Updated Prosecution Medical Expert Opinion Summary - to include Child D
Child A
Dr Dewi Evans
"He rules out other conditions such as sepsis, a lack of fluids or hypoxia as causes, or contributing factors to the collapse.
He said he had "only one" conclusion, that Child A had received an air embolus, "through an IV line".
"
there was no way this could have been done by accident"."
Recap: Lucy Letby trial, Tuesday, October 25
Dr Sandie Bohin
"Mr Johnson: "What, in your opinion, killed [Child A]?"
Dr Bohin:
"[Child A] was killed by an air embolus."
Recap: Lucy Letby trial, Tuesday, October 25
Child A's mother wept in the public gallery as Dr Bohin said she was left with
only one "plausible explanation" for her son's collapse and death, which was an air embolism."
Lucy Letby: Disturbing pattern in baby deaths, nurse's trial told
Child B
Dr Dewi Evans
"
He says the cause of her collapse - like her brother Child A - was an air embolism, 'there was nothing else to explain this collapse, which was so sudden and unexpected', he said"
https://twitter.com/MrDanDonoghue
Dr Sandie Bohin
"Dr Bohin said other factors, such as infection or cardiac arrhythmia, could be discounted, and
the only conclusion left was "air embolus"."
Recap: Lucy Letby trial, Wednesday, October 26
Child C
Dr Dewi Evans
"He says infection was a part of Child C's status. He adds it did not cause Child C's death."
"He says while Child C had an infection, he was recovering from it, as he had gone off CPAP support, on to Optiflow.
"Respiratory wise, he didn't stay the same, he was improving."
"
He said there were three clinical scenarios - injecting air into the stomach that interfered with his breathing, or that air was injected intraveneously, or from a combination of the two"
Recap: Lucy Letby trial, Tuesday, November 1
Dr Sandie Bohin
"This was not a baby who was ill, this was a baby who was improving."
Dr Bohin's conclusion was that he had pneumonia, but that did not cause the collapse or kill him.
She added babies such as Child C do not collapse suddenly and without warning.
She said an infection would not be the cause as that would lead to a gradual deterioration in the baby, not a sudden collapse and no response to resuscitation.
She said
one conclusion for Child C's collapse was CPAP accumulation of air, the other being deliberate injection of air. She said
the doctors did not appear to have a concern as they had noted the abdomen to be "soft".
Recap: Lucy Letby trial, Tuesday, November 1
Child D
Dr Dewi Evans
Dr Evans says his conclusion in Child D’s case is that death was caused by an injection of air into her bloodstream.
Ben Myers KC, defending, asks Dr Evans why he thinks this. Dr Evans gives 5 reasons. 1. D’s collapse was rapid and v striking. 2. The presence of discolouration on D’s body “a pattern experienced [nurses and doctors] had never seen before and never since and it came and went.
3. Attempts to resuscitate D were unsuccessful. 4. The presence [at post mortem] of air in D’s blood vessels and 5. None of the other issues, eg pneumonia were relevant.
“What we have in [D’s] case is a full house of clinical characteristics consistent with her having suffered an air embolism, ie air has been injected into her.” says Dr Evans.
https://twitter.com/MerseyHack
Dr Sandie Bohin
"Taking into account the sudden nature of the collapses and the very quick recovery...I was very clear it wasn't infection, so the conclusion had to be something unusual and odd." Other conditions were crossed off as they 'didn't fit'.
She concludes the collapses were caused by intravenous air administration either through the UVC or the cannula.
Dr Bohin says with air embolus, the speed and quantity of the air administered depends on whether it is fatal. She says the first two administrations of air would have been small, but the third would have been larger to cause circulation to stop. Dr Bohin says the suddenness of the collapse, with skin discolouration, fitted with cases of air embolus, as did the presence of air found in the 'great vessels' on post-mortem x-rays. Dr Bohin adds she believed Child D died with pneumonia, not because of pneumonia.
Recap: Lucy Letby trial, Friday, November 11