Standard risk prediction models in cardiac surgery (such as EuroSCORE II or STS score) are designed to analyze solely the risk of short-term postoperative mortality. The postoperative morbidity, the ability to rehabilitate or the mid-term survival are not addressed by these means. Recently there have been some reports that addition of physical performance testing to the standard prediction models may provide prognostic value. There is a wide scale of various physical performance and frailty tests that could be used for this purpose, but they have not been confronted with each other yet. Moreover, the postoperative physical rehabilitation has not been objectively assessed in larger scale despite the significant improvement in technology. The hypothesisis of the study is that the preoperative outcomes of physical performance and frailty testing are able to predict the patient's reconvalescence after cardiac surgery in the short- and mid-term postoperatively. The aim is to analyze a set of tests with regard to their ability to predict postoperative reconvalescence, including the objective activity assessment (using Actigraph wGT3X-BT activity tracking device). Secondarily, the investigators aim to follow the patients up to 1 year postoperatively in terms of evaluating their mid-term outcomes.
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Standard postoperative measures of patient reconvalescence
Timeframe: Usually up to 30 days postoperatively
Objective postoperative patient activity tracking
Timeframe: First 4 postoperative days in the standard ward