Cervical cancer (CaCx) is a leading cause of cancer-related deaths among women in South Africa, often presenting at advanced stages and requiring chemoradiotherapy. In South Africa, the burden is disproportionately high among women living with HIV, with limited access to radiotherapy further compounding treatment challenges. Despite this documented disparity, limited data exist on patients in a South African context. This protocol describes the research methodology to assess patterns of care, treatment delays, interruptions and survival outcomes in patients with advanced CaCx, addressing an urgent need for local data in low-income and middle-income countries to provide evidence-based improvements in care.

The Cervical Cancer Cohort at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH-CCC), initiated in 2023, is a mixed retrospective and prospective single-centre study investigating the characteristics, challenges and outcomes of patients with advanced CaCx. It includes women aged ≥18 years with a histopathological diagnosis of stage IB3–IVA CaCx treated at CMJAH Radiation Oncology. The retrospective component covers data from September 2018 to August 2023. Data collection is complete and the team is currently conducting quality control. The prospective component began in October 2023 and aims to enrol participants over 2 years, with follow-up for up to 3 years. The study is ongoing, and an extension for continued enrolment beyond September 2025 is being sought. Participants provide baseline data on demographics, socioeconomic status, cultural influences and healthcare access, with updates every 3 months. When necessary, the next of kin provides follow-up information. The study aims to inform strategies to improve outcomes and reduce the CaCx burden in South Africa.

Ethics approval for this study was obtained from the Human Research Ethics Committee (Medical) at the University of the Witwatersrand in Johannesburg, South Africa, with an ethical clearance certificate (MM221001 MED22-09-085). The results will be widely distributed through presentations at national and international conferences and published in peer-reviewed open-access journals, ensuring wide access to the results.

This study aimed to investigate the evolution of burnout levels and cardiovascular risk among healthcare professionals during the COVID-19 pandemic, identifying associated risk factors, with a particular focus on the impact of working hours, job roles and working units.

A longitudinal, observational study was conducted.

The study was carried out in a medical centre in central Taiwan, encompassing various healthcare settings.

A total of 1502 healthcare workers participated, including nurses, medical technicians, resident doctors, attending physicians and administrative staff. Participants were selected based on consistent completion of a 4-year questionnaire, with exclusion criteria for those who did not complete.

The primary outcome measured was burnout levels using the Chinese version of the Copenhagen Burnout Inventory. The secondary outcome was cardiovascular risk calculated from employees’ health check-up data using the Framingham Risk Score.

Cardiovascular risk showed an upward trend over 4 years. Personal and work-related burnout significantly decreased from 2019 to 2020 but increased from 2020 to 2022, aligning with changes in weekly working hours. Nurses exhibited the most pronounced fluctuations, likely due to their younger average age, shorter professional tenure and frequent direct patient contact, which may heighten vulnerability to pandemic-related stressors. In contrast, attending physicians demonstrated age as a protective factor against burnout, as greater seniority, clinical experience and professional maturity may buffer stress and foster resilience. Participants who worked in COVID-related units generally had elevated burnout levels and working hours. During the initial outbreak in 2020, employees working in COVID-related units had reduced working hours but stable burnout levels, while employees in non-COVID-related units experienced decreased burnout.

This study highlights the critical impact of long working hours on burnout among healthcare professionals during the COVID-19 pandemic. Nurses emerged as a vulnerable group, sensitive to pandemic-induced changes, while attending physicians exhibited more resilience. COVID-related units face greater stress and are less likely to benefit from reductions in patient numbers and working hours during the pandemic. Our findings underscore the urgent need for tailored interventions, such as regulated work hours, flexible scheduling and enhanced organisational and peer support, to protect healthcare workers’ well-being. These strategies can strengthen workforce resilience and sustainability in future public health crises.

Photobiomodulation (PBM) has shown promising effects in managing postoperative pain following conventional periapical surgery, although current evidence remains limited. This study aims to assess the effect of PBM on postoperative pain 24 hours after periapical surgery.

A randomised, controlled, double-blind trial will include 34 patients undergoing periapical surgery in the maxillary region, randomly assigned to an experimental group (n=17) or control group (n=17). The experimental group will receive PBM (GaAlAs diode laser, 808 nm, 100 mW, 4 J/cm², applied at five vestibular points) and placebo ibuprofen immediately and 24 hours postoperatively. The control group will receive simulated PBM and active ibuprofen. The primary outcome is postoperative pain assessed by the visual analogue scale at 24 hours. Secondary outcomes include pain at the seventh day, paracetamol intake, oedema, ecchymosis, soft tissue status and temperature at 24 hours and 7 days. Radiographic evaluation of healing will be performed at 1 and 3 months. Statistical analysis will be conducted based on data distribution, using repeated measures ANOVA (Analysis of Variance) or non-parametric equivalents for longitudinal outcomes, and appropriate tests for categorical variables. Significance will be set at p

The study was approved by the Human Research Ethics Committee of Universidad Católica del Uruguay (process no. 220914). Results will be disseminated to participants, healthcare professionals, the public and scientific communities.

NCT05935306.