Does anyone have experience with Lumber Fusion with Heart Failure ?

I am scheduled for L2-L5 Fusion 6/9 (L3-L4 already Fused). Due to Cardiac Sarcoidosis I have developed Heart Failure (LVEF of 36%) . I am at a stable point right now, meaning I have not had any tachycardia or afib for months. I am also on Eliquis. I am very concerned about the surgery and recovery. Has anyone experienced fusion having heart issues ? I understand I will be watched over cardiacwise when in surgery....the rest of the way is really concerning. Thank You !