In one aspect, the present invention is directed to an apparatus and method for treating congestive heart failure that restores kidney renal functions by artificial perfusion of at least one kidney. In one aspect, a catheter inserted into the aorta of the patient has an outlet port that supplies the patient's blood obtained from a patient's aorta into an adjoining renal artery of the patient to perfuse the kidney. The catheter comprises a rotor housed inside a portion of the catheter to supply the blood to the kidney at a desired pressure. The restoration of kidney function assists the heart by removing excess fluid, urine and toxin from the patient, and by normalizing the patient's renin-angiotensin system and other neurohormonal substances.