Thanks @Typicalwave
Here's what Johnson said about Child A in his opening speech for the prosecution
"Doctors observed "an odd discolouration on Child A's abdominal skin - flitting patches of pink over blue skin that seemed to appear and disappear". Mr Johnson said: "This proved to be the first of a series of similar presentations on the skin of babies suddenly and catastrophically collapsing at the CoCH NNU over the succeeding months. "It is a hallmark of some of the cases in which Lucy Letby injected air into the blood streams of some of these small babies."
Here's what Evans said about Lee and Tanswell in his examination re Child A
Right. Yes. First of all, just briefly about this
paper, that is paper by Lee and Tanswell. And it's probably the best known paper in relation to pulmonary vascular air embolism in the newborn. It's published in 1989. So despite being over 30 years ago, it's a very
well-known paper -- and the other reason it's well-known for British paediatricians is it was published in the Archives of Disease in Childhood, which is a monthly
academic journal that all paediatricians receive. So therefore it's the most so the Archives are the most widely read journal from paediatricians. Anyway, just to so this is not some obscure journal, you know, that nobody ever reads.
Right. In terms of this description, if babies
collapse they become hypoxic, and the usual change in colour is they go blue. Okay? So they become cyanosed. If their blood pressure drops, they may go white.
You know, because there's no circulation. So therefore the colour changes you find in collapsed babies, collapsed children, is a combination of blue and white
because they are white if there's no blood getting into the peripheries, into the skin, and they're blue if the blood that does get there is hypoxic, in other words
lacking in oxygen. So that's what we're used to seeing in babies who collapse because of infection or any other cause, whatever.
So therefore what we've got here is:
"Bright pink vessels against a generally cyanosed cutaneous..."
You know, relating to the skin. So the fact that it's bright pink, now, that is remarkable. It's very unusual. It shouldn't be pink. You know, or if it's pink, why has the baby collapsed? It doesn't make sense.
Their interpretation is absolutely correct. They attribute it to the direct oxygenation of red blood cells in other words, red blood cells have got oxygen in them and adjacent to free air in the vascular system. In other words, there's air in the circulation.
You know, air or oxygen in the circulation.
Q. So air is 21% oxygen?
A. And air is 21% oxygen. So this is remarkable. You should never, ever, ever have air in your circulation because of because it's dangerous. And if the tissues continue to be purely perfused and oxygenated so they are really saying this makes no sense because we've got pink colouration and yet
we've got collapsed patients. This shouldn't happen.
And they attribute it, quite correctly, to the fact that the cause is air embolism: air has got into the circulation.
And later:
If members of the jury and others accept what Dr Jayaram and others say about the pattern of discolouration, you know, the pattern of discolouration and flitting movements and the redness and the pinkness as well as everything else. If -- if that evidence is accepted, that is what you get in air embolus.
Q. And you base that upon what you've read, the description in the report by Lee and Tanswell, don't you?
A. Yes.
And from Johnson in his closing speech:
Mr Johnson lists the common events for the babies in this indictment by categorisation. Unusual discolouration: Child A, B, D, E, I, M, O, H.