Hypotension is a frequent complication after induction of general anaesthesia leading to end-organ injury, for which elderly and multimorbid patients are particularly susceptible. The extent of hypotension depends, among other factors, on the dose and rate of propofol administration. Target-controlled infusion systems are widely used to administer short-acting anaesthetics such as propofol and remifentanil. Commonly, induction is started with a fixed effect-site concentration. Titration, an alternative method of induction using an incremental augmentation of propofol, leads to a reduced induction dose and rate of propofol. We hypothesise that the titration method improves haemodynamic stability compared with conventional induction.

This multicentre, expertise-based randomised controlled trial takes place at four Swiss hospitals. Patients ≥55 years of age undergoing non-cardiac surgery under general anaesthesia using propofol target-controlled infusion are randomised to either a conventional or a titrated anaesthesia induction method. Patients, statisticians and, if resources allow, outcome assessors will be blinded. The primary endpoint is the mean arterial pressure under the individual baseline mean arterial pressure (area under threshold) during the first 30 min after start of induction. Secondary endpoints include the maximum deviation from baseline mean arterial pressure, haemodynamic rescue methods, propofol consumption and neurocognitive recovery after regaining consciousness.

A total of 320 patients are required to have an 80% chance of observing superiority of titration for the area under the threshold as significant at the 5% level, assuming a true difference of 100 mm Hg*min. The area under threshold and the maximum deviation will be compared between arms using mixed linear regression models.

Ethical approval has been obtained from all responsible ethics committees (BASEC2025-01007). The results will be presented at international meetings and published in peer-reviewed journals and may contribute to a change in clinical practice for anaesthesia induction using target-controlled infusion systems with propofol.

clinicaltrials.gov (NCT06980688) and www.humanforschung-schweiz.ch (HumRes67022).

Intermittent theta-burst stimulation (iTBS) is a non-invasive brain stimulation technique that has been shown to improve cognition and mood when applied to certain brain structures and regions. Despite research demonstrating that iTBS may have clinical utility in treating cognitive and mood changes, no study has yet been conducted to explore the potential to modulate the neurophysiological changes that can underpin cognitive and mood changes during the menopause transition. Cognitive and psychological symptoms are commonly reported by females experiencing the menopause transition, and it is thought that these symptoms arise due to various neurophysiological, metabolic and endocrinological changes. Despite being common, there is a lack of treatments available for managing these symptoms and a scarcity of data regarding the mechanisms by which they occur.

The aim of this 5-week randomised, sham-controlled, double-blinded pilot clinical trial (n=72) is to assess the underlying mechanisms of action of iTBS in females in the late menopause transition and the relationship with cognition and mood. Data will be analysed using Stata^TM. Normality checks will guide the choice between parametric and non-parametric tests. Generalised linear models will assess within-subject and between-subject effects across timepoints, with additional regression analyses exploring associations between biomarkers, cognition and mood. Effect sizes, CIs and relevant test statistics will be reported, with significance set at p

The study protocol has been reviewed and ethically approved by the Western Sydney University Human Research Ethics Committee (H16200; 8 November 2024). All participants will provide written informed consent prior to enrolment. Results from this trial will be disseminated via peer-reviewed publications and conference presentations, with findings shared in accordance with open science and data transparency principles.

ACTRN12625000030471, Australian New Zealand Clinical Trials Registry

Cardiovascular disease (CVD) represents a public health burden, with high prevalence and significant morbidity and mortality. Although evidence-based interventions exist, there is a need for more individualised care. The European project Individualised care from early risk of cardiovascular disease to established heart failure (iCARE4CVD) aims to personalise CVD prevention and treatment. Participatory health research, which actively involves patients in the planning, implementation and evaluation of projects, plays a crucial role here. However, patient participation is often unsuccessful due to the lack of a representative patient sample who is involved throughout the project’s duration, has knowledge of the project and can contribute their experience.

Participative Research for Individualised Care in Cardiovascular Diseases is a non-interventional, non-randomised, multicentre mixed-methods study. The aim is to incorporate patients’ insights into several key activities within iCARE4CVD by establishing country-specific patient panels in Belgium, Germany, Ireland and the UK. The primary objective is to identify patients’ preferences, experiences, requirements and needs for better diagnosis, treatment and self-care of CVD. Therefore, 10–12 patients across the CVD spectrum, from early risk to established CVD and heart failure, will be included in each country (40–48 in total). Over 3.5 years, patient panel members are required to complete four tasks: (1) identification of meaningful Patient-Reported Outcome and Experiences Measures, (2) development of a motivational model to increase adherence, (3) feedback on CVD care processes and (4) usability testing of new digital tools developed within iCARE4CVD. These tasks comprise eight activities in the form of paper-based or digital exercises, telephone surveys, written surveys and in-person focus groups. The results will be continuously incorporated into iCARE4CVD.

This study received ethical approval by the Ethics Committee at the Faculty of Medicine of RWTH Aachen University (EK 24-172) and St. Vincent’s University Hospital (RS24-027), Research Ethics Committee. In Geel and Belfast, positive ethics approval is pending. All participants will provide written informed consent prior to enrolment in the study and participation in the first patient panel task. Results will be published in peer-reviewed journals and presented at scientific conferences.

DRKS00034899.

V2.1, 6 June 2024.