Nutritional Screening in Cardiovascular Disease

This is a nutritional screening and assessment study conducted prior to heart surgery. The nutritional status of patients will be assessed by a series of questionnaires, blood/urine biomarkers and measurement of grip strength and body composition. The investigators will then evaluate of any of the assessments are linked with clinical outcomes following surgery. For example, how long do patients stop in the intensive care unit (ICU), in hospital and how many complications patients experience. The investigators hope to use this important clinical data to understand how medical staff can identify a poor nutritional status and which patients may need nutritional support prior to surgery.