Prevention of Future Deaths reports · 2025

Colin Brooks

Regulation 28 report to prevent future deaths, reference 2025-0276, written 5 Jun 2025. A coroner writes one of these when an inquest reveals a risk that could cause further deaths unless something changes.

Date of report5 Jun 2025
Reference2025-0276
DeceasedColin Brooks
CoronerSimon Brenchley
Coroner areaBirmingham and Solihull
CategoryHospital Death (Clinical Procedures and medical management) related deaths
Organisation namedUniversity Hospitals Birmingham NHS Foundation Trust
Sourcejudiciary.uk record · original PDF
Responses published1

The report

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

1 

2 

3 

4 

REGULATION 28 REPORT TO PREVENT FUTURE DEATHS 

THIS REPORT IS BEING SENT TO:  Secretary of State for Health and Social Care 
CORONER 

 I am Simon Brenchley, Assistant Coroner for Birmingham and Solihull Districts 
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. 
INVESTIGATION and INQUEST 

 On 23 September 2024 I commenced an investigation into the death of Colin Charles BROOKS. 
The investigation concluded at the end of the inquest on 29th May 2025. The conclusion of the 
inquest was that; 

The deceased died as a result of a hypoxic ischaemic brain injury after blood flow to his brain was 
compromised during emergency cardiac surgery when there was a delay in the reapplication of a 
bridge clamp to the circuit of a cardiopulmonary bypass machine. 

CIRCUMSTANCES OF THE DEATH  

  On 7th May 2024 at the Queen Elizabeth Hospital in Birmingham, Mr Brooks underwent complex 
cardiac surgery involving the replacement of his aortic valve, aortic root and ascending aorta as 
well as coronary artery bypass grafts. After the initial surgery was completed, whilst he was still 
being monitored in theatre, it was noted that he was losing blood so it became necessary for 
surgeons to re-open his chest to investigate and deal with the source of the bleeding. During the 
efforts to deal with the bleeding, the left coronary button was injured necessitating the emergency 
reinstitution of cardiopulmonary bypass at 2137 in order to repair this. A clamp on the bridge 
between the arterial and venous lines of the cardiopulmonary bypass machine, which had been 
removed prior to commencement of bypass in order to add and circulate heparin in the machine, 
was not reapplied prior to bypass commencing as it should have been. This led to a significant 
shunt being present within the bypass circuit meaning that Mr Brooks became profoundly 
hypotensive with low blood supply to his brain. After a number of measures were taken to try to 
identify the cause of the low pressure, the absence of the clamp was identified at about 2200 hrs at 
which point the clamp was reapplied with full blood flow and pressure achieved again, allowing the 
emergency surgery to proceed and the bleeding resolved. After the surgery, Mr Brooks was 
transferred to the Cardiac ICU but he failed to regain consciousness. It was established that he 
had sustained a significant hypoxic ischaemic acquired brain injury due primarily to the loss of the 
blood supply/flow to his brain during the surgery. He remained in a state of unresponsive 
wakefulness and was subsequently moved to a neurology ward, with plans put in place to transfer 
him to a specialist neurology rehabilitation unit. However, during August 2024 his medical condition 
deteriorated due to a number of complications including the development of irreversible renal 
failure and he subsequently passed away in the neurology ward on 11th September 2024. 

 Based on information from Mr Brooks’ treating clinicians the medical cause of death was 
determined to be: 

 1a   Hypoxic brain injury 

 1b   Cardiac Surgery - Coronary Artery Bypass Surgery and Aortic Root Replacement 7th 
May 2024 

  
  
  
  
  
  1c    

 1d   

 II    Ischaemic Heart Disease, Aortic Stenosis, Aortic Aneurysm, Diabetes, Hypertension, 
Hypercholesterolaemia 
CORONER’S CONCERNS 

 During the course of the inquest the evidence revealed matters giving rise to concern. In my 
opinion there is a risk that future deaths will occur unless action is taken. In the circumstances it is 
my statutory duty to report to you. 

 The MATTERS OF CONCERN are as follows.  – 

1.   During the inquest I heard that the emergency surgery on Mr Brooks was taking place out 
of hours at the same time as another emergency procedure, a lung transplant operation, 
was taking place in another theatre.  The only two on call perfusionists on site were the 
perfusionist operating the cardiopulmonary bypass machine (“CPB”) in Mr Brooks’s surgery 
(Perfusionist 2) and the perfusionist involved in the lung transplant operation (Perfusionist 
3). 

2.  The Safety Requirements published by the Society of Clinical Perfusion Scientists in 2023 

advises that : “The minimum safe number of accredited clinical perfusion scientists to cover 
operating theatres for any CPB procedure is deemed as N+1, where N equals the number 
of operating theatres in use at any given time on a single site.  The plus one shall be 
available onsite” 

5 

3.  One of the factors that was, in my view, likely to have contributed to the delay in 

Perfusionist 2, who was relatively junior in terms of experience, being able to identify the 
absence of the bridge clamp as the cause Mr Brook’s hypotension, was that Perfusionist 2 
was limited in being able to obtain advice from another perfusionist.   

4.  Contrary to the “N+1” advice, there was no other available perfusionist on site, (apart from 

Perfusionist 3), whom Perfusionist 2 could call in to theatre quickly to help with 
troubleshooting.  Perfusionist 3 was unable to leave the theatre next door and so messages 
had to be exchanged between the two perfusionists which led to the issue being identified. 

5.  I heard that whilst the “N+1” advice is followed by the UHB Trust during normal working 
hours, it is not possible for this to be followed out of hours in circumstances where two 
operating theatres are in operation at the same time owing to resourcing/funding issues and 
problems with the availability of perfusionists generally, one of the factors being the 
significant effect staffing this requirement out of hours would have on reducing the waiting 
lists for surgery during working hours.  

6.  Although it was a rare event that two emergency procedures requiring a bypass machine 
were taking place at the same time out of hours, nonetheless there is a risk that future 
deaths could occur in similar circumstances if action is not taken to address resourcing and 
the availability of perfusionists. 

ACTION SHOULD BE TAKEN 

6 

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

 
  
  
  
  
  
  
 YOUR RESPONSE 

 You are under a duty to respond to this report within 56 days of the date of this report, namely by 
31 July 2025. I, the coroner, may extend the period. 

7 

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.  

COPIES and PUBLICATION 

 I have sent a copy of my report to the Chief Coroner and to the following Interested Persons: 

Mr Brooks’s family  

UHB 

8 

 I have also sent it to the Medical Examiner, ICB, and the Society of Clinical Perfusion Scientists 
who may find it useful or of interest. 

 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. She 
may send a copy of this report to any person who she 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: 

Simon Brenchley 

HM Assistant Coroner for Birmingham and Solihull 

5 June 2025

Responses

1 response published against this report on judiciary.uk. A response is a body's written reply to the coroner's concerns; publication is at the discretion of the Chief Coroner's office, so an absent response does not mean nobody replied.

Response from Department of Health and Social Care (PDF)
Karin Smyth MP  
Minister of State for Health (Secondary Care)  

39 Victoria Street  
London  
SW1H 0EU  

Our ref: PFD – 25-06-05 - BROOKS  

HM Assistant Coroner Simon Brenchley  
The Birmingham and Solihull Coroner’s Court  
Steelhouse Lane  
Birmingham  
B4 6BJ  
0121 303 3228  

By email: coroner@birmingham.gov.uk  

28 August 2025  

Dear Mr Brenchley,   

Thank you for the Regulation 28 report of 29 June 2025 sent to the Secretary of State for 
Health and Social Care about the death of Colin Charles Brooks. I am replying as the Minister 
with responsibility for Secondary Care.        

Firstly, I would like to say how saddened I was to read of the circumstances of Mr Brooks’ 
death and I offer my sincere condolences to his family and loved ones. The circumstances 
your report describes are concerning and I am grateful to you for bringing these matters to 
my attention. Please accept my sincere apologies for the delay in responding to this matter.  

The  report  raises  concerns  over  an  insufficient  number  of  on-call  perfusionists  when  Mr 
Brooks’  emergency  surgery  took  place. The  out  of  hours  surgery took  place  concurrently 
with an emergency lung transplant, with only two on-call perfusionists available on site. This 
fell short of the 2023 Society of Clinical Perfusion Scientists’ guidance requiring a minimum 
of N+1 perfusionists to ensure safe cover for procedures requiring a cardiopulmonary bypass 
machine. It also found that Perfusionist 2, who was relatively junior, was unable to access 
immediate support when trying to identify the cause of Mr Brooks’ hypotension, as the only 
other perfusionist was engaged in the other theatre. The Trust does follow N+1 during normal 
hours however they have stated resource constraints prevented this being met out of hours 
and while, as you noted, it is rare for two emergency operations requiring cardiopulmonary 
bypass machines to occur simultaneously out of hours, it is clear it can happen.  

In preparing this response, my officials have made enquiries with NHS England to ensure 
we adequately address your concerns.  

I  have  carefully  considered  the  situation.  Individual  NHS  Trusts  and  other  employers  are 
responsible for determining staffing levels and workforce composition. They are best placed 
to  understand  their  services  and  the  needs  of  their  patients  in  order  to  deliver  safe  and 
effective care. I would expect University Hospitals Birmingham NHS Foundation Trust and 
all  other  NHS  Trusts  to  ensure  that  their  staffing  arrangements,  including  weekend  and 
overnight cover, are appropriate following the tragic death of Mr Brooks.   

  
  
  
  
  
  
  
  
  
   
   
  
   
 Trusts already have a duty through the Health and Social Care Act 2008 to regularly review 
the number of staff and range of skills needed to safely meet the needs of people using their 
services.  

Mr Brooks’ case was reviewed in a Mortality and Morbidity meeting, where shared learning 
was  cascaded  across  the  surgical  team.  Following  this,  both  the  Cardiac  Surgery  and 
Perfusionist Teams at University Hospitals Birmingham confirmed they have implemented 
several safety actions in response. A peer-reviewed perfusion checklist has been introduced, 
which  is  now  embedded  into  routine  practice  for  all  cardiopulmonary  bypass  procedures. 
Additionally, they  assessed  the need  for more  centrifugal pumps,  alongside  other cardiac 
measures taken by the perfusionist team, to make sure this doesn’t happen again.   

In our 10 Year Health Plan, we committed to publishing a new 10 Year Workforce Plan later 
this year. This will ensure the NHS has the right people in the right places to deliver the best 
care for patients.   

I hope this response is helpful. Thank you for bringing these concerns to my attention.    

Yours sincerely,   

KARIN SMYTH  

MINISTER OF STATE FOR HEALTH

Related reports

Other reports by Simon Brenchley

See all →

More reports categorised “Hospital Death (Clinical Procedures and medical management) related deaths”

See all →

Track University Hospitals Birmingham NHS Foundation Trust

See every Prevention of Future Deaths report matching University Hospitals Birmingham NHS Foundation Trust, and how often a new one appears.

What would an alert for this have sent me? Search the full text

Free to try — the preview shows the real matches and how many arrived in the last 12 months. Your first email alert is free.

These reports are published by the Chief Coroner's office at judiciary.uk and are © Crown copyright. The text here is reproduced from the published PDF so it can be searched. If something on this page is wrong, or you are a person named in it and want it reviewed, email drcjar@gmail.com and we will act promptly.