2.05 pancytopenia Flashcards
phenotype of fanconi’s anaemia?
short
skin pigment abnormal - cafe au lait
radial ray abnormal- fingers missing etc.
hypogenitalia
endocrinopathies
GI defects
cardiovascular/renal/haematological defects
unable to correct interstrand cross-links
inherited haematological abnormalities
fanconi’s anaemia
sequence of blood abnormalities in fanconi’s anaemia
macrocytosis
thrombocytopenia
neutropenia
risk of aplasia (bone marrow failure) in fanconi’s anaemia by age 20
84%
leukaemia risk in fanconi’s anaemia by age 40
52%
aplastic anaemia
autoimmune attack against haemopoietic stem cell
increased apoptosis of progenitor and mature cells
myelodysplastic syndromes
drug causes of aplasia
chemotherapy
chloramphenicol
alcohol
deficiencies that cause aplasia
b12
folate
causes of hyperspleenism
portal hypertension
congestive heart failure
rheumatoid arthritis- felty’s
myelofibrosis
hypocellular bone marrow
aplastic anaemia
hypercellular bone marrow + pancytopenia
myelodysplastic syndromes
b12/folate deficiency- maturation failure
hyperspleenism
Treatment of neutropaenia + sepsis + sews
piperacillin/tazobactam
no routine gentamicin
neutropaenia + severe sepsis/septic shock or
sews greater or equal to 6, acute leukaemia, or allogenic transplant
pip/tazo
gentamicin