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. 2017 Apr 13;4(1):e000588. doi: 10.1136/openhrt-2017-000588

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© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

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Change in symptoms in operated and unoperated patients 1 year following evaluation of surgical AVR. Pie charts display change from baseline to follow-up in NYHA and CCS class for operated and unoperated patients who had data on both time points. Improvement or worsening is defined as at least one class change. AVR, aortic valve replacement; CCS, Canadian Cardiovascular Society; NYHA, New York Heart Association.