Obstetrics and Gynaecology

Managing obstetric bleeding in Wales: A qualitative evaluation of the OBS Cymru care bundle using Normalisation Process Theory (2025)

Posted on by

Type of publication:

Journal article

Author(s):

Rai, Tanvi; Hinton, Lisa E; Mackay, Rosa; Black, Mairead; Sanders, Julia; Slade, Pauline; *Elsmore, Amy; Dhadda, Amrit; *Parry-Smith, William; Collis, Rachel; Petrou, Stavros; Stanworth, Simon; Pallman, Philip; Townson, Julia; Fye, Haddy; Geden, Ayse Gur; Collins, Peter; Bell, Sarah.

Citation:

PLoS ONE [Electronic Resource]. 20(4):e0320754, 2025.

Abstract:

BACKGROUND: Post-partum haemorrhage (PPH) is one of the leading causes of maternal mortality and morbidity worldwide. The Obstetric Bleeding Strategy (OBS) care bundle for PPH management was adopted into Welsh national guidelines in 2019 (as OBS Cymru), and is currently being implemented across 36 sites in the rest of the UK through the OBS UK stepped-wedge cluster randomised controlled trial. We conducted a qualitative evaluation of the OBS care bundle five years after its adoption to inform plans for optimising its implementation across the UK.

METHODS: We conducted ethnographic observations, informal conversations and qualitative interviews with multidisciplinary teams (MDT) in four maternity units in Wales. Data were analysed thematically and usingNormalisation Process Theory.

RESULTS: The OBS Cymru protocol was used daily and MDT members believe it improves the quality and safety of PPH management. The paper proforma supporting OBS Cymru was the 'boundary object' that kept the care bundle in view while clarifying individualised roles across the MDT during a PPH and prompting improved and continuous communication as bleeding progressed. The standardisation of processes through the care bundle was seen as enabling all staff with an overall knowledge of PPH care, while situating the prominence of their particular roles within a greater whole. Enacting the bundle in practice varied slightly across different settings, according to staffing structures (e.g., in delivery rooms versus theatre births) and caseload, and some residual tensions remained regarding expectations from different staff members and levels of support provided regarding OBS Cymru.

CONCLUSIONS: Despite some small-scale variations, OBS care bundle has become normalised as standard PPH care in Wales. Insights from this evaluation, such as the centrality of the proforma in holding the bundle together, and need for greater clarity in staff role expectations, have informed implementation plans for the OBS UK trial.

Link to full-text [open access - no password required]

Is It Cost-Effective to Induce Labour Early to Prevent Shoulder Dystocia? Evidence From the Big Baby Trial (2025)

Posted on by

Type of publication:

Journal article

Author(s):

Naghdi, Seyran; Petrou, Stavros; Underwood, Martin; *Deshpande, Sanjeev; Quenby, Siobhan; Ewington, Lauren; Gardosi, Jason; Mistry, Hema.

Citation:

BJOG: An International Journal of Obstetrics & Gynaecology. 2025 May 01. [epub ahead of print]

Abstract:

BACKGROUND: The cost-effectiveness of early induction of labour for suspected large-for-gestational-age foetuses to prevent shoulder dystocia is unknown.

METHODS: A within-trial economic evaluation of induction at 38 + 0 to 38 + 4 weeks' gestation for suspected large-for-gestational-age foetuses. Resource use and costs were measured to 6 months postpartum. We estimated incremental cost per case of shoulder dystocia prevented and incremental cost per maternal quality-adjusted life year (QALY) gained. We collected data for planned caesarean sections in a cohort study.

FINDINGS: Mean combined woman and infant costs in the induction arm were 89 (95% confidence interval (CI): -79, 257) higher than the standard care arm, driven by increased neonatal costs. The incremental cost of preventing one case of shoulder dystocia was 11 879 and the incremental cost per maternal QALY gained was 39 518. The probability of early induction being cost-effective was 0.65 at a cost-effectiveness threshold of 20 000 per case of shoulder dystocia prevented, but 0.36 at a cost-effectiveness threshold of 20 000 per maternal QALY gained. The cohort study found the mean cost was 310 (95% CI: 74, 545) higher in the induction arm than in the planned caesarean group.

INTERPRETATION: Early induction of labour increased neonatal care costs. It is not a cost-effective approach when effects are restricted to maternal QALYs. Planned caesarean section might be cost-saving when compared to early induction, although we did not assess longer-term effects such as an increased risk of repeat caesarean sections. Assessments of long-term effects on the mother and infant should be
incorporated into future studies.

TRIAL REGISTRATION: ISRCTN18229892.

Link to full-text [open access - no password required]

Image-guided brachytherapy for locally advanced cervical cancer: audit of practice at UHNM 2023 and re-audit 2024 (2025)

Posted on by

Type of publication:

Conference abstract

Author(s):

Perera J.; Bhana R.; *Choudhury Y.; Devleena D.; Seedhouse I.; Tsui S.M.

Citation:

Clinical Oncology. Conference: SUPP: RCR Audit & QI ePoster Competitions 2024. InterContinental Hotel, Dubai Festival City United Arab Emirates. 40(Supplement 1) (no pagination), 2025. Article Number: 103820. Date of Publication: 01 May 2025.

Abstract:

Category: Gynaecology Background to the audit: Standard treatment for locally advanced cervix cancer consists of chemoradiotherapy followed by brachytherapy. Trial data show shortening overall treatment time and escalation of doses to the high-risk clinical target volume (HR-CTV) to be associated with better local control. Image-guided brachytherapy (IGBT) enables greater dose conformity and local control.<sup>1-6</sup>UHNM commenced a magnetic resonance-based IGBT service for cervical cancer in 2016. Standard: BGCS/ESGO/ESTRO/ESP/ASTRO guidelines on management of cervical cancer.<sup>7-9</sup>1. Overall treatment time should not exceed 49-56 days. 2. Total equivalent dose in 2 Gy fractions (EQD2) to 90% of the HR-CTV (D90) to be >=85 Gy. Indicator: Percentage of patients meeting each standard. Target: 100% having overall treatment less than 56 days. 90% achieving the dose to HR-CTV targets keeping organs at risk(OAR) within tolerence. Methodology: Retrospective analysis of data on IGBT for radical cervical cancer treatments from 1 January 2021 to end of March 2023 done and reviewed at May 2023 UHNM brachytherapy meeting. Initial time span selected to minimise impact of COVID. Action plan implemented and patient data for April 2023 to April 2024 re-audited. Results of first audit round: 43 UHNM and Shrewsbury patients treated. Overall treatment time data available only for 20 UHNM patients. 1 (5%) had exceeded 56 days and 7 (35%) had taken 50-56 days to complete. 37/43 (86.1%) had received a D90 HR-CTV of >85 Gy. A linear relationship between external beam radiation therapy (EBRT) completion to brachytherapy start with total treatment duration identified. First action plan: Pathway changes made to commence chemoradiotherapy on Monday/Tuesday and to schedule the whole course of chemoradiotherapy and brachytherapy at the time of referral. Ring and tandem commissioned as a priority to allow more applicator options. Results of second audit round: All 26 (100%) UHNM and Shrewsbury patients had completed treatments within 56 days. 73.1% within 49 days. 1 outside patient's chemoradiotherapy data incomplete. HR-CTV D90 >85 Gy in 85.2%. 8 patients treated with ring and tandem with 60% more needle use compared with ovoids. No patient exceeded mandatory OAR tolerences. Second action plan: Proactively scheduling brachytherapy, liaising with the regional network monthly to optimise timing and resources usage. To continue with dosimetric data collection to optimise needle placement and to review impact of needles on OAR doses and clinical outcomes in the next audit.

Rising incidence of necrotising fasciitis: a gynaecological perspective (2025)

Posted on by

Type of publication:

Journal article

Author(s):

*Kaur, Harpreet; *Adekunle, Adeoye; *Ritchie, Joanne; *Rachaneni, Suneetha.

Citation:

BMJ Case Reports. 18(4), 2025 Apr 08.

Abstract:

Necrotising fasciitis is an uncommon and rapidly progressive surgical emergency. A high index of clinical suspicion, prompt administration of broad-spectrum antibiotics and emergency surgery to debride affected tissues are key to improving survival. With our review of three cases, we aim to raise awareness of this condition among gynaecologists, who have limited familiarity with it. Two of our patients presented to emergency with vulval necrotising fasciitis while the third developed it as a complication of postoperative wound infection. All patients underwent extensive surgical debridement and required a multidisciplinary approach from gynaecologists, surgeons, the intensive care team and the tissue viability team.

Link to full-text [NHS OpenAthens account required]

The OASI Care Bundle (OASI: Obstetric Anal Sphincter Injury) (2024)

Posted on by

Type of publication:

Service improvement case study

Author(s):

*Hannah Evans

Citation:

SaTH Improvement Hub, December 2024

Abstract:

By implementing the OASI Care Bundle at our Trust, we aim to reduce the risk of OASI and ultimately reduce the incidence of severe perineal trauma and improve outcomes for pelvic health. This can be achieved by education, awareness and information provision for both maternity staff and service users.

Link to PDF poster

Ethnic and Socioeconomic Variation in Pre-Conception Long-Term Conditions: A Cross-Sectional Electronic Health Record Study of 3.4 Million Pregnancies in CPRD Aurum (2025)

Posted on by

Type of publication:

Journal article

Author(s):

Cockburn N.; Singh M.; Wambua S.; Gonzalez-Izquierda A.; Lee S.I.; Phillips K.; *Elsmore A.; *Ilaalagan R.; Holland R.; Hanley S.J.; Laws E.; Hodgetts-Morton V.; Gibbon M.; Judd N.A.; Seymour R.G.; Taylor B.; Chandan J.S.; *Parry-Smith W.; Nirantharakumar K.

Citation:

SSRN. (no pagination), 2025. Date of Publication: 23 Jan 2025 [preprint]

Abstract:

Background: Inequalities in pregnancy outcomes between different ethnic groups and backgrounds of deprivation have been observed in the UK and elsewhere for several decades. Pre-existing long-term health conditions increase risks of adverse outcomes and require focussed action to diagnose, prevent, and manage these conditions. We aimed to estimate differences in the prevalence of pre-conception long-term conditions between different groups to assess health needs.

Methods: This was a cross-sectional study conducted in primary care using Clinical Practice Research Datalink (CPRD) Aurum data. Diagnostic information was extracted from CPRD Aurum at the beginning of all eligible pregnancies for 79 conditions between 2000 and 2021. Age-standardised was estimated and risk ratios calculated between the overall population, and ethnic groups and Index of Multiple Deprivation quintiles. Statistical process control was used to detect conditions with elevated prevalence within groups.

Findings: In 2021, at the start of a pregnancy, women from ethnic minority groups were less likely to have been diagnosed with any one of the 79 conditions than the general population. Women from mixed ethnic groups were 4% more likely to be diagnosed, and from white ethnic groups 2% more likely to be diagnosed. Women from black groups were 5% less likely to be diagnosed, from Asian groups 26%, other ethnic groups 32%, and women missing ethnic group information 13%. Women living in the most deprived quintile of areas were 8% more likely to have been diagnosed than the overall population, and from least deprived areas 8% less likely to have been diagnosed.

Interpretation: Pre-existing long-term conditions are a major driver of maternal morbidity and mortality, but the healthcare needs and policy priorities differ substantially between ethnic and socially disadvantaged groups. Universal health policies that narrow inequalities and targeted action are both needed to meet health needs equitably.

Link to full-text [no password required]

Placenta accreta spectrum: imaging and diagnosis (2025)

Posted on by

Type of publication:

Journal article

Author(s):

*Self A.; Cavallaro A.; Collins S.L.;

Citation:

Obstetrician and Gynaecologist. (no pagination), 2025. Date of Publication: 2025.

Abstract:

Key content: Antenatal imaging is a screening tool integral to ensuring women are cared for in the most appropriate setting. The pretest probability of PAS should be considered before any imaging is performed. PAS is an iatrogenic disease. Any process which disrupts the endometrium increases the risk. Caesarean birth is the most common cause. Specialist placental assessment in asymptomatic women should be offered between 24 and 28 weeks. Ultrasound and MRI have similar diagnostic value, and MRI should only be used as an adjunct following ultrasound assessment by a specialist in placental imaging. Learning objectives: To understand the pathophysiology of PAS. To understand the distinction between screening for and diagnosis of PAS. To increase confidence in the interpretation of sonographic features of PAS. To provide a rationale for PAS care being provided in centres of excellence. Ethical issues: If women increasingly prefer caesarean section over vaginal birth, it is likely that this trend will result in increasing numbers of complex caesarean deliveries and PAS cases. Many studies have shown decreased morbidity and mortality if PAS cases are managed by an experienced multi-disciplinary team (MDT) in a PAS centre of excellence; therefore, accurate screening and timely referral are vital to improve patient care for women with risk factors.

Link to full-text [open access - no password required]

The OBS UK Dashboard: an interactive tool for representative trial site selection to facilitate equality and diversity in maternity research (2024)

Posted on by

Type of publication:

Journal article

Author(s):

*Elsmore, Amy; Rai, Tanvi; Pallmann, Philip; Townson, Julia; Kotecha, Sarah; Black, Mairead; Sanders, Julia; Collis, Rachel; Collins, Peter; Karunakaran, Bala; Wu, Pensee; Bell, Sarah; *Parry-Smith, William

Citation:

Trials. 25(1):629, 2024 Sep 27.

Abstract:

BACKGROUND: Obstetric Bleeding Study UK (OBS UK) (award ID: 152057) is a National Institute for Health and Care Research (NIHR)-funded stepped wedge cluster randomised controlled trial of a complex intervention for postpartum haemorrhage. This was developed in Wales and evaluated in a feasibility study, with improvements in maternal outcomes observed. Generalisability of the findings is limited by lack of control data and limited ethnic diversity in the Welsh obstetric patient population compared to the United Kingdom (UK): 94% of the Welsh population identifies as White, versus 82% in the UK. Non-White ethnicity and socioeconomic deprivation are linked to increased risk of adverse maternal outcomes. traditionally, decisions regarding site selection are based on desire to complete trials on target in 'tried and tested' research active institutions. To ensure widespread applicability of the results and investigate the impact of ethnicity and social deprivation on trial outcomes, maternity units were recruited that represent the ethnic diversity and social deprivation profiles of the UK. METHOD: Using routinely collected, publicly available data, an interactive dashboard was developed that demonstrates the demographics of the population served by each maternity unit in the UK, to inform site recruitment. Data on births per year, ethnic and socioeconomic group of the population for each maternity unit, across the UK, were integrated into the dashboard. RESULTS: The dashboard demonstrates that OBS UK trial sites reflect the ethnic and socioeconomic diversity of the UK (study vs UK population ethnicity: White 79.2% vs 81.7%, Asian 10.5% vs 9.3%, Black 4.7% vs 4.0%, Mixed 2.5% vs 2.9%, Other 3.0% vs 2.1%) with variation in site demography, size and location. Missing data varied across sites and nations and is presented. CONCLUSION: The NIHR equality, diversity and inclusion strategy states studies must widen

Link to full-text [open access - no password required]

Altmetrics:

Clinical decision support systems for maternity care: a systematic review and meta-analysis (2024)

Posted on by

Type of publication:
Journal article

Author(s):
Cockburn N.; Osborne C.; Withana S.; *Elsmore A.; *Nanjappa R.; South M.; *Parry-Smith W.; Taylor B.; Chandan J.S.; Nirantharakumar K.

Citation:
eClinicalMedicine. 76 (no pagination), 2024. Article Number: 102822. Date of Publication: October 2024.

Abstract:
Background: The use of Clinical Decision Support Systems (CDSS) is increasing throughout healthcare and may be able to improve safety and outcomes in maternity care, but maternity care has key differences to other disciplines that complicate the use of CDSS. We aimed to identify evaluated CDSS and synthesise evidence of their impact on maternity care. Method(s): We conducted a systematic review for articles published before 24th May 2024 that described i) CDSS that ii) investigated the impact of their use iii) in maternity settings. Medline, CINAHL, CENTRAL and HMIC were searched for articles relating to evaluations of CDSS in maternity settings, with forward- and backward-citation tracing conducted for included articles. Risk of bias was assessed using the Mixed Methods Assessment Tool, and CDSS were described according to the clinical problem, purpose, design, and technical environment. Quantitative results from articles reporting appropriate data were meta-analysed to estimate odds of a CDSS achieving its desired outcome using a multi-level random effects model, first by individual CDSS and then across all CDSS. PROSPERO ID: CRD42022348157. Finding(s): We screened 12,039 papers and included 87 articles describing 47 unique CDSS. 24 articles (28%) described randomised controlled trials, 30 (34%) described non-randomised interventional studies, 10 (11%) described mixed methods studies, 10 (11%) described qualitative studies, 7 (8%) described quantitative descriptive studies, and 7 (8%) described economic evaluations. 49 (56%) were in High-Income Countries and 38 (44%) in Low- and Middle-Income countries, with no CDSS trialled in both income categories. Meta-analysis of 35 included studies found an odds ratio for improved outcomes of 1.69 (95% confidence interval 1.24-2.30). There was substantial variation in effects, aims, CDSS types, context, study designs, and outcomes. Interpretation(s): Most CDSS evaluations showed improvements in outcomes, but there was heterogeneity in all aspects of design and evaluation of systems. CDSS are increasingly important in delivering healthcare, and Electronic Health Records and mHealth will increase their availability, but traditional epidemiological methods may be limited in guiding design and demonstrating effectiveness due to rapid CDSS development lifecycles and the complex systems in which they are embedded. Development methods that are attentive to context, such as Human Centred Design, will help to meet this need.

Link to full-text [open access - no password required]

Altmetrics: