{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,19]],"date-time":"2025-05-19T07:46:59Z","timestamp":1747640819988},"reference-count":31,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2011,12,2]],"date-time":"2011-12-02T00:00:00Z","timestamp":1322784000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clin Physio Funct Imaging"],"published-print":{"date-parts":[[2012,5]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Exercise testing is underutilized in patients with valve disease. We have previously found a low physical work capacity in patients with aortic regurgitation 6\u2003months after aortic valve replacement (AVR). The aim of this study was to evaluate aerobic capacity in patients 4\u2003years after AVR, to study how their peak oxygen uptake (peakVO<jats:sub>2<\/jats:sub>) had changed postoperatively over a longer period of time. Twenty\u2010one patients (all men, 52\u2003\u00b1\u200313\u2003years) who had previously undergone cardiopulmonary exercise testing (CPET) pre\u2010 and 6\u2003months postoperatively underwent maximal exercise testing 49\u2003\u00b1\u200315\u2003months postoperatively using an electrically braked bicycle ergometer. Breathing gases were analysed and the patients\u2019 physical fitness levels categorized according to \u00c5strand\u2019s and Wasserman\u2019s classifications. Mean peakVO<jats:sub>2<\/jats:sub> was 22\u00b78\u2003\u00b1\u20035\u00b71\u2003ml\u2003\u00d7\u2003kg<jats:sup>\u22121<\/jats:sup>\u2003\u00d7\u2003min<jats:sup>\u22121<\/jats:sup> at the 49\u2010month follow\u2010up, which was lower than at the 6\u2010month follow\u2010up (25\u00b76\u2003\u00b1\u20035\u00b78\u2003ml\u2003\u00d7\u2003kg<jats:sup>\u22121<\/jats:sup>\u2003\u00d7\u2003min<jats:sup>\u22121<\/jats:sup>, <jats:italic>P<\/jats:italic>\u2003=\u20030\u00b7001). All but one patient presented with a physical fitness level below average using \u00c5strand\u2019s classification, while 13 patients had a low physical capacity according to Wasserman\u2019s classification. A significant decrease in peakVO<jats:sub>2<\/jats:sub> was observed from six to 49\u2003months postoperatively, and the decrease was larger than expected from the increased age of the patients. CPET could be helpful in timing aortic valve surgery and for the evaluation of need of physical activity as part of a rehabilitation programme.<\/jats:p>","DOI":"10.1111\/j.1475-097x.2011.01072.x","type":"journal-article","created":{"date-parts":[[2011,12,3]],"date-time":"2011-12-03T11:36:16Z","timestamp":1322912176000},"page":"167-171","source":"Crossref","is-referenced-by-count":4,"title":["Decreased aerobic capacity 4\u2003years after aortic valve replacement in male patients operated upon for chronic aortic 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