Development and Validation of the Kansas City Cardiac Dysautonomia Questionnaire (KCDysQ)

To compare in patients with cardiac dysautonomia, newly developed disease specific questionnaire to established generalized SF-36 and EQ-5d questionnaires, as there are no disease specific questionnaires for comparison. These novel and established questionnaires will then be compared among groups who have relatively stable disease or stable symptoms with patients who will be expected to have a change in symptoms and QoL.