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DEcreased Cognitive functiON, NEurovascular CorrelaTes and myocardial changes in women with a history of pre-eclampsia (DECONNECT): research protocol for a cross-sectional pilot study

Por: Brandt · Y. · Alers · R.-J. · Canjels · L. P. W. · Jorissen · L. M. · Jansen · G. · Janssen · E. B. N. J. · van Kuijk · S. M. · Went · T. M. · Koehn · D. · Gerretsen · S. C. · Jansen · J. F. · Backes · W. H. · Hurks · P. P. M. · van de Ven · V. · Kooi · M. E. · Spaanderman · M. E. A.
Introduction

Pre-eclampsia is a hypertensive disorder affecting up to 8% of pregnancies. After pre-eclampsia, women are at increased risk of cognitive problems, and cerebrovascular and cardiovascular disorders. These sequelae could result from microvascular dysfunction persisting after pre-eclampsia. This study will explore differences in cerebral and myocardial microvascular function between women after pre-eclampsia and women after normotensive gestation. We hypothesise that pre-eclampsia alters cerebral and myocardial microvascular functions, which in turn are related to diminished cognitive and cardiac performance.

Methods and analysis

The cross-sectional ‘DEcreased Cognitive functiON, NEurovascular CorrelaTes and myocardial changes in women with a history of pre-eclampsia’ (DECONNECT) pilot study includes women after pre-eclampsia and controls after normotensive pregnancy between 6 months and 20 years after gestation. We recruit women from the Queen of Hearts study, a study investigating subclinical heart failure after pre-eclampsia. Neuropsychological tests are employed to assess different cognitive domains, including attention, processing speed, and cognitive control. Cerebral images are recorded using a 7 Tesla MRI to assess blood–brain barrier integrity, perfusion, blood flow, functional and structural networks, and anatomical dimensions. Cardiac images are recorded using a 3 Tesla MRI to assess cardiac perfusion, strain, dimensions, mass, and degree of fibrosis. We assess the effect of a history of pre-eclampsia using multivariable regression analyses.

Ethics and dissemination

This study is approved by the Ethics Committee of Maastricht University Medical Centre (METC azM/UM, NL47252.068.14). Knowledge dissemination will include scientific publications, presentations at conferences and public forums, and social media.

Trial registration number

NCT02347540.

Portosystemic shunting prevents hepatocellular carcinoma in non-alcoholic fatty liver disease mouse models

by Andrea Peloso, Stéphanie Lacotte, Quentin Gex, Florence Slits, Beat Moeckli, Graziano Oldani, Matthieu Tihy, Aurélie Hautefort, Brenda Kwak, Laura Rubbia-Brandt, Christian Toso

Background and aims

Non-alcoholic fatty liver disease (NAFLD) is one of the leading cause of hepatocellular carcinoma (HCC). This association is supported by the translocation of bacteria products into the portal system, which acts on the liver through the gut-liver axis. We hypothesize that portosystemic shunting can disrupt this relationship, and prevent NAFLD-associated HCC.

Methods

HCC carcinogenesis was tested in C57BL/6 mice fed a high-fat high-sucrose diet (HFD) and injected with diethylnitrosamine (DEN) at two weeks of age, and in double transgenic LAP-tTA and TRE-MYC (LAP-Myc) mice fed a methionine-choline-deficient diet. Portosystemic shunts were established by transposing the spleen to the sub-cutaneous tissue at eight weeks of age.

Results

Spleen transposition led to a consistent deviation of part of the portal flow and a significant decrease in portal pressure. It was associated with a decrease in the number of HCC in both models. This effect was supported by the presence of less severe liver steatosis after 40 weeks, and lower expression levels of liver fatty acid synthase. Also, shunted mice exhibited lower liver oxygen levels, a key factor in preventing HCC as confirmed by the development of less HCCs in mice with hepatic artery ligation.

Conclusions

The present data show that portosystemic shunting prevents NAFLD-associated HCC, utilizing two independent mouse models. This effect is supported by the development of less steatosis, and a restored liver oxygen level. Portal pressure modulation and shunting deserve further exploration as potential prevention/treatment options for NAFLD and HCC.

Characteristics and effectiveness of mentoring programmes for specialized and advanced practice nurses: A systematic review

Abstract

Aims

(1) To identify, evaluate and summarize evidence about the objectives and characteristics of mentoring programmes for specialized nurses (SNs) or nurse navigators (NNs) and advanced practice nurses (APNs) and (2) to identify the effectiveness of these programmes.

Design

A systematic review based on PRISMA guidelines.

Data Sources

From November 2022 until 7 December 2022, four databases were searched: PubMed, EMBASE, CINAHL and The Cochrane Library.

Review Methods

Study selection was performed independently by two researchers. Disagreements were discussed until consensus was reached. Data extraction was undertaken for included studies. Data synthesis was conducted using narrative analysis. Quality appraisal was performed using the Critical Appraisal Skill Programme (CASP) and Mixed Methods Appraisal Tool (MMAT).

Results

Twelve articles were included, all of which focused on mentoring programmes for APNs. Different forms of mentorship (e.g. (in)formal mentorship, work shadowing, workshops) were reported. Studies reported positive outcomes on job retention (n = 5), job satisfaction (n = 6), skills improvement (n = 7), satisfaction with the programme (n = 7) and confidence improvement (n = 4) among participants of mentoring programmes.

Conclusion

There is a lack of uniformity and consistency in various elements of mentoring programmes. Further research is needed to develop mentoring programmes for both APNs and SNs/NNs in a systematic and theoretically underpinned manner. It is necessary to establish a thorough evaluation methodology, preferably using a mixed methods design that includes both a qualitative process evaluation and a comprehensive outcome evaluation using validated questionnaires, taking into account the NN/APN, the interprofessional team and organizational level.

Impact

The synthesis of evidence may be useful to organizations developing and implementing mentoring programmes for both SN/NN and APN. The development of a mentoring programme for nursing experts should be considered a complex intervention that requires theoretical frameworks and contextual considerations.

No Patient or Public Contribution

Not applicable, as no patients or public were involved.

Eficacia del tratamiento para las personas agitadas en situaciones de emergencia en comparación con los servicios comunitarios: revisión sistemática

Objetivo: Conocer la eficacia del tratamiento de personas con conducta hetero agresiva en los servicios de urgencias en comparación con los servicios de salud comunitarios. Método: Revisión sistemática de estudios en bases de datos: LILACS, Psychinfo, Scopus, Web de Ciencia, PUBMED y literatura gris en Google Scholar y en la lista de referencias. La búsqueda se realizó en junio de 2016. Dos mil ciento sesenta estudios fueron encontrados y seis de estos estudios fueron seleccionados para su análisis después de la aplicación de los criterios de exclusión. Resultados: El acercamiento a individuos con comportamiento agitado, agresivo o violento ocurre con mayor frecuencia en servicios de emergencia general y psiquiátrica con intervención médica. Los medicamentos utilizados para controlar la agitación y la sedación fueron benzodiazepina (midazolam, lorazepam), antihistamínico (prometazina), antipsicóticos típicos (haloperidol y droperidol) y antipsicóticos atípicos (olanzapina, ziprasidona, risperidona y quetiapina). Conclusión: Todos los fármacos evaluados promueven la sedación, pero esta revisión muestra ventajas en el uso de la combinación de haloperidol más prometazina.

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