-aemias Flashcards

1
Q

AML risk factors
How common is AML
What is the defining feature

A

previous chemo / radiotherapy
second most common leukaemia
20% or more blasts in the bone marrow or blood

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2
Q

AML presenting symptoms

A

cytopaenias (symptomatic)
Bone pain
Hyperviscosity
Tumour lysis

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3
Q

What are the key AML subtypes

A

APML
AML with NPM1 mutation
AML with FLT3 mutation

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4
Q

AML - favourable genetics

A

APML (translocation 15:17)
Mutated NPM1

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5
Q

AML - unfavourable genetics

A

17p abberation, mutated TP53, complex karyotype

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6
Q

What is the philadelphia chromosome?
What is it associated with?

A

translocation between Ch 9 and 21
Associated with CML

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7
Q

APML survival

A

95%

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8
Q

What does a blood film show for APML

A

Auer rods and bi-lobed nuclei

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9
Q

What is the common treatment for favourable risk AML?

A

Fit and <70;
induction with 7+3
consolidation with HiDAC for 2-4 cycles

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10
Q

What is the common treatment for intermediate risk AML?

A

fit and <70;
induction with 7+3, to induce remission (bone marrow blasts <5%)
consolidation with HiDAC (then transplant)

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11
Q

What is “7+3”?

A

7 days of cytarabine and 3 days of daunorubicin / idarubicin
given as an inpatient

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12
Q

What is HiDAC?

A

high dose cytarabine

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13
Q

What is the gene fusion product in APML?

A

PML-RARA

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14
Q

What is the treatment for APML?

A

ATRA + Arsenic
associated with fever, oedema, pulmonary infiltrates, serositis
ATRA causes elevated Intracranial pressure

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15
Q

What drug targets FLT3?

A

Midostaurin

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16
Q

What adverse event is venetoclax associated with?>

A

tumour lysis syndrome

17
Q

What is Gemtuzumab ozogamzin?

A

MAB-cytotoxic conjugate, binds CD33+

18
Q

Diagnosis of MDS

A

Bone marrow suggestive of MDS plus at least one cytopaenia

19
Q

Treatment of MDS

A

Depends on severity
Use azacitidine (hypomethylating agent)

20
Q

Azacitidine adverse effects

A

usually well tolerated, minimal nausea, infection in 20%

21
Q

CML common mutation / gene product

A

Philadelphia chromosome (t(9:22)) fusion gene is BCR:ABL1

22
Q

Phases of CML

A

Chronic phase (neutrophilia and myelocytosis in peripheral blood)
Accelerated phase (increased blasts in BM, increasing splenomegaly)
Blast phase (acute leukaemia)

23
Q

CML diagnosis

A

PCR on peripheral blood to confirm translocation
Bone marrow biopsy to assess phase

24
Q

CML treatment

A

TKI
1st gen - imatinib
2nd gen - dasatinib
3rd gen - ponatinib
side effects; rash, GIT

25
Q

Types of MPN

A

Essential thrombocythaemia
Polcythaemia vera
Primary myelofibrosis

26
Q

Diagnosis of essential thrombocythaemia

A

plt >450
BMBx; megakaryocyte proliferation
presence of JAK2, CALR or MPL

27
Q

Treatment of ET

A

depends on risk
higher risk if evidence of thrombosis or JAK mutation or cardiovascular disease
low risk give aspirin OD or BD
intermediate risk give aspirin plus cytoreduction
high risk give cytoreduction and anticoagulant / aspirin

28
Q

Polycythaemia vera symptoms

A

fatigue, aquagenic pruritis, headache, splenomegaly, thrombosis

29
Q

Polycythaemia vera diagnosis

A

Hb>165 (160 in Females)
Hypercellularity in bone marrow
Presence of JAK2 mutation

30
Q

Polycythaemia vera treatment

A

venesect all patient to hematocrit of <0.45 and daily aspirin
Low risk give BD aspirin
High risk give BD aspirin or anticoagulation

31
Q

Primary myelofibrosis features

A

megakaryocyte proliferation and bone marrow fibrosis with extramedullary haematopoiesis
Hepatosplenomegaly common, symptomatic anaemia
Sometimes gout or renal stones associated with hyperuricaemia

32
Q

Myelofibrosis diagnosis

A

Megakaryocytes and fibrosis
presence of JAK2, CALR, MPL plus minor criteria