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Trevor Yeung was presented with the award for the best basic scientific podium presentation at the recent ASCRS meeting in Phoenix. For His work on fluorescent lectins and colorectal cancer
Effect of carotid endarterectomy on 20 year incidence of recorded dementia: a randomised trial
Objective Stroke and carotid atherosclerosis are associated with dementia. Carotid endarterectomy (CEA) reduces stroke risk, although its effect on later dementia is uncertain. Participants in the Asymptomatic Carotid Surgery Trial (ACST-1), randomly allocated to immediate vs. deferral of CEA (i.e., no intervention unless or until triggered by ipsilateral transient ischaemic attack or stroke), were followed, to study effects on dementia. Methods From 1993 to 2003, ACST-1 included 3 120 participants with asymptomatic tight carotid stenosis. All UK and Swedish patients (n = 1 601; 796 immediate vs. 805 deferral) were followed with trial records, national electronic health record linkage, and (UK only) by post and telephone. Cumulative incidence and competing risk analyses were used to measure the effects of risk factors and CEA on dementia risk. Intention to treat analyses yielded hazard ratios (HRs; immediate vs. deferral) of dementia. Results The median follow up was 19.4 years (interquartile range 16.9 – 21.7). Dementia was recorded in 107 immediate CEA patients and 115 allocated delayed surgery; 1 290 patients died (1 091 [538 vs. 536] before any dementia diagnosis). Dementia incidence rose with age and with female sex (men: 8.3% aged < 70 years at trial entry vs. 15.1% aged ≥ 70; women: 15.1% aged < 70 years at trial entry vs. 22.4% aged ≥ 70 years) and was higher in those with pre-existing cerebral infarction (silent or with prior symptoms; 20.2% vs. 13.6%). Dementia risk was similar in both randomised groups: 6.7% vs. 6.6% at 10 years and 14.3% vs. 15.5% at 20 years, respectively. The dementia HR was 0.98 (95% confidence interval [CI] 0.75 – 1.28; p = .89), with no heterogeneity in the neutral effect of immediate CEA on dementia related to age, carotid stenosis, blood pressure, diabetes, country of residence, or medical treatments at trial entry (heterogeneity values p > .05). Conclusion CEA was not associated with significant reductions in the long term hazards of dementia, but the CI did not exclude a proportional benefit or hazard of about 25%.
FIGO position statement on postpartum intrauterine devices (PPIUD)
AbstractPostpartum contraception is a critical intervention to address the unmet need for family planning, which affects over 218 million women globally, predominantly in low‐ and middle‐income countries (LMICs). Immediate postpartum family planning (PPFP) offers a unique opportunity to provide contraception during a crucial health‐seeking encounter, particularly given the rise in institutional births worldwide. Short inter‐pregnancy intervals are associated with increased maternal and neonatal morbidity and mortality, making timely postpartum contraception essential. The postpartum intrauterine device (PPIUD), a long‐acting reversible contraceptive (LARC), is a highly cost‐effective, non‐hormonal method with a low failure rate. It can be safely inserted immediately after vaginal or cesarean delivery, offering women a reliable and accessible option. However, successful implementation of PPIUD services requires overcoming barriers such as fragmented health services, provider bias, sociocultural misconceptions, and supply chain challenges. FIGO advocates for integrating PPFP, including PPIUD, into routine maternity care and emphasizes task sharing, community engagement, and comprehensive counseling as critical strategies. By incorporating postpartum contraception into standard maternal care, particularly in LMICs, health systems can improve maternal and child health outcomes, advance Sustainable Development Goals (SDGs), and empower women to make informed reproductive choices.
Severe Dietary Energy Restriction for Compensated Cirrhosis Due to Metabolic Dysfunction-Associated Steatotic Liver Disease: A Randomised Controlled Trial.
BACKGROUND: Compensated cirrhosis due to metabolic dysfunction-associated steatotic liver disease (CC-MASLD) increases morbidity and mortality risk but has no aetiology-specific treatment. We investigated the safety and efficacy signals of severe energy restriction. METHODS: In this randomised controlled trial, adults with CC-MASLD and obesity in a tertiary hepatology centre were randomised 2:1 to receive one-to-one remote dietetic support with a low-energy (880 kcal/day, 80 g protein/day) total diet replacement programme for 12 weeks and stepped food reintroduction for another 12 weeks or standard of care (SoC). Given the exploratory nature of the study, three pre-defined co-primary outcomes were used to assess safety and efficacy signals: severe increases in liver biochemistry, changes in iron-corrected T1, and changes in liver stiffness on magnetic resonance elastography. Changes in liver steatosis on magnetic resonance imaging, physical performance based on the physical performance test and liver frailty index, and changes in fat-free mass were secondary outcomes. Magnetic resonance outcomes were assessed blind. RESULTS: Between February 2022 and September 2023, 17 participants (36% female, median [IQR] age 58 [7.5] years) were randomised to SoC (n = 6) or intervention (n = 11). The trial stopped earlier than planned due to slow recruitment rate. 91% and 94% of participants completed the intervention and attended the 24-week follow-up, respectively. Compared with the SoC, the between-group weight change in the intervention was -11.9 kg (95% CI: -17.2, -6.6, p
Editor's Choice - Effect of Carotid Endarterectomy on 20 Year Incidence of Recorded Dementia: A Randomised Trial.
OBJECTIVE: Stroke and carotid atherosclerosis are associated with dementia. Carotid endarterectomy (CEA) reduces stroke risk, although its effect on later dementia is uncertain. Participants in the Asymptomatic Carotid Surgery Trial (ACST-1), randomly allocated to immediate vs. deferral of CEA (i.e., no intervention unless or until triggered by ipsilateral transient ischaemic attack or stroke), were followed, to study effects on dementia. METHODS: From 1993 to 2003, ACST-1 included 3 120 participants with asymptomatic tight carotid stenosis. All UK and Swedish patients (n = 1 601; 796 immediate vs. 805 deferral) were followed with trial records, national electronic health record linkage, and (UK only) by post and telephone. Cumulative incidence and competing risk analyses were used to measure the effects of risk factors and CEA on dementia risk. Intention to treat analyses yielded hazard ratios (HRs; immediate vs. deferral) of dementia. RESULTS: The median follow up was 19.4 years (interquartile range 16.9 - 21.7). Dementia was recorded in 107 immediate CEA patients and 115 allocated delayed surgery; 1 290 patients died (1 091 [538 vs. 536] before any dementia diagnosis). Dementia incidence rose with age and with female sex (men: 8.3% aged < 70 years at trial entry vs. 15.1% aged ≥ 70; women: 15.1% aged < 70 years at trial entry vs. 22.4% aged ≥ 70 years) and was higher in those with pre-existing cerebral infarction (silent or with prior symptoms; 20.2% vs. 13.6%). Dementia risk was similar in both randomised groups: 6.7% vs. 6.6% at 10 years and 14.3% vs. 15.5% at 20 years, respectively. The dementia HR was 0.98 (95% confidence interval [CI] 0.75 - 1.28; p = .89), with no heterogeneity in the neutral effect of immediate CEA on dementia related to age, carotid stenosis, blood pressure, diabetes, country of residence, or medical treatments at trial entry (heterogeneity values p > .05). CONCLUSION: CEA was not associated with significant reductions in the long term hazards of dementia, but the CI did not exclude a proportional benefit or hazard of about 25%.
Developing a Community of Scholars for Students, Residents, and Early-Career Researchers: MedEd Collaborative - A Health Professions Education Research Collaborative
Problem Students, residents, and early-career researchers (ECRs) have limited opportunities for early involvement in high-quality health professions education research (HPER). This project aimed to create a community of scholars for medical students, residents, and ECRs to increase early-career HPER collaboration. A community of scholars is a community of practice in which the common area of interest is scholarly work. This article describes how MedEd Collaborative was established as a permanent national HPER collaborative led by medical students, residents, and ECRs. Approach MedEd Collaborative was formed in September 2020, consisting of a committee of medical students, residents, and ECRs who oversee collaborators in the United Kingdom. Guidance on creating research collaboratives, developing a community of scholars, and collaborative writing was followed. The primary measurable outcome was to publish one original research article that used a collaborative research approach and incorporated theory. The community was cultivated by providing opportunities for early-career involvement in collaborative HPER projects and mentorship and training in HPER methods. Outcomes MedEd Collaborative has developed a community of scholars that increased opportunities for early involvement in high-quality HPER for 82 medical students, residents, and ECRs. The collaborative structure facilitates increasing legitimate peripheral participation in HPER: acting as a collaborator provides basic research skills development, and learners can gradually assume more responsibility as their skills progress by acting on project committees. MedEd Collaborative's research outputs progressed HPER by using conceptual frameworks to explain student volunteering decisions and experiences during the COVID-19 pandemic, and the scholarly output included 15 publications (of which 4 were original research), 19 presentations, 4 prizes, and 2 grants. Next Steps To ensure the sustainability of the collaborative, the collaborative will refine its identity in the HPER landscape, expand the model with other methods and to other professions, strengthen its collaborative structure, and establish formal partnerships.