Prevention of Future Deaths reports · 2026

Summer Mant

Regulation 28 report to prevent future deaths, reference 2026-0118, written 27 Feb 2026. A coroner writes one of these when an inquest reveals a risk that could cause further deaths unless something changes.

Date of report27 Feb 2026
Reference2026-0118
DeceasedSummer Mant
CoronerRachel Knight
Coroner areaSouth Wales Central
CategoryChild Death (from 2015) · Wales prevention of future deaths reports (2019 onwards)
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.

GRAEME HUGHES 

HIS MAJESTY’S 
SENIOR CORONER 

SOUTH WALES CENTRAL  
CORONER AREA  

ANNEX A 

CORONER’S OFFICE 

THE OLD COURTHOUSE 

COURTHOUSE STREET 

PONTYPRIDD 
CF37 1JW 

REGULATION 28:  REPORT TO PREVENT FUTURE DEATHS (1) 

REGULATION 28 REPORT TO PREVENT FUTURE DEATHS 

THIS REPORT IS BEING SENT TO: 

The Chief Executive Cardiff & Vale University Health Board 

The Chief Executive Cwm Taf Morgannwg University Health Board 

The Chief Executive Powys Teaching Health Board 

The Chief Executive Hywel Dda University Health Board 

The Chief Executive Betsi Cadwaladr University Health Board 

The Chief Executive Aneurin Bevan University Health Board 

The Chief Executive Swansea Bay University Health Board 

The Chief Executive Velindre University NHS Trust 

J

, Cabinet Secretary for Health and Social Care 

1  CORONER 

Coroner’s Office, The Old Courthouse, Courthouse Street, Pontypridd, CF37 1JW 

Phone/Ffôn  (01443) 281100       Fax/Ffacs  (01443) 485862 

 
  
  
  
  
  
  
  
  
 2 

3 

I am Rachel Knight H M Coroner, for the coroner area of South Wales Central. 
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 26th February 2026, I concluded an inquest into the death of SUMMER RAE MANT. I reached a 
narrative conclusion as follows: 

Summer  Rae  Mant  was  born  with  MIRAGE  syndrome  which  amongst  other  things,  impacted  her 
ability  to  fight  infections.  She  developed  a  severe  infection  and  virus  and  whilst  an  inpatient  at 
Prince Charles Hospital Merthyr Tydfil on 17th March 2024, reached the ceiling of ward-based care. 
During an attempt to switch between high flow nasal oxygen and the CPAP machine on 18th March, 
there  was  a  rapid  desaturation  which  led  to  a  period  of  hypoxia  and  a  cardiac  arrest.  Following 
this,  there  was  a  further  arrest  during  intubation,  with  another  period  of  hypoxia  of  up  to  8 
minutes  duration.  These  events  of  17th  and  18th  March  likely  led  to  an  irreversible  hypoxic  brain 
injury. Summer was transferred to PICU in Bristol and subsequently Cardiff, but never made any 
meaningful recovery. Aged 4, she developed a sudden multi-organ failure in mid-September 2024, 
with  an  uncertain  cause.  Sadly,  her  condition  worsened,  and  a  decision  was  made  to  provide 
palliative care and she died at Ty Hafan on 21st September 2024.  

Although  there  were  missed  opportunities  and  sub-optimal  care  around  the  time  of  the  acute 
desaturation on 17th and 18th March 2024, it was impossible to ascertain the precise contribution 
of the various factors, in the context of Summer’s MIRAGE syndrome and compromised immune 
system.  The  development  of  the  multi-organ  failure  which  directly  led  to  death  was  likely  multi-
factorial in nature. 

 Her cause of death was: 

1a   Unexplained multi-organ failure in a 4 year old child with MIRAGE syndrome, following a 
prolonged inpatient stay due to an acquired brain injury from March 2024 following a period of 
hypoxia whilst being treated for parainfluenza virus and a superadded chest infection. 

Coroner’s Office, The Old Courthouse, Courthouse Street, Pontypridd, CF37 1JW 

Phone/Ffôn  (01443) 281100       Fax/Ffacs  (01443) 485862 

  
  
  
 
 
 
 
 
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5 

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CIRCUMSTANCES OF THE DEATH 

The Inquest focused upon:- 

a.  The events of 17th and 18th March; and 

b.  Summer’s cause of death 

. 
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.  

During the resuscitation of Summer at Prince Charles Hospital in theatre following intubation, 
there was a delay in obtaining adrenaline. The incident occurred at night and it involved a skeleton 
staff including some junior doctors, fairly new to the hospital.  

The delay in finding adrenaline, was likely due to the fact that there is no standardised crash 
trolley, and junior doctors frequently rotate between hospitals and health boards and encounter 
different set-ups.  

Paediatric crash trolleys are necessarily different to adult crash trolleys, but there was consensus in 
evidence that it would be safer if there was a single standardised version of each type across every 
hospital setting in which junior doctors rotate, to minimise confusion at a time critical moment. 

ACTION SHOULD BE TAKEN 

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

You are under a duty to respond to this report within 120 days of the date of this report, namely 
by 27th June 2026.  I, the Coroner, may extend the period. 

Coroner’s Office, The Old Courthouse, Courthouse Street, Pontypridd, CF37 1JW 

Phone/Ffôn  (01443) 281100       Fax/Ffacs  (01443) 485862 

 
  
  
  
  
  
 In this instance, as this will require thought and collaboration between all the Health Boards in 
Wales, and potentially input at Welsh Government level, I have extended the usual period, and 
would be content to receive a single agreed response.  

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 family who may find it useful or of interest. 

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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. 

 27 February 2026  

SIGNED:  

9 

Rachel Knight H M Coroner for South Wales Central Coroner Area  

Coroner’s Office, The Old Courthouse, Courthouse Street, Pontypridd, CF37 1JW 

Phone/Ffôn  (01443) 281100       Fax/Ffacs  (01443) 485862

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