Maternal confidential enquiries
MBRRACE-UK conducts confidential enquiries into the deaths of all women who die during pregnancy or up to a year after the end of pregnancy in the UK and Republic of Ireland. MBRRACE-UK also undertakes confidential enquiries into selected maternal morbidity topics and perinatal morbidity and mortality topics.
What is a Confidential Enquiry?
A confidential enquiry is a systematic process of expert, multidisciplinary review of the care received by individuals with a specific condition occurring in a defined geographical area during a defined period of time. If the number of individuals is small, as with deaths of women during or up to a year after pregnancy, it is possible and generally necessary to review them all. If the number of individuals is large, the care of a sample of individuals may be used for the enquiry, as with MBRRACE-UK's maternal morbidity confidential enquiries
As indicated by the name, this process is entirely confidential and anonymous. Care is reviewed by experts from different hospitals or regions and all reviewers are required to sign confidentiality agreements and disclose any conflicts of interest.
The aim of confidential enquiries is not to place blame, but to review the quality of the care provided and identify lessons that can help prevent future deaths or morbidities. To do this, care is reviewed against existing guidelines or best practices.
Topics covered in the confidential enquiries into maternal deaths
Topic-specific chapters appear in MBRRACE-UK annual reports once in a three-year cyclical basis. As such, all causes of maternal death are covered once every three years, but reviews concerning particular causes of death may be expedited if concerning trends are observed in specific mortality rates.
The current three-year cycle of topic-specific chapters is shown below:
- Year 1 (2023, 2026, 2029): Deaths from obstetric haemorrhage, amniotic fluid embolism, anaesthesia, infection (direct and indirect) and neurological complications and deaths in women with general medical and surgical disorders (other indirect deaths)
- Year 2 (2024, 2027, 2030): Deaths due to thrombosis and thromboembolism, malignancy (direct, indirect and coincidental) and early pregnancy disorders
- Year 3 (2025, 2028, 2031): Deaths from psychiatric causes (suicide and non-suicide), cardiac causes, pre-eclampsia and eclampsia, accidental deaths and homicide
Review of women's care
Assessments
For the maternal programme, MBRRACE-UK has over 100 expert assessors from various specialty groups who review the care of the women who died in the UK and Republic of Ireland during or up to a year after pregnancy.
Each death is reviewed by assessors in four main areas: pathology, obstetrics, midwifery and anaesthetics. Where appropriate, care is also reviewed by speciality assessors such as psychiatrists, general practitioners and emergency medicine specialists. All reviews have a primary assessor from each specialty and, if specific issues are identified, a second assessor may also review the woman's care.
Assessments begin with a summary of circumstances surrounding the woman's death or illness. Care is then reviewed against guidance from sources such as the National Institute for Health and Care Excellence (NICE) and the Scottish Intercollegiate Guidelines Network (SIGN). Lessons that can be learned from the woman's care and the quality of her care is determined based on the assessor's judgement.
For more information on the roles and responsibilities of MBRRACE-UK assessors, please vist the maternal assessors page.
Classifying the quality of care
As part of their review, assessors give their opinion on the quality of care according to the criteria below:
- Good care; no improvements identified
- Improvements in care identified which would have made no difference to the outcome
- Improvements in care identified which may have made a difference to the outcome
Improvements in care may be associated with guidelines, where these exist and have not been followed, as well as other improvements that would normally be considered part of good care but where no formal guidelines exist.
Identification of Cause for Concern
Assessors are also asked to identify whether any woman's death should be flagged as a Cause for Concern for Communication to the Trust Medical Director and Healthcare Quality Improvement Partnership (HQIP). HQIP has a standard protocol for all the Clinical Outcome Review Programmes to escalate major concerns about care where it is clear these concerns have not been addressed at a local level.
Chapter writing
After each women's care is reviewed, chapter-writing groups are organised that include representatives from the relevant specialist assessor group. The chapter-writing groups discuss the reviews of all of the women in the UK and Ireland who died from a specific cause of death in a defined three year period.
At the chapter-writing sessions, the expert assessments of each woman's care are examined to identify the main themes and lessons to include in the MBRRACE-UK Saving Lives, Improving Mothers' Care report. The cause of death and classification of the quality of care are also discussed to ensure that all deaths are appropriately categorised.
Lead members of each chapter-writing group draft the confidential enquiry chapters, which are then edited by MBRRACE-UK collaborators and reviewed by all the other group members and editors. If required, chapters may also undergo external peer review. Within the chapters, lessons are linked to existing guidance or past MBRRACE-UK reports to identify areas where there needs to be improved implementation of recommendations. New national recommendations to improve future care are also created based on lessons identified through the confidential enquiry process. These recommendations are directed at national organisations including the Royal Colleges, NICE, NHS England and the governments of Wales, Scotland and Northern Ireland who have the power to implement any areas for improvement identified by the confidential enquiry process.
The confidential enquiry into maternal morbidity
In addition to the confidential enquires into maternal deaths, MBRRACE-UK also conducts an annual, topic-specific confidential enquiry into maternal morbidity. Topics for the maternal morbidity enquiry are proposed by clinicians, policy-makers, third sector organisations and members of the public and the final topic is chosen by the MBRRACE-UK Independent Advisory Group. Women included in these enquiries are identified in different ways according to the topic and morbidity enquiries are run in the same manner as outlined above.
Past topics for the confidential enquiry into maternal morbidity are shown below:
Maternal morbidity confidential enquiry topics | Start date | Publication date |
---|---|---|
Recently arrived migrant women with language difficulties (joint enquiry with the perinatal programme) | 2023 | 2024 |
Multiple repeat caesarean section complications | 2022 | 2023 |
Multiple maternal morbidities | 2021 | 2022 |
Older maternal age | 2020 | 2021 |
Pulmonary embolism | 2019 | 2020 |
Breast cancer in Pregnancy | 2018 | 2019 |
Massive obstetric haemorrhage including cases where a peripartum hysterectomy was performed | 2017 | 2018 |
Women with severe epilepsy | 2016 | 2017 |
Women with artificial heart valves | 2015 | 2016 |
Admission with post-partum psychosis in women with a history of bipolar disorder or previous post-partum psychosis | 2014 | 2017 |
Severe maternal sepsis | 2013 | 2014 |