Keywords: CAR, chimeric antigen receptor; CRS, cytokine release syndrome; DLBCL, diffuse large B-cell lymphoma; GDMT, guideline-directed medical therapy; HF, heart failure; LVEF, left ventricular ejection fraction; PAd, pulmonary artery diastolic pressure; R-CHOP, rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone; RHC, right heart catherization; TTE, transthoracic echocardiogram; anthracycline; cardiomyopathy; heart failure; immunotherapy; lymphoma.