Investigation and inquest
On 15th March 2012, I opened an inquest into the death of:
Lisa Webb, aged 44, died 10th March 2012, Case Ref: 00661-12.
It was concluded on 7th April 2014.
The court found that death was due to natural causes.
1a Adult Respiratory Distress Syndrome
1b Lower Respiratory Tract Infection
II Sleep apnoea and chronic asthma
Circumstances of the death
The circumstances were recorded as:
Ms Webb had a salivary stone removed under local anaesthetic on 8th March 2012 and attended GP surgery the next day, where she was found to be anxious and given a small dose of Diazepam. She died suddenly unexpectedly without prior overt respiratory symptoms, in her bed at home. She was beyond resuscitation and was certified dead at 00.57 on 10/03/12. Surgery and medical treatment did not contribute to her death, which was from natural causes.
Coroner’s concerns
Expert evidence was heard that:
(1) The management of asthma by the general practitioner on 9th March 2012, when she presented post-operatively with fast breathing and anxiety, was sub-optimal and creates potential risks for other patients.
a) Enquiries about her asthma and use of inhalers were not made, before a diagnosis was made of anxiety related hyperventilation (which was not in previous medical history)
b) Fast breathing was observed and recorded (sic hyperventilating and mild wheeze, but the respiratory rate not recorded, nor was her pulse rate.
c) Her peak flow rate was not recorded. There was only one record of its being measured in the years of general practice care and that was in 2008, when she was given a steroid inhaler.
d) Pulse oximetry was not used
(2) The prescription of Diazepam, although it did no harm in this instance, was poor treatment for anxiety, it should not be prescribed in sleep apnoea; and ideally should be avoided in respiratory distress. The GP said that he would not have given it in an asthmatic unless she had it before (of which there was no record) and that he was unaware of the diagnosis of sleep apnoea (of which diagnosis there was also no medical record).