Impact of cardiac responses on survival in stage IIIb AL amyloidosis. Kaplan-Meier survival curves according to categorical cardiac responses at 3-month landmark (A), 6-month landmark: ≥VGPR, 85 months; PR, 55 months; NR, 15 months (B-C), and best response: CR, not reached; VGPR, 74 months; PR, 24 months; NR, 5 months (D).