B4DOX = Before patient receives DOXorubicin or prior to administration of 100 mg/m2 of doxorubicin.
PTDOX = PaTient has already received >100 mg/m2 DOXorubicin.
EF-EVAL = Refer patient for echocardiogram, radionuclide angiography, or other imaging test for left ventricular Ejection Fraction EVALuation.
LVEF-OK = LVEF normal or if follow-up study shows decline in less than 10% from baseline study and absolute EF ≥30%.
LVEF<30 = LVEF <30%.
DECL-10 = LVEF DECLines by 10% from baseline study.
DC-DOX = DisContinue DOXorubicin.
CON-DOX = CONtinue DOXorubicin.
FU-#1 = Follow-Up study #1 with EF-EVAL at 300 mg/m2. Repeat EF-EVAL at 400 mg/m2 if patient has history of cardiomyopathy, radiation exposure, and abnormal electrocardiographic results, or is on cyclophosphamide therapy.
FU-#2 = Follow-Up study #2 with EF-EVAL at 450 mg/m2.
FU-#3 = Follow-Up study #3 with EF-EVAL prior to each dose after 450 mg/m2.