The need to use vasopressors decreases significantly during continuous hemofiltration, as evidenced by the decreased number of vasopressors: 120.5 ± 44.7 (before CHF), 60.2 ± 32.4 (8 hours), 21.1 ± 11.7 (24 hours), 15.2 ± 10.2 (48 hours).