Highlights
– A life cycle assessment following ISO14067 found the carbon footprint per procedure for surgical aortic valve replacement (SAVR) was approximately 620–750 kg CO2e, about twice that of either OR-based or cath-lab transcatheter aortic valve replacement (TAVR) (~280–360 kg CO2e).
– The largest single contributor across procedures was postoperative care (ICU and ward), with ICU length of stay accounting for a disproportionate share—~43% of SAVR emissions versus ~25–27% for TAVR.
