Source · Prevention of Future Deaths

Stephen Oakes

Ref: 2021-0114 Date: 19 Apr 2021 Coroner: Margaret Jones Area: Stoke-on-Trent & North Staffordshire Coroner’s Court Responses identified: 4 / 3 View PDF

Product description for a 14Fr feeding/drainage tube was misleading due to a restrictive connector, leading to inadequate drainage. Hospital evaluation was insufficient, and staff lacked training on product changes and alternative actions.

Date 19 Apr 2021
56-day deadline 28 Jun 2021
Responses identified 4 of 3
Hospital Death (Clinical Procedures and medical management) related deaths Product related deaths

Coroner's concerns

AI summary
Product description for a 14Fr feeding/drainage tube was misleading due to a restrictive connector, leading to inadequate drainage. Hospital evaluation was insufficient, and staff lacked training on product changes and alternative actions.
View full coroner's concerns
(1) The product description used by Enteral was insufficient to enable the end user to clearly identify that the tube marketed as a carefeed size 14FR feeding and drainage tube would not operate as a 14Fr tube due to the restricting en-fit connector.

(2) Enteral sales marketing staff were not trained to recognise the new restriction in the bore of the tube and were consequently unable to advise the end user of the change.

(3) The Hospital Trust did not fully evaluate the size 14FR tube prior to replacing all previous drainage tubes (Ryles) with the carefeed 14Fr feeding and drainage tube. Feedback was generally difficult to obtain.

(4) Nursing staff did not consider alternative action when the NG tubes were not adequately draining. There was no general recognition of the need to aspirate the tube.

(5) There is no compulsory training of clinicians required to undertake root cause analysis.

(6) Despite reports to the MHRA and issue of amended instructions for use and a field safety notice the product continues to be promoted as suitable to feeding and drainage. Please see attached link to the Nursing times. https://www.nursingtimes.net/clinical-archive/nutrition/selection-and-management-of-commonly-used-enteral-feeding-tubes-18-02-2019/ (7) This was a joint inquest into the death of two patients who died in quick succession as a result of the Enteral 14F nasosgastric tube being used for decompression in an emergency situation. Four similar (non-fatal) incidents followed. It was not clear to the hospital that the Enteral connector reduced the bore of the size 14Fr tube. The inquest was aware that other Hospital Trusts had also needed to change the tubes. I am concerned that the product labelling problem identified during these inquests may not be limited to the University Hospital North Midlands but is in fact a much wider problem that merits wider industry investigation and changes.

Responses

4 respondents
Medicines and Healthcare Products Regulatory Agency Other
19 Apr 2021 PDF
Action Planned

The manufacturer has updated the product labelling for the Carefeed devices to remove the secondary intended use of drainage; MHRA will write to UK manufacturers of nasogastric tubes to advise them of the risk associated with the use of the ISO standard ENFit connector in aspiration/decompression situations and ask them to update their risk assessment and is collaborating with NHS England and Improvement on raising awareness on the Medical Devices Safety Officers' (MDSO) network. (AI summary)

View full response
Dear Mrs Jones

Regulation 28 request relating to the death of Mr Stephen Oakes , Nasogastric tubes

I write with reference to your Regulation 28 report (dated 19 April 2021) concerning the death of Mr Stephen Oakes. Mr Oakes suffered post-surgical complications, which included the use of a Carefeed 14Fr nasogastric tube that inadequately drained his stomach contents, allowing vomiting past the tube leading to aspiration pneumonia, against a background of significant natural disease.

Your report was received by MHRA on the 10 June 2021 via NHS England and Improvement. Both organisations agreed to provide a separate response to address concerns relevant to each organisation, as the NHS England Small Bore Connector Clinical Advisory group (Supply Chain Stakeholders/MHRA/NHS Supply Chain/British Standards and Industry Groups) to which it was addressed has been disbanded.

We have previously provided a report to the Coroner on 5 March 2021 to assist with the inquest. Following the inquest you raised the matters of concern below:

(1) The product description used by Enteral was insufficient to enable the end user to clearly identify that the tube marketed as a Carefeed size 14Fr feeding and drainage tube would not operate as a 14Fr tube due to the restricting en-fit connector. (2) Enteral sales marketing staff were not trained to recognise the new restriction in the bore of the tube and were consequently unable to advise the end user of the change. (3) The Hospital Trust did not fully evaluate the size 14Fr tube prior to replacing all previous drainage tubes (Ryles) with the Carefeed 14Fr feeding and drainage tube. Feedback was generally difficult to obtain. (4) Nursing staff did not consider alternative action when the nasogastric tubes were not adequately draining. There was no general recognition of the need to aspirate the tube. (5) There is no compulsory training of clinicians required to undertake root cause analysis. (6) Despite reports to the MHRA and issue of amended instructions for use and a field safety notice the product continues to be promoted as suitable to feeding and drainage. (7) This was a joint inquest into the deaths of two patients who died in quick succession as a result of the Enteral 14Ff nasogastric tubes being used for decompression in an emergency situation. Four similar (non-fatal) incidents followed. It was not clear to the hospital that the Enteral connector reduced the bore of the size 14Fr tube. The inquest was aware that other Hospital Trusts had also needed to change the tubes. I am concerned that the product labelling problem identified Mrs M Jones Assistant Coroner HM Coroner’s Office 547 Hartshill Road Stoke-on-Trent ST4 6HF

19 July 2021

during these inquests may not be limited to the University Hospital North Midlands but is in fact a much wider problem that merits wider industry investigation and changes.

We would like to address the highlighted concerns 1, 2, 6 and 7 relevant to our regulatory role. The manufacturer, GBUK, has informed us that they have updated the product labelling for the Carefeed devices to remove the secondary intended use of drainage. The primary intended use is clearly stated as ’Feeding Tube’. We understand GBUK has recently communicated this to you. We continue to engage with GBUK on the outstanding issue regarding update to their website for the instructions for Use (IFU) on Carefeed devices. They are currently reviewing their website and aim to complete this action within the next 2 months. The above addresses concern 1.

In relation to concerns 2, 6 and 7, we will continue to collaborate with NHS England and Improvement on the best way to address this issue, such as raising awareness on the Medical Devices Safety Officers’ (MDSO) network. We will write to UK manufacturers of nasogastric tubes to advise them of the risk associated with the use of the ISO standard ENFit connector in aspiration/decompression situations and ask them to update their risk assessment if not already done. We will advise that where applicable, they should conduct a Field Safety Corrective Action (FSCA) and update their IFU, ensuring that their staff are fully trained in the changes so that they can provide advice to clinicians where necessary. This action will be completed within 1 month.

In addition, we have contacted the British Association for Parenteral and Enteral Nutrition (BAPEN) and the National Nurses Nutrition Group (NNNG) to raise further awareness of this issue.

We have not received any similar reports to date.

We understand from NHS England and Improvement that a separate response has been provided to yourself covering points 3, 4 and 5.

I hope this information is reassuring to you.

Thank you for bringing this important patient safety issue (Regulation 28 report) to our attention and please contact me should you need any further information.
GBUK Group Ltd
17 Jun 2021 PDF
Action Taken

GBUK has revised device labelling and instructions for use, removing all references to drainage and adding warnings about flow restrictions with ENFit connectors and has provided refresher training to its sales force regarding nasogastric feeding tubes and ENFit connectors. (AI summary)

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Dear Madam, I write regarding concerns raised in your Regulation 28 report to prevent future deaths, relating to the conjoined inquest of Mr Peter Hussey and Mr Stephen Oakes and the steps taken by GBUK Enteral Ltd to address them. Firstly, addressing concerns raised relating to the device description and the restriction posed by the EN Fit connector when used for drainage on some larger Fr size tubes. We have now revised our device labelling and the Instructions For Use (IFU), with all references to drainage now completely removed from our device labelling descriptions. Within the revised IFU the following additional warnings & precautions are now present:
• Routinely check flow and tube impairment. Ifthe tube is used for drainage, failure to clear the obstruction may cause gas & fluid build-up in stomach, aspiration of gastric contents, aspiration pneumonia and other complications.
• The device should not be used for high volume decompression in emergency situations, and/or decompression of highly viscous fluids other than gastric secretions.
• From sizes 14Frand above, the internal diameter of the industry standard ENFit ISO 80369-3 connector is smaller than the internal diameter of the tube. Flow rate will be limited by the EN Fit connector for these sizes. The term drainage has been removed from the "Intended Use" section of the IFU and packaging labels. In the revised IFU we clearly identify to the user that the intended use of the product is a feeding tube. The additional warnings & precautions in the revised IFU further explain very clearly the limitations of the tube if the user opts to use the tube for the dual purposes of feeding and drainage. This will be implemented as new stock of these devices are manufactured. We have also contacted NHS supply chain to request the device description be changed on their website from "Gastrostomy tubes for general use" to "Nasogastric Feeding Tube", which we hope will be implemented soon. Regarding concerns that our Enteral sales staff were not trained to recognise the restriction posed by the ENFit connector, in order to advise end users. I reiterate the point made in my previous correspondence to you ( 19th April 2021 ), that all members of the Enteral sales team fully understand that our Nasogastric Feeding tubes are not a replacement for a Ryles tube, with its primary purpose being that of feeding and its secondary purpose being limited forms of drainage. We have also ensured that up to date refresher training has been provided to our sales force. This training was given on the 21st April 2021, covering in detail the intended use of llegi,lqtwdo!l~al GIWK GtDIIP Um,lod..Woadloo<I -.8/e<itwQod Ii.Id 11wM1 ...,._ No!lh Dulllt~. S.lby. tlott~ -hlrfo. Y03 60D. V~I tt<J1'.<IOl<>floun,bt• 228<;428!r.;. A-oy reg•ren:d•o E"9J,l••U'II..., l\lh<Ol!l;>l,,Y """"''" 1»158917

Nasogastric feeding tubes and also specifically ENFit connectors and the impact on the tubes flow rate. A copy of the training presentation has been provided, which you will see contains the key topics of concerns. Staff attending were also tested at the end of the training provided, to ensure all key points had been understood. Any new sales staff will also receive this training and refresher training is provided to our sales force at regular intervals. I hope this addresses the concerns raised within your report and should you have any queries regarding this letter or require any further clarification please do not hesitate to contact us and we will be more than happy to assist.
University Hospitals of North Midlands NHS Trust NHS / Health Body
23 Jun 2021 PDF
Action Taken

The Trust has designed a new proforma for evaluating equipment and has updated the Trust e-learning training package for the insertion and on-going management of Nasogastric/Orogastric tubes including troubleshooting guidance and a competency and self-assessment document. (AI summary)

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Dear Mrs Jones Co-joined Inquests touching the deaths of Peter Hussey and Stephen Oakes Further to your letters dated 19 April 2021, I am pleased to provide the following response to address the concerns that you raised at the co-joined inquests touching the deaths of Stephen Oakes and Peter Hussey. You raised a number of matters of concern to be addressed by several organisations and we have taken the opportunity to address matters directly relating to the University Hospitals of North Midlands NHS Trust, which were highlighted by you as follows:
1. The Hospital Trust did not fully evaluate the size 14FR tube prior to replacing all previous drainage tubes (Ryles) with the carefeed 14Fr feeding and drainage tube. Feedback was generally difficult to obtain.
2. Nursing staff did not consider alternative action when the NG tubes were not adequately draining. There was no general recognition of the need to aspirate the tube.
3. There is no compulsory training of clinicians required to undertake root cause analysis. Action Taken During the course of the inquest, you were appraised of improvements that had already taken place across the Trust, however, in addition we are pleased to advise of the following significant improvements.
1. The Hospital Trust did not fully evaluate the size 14Fr tube prior to replacing all previous drainage tubes (Ryles) with Carefeed 14Fr feeding and drainage tube. Feedback was generally difficult to obtain Matters relating to the inquest touching upon the deaths of Mr Hussey and Mr Oakes were discussed at the Medical Device Strategy Committee (MDSC) and as a consequence, a new proforma for evaluating equipment has been designed and will be used to collect feedback from users during the initial trial period. As indicated at the inquest, the recently appointed Specialist Nurse will assist in gathering this data.

We are also looking at trialling new equipment (where appropriate) in the Trust Extended Reality Laboratory (ERL); this is a simulation facility and will assist in identifying any gross issues before implementing trial periods in the clinical areas.
2. Nursing staff did not consider alternative action when the NG tubes were not adequately draining. There was no general recognition of the need to aspirate the tube. The Trust Nasogastric Working Group, chaired by the Lead Nurse for Quality and Safety, have overseen a focused piece of work to review and update the Local Safety Standards for Invasive Procedure (LocSSIP} - Insertion of Nasogastric I Orogastric Tubes, to include 'troubleshooting' guidance regarding aspiration of Nasogastric/Orogastric tubes inserted for the purpose of drainage. Troubleshooting guidance will also be provided in both nursing and medical clinical guidelines. The Trust e-learning training package for the insertion and on-going management of Nasogastris/Orogastric tubes has also been updated to include 'troubleshooting' guidance on aspiration of Nasogastric/Orogastric tubes and includes the development of a competency and self-assessment document; this will ensure that all registrants involved in the management of Nasogastric/Orogastric tubes are competent to do so.
3. There is no compulsory training of clinicians required to undertake root cause analysis. The Trust continue to provide RCA training for clinicians across the organisation. Whilst training was available prior to the inquest touching the deaths of Mr Hussey and Mr Oakes, we aim to increase the number of staff who are trained in the basic principles and tools for RCA investigations. All names of staff who have undergone RCA training will be entered onto a staff database and future Investigating Officers will be selected from this list. I have also enclosed a copy of the action plan that has been developed following the inquest and I do hope that it demonstrates our intention to improve the services provided at the Trust. I sincerely hope that the above information provides you with assurance that the University Hospitals of North Midlands NHS Trust has taken the matters arising from the inquest touching upon the deaths of Mr Hussey and Mr Oakes seriously. The Trust strives to provide a high standard of care to all patients and I am grateful to you for raising these concerns on this occasion. Should you wish to discuss any aspect of this report further, please do not hesitate to contact me.
NHS England NHS Improvement NHS / Health Body
29 Jun 2021 PDF
Action Planned

NHS England and Improvement are working with the Healthcare Safety Investigation Branch (HSIB) testing and introducing national patient safety incident investigation training and developing a patient safety incident investigation training procurement framework. (AI summary)

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Dear Ms Jones, Re: Regulation 28 Report to Prevent Future Deaths - Stephen James Oakes Thank you for your Regulation 28 Report (hereafter 'report') dated 19 April 2021 concerning the death of Mr Stephen James Oakes on 23 December 2017. Firstly, I would like to express my deep condolences to Mr Oakes's family. The report concludes Mr Oakes's death was a result of "complications caused by the use of a carefeed 14F nasogastric tube which inadequately drained stomach contents allowing vomiting passed (sic) the tube leading to aspiration pneumonia on a background of significant natural disease and death". Following the inquest you raised concerns in your report to NHS England and NHS Improvement (NHSE/I) as follows:
1. The product description used by Enteral was insufficient to enable the end user to clearly identify that the tube marketed as a carefeed size 14FR feeding and drainage tube would not operate as a 14Fr tube due to the restricting en-fit connector.
2. Enteral sales marketing staff were not trained to recognise the new restriction in the bore of the tube and were consequently unable to advise the end user of the change.
3. The Hospital Trust did not fully evaluate the size 14FR tube prior to replacing all previous drainage tubes (Ryles) with the Carefeed 14Fr feeding and drainage tube. Feedback was generally difficult to obtain.
4. Nursing staff did not consider alternative action when the nasogastric tubes were not adequately draining. There was no general recognition of the need to aspirate the tube. NHS England and NHS Improvement Cl:)

5. There is no compulsory training of clinicians required to undertake root cause analysis.
6. Despite reports to the MHRA and issue of amended instructions for use and a field safety notice the product continues to be promoted as suitable to feeding and drainage.
7. This was a joint inquest into the deaths of two patients who died in quick succession as a result of the Enteral 14F nasogastric tubes being used for decompression in an emergency situation. Four similar (non-fatal) incidents followed. It was not clear to the hospital that the Enteral connector reduced the bore of the size 14Fr tube. The inquest was aware that other Hospital Trusts had also needed to change the tubes. The product labelling problem identified during these inquests may not be limited to the University Hospital North Midlands but is in fact a much wider problem that merits wider industry investigation and changes. Further to the email sent on 10 June 2021 from , Business Manager in my Quality Strategy Team, I am conscious that the majority of your concerns would be better placed with the Local Trust, to whom you have sent the report, and colleagues at the Medicines and Healthcare products Regulatory Agency (MHRA). The Small Bore Connector Group, which you refer to in the addressees of the report was discontinued some time ago. On that basis I have shared the report with colleagues at MHRAwho I understand will address the concerns relevant to their area of work. In terms of wider patient safety, NHSE/l's Patient Safety Team have discussed this issue and are currently undertaking a review of the National Reporting and Learning System (NRLS) to see if they can identify any reported incidents since January 2018; when GBUK issued a Field Safety Notice in respect of this issue. Pending the outcome of this review, Patient Safety colleagues will work with MHRA to determine if any further action is required. In relation to concern 5, around Root Cause Analysis training, it is important to note that all NHS trusts are required to comply with the Serious Incident Framework (2015) when conducting patient safety incident investigations into incidents such as the tragic events described. The Framework states that; "The investigation must be conducted using a recognised systems-based investigation methodology that identifies:
• The problems (the what?);
• The contributory factors that led to the problems (the how?), taking into account the environmental and hum an factors; and
• The fundamental issues/root cause (the why?) that need to be addressed. Within the NHS, the recognised approach is commonly termed Root Cause Analysis (RCA) investigation. The investigation must be undertaken by those with appropriate skills, training and capacity." (p23, Serious Incident Framework)

It further states that investigation team members must have "knowledge of what constitutes an effective systems investigation process, and the skills/ competencies to lead and deliver this" (p37). Recognising that there are well identified and publicised issues with the quality of patient safety investigations in the NHS, there is ongoing work, as part of the NHS Patient Safety Strategy, to pilot a new framework for incident response: the Patient Safety Incident Response Framework (PSIRF). This framework focusses on the importance of conducting a system-based patient safety incident investigation. Much like the Serious Incident Framework, the PSIRF, and the Patient Safety Incident Investigation Standards which sit alongside it, require investigators to be appropriately trained. NHS England and NHS Improvement are working with the Healthcare Safety Investigation Branch (HSIB); who are testing and introducing national patient safety incident investigation training. In addition, a patient safety incident investigation training procurement framework is also being developed to support healthcare providers and commissioners to access quality assured investigation training. Thank you for bringing this important patient safety issue to my attention and please do not hesitate to contact me should you need any further information.

Report sections

Investigation and inquest
On 11/11/2020 I commenced an investigation into the death of Stephen James Oakes, aged 59. The investigation concluded at the end of the inquest on 19th April 2021. The deceased had suffered with pain in his back and a cough since December 2014. He was seen by a number of doctors but the cause was not identified. In July 2016 he was diagnosed with carcinoma of the lung which had metastasised. On the evening of the 21st December 2017 he was admitted to the University Hospital North Midlands with a history of abdominal pain and vomiting. A CT scan suggested a remediable bowel obstruction due to the metastatic cancer and changes suspicious of existing left lower lobe infection. A nasogastric tube was placed to decompress the stomach. Conservative management was planned for 24 hours to see if the problem resolved, failing which surgery was a consideration. At 06.17 hours on the 23rd December 2017 he deteriorated significantly and was vomiting past the nasogastric tube. A chest film showed changes consistent with aspiration pneumonia. He died at the hospital at 20.30 hours on the 23rd December 2017. The following probably contributed to the death:- The use of an nasogastric tube which was unsuitable when used for stomach decompression. A failure to recognise that the nasogastric tube was inadequately draining and to consider alternative methods of treatment. The following possibly contributed to the death:- Miscommunication between Enteral, the manufacturer of the tube and the Hospital trust as to the correct usage of the carefeed 14F nasogastric tube. A failure by the trust to adequately evaluate the nasogastric tube during the procurement process. The cause of death was:- 1a Aspiration pneumonia 1b Small bowel obstruction secondary to metastatic carcinoma 1c Metastatic bronchial carcinoma The conclusion of the inquest was The deceased died from complications caused by the use of a carefeed 14F nasogastric tube which inadequately drained stomach contents allowing vomiting passed the tube leading to aspiration pneumonia on a background of significant natural disease.
Circumstances of the death
See above
Action should be taken
In my opinion action should be taken to prevent future deaths and I believe you

1. Enteral (GB) UK
2. University Hospital Of North Midlands
3. Nursing Times Publications Editor
4. NHS England Small Bore Connector Clinical Advisory group (Supply Chain Stakeholders MHRA/NHS Supply Chain/British Standards and Industry Groups)
5. ISO Standards and/or your organisation have the power to take such action.

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Shared signals

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Report details

Reference
2021-0114
Date of report
19 April 2021
Coroner
Margaret Jones
Coroner area
Stoke-on-Trent & North Staffordshire Coroner’s Court

Responses identified

Responses identified 4 of 3
All listed responses identified

Organisations named in PFD reports are normally expected to respond within 56 days. Deadline: 28 Jun 2021.

Sent to

Enteral (GB) UK, University Hospital of North Midlands, Nursing Times, NHS England and ISO Standards Agency
Industry Groups
Supply Chain Stakeholders

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