Prof David Bowen from Leeds talking on MDS. QOL so important in these patients. EQ5D is used to assess this but new tools in development. Compliance with completing assessments is 85%. A motivated group! #BSH2019
Novel ways to diagnose MDS without a marrow looking at blood glucose, creatinine and other markers. Could be very powerful. Marrow considered gold standard but even then diagnosis is not clear cut #BSH2019
Change in platelet count of 25% at 6 months is prognostic. If also become transfusion dependent in that time, median survival is 2y. Work from Raphael Itzykson in Paris #BSH2019
Refining prognosis for individual patients is important. Transfusion dependence is associated with poorer survival. Transfusion also associated with poorer QOL #BSH2019
ESA works best prior to transfusion dependence but not licensed in this cohort #BSH2019
Iron chelation may be useful. TELESTO is the only RCT; Exjade vs placebo. Did not recruit well and cannot answer the question. But ferritin lower in the Exjade group and also fewer events but full paper awaited #BSH2019
Labile plasma iron is higher in MDS with sideroblasts. These patients have a lower survival rate and may benefit most from chelation #BSH2019
Retrospective analysis of chelated vs non. Chelated pts were younger and fitter. With propensity matching a strong survival advantage for chelation is shown. Not an RCT but the best data there are available #BSH2019
MDS Europe has a great resource for MDS with ELN guidelines; management guidelines will be live in a few months mds-europe.eu #BSH2019
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I had a personal request to do a tweetorial for the #haemSpRs on haemovigilance. Here goes. A #blooducation 🧵
Haemovigilance is a systematic surveillance of adverse reactions and adverse events related to transfusion’ with the aim of improving transfusion safety. transfusionguidelines.org/transfusion-ha…
We are very lucky in the UK to have @SHOTHV1, one of the first in the world to collate adverse events relating to transfusion - since the 1990s.
This morning I met with the chair and vice chair of the Midlands Regional Transfusion Committee, the Midlands Patient Blood Management Practitioner and the Customer Services Manager. What are their roles and what does the RTC do?
A #blooducation 🧵
RTCs serve to bring together Hospital Transfusion Committees to discuss best practice, implement new guidance and provide educational resources and events. They are run by clinicians and scientists working in hospitals, supported by @NHSBT.
Teaching our incoming haematology doctors today about transfusion in haematology patients. So who needs irradiated blood and why? A #blooducation🧵
All blood in the UK is leucocyte reduced (except granulocytes, but that’s another story). Despite this, a unit of red cells or platelets can have around a million residual white cells, mostly lymphocytes.
Every doctor starting in a new trust does transfusion training as part of their mandatory training. But why?
50ml ABO incompatible blood can kill a patient. ABO antibodies are naturally occurring (“everyone” has them) and they are IgM; they can activate complement and cause *immediate* intravascular haemolysis, causing release of free haem, endothelial activation, renal failure and DIC.
In most hospitals, blood banks require 2 samples (one may be historic) before releasing group specific (non-O) blood for a patient. This is to increase the chances of identifying a *wrong blood in tube* (pt whose blood's in the tube is not the pt whose details are on the outside)
It can be difficult to know where to start with transfusion – you can’t go on a ward round to find patients. BUT you do start with lab induction and your helpful #BMSes will show you around.
Excellent session on emergency paediatric transfusion #AABB20. Cyril Jacquot talking on pre hospital transfusion and summarising the literature.
28 day mortality following haemorrhage is higher in children than adults (unpublished data and substudies from PROPPR and PROMMTT)
Observational studies of large numbers of patients but with only very small numbers of paediatric patients suggest that pre hospital blood is not associated with an excess of transfusion reactions and in some studies is thought to have improved survival.
Whole blood, group O, high titre neg, used in paediatrics in Pittsburgh appears to be safe with no haemolysin-mediated haemoylsis in non group O patients (Leeper et al JAMA Pediatrics 2018) ncbi.nlm.nih.gov/pmc/articles/P…