The Efficacy and Safety of Dapagliflozin in Improving Heart Failure in Dialysis Patients

Inclusion Criteria: * 1.Age between 20 and 70 years old; 2.Maintenance dialysis for longer than 3 months; 3.Diagnosis with chronic heart failure, Left ventricular ejection fraction (LVEF)≤40% or NT-proBNP\>12000pg/ml; 4.The patient signs an informed consent form. Exclusion Criteria: * 1.Patients with liver function impairment; 2.Patients with severe hypoglycemia/hypotension/ketoacidosis; 3.Patients with active pyelonephritis or symptomatic urinary tract infection; 4.Dapagliflozin allergies or severe adverse reactions; 5.Patients suffering from other severe diseases; 6.Patients participating in other clinical trials; 7.Pregnant or lactating women; 8.Failure to sign a written informed consent form; 9.Unable or unwilling to comply with the experimental protocol approved by the researcher