The editorial section discusses the relationship between catheter-based therapies, particularly leaflet-based therapy, and highlights a preclinical study on increasing mitral leaflet coaptation length after mitral valve repair. It also references studies on the effect of general anesthesia on mitral regurgitation, the evaluation of ischemic mitral regurgitation using transesophageal echocardiography, and guidelines for managing valvular heart disease. The corrigendum addresses errors in Table 29, Table 32, and section 7.5.2.4 of the 2018 ESC/ESH Guidelines for the management of arterial hypertension, which have been corrected online.The editorial section discusses the relationship between catheter-based therapies, particularly leaflet-based therapy, and highlights a preclinical study on increasing mitral leaflet coaptation length after mitral valve repair. It also references studies on the effect of general anesthesia on mitral regurgitation, the evaluation of ischemic mitral regurgitation using transesophageal echocardiography, and guidelines for managing valvular heart disease. The corrigendum addresses errors in Table 29, Table 32, and section 7.5.2.4 of the 2018 ESC/ESH Guidelines for the management of arterial hypertension, which have been corrected online.