Clinical Study to Evaluate the Predictive Value of the Heart Failure Questionnaire (HF-Q) for the Occurrence of Μajor Αdverse Cardiovascular Events (MACE) in Patients With Symptomatic Heart Failure

Cardiac Heart Failure Questionnaire HF-Q) to assess the severity of the symptoms of Heart Failure. In this study, modified and translated, the "four-point" questionnaire by Severo and his associates - Heart Failure Questionnaire HF-Q, is used. The HF-Q Heart Failure Questionnaire consists of four closed questions: the first with four possible answers and the other three questions with the possibility of three simple-choice answers.