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Comparison of automated erythrocytapheresis versus manual exchange transfusion to treat cerebral macrovasculopathy in sickle cell anemia
Author(s) -
Koehl Bérengère,
Sommet Julie,
Holvoet Laurent,
Abdoul Hendy,
Boizeau Priscilla,
Ithier Ghislaine,
Missud Florence,
Couque Nathalie,
Verlhac Suzanne,
Voultoury Pauline,
Sellami Fatiha,
Baruchel André,
Benkerrou Malika
Publication year - 2016
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1111/trf.13548
Subject(s) - medicine , interquartile range , exchange transfusion , anemia , sickle cell anemia , stroke (engine) , blood transfusion , transcranial doppler , pediatrics , physical therapy , mechanical engineering , disease , engineering
BACKGROUND Chronic exchange transfusion is effective for primary and secondary prevention of stroke in children with sickle cell anemia (SCA). Erythrocytapheresis is recognized to be the most efficient approach; however, it is not widely implemented and is not suitable for all patients. The aim of our study was to compare automated exchange transfusion (AET) with our manual method of exchange transfusion and, in particular, to evaluate the efficacy, safety, and cost of our manual method. STUDY DESIGN AND METHODS Thirty‐nine SCA children with stroke and/or abnormal findings on transcranial Doppler were included in the study. We retrospectively analyzed 1353 exchange sessions, including 333 sessions of AET and 1020 sessions of manual exchange transfusion (MET). RESULTS Both methods were well tolerated. The median decrease in hemoglobin (Hb)S per session was 21.5% with AET and 18.8% with our manual method ( p < 0.0001) with no major increase in red blood cell consumption. Iron overload was well controlled, even with the manual method, with a median (interquartile range) ferritin level of 312 (152‐994) µg/L after 24 months of transfusions. The main differences in annual cost relate to equipment costs, which were 74 times higher with the automated method. CONCLUSION Our study shows that continuous MET has comparable efficacy to the automated method in terms of stroke prevention, decrease in HbS, and iron overload prevention. It is feasible in all hospital settings and is often combined with AET successively over time.