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Background: climate change is a health emergency. Central to addressing this is understanding the carbon footprint of our daily life and work, in order to reduce it effectively. The coronavirus disease of 2019 (COVID-19) pandemic has brought about rapid change to clinical practice, most notably in use of virtual clinics and personal protective equipment (PPE)., Aim: to estimate the carbon footprint of a Geriatric Medicine clinic, including the effect of virtual consultation and PPE, in order to inform design of a service that addresses both the health of our patients and our environment., Method: data from the Greenhouse Gas Protocol, NHS Carbon Footprint Plus and UK Government were used to estimate the carbon emissions per consultation. Values were calculated for virtual and face-to-face contact and applied to actual clinics both before and during the COVID-19 pandemic., Results: the carbon footprint of a face-to-face clinic consultation is 4.82 kgCO2e, most of which is patient travel, followed by staff travel and use of PPE. The footprint of a virtual consultation is 0.99 kgCO2e, most of which is staff travel, followed by data use.Using our hybrid model for a single session clinic reduced our annual carbon footprint by an estimated 200 kgCO2e, roughly equivalent to a surgical operation., Discussion: the COVID-19 pandemic has made us deliver services differently. The environmental benefits seen of moving to a partially virtual clinic highlight the importance of thinking beyond reverting to 'business as usual'-instead deliberately retaining changes, which benefit the current and future health of our community., (© The Author(s) 2022. Published by Oxford University Press on behalf of the British Geriatrics Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

Objective: To study how many elderly inpatients with previously diagnosed atrial fibrillation were not receiving anticoagulant prophylaxis, and the prevalence of additional risk factors in these patients., Methods: All new admissions to a department of medicine for the elderly were screened for atrial fibrillation. Additional risk factors were analysed in those with established atrial fibrillation who were not receiving warfarin. Previous hospital admissions, documentation of why prophylaxis was not being used and use of aspirin as an alternative agent were also examined., Results: 56 patients had previously diagnosed atrial fibrillation; 82% were not taking warfarin and 71% of these were not on aspirin either. All patients not taking warfarin had one additional risk factor for stroke and 95% had two or more. Fifty-two percent had attended hospital when atrial fibrillation was present within the previous 3 years and there was nothing documented in their records to explain why anticoagulation had not been used., Conclusions: Most elderly inpatients with established atrial fibrillation were not taking warfarin. All had additional risk factors for stroke, which increase the absolute benefit of anticoagulation.