Dartford mum Sian Hollands might still be alive “with a simple turning of the page”, it was claimed today.

At the inquest into the death of the 25-year-old woman, it emerged that a crucial piece of information on her condition was on the back of one of the papers used by a doctor.

Dr Angela Feazey, a doctor from the Tunbridge Wells Hospital, was called in as an expert on accident and emergency hospitals and it was she who discovered the evidence.

Ms Hollands, of Priory Hill, was admitted into Darent Valley Hospital on November 14, 2015 and discharged the next day at 3.30pm.

However she was taken straight back into hospital with cardiac arrest and was pronounced dead at 9.52pm from a pulmonary embolism.

When Ms Hollands was brought into hospital, it was assumed that she was suffering from withdrawal, as she was a recovering heroine and crack addict who was taking methadone to treat her withdrawal symptoms.

However, it didn’t become clear to the staff until 7.36pm the next day that she had a pulmonary embolism.

Dr Kamran Khan, who discharged Ms Hollands, said that if he had been aware of the notes taken by overnight nurses and ambulance staff that she was suffering from a shortness of breath, which is a symptom of pulmonary embolism, then he would not have discharged her.

At the inquest today, March 31, at Gravesend Coroner's Court, Dr Feazey discovered the notes Dr Khan had taken down of Ms Hollands' condition on the morning of November 15 were on the reverse side of the notes a nurse had taken between 5am and 7am, on which were written symptoms in line with pulmonary embolism.

Barrister Edward Ramsay, representing the family, said to Dr Khan: “You have simply failed to read the notes right in front of you.

“All it would have taken is to a simple turning of the page. With a simple turning of the page, Sian Hollands would have still been alive, is that correct?”

Dr Khan responded “yes”, a response that caused members of Ms Hollands’ family to burst into tears and eventually leave the courtroom.

The inquest has been adjourned until April 10 when the coroner will give his final verdict.