“…It's caused primarily by coronary or ischemic heart disease and it is characterized by a specific echocardiographic criterion that is the reduction of ejection fraction lower than 30% [5,6]. Less frequent causes, but not less important, are arterial hypertension, valve diseases, and cardiomyopathies (hypertrophic, dilated and restrictive forms) [2][3][4][5][6][7]. Diastolic dysfunction is an abnormality in the left ventricular (LV) myocardial relaxation and/or compliance thanks to which blood flows into the left ventricle during diastole [8][9][10][11][12][13][14][15]; it's seen in one third of patients, it is commonly caused by hypertension, hypertrophic or infiltrative diseases and possibly diabetes.…”