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High Alt Med Biol. 2018 Mar;19(1):4-6. doi: 10.1089/ham.2017.0164. Epub 2018 Mar 13.

The 2018 Lake Louise Acute Mountain Sickness Score.

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1 Altitude Research Center, Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine , Anschutz Medical Campus, Aurora, Colorado.
2 Department of Internal Medicine, University of Zurich , Switzerland .
3 Department of Internal Medicine, University Hospital , Heidelberg, Germany .
4 Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington , Seattle, WA.
5 Department of Kinesiology, McMaster University , Hamilton, Canada .
6 Roslin Institute, University of Edinburgh , Easter Bush, Midlothian, United Kingdom .
7 Intensive Care Unit, Royal Infirmary Edinburgh, Edinburgh, United Kingdom .


Roach, Robert C., Peter H. Hackett, Oswald Oelz, Peter Bärtsch, Andrew M. Luks, Martin J. MacInnis, J. Kenneth Baillie, and The Lake Louise AMS Score Consensus Committee. The 2018 Lake Louise Acute Mountain Sickness Score. High Alt Med Biol 19:1-4, 2018.- The Lake Louise Acute Mountain Sickness (AMS) scoring system has been a useful research tool since first published in 1991. Recent studies have shown that disturbed sleep at altitude, one of the five symptoms scored for AMS, is more likely due to altitude hypoxia per se, and is not closely related to AMS. To address this issue, and also to evaluate the Lake Louise AMS score in light of decades of experience, experts in high altitude research undertook to revise the score. We here present an international consensus statement resulting from online discussions and meetings at the International Society of Mountain Medicine World Congress in Bolzano, Italy, in May 2014 and at the International Hypoxia Symposium in Lake Louise, Canada, in February 2015. The consensus group has revised the score to eliminate disturbed sleep as a questionnaire item, and has updated instructions for use of the score.


AMS; Lake Louise; high altitude illness; history; symptom scores

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