Prevention of Future Deaths reports · 2024

Lilly Proctor

Regulation 28 report to prevent future deaths, reference 2024-0237, written 1 May 2024. A coroner writes one of these when an inquest reveals a risk that could cause further deaths unless something changes.

Date of report1 May 2024
Reference2024-0237
DeceasedLilly Proctor
CoronerOliver Longstaff
Coroner areaWest Yorkshire (Eastern)
CategoryChild Death (from 2015)
Sourcejudiciary.uk record · original PDF
Responses published2

The report

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

IN  THE WEST YORKSHIRE (EASTERN) CORONER AREA 

HM AREA CORONER OLIVER LONGSTAFF 

IN  THE MATTER OF LILLY GRACE PROCTOR 

REPORT TO PREVENT FUTURE DEATHS 

THIS REPORT IS  BEING SENT TO: 

1. 

2. 

Excellence 

Health 

1 

CORONER 

,  Chief Executive,  National Institute for Health and  Care 

, Chief Executive Officer,  Royal  College of Paediatrics and Chid 

I  am  Oliver  Robert  Longstaff,  Area  Coroner  for  the  Coroner  area  of  West  Yorkshire 
(Eastern). 

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. 

3 

INVESTIGATION and INQUEST 

On  7th  April  2022  I  commenced  an  investigation  into  the  death  of Lilly  Grace  Proctor, 
28/02/2009.  The  investigation  concluded  at  the  end  of the  Inquest on  25/04/2024.  The 
conclusion  of the  Inquest was  a  narrative  conclusion  reflecting  Lilly's  admission  to  and 
discharge  from  Pinderfields  Hospital  over  the  period  01-02/04/2022,  her  collapse  at 
home  on  the  early  hours  of  03/04/2022  and  her  death  later  that  day  in  Pinderfields 
Hospital where she had  been brought by ambulance. 

4 

CIRCUMSTANCES OF THE DEATH 

Lilly Proctor died  on  3rd April  2022  in  Pinderfields  Hospital,  having collapsed  at home in 
the early hours of the morning. She was  13. 

A joint paediatric and  forensic post mortem  examination  gave the cause of her death as 
1a)  Massive  Pulmonary  Thromboembolism  1b)  Deep  Vein  Thrombosis  1c)  Pathogenic 
PROS  1 Variant {said  by the pathologists to  have been  causative of hereditary Protein S 
deficiency, a risk factor for venous thromboembolism). 

The  findings  at  post  mortem  were  consistent  with  Lilly  having  developed  a  number of 
non-fatal  pulmonary thromboembolisms  prior to  her final  collapse,  and  in  particular were 
suggestive of an  old  thromboembolism  having  developed  around  6th  March  2022 when 
she had sought out of hours advice for a pleuritic chest pain. 

Lilly  had  a  strong  family  history  of  thromboembolic  disease,  her  mother  having  the 
Leiden  Factor V  mutation  with  a history of clots  and  anticoagulation from  the  age of 16, 
and  her biological father having had a blood clot some two years before Lilly's death. 

On  1st  April  2022  Lilly  (with  her  mother)  attended  the  Emergency  Department  at 
Pinderfields  Hospital with  complaints of shortness of breath  and  chest pains.  Of the five 
doctors  who  saw  Lilly  before  her  death,  only  one  of them  elicited  the  history  of Lilly's 

 mother's Leiden  Factor V mutation,  and  none  obtained  the  history of blood  clots  in  both 
of  Lilly's  parents.  Her  presentation  was  variously  thought  to  be  cardiac  in  origin, 
symptomatic  of hypothyroidism,  suggestive  of pneumonia,  attributable  to  a  viral  upper 
respiratory infection, or related to anxiety. 

An  independent  expert  paediatrician  gave  evidence  to  the  Inquest  that  features  of  an 
ECG  that  were  thought  by  treating  clinicians  to  be  attributable  to  Lilly's  age  were 
potentially  indicative  of a  number  of  conditions,  including  heart  strain  and  pulmonary 
embolus. 

Lilly  was  discharged  from  hospital  on  2nd  April  2022  with  no  formal  diagnosis  and  no 
prescribed  treatment.  She  had  been  unable  to  complete  an  exercise  test  whereby  she 
had  been  asked to walk a short distance around  the  department although  her heart rate 
(which  remained  above  100  bpm  throughout  her admission) was  recorded  as  the  same 
at the  beginning and the end  of the test. 

The  combination  of  Lilly's  ECG,  a  raised  inflammatory  marker  and  Lilly's  extreme 
breathlessness  would  have  justified  an  echocardiogram  and  24  hour  ECG  being 
performed.  Proper consideration of the  parental  history (if obtained) would  have justified 
consideration  of  a  CTPA  investigation  to  confirm  or  exclude  a  pulmonary  embolism, 
although the  risks associated with that procedure may have militated against it. 

It cannot  be  said  on  the  balance  of probabilities that any step taken  as  an  alternative to 
discharging  Lilly  on  2nd  April  2022  would  have  prevented  the  tragedy  of  her  terminal 
collapse the following day. 

5 

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)  Whereas  there  are  screening  tools  (such  as  "the  Wells  criteria")  to  assist  the 
detection  of pulmonary  thromboembolism  in  adults,  no  child-specific  screening 
tool  is  available  in  the  UK  and  no  existing  screening  tool  for  use  in  the  adult 
population  has  been  validated  for  use  in  children  in  the  UK.  The  inquest heard 
evidence  of  such  child-specific  screening  tools  being  developed  in  other 
countries, of which  Italy was an example. 

(2)  NICE  Guidance  NG158 

thromboembolic  diseases:  diagnosis, 
management  and  thrombophilia  testing"  is  specific  to  adults.  There  is  no 
corresponding  guidance  applicable  to  children.  Similarly,  the  NICE  Clinical 
Knowledge Summary for pulmonary embolism dated September 2023 is specific 
to adults with no corresponding publication applicable to children. 

"Venous 

(3)  The  rarity  of thromboembolism  in  children  gives  rise  to  a  concern  that  without 
access  to  resources  similar  to  those  available  when  dealing  with  the  adult 
population,  clinicians  working with  children  may be  disadvantaged  in  diagnosing 
and treating the condition, to the obvious potential detriment of their patients. 

6 

ACTION SHOULD BE TAKEN 

In  my  opinion  action  should  be  taken  to  prevent  future  deaths  and  I  believe  you  or 
organisation 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, 

2 

 namely by 28/06/2024.  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. 

8 

COPIES and PUBLICATION 

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

 (Lilly's mother),  Mid Yorkshire Teaching Trust.. 

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 

Signed: 

Date:  01  Ma  2024 

3

Responses

2 responses 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 Nice (PDF)
2nd Floor 
2 Redman Place 
London 
E20 1JQ 
United Kingdom 

25 June 2024 

Mr Oliver Longstaff 
Area Coroner for West Yorkshire (Eastern) 

Sent via email:

Our reference: 

Dear Mr Longstaff,    

Re: Regulation 28 Prevention of Future Deaths Report in respect of Lilly Grace 
Proctor 

I write in response to your regulation 28 report dated 1 May 2024 regarding the very sad death 
of Lilly Grace Proctor. I would like to express my sincere condolences to Lilly’s family.   

We have reflected on the circumstances surrounding Lilly’s death and the concerns raised in 
your  report.  We  note  your  concerns  about  a  lack  of  guidance  on  venous  thromboembolic 
disease  in  children  and  the  lack  of  child  specific  screening  tools  to  assist  the  detection  of 
pulmonary thromboembolism.  

Following receipt of your report, senior clinical advisors within the patient safety team at NICE 
have reviewed the concerns raised. They have advised that incidence of VTE in children is 
low –1.4-2.1 cases per 100,000 children per year. This is much lower than the incidence in 
adults. In children, the most common risk factors for VTE are the presence of a central venous 
catheter (CVC) or conditions such as congenital cardiac disease. Other risk factors include 
inherited  hypercoagulable  state  (as  in  this case),  infection,  trauma,  immobility,  malignancy, 
and chronic inflammatory conditions.  

Given the rarity of VTE in children, existing NICE guidance on VTE does not include children. 
Furthermore, the clinical manifestations of severe VTE (such as PE) in children are nonspecific 
and often mimic the clinical symptoms of other more prevalent diseases.  

Regarding a screening tool, there is no specific screening tool that we are aware of. The Wells 
score  and  the  Caprini  score  (scores  used  in  adults)  have  both  been  evaluated  in  different 
paediatric  populations,  but  their  performance  has  not  been  good,  and  they  cannot  be 
recommended. There is, therefore, no screening tool that NICE could recommend. We note 
you have mentioned child specific screening tools being developed in other countries, but our 
clinical advisors are not aware of these and have not seen them used in practice. 

 
 
 
 
 
 
 
 
 In terms of screening for these conditions in relatives of people with inherited thrombophilia, 
this is also not straightforward, as there are advantages and disadvantages. There are some 
situations where knowing that a child has an inherited defect may improve medical decision-
making, and may give an opportunity to educate about signs and symptoms of VTE, which 
could lead to earlier diagnosis (as in this case); or to provide targeted thromboprophylaxis in 
clinical situations where the risk of VTE is increased; and to promote lifestyle modifications to 
avoid  other  prothrombotic  risk  factors  (eg,  sedentary  lifestyle,  overweight/obesity,  and 
smoking). 

Conversely, inherited thrombophilia testing during childhood may be inappropriate, given the 
low risk of a thrombotic event; interpretation of screening tests can be challenging and may 
result in misdiagnosis. There are also ethical concerns about testing in those who may not 
have  the  maturity  or  understanding  to  make  an  informed  decision.  Screening  is  also 
problematic  in  situations  where  there  is  no  clear  medical  benefit  to  the  individual  being 
screened.  

Nevertheless,  NICE  will  consider  the  issues  raised  in  your  report  through  our  recently 
implemented  organisation-wide approach to prioritisation and topic selection. This is overseen 
by  a  single  prioritisation  board  that  guides  the  selection  and  coordination  of  our  guidance 
development. We will ask our prioritisation board to consider if guidance should be developed 
in this area. In line with our usual practice, decisions made by the prioritisation board will be 
published on the NICE website. 

I hope this response has helped outline our role and the reasoning behind our lack of guidance 
in this specific area and would like to reiterate my sincere condolences to Lilly’s family.   

Yours sincerely, 

Chief Executive     

                                                                                                                                 Page | 2
Response from Rcpch (PDF)
Sent by email to: 

Dear Mr Longstaff,  

Oliver Longstaff 
Area Coroner 
West Yorkshire (E) 

27 June 2024 

Re: RCPCH Response to the Inquest Touching the Death of Lily Grace Proctor 
A Regulation 28 Report – Action to Prevent Future Deaths 

Thank you for sharing your report with us regarding the tragic and untimely passing of Lily 
Grace Proctor. I have shared your report with other senior paediartic colleagues within 
RCPCH. The details have also been shared with the Association of Paediatric Emergency 
Medicine 

We have read your report carefully and would like to offer a response to the matters of 
concern you have set out.   

1.  Screening tools to assist the detection of pulmonary thromboembolism / NICE 

Guidance NG158 “Venous thromboembolic diseases: diagnosis, management and 
thrombophilia testing” 

We note your pertinent concerns that, in the absence of resources similar to those available 
when dealing with the adult population, clinicians working with children may be 
disadvantaged in diagnosing and treating the condition, to the obvious potential detriment of 
their patients. We would agree that this is the case.   

We also note that the annual incidence of venous thromboembolism is very low in children, 
estimated at 0.07–0.49 per 10,000 children, making this a difficult diagnosis to make given 
the often insidious and non-specific early symptoms. 

Paediatricians and other clinicians who see unwell children and young people could benefit 
from an effective tool to assist the clinical detection of pulmonary thromboembolism in 
children and young people. Also a national guideline on this topic that is specific to children 
could be helpful. We would look to the National Institute for Healthcare Excellence to take a 
lead on this work to help develop a further evidence base or consensus guidance in this 
complex area of clinical practice. If this is to be taken forward, the College would be happy to 
assist and provide clinical expertise.   

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2.  Sharing information and learning for quality improvement across the paediatric 

community  

RCPCH are currently reviewing our Emergency Care Standards and the information within 
your report has been shared with our Emergency Care Committee to inform this work.   

The RCPCH Guideline Directory contains a full list of paediatric guidelines published by the 
National Institute for Health and Care Excellence (NICE) and the Scottish Intercollegiate 
Guidelines Network (SIGN), as well as those from other Royal Colleges or paediatric 
specialty groups which meet the standards for RCPCH endorsement. If the above-
mentioned paediatric guidance and screening tools are developed, they will be added to this 
directory to raise awareness across the paediatric community.  

Our collegeis also responsible for supporting training and continuing professional 
development. We will ensure that the learnings from this tragic case are incorporated into 
any relevant courses, such as our course on How to Manage Non-Malignant Haematology.  

The College will be sharing information and suggestions for local improvement from your 
report with our paediatric members via its patient safety portal. The anonymised information 
within your report, and anticipated response from NICE, will also be shared for discussion 
with the RCPCH Clinical Quality in Practice Committee, where further actions may be 
identified.   

Thank you for seeking our views and reminding us of the importance of this work. Our 
sincere condolences are with Lily’s family.  

Yours sincerely 

RCPCH President

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