From Patient Reported Outcome Measure (PROM) to Environment Related Outcome Measure (EROM): Towards "Green Breast Surgery".

Climate change is a global issue that has had significant impacts on public health and healthcare policy worldwide. The direct impact of climate change on healthcare has been associated with extreme weather events, resulting in a higher demand for disaster management resources and reduced healthcare access. Moreover, the increase of zoonotic spillover effects has increased the risk of transmission of different diseases, including COVID-19. The healthcare industry alone is responsible for 4.4% of greenhouse gas global emissions. The surgical theatre is a resource-intense healthcare activity and a major carbon emitter, thus surgical processes require rethinking. This article proposes the introduction of environmental-related outcome measures in clinical trials, which will associate highest clinical standards to a reduced impact of care on climate change. Breast cancer care may represent a model disease for the implementation of evidence-based protocols, such as Green Breast Surgery, aiming to optimize the carbon footprint of care without affecting oncological and non-oncological outcomes. Physicians and healthcare workers worldwide should be aware of the importance of addressing environmental issues in healthcare policy, implementing programs to reduce their carbon footprint, and contributing to a more sustainable future.