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A BABY monitor at Lucy Letby's hospital was 'broken' when babies died on the ward, a leaked document revealed.

Evil Letby, 34, is serving her while life order after being convicted of murdering seven babies and attempting to kill six others on the neo-natal ward of Countess of Chester Hospital.

Lucy Letby is currently serving out her whole life order sentence at HMP Bronzefield
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Lucy Letby is currently serving out her whole life order sentence at HMP BronzefieldCredit: PA
An inquiry into the events surrounding Letby’s crimes is ongoing at Liverpool Town Hall and is expected to last into 2025
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An inquiry into the events surrounding Letby’s crimes is ongoing at Liverpool Town Hall and is expected to last into 2025Credit: Getty

The monster became Britain's most prolific child killer and was handed a second whole life tariff after being convicted of attempting to murder a baby girl following a gruelling retrial in July.

As reported by the , leaked documents have now revealed a machine to monitor the neonatal unit babies was broken during the spike in deaths.

According to the outlet, a report from the hospital showed from March 2015 to June 2016, a piece of equipment that measures oxygen and carbon dioxide levels in blood was faulty.

The machine was "the first port of call" for analysing blood glucose levels but reading were "not accurate".

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Temporary heel prick blood tests were being used instead for results and the risk register report warned this could carry a safety issues.

This information was not told to the court during Letby's trial.

Michele Worden, a former advanced neonatal nurse practitioner at the Countess of Chester neonatal unit, said the monitor was "a vital piece of kit".

“A blood gas result will enable a clinician to make decisions about increasing/changing respiratory support and oxygen levels," she explained.

“If it is a resuscitation situation it will help clinicians make difficult decisions such as whether to continue etc."

The expert said most ICU wards will have one as it is the best method for fast-paced accurate results.

Britain’s most prolific child killer Lucy Letby is GUILTY of trying to murder premature baby girl following retrial

If incorrect readings are made using the less reliable heel prick tests, "the wrong clinical decisions or treatments” could be made, she added.

Evidence of the broken monitor is due to be presented at the Thirlwall Inquiry, which is looking into how the deaths at the hospital could have been prevented.

Some experts claim warning signs for the health of babies may have been spotted earlier if the equipment had been working properly.

Several of the deaths in the Letby case involved babies whose blood oxygen levels had suddenly dropped.

The charges Letby has been convicted of in full

Child A, allegation of murder. The Crown said Letby injected air intravenously into the bloodstream of the baby boy. COUNT 1 GUILTY.

Child B, allegation of attempted murder. The Crown said Letby attempted to murder the baby girl, the twin sister of Child A, by injecting air into her bloodstream. COUNT 2 GUILTY.

Child C, allegation of murder. Prosecutors said Letby forced air down a feeding tube and into the stomach of the baby boy. COUNT 3 GUILTY.

Child D, allegation of murder. The Crown said air was injected intravenously into the baby girl. COUNT 4 GUILTY.

Child E, allegation of murder. The Crown said Letby murdered the twin baby boy with an injection of air into the bloodstream and also deliberately caused bleeding to the infant. COUNT 5 GUILTY.

Child F, allegation of attempted murder. Letby was said by prosecutors to have poisoned the twin brother of Child E with insulin. COUNT 6 GUILTY.

Child G, three allegations of attempted murder. The Crown said Letby targeted the baby girl by overfeeding her with milk and pushing air down her feeding tube. COUNT 7 GUILTY, COUNT 8 GUILTY, COUNT 9 NOT GUILTY.

Child H, two allegations of attempted murder. Prosecutors said Letby sabotaged the care of the baby girl in some way which led to two profound oxygen desaturations. COUNT 10 NOT GUILTY, COUNT 11 JURY COULD NOT REACH VERDICT.

Child I, allegation of murder. The prosecution said Letby killed the baby girl at the fourth attempt and had given her air and overfed her with milk. COUNT 12 GUILTY.

Child J, allegation of attempted murder. No specific form of harm was identified by the prosecution but they said Letby did something to cause the collapse of the baby girl. COUNT 13 JURY COULD NOT REACH VERDICT.

Child K, allegation of attempted murder. The prosecution said Letby compromised the baby girl as she deliberately dislodged a breathing tube. COUNT 14 JURY COULD NOT REACH VERDICT AT ORIGINAL TRIAL, NOW GUILTY AFTER RETRIAL

Child L, allegation of attempted murder. The Crown said the nurse poisoned the twin baby boy with insulin. COUNT 15 GUILTY.

Child M, allegation of attempted murder. Prosecutors said Letby injected air into the bloodstream of Child L's twin brother. COUNT 16 GUILTY.

Child N, three allegations of attempted murder. The Crown said Letby inflicted trauma in the baby boy's throat and also injected him with air in the bloodstream. COUNT 17 GUILTY, COUNT 18 JURY COULD NOT REACH VERDICT, COUNT 19 JURY COULD NOT REACH VERDICT.

Child O, allegation of murder. Prosecutors say Letby attacked the triplet boy by injecting him with air, overfeeding him with milk and inflicting trauma to his liver with "severe force". COUNT 20 GUILTY.

Child P, allegation of murder. Prosecutors said the nurse targeted the triplet brother of Child O by overfeeding him with milk, injecting air and dislodging his breathing tube. COUNT 21 GUILTY.

Child Q, allegation of attempted murder. The Crown said Letby injected the baby boy with liquid, and possibly air, down his feeding tube. COUNT 22 JURY COULD NOT REACH VERDICT.

The Telegraph previously revealed when infant mortality rates spiked during the same years Letby was convicted of killing babies, the bacterium Pseudomonas aeruginosa was also found on a tap in the nursery of the neonatal unit.

Pseudomonas is considered lethal to vulnerable babies.

David Livermore, professor of medical microbiology at the University of East Anglia, said: “The monitor, along with sewage leaks and a Pseudomonas-colonised tap, is more evidence of malfunction in this sub-optimal unit.”

A spokesman for the Countess of Chester said: “Due to the ongoing Thirlwall Inquiry and police investigations, it would not be appropriate for us to comment at this time.”

It comes after a doctor who was "troubled" by Letby's case claimed the jury weren't told "the whole truth" during her trial.

An expert witness, who was failed to be called by the evil baby killer's defence team, said he has battled "for some time" with the outcome.

Neonatologist Dr Michael Hall has claimed he "did not consider that the jury had heard the whole truth".

He told : "I would have given different answers to those given by the prosecution's medical expert witnesses, and different interpretations for some of the cases. 

"That's not to say that I know all the answers, or that I know that Lucy Letby is innocent.

"There were certainly some events which were difficult to explain."

The expert disagreed with those giving evidence for the prosecution who testified some babies had been "completely stable" before their death.

But two juries have now sifted through a mountain of evidence and have found Letby guilty.

Her attempts to appeal have been declined twice.

And, it may not be the end for the evil baby killer as Operation Hummingbird is still investigating the full four years of her nursing career.

However, Letby is set to challenge her most recent conviction for murdering seven babies and trying to kill seven more, the Court of Appeal revealed earlier this month.

Court staff confirmed that Letby is bringing a bid to appeal against her conviction for one count of attempted murder in July.

Judges will consider the case at a hearing on October 24, according to court listings.

Letby previously launched an appeal to challenge her guilty verdicts for seven murders and six attempted murders, which was rejected in May.

A month later she was later sentenced to an additional whole-life order for the attempted murder of a baby girl after a retrial at Manchester crown court.

An inquiry into the events surrounding Letby’s crimes is ongoing at Liverpool Town Hall and is expected to last into 2025.

And, the mother of one murdered baby girl told the inquiry CCTV in a hospital nursery would have stopped Letby killing her daughter.

The serial killer nurse injected air into Child D’s bloodstream in 2015.

The baby’s mum said if she had known what was going on in the room her tot would not have died.

Hospitals were asked in the Thirlwall Inquiry if they have considered installing CCTV following Letby murdering seven babies and attempted to kill seven others.

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Child D’s mother said: “If there was CCTV or we were kept aware of what was going on, she wouldn’t have died.

“I would have been there it so it wouldn’t have happened.”

The Telegraph reported a vital piece of machinery was broken at the time of the spike in deaths
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The Telegraph reported a vital piece of machinery was broken at the time of the spike in deathsCredit: PA
Letby is set to appeal her convictions again
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Letby is set to appeal her convictions againCredit: SWNS
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