“…Signed informed consent of the patient is mandatory. 4,7 For purposes other than daily routine (i.e., clinical trials), various specific or non-specific questionnaires such as the Specific Quality of Life and Outcome ResponseFVenous, 6 CIVIQ, 8 Medical Outcomes Study 12-item Short Form Survey (SF-12), 9 SF-36, 10 or the Venous Clinical Severity Score 11 have been proposed. These are especially useful if the focus is on quality of life or symptoms, although simple personalized VASs can be sufficient.…”