Changes of parameters during 4 days after the initiation of tolvaptan and clinical outcomes. Changes in various parameters during the 4 days: BW (A), urine volume (B), fluid balance (C), systolic BP (D), diastolic BP (E), heart rate (F), serum sodium level (G), serum creatinine level (H), and urine osmolarity (I). The incidence of WRF during the 4 days (J), mechanical intervention (BAV, TAVI, SAVR) during the index hospitalization (K), and in-hospital mortality (L) were compared between patients in the decongestion and congestion groups. BAV balloon aortic valvuloplasty, BP blood pressure, BW body weight, SAVR surgical aortic valve replacement, TAVI transcatheter aortic valve implantation, WRF worsening renal function