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Expert medical witness Dr Sandie Bohin, who prepared a report reviewing the death of Child D, is now giving evidence
Looking at Child D's first collapse on a morning in June 2015, Dr Bohin says she would be "surprised if an infection alone could cause that catastrophic a collapse"
Dr Bohin says Child D was in 'good condition at birth', asked to explain her collapse 12mins after being born the medic says this could be down to the infant being held incorrectly by the child's parents
'No disrespect to the parents, but new parents are not very confident about the way they hold babies, they can put the babies chin on the chest and have head flop forward, that can collapse windpipe', she said
'I cannot tell whether this was a clinical collapse because of illness, or mechanical blockage because of unusual position of the head', she added. Child D recovered from that initial collapse 12mins in and was placed on the neonatal unit
Dr Bohin said despite having pneumonia at birth, Child D was 'improving' and was 'stable'. She said there was 'nothing to indicate that death was imminent'
Asked what her conclusion was on the cause of her fatal collapse, she told jurors 'Taking into account the suddenness of the collapses and quick recovery, I was clear that this was not the infection, I was looking at something else and that had to be unusual, something odd'
She added: '(Child D) had air administered to her and that was the cause of the collapses'. The medic said this was administered either through the UVC line or the cannula in her hand.
Ben Myers KC, defending, is pressing Dr Bohin on her diagnosis. He noted that she had been searching for something 'unusual'. 'Are you just trying to find any evidence to support your air embolus conclusion?', he said. Dr Bohin: 'No, absolutely not.'
Mr Myers is now asking the medic 'what basis' she has for her conclusions as he points to research on air embolis which is based largely on experiments on rabbits, dogs and piglets. She says 'that’s the only method of research we have'
We're now back. Dr Bohin is continuing to face questions from Ms Letby's defence barrister Ben Myers KC
Mr Myers asks Dr Bohin if she has 'sought to minimise certain facts that show how unwell (Child D) was' 'No I have not', Dr Bohin says
Mr Myers said the whole clinical picture showed Child D was 'very unwell' upon birth, Dr Bohin does not agree. Describing the moment when the infant required resuscitation 12mins into her life, she says that was 'an event' that needed 'some intervention'
Mr Myers quotes evidence from Child D's mother, who told jurors last week: 'I had her, skin to skin, she didn’t really have any movement, she was quite limp, she didn’t have a good colour and she seemed to struggle to breath' Mr Myers says that shows Child D was 'very poorly'
Dr Bohin says that is the 'interpretation of a very worried mother'
Mr Myers again says asks Dr Bohin if she is trying to minimise the poor health of Child D. She says 'I'm not trying to minimise anything, my duty to the court is to look at all the evidence in an impartial way'
Prosecutor Nicholas Johnson KC has just read a summary of Ms Letby's police interviews in 2018 and 2019 which related to the death of Child D. In those interviews Ms Letby "denied administering air" into the bloodstream of Child D.
"She maintained that she did not do anything deliberately to (Child D)", Mr Johnson said. Ms Letby also told police in those interviews that she "could not remember" carrying out Facebook searches for the parents of Child D in the days after her death
Court has adjourned for the day, back Monday.