FANCB and systolic heart failure: Digiovanni-Kinsley et al. described a case of a 62-year-old male patient taking 125 μg of digoxin BID with a blood digoxin level of 2.65 ng/mL who was treated similarly to our case with digoxin immune Fab,13 while Bridwell et al. reported a case of a 75-year-old woman with systolic heart failure with a ventricular pacemaker in situ.