Carotid endarterectomy in the East of England: hospitals compared

A carotid endarterectomy is an operation to remove fatty deposits from one of the carotid arteries in the neck, which carry blood to the brain. Narrowed carotid arteries increase the chance of a stroke or transient ischaemic attack (TIA), and the operation helps to prevent stroke.

The operation usually takes 1 to 2 hours, and you may stay in hospital for a few days. It is often done soon after a TIA or minor stroke. The National Vascular Registry publishes each trust's rate of stroke or death after the operation, adjusted for differences between patients.

Hospitals in the East of England

7 trusts in the East of England with published figures. Sorted by name. This is not a ranking: read how to read this first.

Carotid endarterectomy: trusts in the East of England, Carotid endarterectomies in 2024 (NVR)
TrustVolume bandCarotid endarterectomies in 2024 (NVR)Key outcomeStroke or death within 30 days (adjusted)Waiting timeWhole trustPatient experienceCQC rating
Bedfordshire Hospitals NHS Foundation TrustWhole trust. Hospitals: Bedford Hospital, Luton and Dunstable Hospital50 or more50 carotid endarterectomies in 20241.4%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 0.93 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 66 cases, 16.9 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 6 cases FY2025-26
Not published for this specialtyAbout the same as other trustsInpatients rated their overall experience 8.1 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Bedford Hospital: No Approved Rating (CQC report for Bedford Hospital)
Luton and Dunstable Hospital: Requires improvement (CQC report for Luton and Dunstable Hospital)
Cambridge University Hospitals NHS Foundation TrustWhole trust. Hospitals: Addenbrooke’s and the Rosie Hospitals, Princess of Wales Hospital50 or more76 carotid endarterectomies in 20242.0%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 0.99 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 95 cases, 26.1 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 4 cases FY2025-26
Not published for this specialtyAbout the same as other trustsInpatients rated their overall experience 8.1 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Good (CQC report for Addenbrooke's and the Rosie Hospitals)
East and North Hertfordshire Teaching NHS TrustWhole trust. Hospitals: Hertford County Hospital, Lister Hospital, Queen Elizabeth II HospitalFewer than 3024 carotid endarterectomies in 20241.1%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 0.92 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 42 cases, 20.5 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 3 cases FY2025-26
Not published for this specialtySomewhat worse than expectedInpatients rated their overall experience 7.8 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Hertford County Hospital: Good (CQC report for Hertford County Hospital)
Lister Hospital: Requires improvement (CQC report for Lister Hospital)
Queen Elizabeth II Hospital: Requires improvement (CQC report for Queen Elizabeth II Hospital)
East Suffolk and North Essex NHS Foundation TrustWhole trust. Hospitals: Colchester General Hospital, The Ipswich Hospital40 to 4949 carotid endarterectomies in 20240.0%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 1.16 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 116 cases, 26.3 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 6 cases FY2025-26
Not published for this specialtyAbout the same as other trustsInpatients rated their overall experience 7.9 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Colchester General Hospital: Requires improvement (CQC report for Colchester General Hospital)
The Ipswich Hospital: Requires improvement (CQC report for The Ipswich Hospital)
Mid and South Essex NHS Foundation TrustWhole trust. Hospitals: Basildon University Hospital, Broomfield Hospital, Orsett Hospital, Southend University Hospital, St Peter’s HospitalCase ascertainment published as 70%-84%: not every operation was entered in the registry.50 or more50 carotid endarterectomies in 20242.3%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 1.13 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 109 cases, 17.2 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 4 cases FY2025-26
Not published for this specialtyAbout the same as other trustsInpatients rated their overall experience 7.9 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Basildon University Hospital: Inadequate (CQC report for Basildon University Hospital)
Broomfield Hospital: Requires improvement (CQC report for Broomfield Hospital)
Southend University Hospital: Requires improvement (CQC report for Southend University Hospital)
Norfolk and Norwich University Hospitals NHS Foundation TrustWhole trust. Hospitals: Norfolk and Norwich University Hospital30 to 3937 carotid endarterectomies in 20241.2%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 1.17 (Higher than expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 62 cases, 18.4 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 2 cases FY2025-26
Not published for this specialtyAbout the same as other trustsInpatients rated their overall experience 8.2 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Requires improvement (CQC report for Norfolk and Norwich University Hospital)
West Hertfordshire Teaching Hospitals NHS TrustWhole trust. Hospitals: Hemel Hempstead General Hospital, St Albans City Hospital, Watford General HospitalFewer than 3029 carotid endarterectomies in 20243.3%National: 1.8%No banding published
More measures
  • Summary Hospital-level Mortality Indicator (SHMI), whole trust: 0.97 (As expected) 2025-06 to 2026-05
  • C. difficile infections that started in hospital (whole trust, not adjusted for case mix): 32 cases, 15.8 per 100,000 bed-days FY2025-26
  • MRSA bloodstream infections that started in hospital (whole trust, not adjusted for case mix): 0 cases FY2025-26
Not published for this specialtySomewhat worse than expectedInpatients rated their overall experience 7.8 out of 10 (CQC Adult Inpatient Survey 2025, whole trust)Hemel Hempstead General Hospital: Requires improvement (CQC report for Hemel Hempstead General Hospital)
St Albans City Hospital: Requires improvement (CQC report for St Albans City Hospital)
Watford General Hospital: Requires improvement (CQC report for Watford General Hospital)

How to read this

  • Not a ranking. The table is in alphabetical order. A higher volume does not on its own mean better care, and we do not combine the columns into a score.
  • Volume bands. Cut points are the lower quartile, median and upper quartile of all 66 trusts and health boards in the NVR table in the published table, rounded. So about a quarter of trusts and health boards in the NVR table fall in each band. The exact number is shown under the band.
  • Risk adjustment. Where a figure says “adjusted”, the audit has allowed for differences in the patients each hospital treats, such as age and other illnesses. Hospitals that take on more complex cases can still look different for reasons the adjustment does not capture.
  • Bands and limits. We only say a result is higher or lower than expected when the source itself says so (for example NJR outlier status, NELA funnel limits, SSNAP levels, CQC survey bands). Where the source publishes a rate without limits we show the rate and the national figure, and say “No banding published”.
  • Small numbers. A small hospital can have 0% or a high percentage by chance. Figures the source suppresses are shown as “Not published (small numbers)”.
  • Trust or hospital. This audit publishes figures for each NHS trust, which may run several hospitals. The operation may only be done at one of them.
  • Different periods. Each figure has its own period, shown next to it. Audit results describe operations done one to three years ago; waiting times are updated monthly.
  • National figures. National figure: England row of the NVR appendix tables.
  • Talk to your GP or consultant about what the figures mean for you. If you are referred for planned care in England, you can usually choose your hospital.

Full definitions: methodology and data dictionary.

Data sources and licences

Data last updated 26 October 2026. We do not change the published figures; we only group volumes into bands. Spotted a mistake? Tell us.

Sources

We checked this guide against these official pages on 26 October 2026.

Spotted something out of date? Tell us.