DHF and late phase DHF requiring re-hospitalization
During the 2-year study period, freedom from late phase DHF requiring re-hospitalization was significantly lower in patients with a DHF than in those without. Past history of hospitalization due to DHF predicts cardiovascular death and re-hospitalization due to DHF. Once symptomatic heart failure occurs, the stage of heart failure and underlying structural heart diseases has already progressed.4Diuretics and inotropic agents often used for management of DHF can cause renal impairment and myocardial toxicity, and might lead to late phase DHF requiring re-hospitalization in the long term.19,20 Careful treatment, lifestyle management, and close followup of chronic heart failure will be needed in patients with DHF after ablation.