewhere in this thread. So I wont repeat it here.
This seems quite odd, and quite interesting. If CFS is in some sense a version of ME with a few of the characteristic symptoms absent, what is going on here? Is CFS some kind of evolution of ME?
I believe we have to approach this carefully and factually.
It appears that Hyde reports- that Lake Tahoe was an ME outbreak.
The question however is, what evidence did the CDC have at the time of formulating that definition of CFS - that this was not a new illness they needed to define, but a old one that was well defined in pre existing literature and it was in fact ME?
This is something I have been trying to get to the bottom of.
If there was no evidence before the CDC at the time of formulating that definition of CFS - then all that can be said is - that they made a terrible mistake in thinking it was something else. (Hard to believe). But Holmes went to Lake Tahoe looking for mono if I recall (according to my recollection from Oslers Web and reports read in the forum here) and that is what he collected evidence of as I understand it. He brought that back and that was what was presented for the purposes of looking at the illness and trying to define it. Did he find mono amongst the Lake Tahoe co hort? Well that is possible. Hyde, Parish or Shelekov were not selecting the patients to see if they met the diagnostic criteria of ME. Holmes from memory, either selected the patients himself or was given some patients files from which he selected patients took histories and samples from memory of what I read in Oslers Web.
There is nothing to suggest that Cheney and Peterson knew it was ME and put that to the CDC. There is also nothing that I have found to date, which suggests that Parish and Shekelov put anything before the committee working on the definition, that the CDC was mistaken and that lake Tahoe was an outbreak of ME.
Therefore the CDC came up with a definition of on the basis of what they had - and it wasnt ME.
So was born this ''new'' strange entity called CFS and defined accordingly.
So according to Hyde, the patients at lake tahoe, were ME patients. But, there was never any formal evidence of this before the CDC. So the definition they came up with had nothing to do with ME. Therefore you cant really say that CFS as defined, is a version of ME because it is not. The CDC had no and presented no evidence of ME for the purposes of that exercise and there is nothing on the record to suggest that they were considering it.
But that is not to say - that the epidemic was not ME. It clearly was according to Hyde, just that the definition has nothing to do with ME.
For the same reason, it cannot be said that CFS as defined, is an evolutionary model of ME. CFS is at best, a horrible mistake and at worst, a fictional nonsense.
Though the subtext of what you state - raises an interesting side issue and one I have briefly considered and looked at myself and that is, as far as historical epidemics go - how similar or different was the ME lake Tahoe Co hort ? How if at all, did they differ from other co horts described in historical ME literature relevant to epidemics? There is some noted variations in some of the epidemics, from memory, which suggest the possible operation of different enteroviral strains (virus evolution and virility).
So your question is apt in that context. Are we looking at an evolutionary event? An enteroviral evolutionary event and how does it sit within the historic literature and what can it tell us generally, as well as - making our way through the mess in the medical literature that I also made mention of.
Again, this would make a great seperate thread in a dedicated ME part of the forum.
I have to mention the toxic mold at this point, to which several MCS sufferers like myself have long believed our condition is inextricably linked, and a form of which was and is - apparently - endemic to lake tahoe, and in season at the time of the outbreak. I have to wonder whether this mold represents some kind of bridge between the ME and CFS eras.
I would be more interested to look at the issue of what happens when you have an enteroviral infected ME patient exposed to mould and or chemicals? Where the lake Tahoe ME patients all exposed to mould? If so, and you did a comparative historic analysis of that epidemic as against others and found points of distinction that might suggest enteroviral evolution - you might have to ask yourself, is it enteroviral evolution or enterovirus coupled with mould exposure.
I said:
There was also a tendency - especially on the part of US researchers - in these early days (and perhaps for the reason I gave) to report in the literature, that in the UK, they refer to CFS as ME.
You replied in essence:
Potayto, potarto, there is a long history of this sort of divergence in the use of words and of pronunciation, it seems...none of which is helpful to understanding between "two nations divided by a common language"...
It is more than simply language, because implicit in it was the historical misunderstanding on the part of researchers - which only added to confusion. You see, the definition of CFS seems to have been settled and then they seemed to realise that it was an ME epidemic. So from what I can see, it looks as though from the papers I have read just after 1988, that the researchers - on the basis of funding grants obtained for CFS, had to use that term - but in studying the lake Tahoe patients and with the subsequent knowledge that they did have ME - made reference in the literature to the fact that they were really talking about ME ...which is why I think they made reference to the UK term.
What I can glean took place then - was a trend to do the same in subsequent literature but they were not using the lake tahoe co hort but a heterogeneous population selected under the CDC definition which possibly included people with PVFS, PVF, ICF and possibly the odd undiagnosed person with ME.
Phew. Time for a rest.