Multiple Myeloma Flashcards
Diagnostic criteria for MGUS
M protein <3 g/dl
Clonal plasma cells in BM <10%
No SLiM-CRAB
Diagnostic criteria for Smoldering myeloma
M protein >3 g/dL or 500 mg/24 hrs in urine
BM plasma cells 10-60%
No SLiM-CRAB
Diagnostic criteria for multiple myeloma
M protein >3 g/dL or 500 mg/24 hrs in urine
BM plasma cells 10-60%
1+ SLiM CRAB feature
Which subtype of MGUS has highest risk of progression?
IgM
Monitoring of low-risk MGUS
Repeat SPEP and CBC, Cr in 6 months, then once every 2-3 years if stable
Monitoring of intermediate to high risk MGUS
Repeat labs in 6 months, then annually
Which patients newly diagnosed with MGUS should get a bone marrow biopsy
Everyone who is not low risk:
M protein >1.5 g/dL
FLC ratio >8
Non IgG type
3 risk factors for progression in SMM? How many do you need to be named high risk?
“20/2/20 model”
M protein >2
sFLC >20
BM PCs >20%
High risk is 2-3
Management of low risk SMM?
active surveillance
management of intermediate risk SMM?
active surveillance
Management of high risk SMM (2)
Len alone
Len + Dex
What is the R-ISS for MM?
Stage 1: Albumin >3.5 AND B2M <3.5
Normal LDH
No t(4;14), t(14;16), or del17p
Stage 3:
B2M >5.5 AND
high LDH OR
t(4;14), t(14;16), or del17p
Who should get VTE prophylaxis with ASA only?
1 or fewer VTE risk factors:
Obesity, previous VTE, CVC, pacemaker, surgery, assocaited cardiac, renal, diabetes, infection, or immobilization)
Definition of complete response?
No M protein
<5% BM PCs
Definition of progressive disease
M protein >25% increase
>10% BM PCs