Prevention of Future Deaths reports · 2017

Stuart Walls

Regulation 28 report to prevent future deaths, reference 2017-0358, written 8 Dec 2017. A coroner writes one of these when an inquest reveals a risk that could cause further deaths unless something changes.

Date of report8 Dec 2017
Reference2017-0358
DeceasedStuart Walls
CoronerMichael Mellun
Coroner areaEast Riding and Kingston-upon-Hull
CategoryHospital Death (Clinical Procedures and medical management) related deaths
Sourcejudiciary.uk record · original PDF
Responses publishednone published

The report

Text extracted from the PDF text layer. Reproduced verbatim, including the scan's own layout.

Her Majesty’s Senior Coroner 
District of the East Riding of Yorkshire and Kingston upon Hull 
Professor Paul Marks BA LLM MD FRCS 

REGULATION 28 REPORT TO PREVENT FUTURE DEATHS 

THIS REPORT IS BEING SENT TO:  

Professor Sir Bruce Keogh, National Medical Director - NHS England;  
Mr Kevin Philips, Chief Medical Officer – Hull and East Yorkshire NHS Trust;  

, Medical Director – Local Medical Committee; 

1 

CORONER 

I am Michael L S Mellun, HM Assistant Coroner for the East Riding and Kingston upon Hull 

2 

CORONER’S LEGAL POWERS 

I make this report under paragraph 7, Schedule 5, of the Coroners and Justice Act 2009 and 
regulations 28 and 29 of the Coroners (Investigations) Regulations 2013. 
http://www.legislation.gov.uk/ukpga/2009/25/schedule/5/paragraph/7 
http://www.legislation.gov.uk/uksi/2013/1629/part/7/made 

3 

INVESTIGATION and INQUEST 

On 16th June 2017, I commenced an investigation into the death of Stuart Andrew WALLS.  The 
investigation concluded at the end of the Inquest on 30th November 2017.  The conclusion of the 
Inquest was a Narrative Conclusion.  It was: Stuart Andrew WALLS was found dead on the 12th 
March 2017 in room 38 of The Crossings, Great Union Street, Hull.  He died as a result of drug 
poisoning due to the combined effects of prescribed medication.  

The medical cause of death was 1a) Drug Poisoning. 

4 

CIRCUMSTANCES OF THE DEATH 

Stuart WALLS had been a resident at The Crossings since September 2016.  Staff stated that he 
had been known as a drug user, principally heroin, but they have said over the weeks before his 
death he had been clean (drug free) and had stopped taking drugs.  They said that Stuart had 
been a different person over those last few weeks and had been visiting the gym a lot.  To the 
extent he had complained that his back had started to hurt.  Staff and his doctor had apparently 
told him to take it easier in the gym as he was in there constantly. 

Stuart was last seen alive by a staff member on the 11th March 2017 at approximately 07:30 
hours.  At this time he was described as appearing fine and well. 

Stuart was not seen until 13:15 hours the next day, 12th March 2017 when staff carried out a 
welfare check.  The staff entered Stuart’s room because there was no reply to knocking.  Stuart 
was found fully clothed lying on his left hand side, apparently deceased.  A staff member called 
for help and immediately commenced CPR.  However, Stuart’s body felt cold and paramedics 
who attended pronounced that life was extinct. 

A number of prescribed medicines were found in his room, there was also a small amount of 
herbal substance believed to be cannabis.  There were no visible injuries that would suggest a 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 suspicious death and a post-mortem examination, together with full toxicological analysis was 
required.  

5 

CORONER’S CONCERNS 

The MATTERS OF CONCERN are as follows. 

Stuart died as a result of drug poisoning.  However, there was no evidence of illicit drug use 
(other than cannabis which the Consultant Histopathologist confirmed had not played a part in 
the death).  All prescribed drugs in his blood were within the therapeutic range. 

The Consultant Histopathologist explained that the prescribed drugs had combined in a 
synergistic effect, acting together to poison Stuart. 

My concern is that in the prescription of medication, particularly those that act on the central 
nervous system and affect respiration control, full account should be taken of the totality of drugs 
prescribed and their potential synergistic effect. 

The reasons for my concern are: 
Four prescription drugs namely Diazepam, Pregabalin, Amitriptyline and Promethazine were all 
found at a level consistent with therapeutic use.  Each of these alone was at a level not expected 
to kill however each can exacerbate the effect of the other.  I understood from the evidence that 
each of the drugs have a direct effect on the central nervous system.  In particular a depressive 
effect on respiration.  The Consultant Histopathologist confirmed this to be the case. 

In addition to those prescribed drugs, methadone was also prescribed at 60 mg daily.  That is 
well within normal prescription range.  It was found at a level of 507ng/mL in blood.  Methadone 
also has an effect on the central nervous system and is another respiratory depressor.  The 
toxicology report said: 

“….the deceased was prescribed 60mg of methadone daily. It has been reported that in 20 long-term opiate 
addicts who were administered a mean oral dose of 60mg methadone (range 10-225mg), the peak blood 
methadone  concentrations  ranged  between  124-1255  ng/mL.    It  has  been  reported  that  in  a  study  of  18 
patients maintained on methadone 7.5 to 130 mg daily for at least 2 months, peak plasma concentrations of 
69-698  ng/ml  (pre-dose  concentrations:  44-614  ng/ml)  were  achieved  in  3  hours.  The  blood  methadone 
level in the deceased was 507 ng/mL which may, therefore, reflect therapeutic use”.  

It is of course, not known how much methadone Stuart had taken or when.  However, properly 
taking the prescribed dose could still achieve the recorded level. 

To put the amount of methadone into context, the toxicology evidence indicated a therapeutic 
range of 75 – 1100 ng/ml in blood; a toxic range of 200 – 2000 ng/ml and a fatal range of 400 – 
2000 ng/ml. A level of tolerance builds with regular use. 

Methadone is a potent opioid narcotic analgesic and would also have a synergistic effect 
together with the other four drugs mentioned above.   

Therefore, even taking the properly prescribed medication as prescribed could have led to the 
situation that resulted in the death of Stuart WALLS.  That is, drugs properly prescribed and 
properly taken could achieve a level, acting synergistically, that caused drug toxicity sufficient to 
cause death.  

6 

ACTION SHOULD BE TAKEN 

In my opinion action should be taken to prevent future deaths and I believe you have the power 
to take such action.  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 7 

YOUR RESPONSE 

You are under a duty to respond to this report within 56 days of the date of this report, namely by 
the 2nd February 2018. I, the Coroner, may extend the period. 

Your response must contain details of action taken or proposed to be taken, setting out the 
timetable for action. Otherwise you must explain why no action is proposed. 

Your response should be sent to:  

The Coroner’s Court and Offices 
The Guildhall 
Alfred Gelder Street 
Kingston upon Hull 
HU1 2AA 

Email: coronersoffice@hullcc.gov.uk 

8 

COPIES and PUBLICATION 

I have sent a copy of my report to: 

HHJ Mark Lucraft QC, HM Chief Coroner;  
Professor Sir Bruce Keogh, National Medical Director - NHS England;  
Mr Kevin Philips, Chief Medical Officer – Hull and East Yorkshire NHS Trust;  

, Medical Director – Local Medical Committee; 
, General Practitioner – Princess Avenue Medical Centre;  

, Mother of the Deceased. 

I am also under a duty to send the Chief Coroner a copy of your response.  

The Chief Coroner may publish either or both in a complete or redacted or summary form. He 
may send a copy of this report to any person who he believes may find it useful or of interest. 
You may make representations to me, the coroner, at the time of your response, about the 
release or the publication of your response by the Chief Coroner. 

9 

Signature__________________________________ 08/12/2017 

Michael L S Mellun  East Riding and Kingston-upon-Hull

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