Timely detection and treatment of cauda equina syndrome

HSIB Legacy Published
Published 8 April 2022 · Launched 11 March 2020
Emergency care Access to care

Cauda equina syndrome (CES) is a rare and severe type of spinal stenosis. If CES is not diagnosed and treated in a timely way it can lead to permanent incontinence, sexual dysfunction and even paralysis.

5 recommendations
4 observations
2 actions
5 of 5 responded

Safety Recommendations (5)

British Association of Spine Surgeons R/2021/139
HSIB recommends that the British Association of Spine Surgeons, supported by the Royal College of Surgeons of England and the Royal College of Emergency Medicine, develops a decision-making tool to support the identification of patients who need an immediate MRI for suspected cauda equina syndrome (which may result in the patient being transferred for MRI if this is not immediately available at the assessing site).
The British Association of Spine Surgeons will oversee a review of existing documentation, survey surgeons, and conduct an evidence review. They will then develop a collaborative document, including a decision-making tool, with partner colleges.
The British Association of Spine Surgeons (BASS) welcomes this report and the safety recommendations to improve the care of patients suffering from cauda equina syndrome (CES). We recognise a number of different guidelines and pathways are already available, as well as safety netting advice from nationally recognised bodies (including National Institute of Health and Clinical Excellence, and the Chartered Society of Physiotherapy). We will oversee a review of available documentation and propose consolidated guidance for the recommendations proposed. We will also carry out a survey of surgeons involved in the care of CES patients to inform the process as well as carry out an evidence review of the subject. The aim of the work we will do is to provide a collaborative document (with the Royal College of Surgeons of England, Royal College of Radiologists and the Royal College of Emergency Medicine) to establish agreed standardised terms, a decision making tool, time frames for scanning and referral and improving the surgical aspect of the pathway. We recognise that the majority of patients presenting as suspected CES in the United Kingdom (UK) are not shown to be surgical emergencies and any guidance needs to ensure that the screening process for a suspected CES is as rapid as possible to facilitate access to emergency surgery when required. This may well need a change in current working practice across the UK. Action: Review of current published guidelines with RCR, RCS, RCEM, RCGP, interface clinicians. Review of evidence and a surgeon survey with patient groups, interface clinicians and GPs. Response received on 15 November 2021.
British Association of Spine Surgeons R/2021/141
HSIB recommends that the British Association of Spine Surgeons oversees the development of national guidance to identify how ‘urgent’ and ‘emergency’ requests for scans for suspected cauda equina syndrome are defined and prioritised
The British Association of Spine Surgeons will review existing guidelines, conduct an evidence review and surgeon survey to inform the development of national guidance for suspected Cauda Equina Syndrome. This will include defining urgent and emergency scan requests.
Action: Review of current published guidance with RCR, RCS, RCEM, RCGP, interface clinicians. Review of evidence and surgeon survey with patient groups, interface clinicians and GPs. Response received on 15 November 2021.
Royal College of Radiologists R/2021/140
HSIB recommends that guidance is developed by the Royal College of Radiologists, supported by the Society and College of Radiographers, stating that all hospitals should reserve the first MRI slot of the day for patients with suspected cauda equina syndrome who do not meet the criteria for an ‘emergency’/immediate scan overnight.
The Royal College of Radiologists is developing imaging protocol standards for Cauda Equina Syndrome, in collaboration with partners. This guidance, due by Spring 2022, will support protected MRI time and increased availability for these patients.
The Royal College of Radiologists welcomes this report and extends our sympathies to this patient. We recognise the current difficulties faced by imaging services in providing timely access for all patients requiring MRI scans, particularly those with suspected Cauda Equina Syndrome, and on behalf of the Clinical Imaging Board we have been developing standards for imaging protocols for Cauda Equina Syndrome. This work is taking place in collaboration with partner organisations The Society and College of Radiographers, The Institute of Physics and Engineering in Medicine, The British Society of Skeletal Radiologists, and The British Society of Neuroradiologists. The guidance will support protected time and increased availability of MRI slots to accommodate patients with suspected Cauda Equina Syndrome. Action: Guidance development by Spring 2022. Working party in place through the Clinical Imaging Board. Representation from RCR, SCoR, IPEM, BSNR, BSSR. Response received on 5 November 2021.
National Institute for Health and Care Excellence R/2021/142
HSIB recommends that the National Institute for Health and Care Excellence updates its current low back pain guideline to include the symptoms and initial management of cauda equina syndrome. This update should include a review of the role of supplementary investigations, such as bladder scanning, in patients with suspected cauda equina syndrome
The National Institute for Health and Care Excellence (NICE) will update its low back pain and sciatica guideline (NG59) to specifically include cauda equina syndrome, addressing its assessment and management.
Following consideration of the Healthcare Safety Investigation Branch’s report, the National Institute for Health and Care Excellence (NICE) will update its guideline on low back pain and sciatica in over 16s [NG59] to include cauda equina syndrome. Cauda equina syndrome was outside the scope of the original guideline and so it does not make recommendations on the assessment or management of people with this condition. In its guideline on suspected neurological conditions: recognition and referral [NG127], NICE recommends that clinicians refer immediately adults who have severe low back pain radiating into the leg and new-onset disturbance of bladder, bowel or sexual function, or new-onset perineal numbness, to have an assessment for cauda equina syndrome (see recommendation 1.7.3). Action: Commission update of NG59 and update NG59 to include cauda equina syndrome. Response received on 12 November 2021.
NHS England R/2021/143
HSIB recommends that NHS England and NHS Improvement develops a national cauda equina syndrome pathway. This should define the safety-critical elements of the pathway and highlight areas that can be adapted locally
NHS England and NHS Improvement, through GIRFT and BestMSK, have already developed and published a national suspected Cauda Equina Syndrome pathway. This pathway, created with multidisciplinary input, is now being implemented nationally.
Following publication of the Getting It Right First Time (GIRFT) national report for spinal services and the HSIB 2021 investigation into the safety risks of suspected Cauda Equina Syndrome (CES) patients, there has been a significant focus on CES, as per the recommendations outlined in both documents. A national suspected CES pathway has now been developed and published by GIRFT and the former BestMSK programme with input from a multidisciplinary group of more than 60 health professionals, and co-badging from partner organisations including the Royal College of Radiologists, British Association of Spinal Surgeons, British Orthopaedic Association, National Spine Network, Cauda Equina Champions Charity, British Society of Skeletal Radiologists, British Association of Urological Surgeons and the Chartered Society of Physiotherapy. The pathway has been well received and spinal colleagues nationally are now keen to implement this in order to diagnose and treat the condition without delay and improve patient outcomes. Response received on 5 April 2023.

Safety Observations (4)

It may be beneficial for all hospitals where patients with potential cauda equina syndrome may present to have access to MRI scanning and reporting 24 hours a day, 7 days a week.
It may be beneficial for NHS spinal networks in England to implement services and processes to support timely access to MRI for patients with suspected cauda equina syndrome, in line with national guidance to be developed by the British Association of Spine Surgeons.
It may be beneficial for hospital trusts without 24 hours a day, 7 days a week MRI provision and the potential to see patients with suspected cauda equina syndrome to consider expanding the skills of their radiographers to allow out-of-hours MRIs if required. Projects such as those described in this report may support this.
It may be beneficial for safety-netting leaflets to be given to patients with low back and radicular pain. Leaflets should use clear and concise language, and provide clear directions as to what a patient should do if they develop red flag symptoms.

Safety Actions (2)

The regional specialist spinal centre described in this report has worked with the electronic referral system manufacturer to ensure alerts are received by neurosurgical doctors. This has included doctors having a single ‘baton’ telephone that receives the alert, with the telephone being passed to the next doctor at shift handover.
The British Orthopaedic Association has started to develop a Standard for Trauma and Orthopaedics (BOAST) to support the diagnosis and management of cauda equina syndrome in the non-specialist setting