161 ADHF patients ( 78 years ; 46 % female ; ejection fraction 31 % ) were randomized to 8-hour continuous infusions of : a ) high-dose furosemide ( HDF , n = 50 , 20mg/h ) , b ) low-dose furosemide and low-dose dopamine ( LDFD , n = 56 , 5mg/h and 5 g kg ( -1 ) min ( -1 ) respectively ) , or c ) low-dose furosemide ( LDF , n = 55 , furosemide 5mg/h ) .