We are incredibly excited to announce that the first data from our long-term collaboration with the Montreal Heart Institute (led by A/Prof Daniel Gagnon) has been published in the New England Journal of Medicine! 🎉 This research, which examines #accessible and low-resource cooling strategies for #vulnerable populations during #extreme #heat events, is a significant step forward in understanding how to protect those at the highest risk during heatwaves. A special congratulations to lead author Dr Georgia Chaseling, the University of Sydney lead Prof Ollie Jay, the Montreal Heart Institute lead A/Prof Daniel Gagnon, and of course, all of the co-authors for their hard work and dedication to this project. This study demonstrates the critical importance of #cooling interventions in #preventing #heat-induced #cardiac strain, and we’re extremely proud of the team’s achievements. You can read the full publication here: https://lnkd.in/g9VqWS3u This project was funded by the National Health and Medical Research Council (NHMRC) project grant (awarded in 2018).
This is the most exciting thing to happen in a while at the Heat and Health Research Centre. Today, the first data from our long-term collaborative project with the Montreal Heart Institute examining #accessible #low-resource #cooling strategies in the most #vulnerable to #extreme #heat are published in the New England Journal of Medicine: https://lnkd.in/g9VqWS3u In a study of over 900 hours of simulated #heatwave exposures, we assessed the effects of #electric #fans, #skin #wetting, and their combination on heat-induced cardiac strain in 58 older adults (27 with coronary artery disease). In summary, in older adults, even those with heart disease we found (✅ good; = no effect; ❌ bad)... At 38˚C with high humidity (60%RH): Electric fans: ✅ Skin wetting: ✅ Fans + skin wetting: ✅ At 45˚C with low humidity (15%RH): Electric fans: ❌ ❌ Skin wetting: ✅ Fans + skin wetting: = Take home messages: 1. Clear evidence of benefit with fan use even in the most physiologically vulnerable at 38˚C with high humidity. The benefit of fans may be slightly augmented with parallel skin wetting. 2. Fans should absolutely NOT be used in very hot (45˚C) and dry conditions. Fan use TRIPLED cardiac strain compared to doing nothing. Also potential evidence of a sex effect with females experiencing more negative effects. This project was funded by the National Health and Medical Research Council (NHMRC) project grant (awarded in 2018!) and featured data collection across 2 sites: the Thermal Ergonomics Laboratory (TEL) at the University of Sydney and the Montreal Heart Institute (Lead: Dr Daniel Gagnon). We had long delays from COVID and other factors, but we finally got there! Lead author on this paper is Georgia Chaseling, who after completing her PhD in the TEL, was a post-doctoral fellow with Dan in Montreal, and now serves as co-lead of the Ageing and Chronic Diseases Research Theme at the HHRC supported by ❤️SOLVE CHD❤️ (also a recent NHMRC IG awardee! 😁) Many thanks to our other co-authors: Nicole Vargas, Lily Hospers, Hadiatou Barry, Dr Amy Elizabeth Harwood, Connor Graham, Grant Lynch, Dr Yorgi Mavros, Audrey-Ann Bartlett, Amélie Debray, Tony Capon, Craig Crandall, Maria Fiatarone Singh, Peng Bi, Anil Nigam and Malorie Chabot-Blanchet Medicine and Health - University of Sydney, Université de Montréal, Monash Sustainable Development Institute, Monash University, University of Adelaide, UT Southwestern Medical Center, NEJM Group