Abstract
Thirteen adult patients aged 22-63 (median 30) years with sickle cell disease (SCD) were enrolled in a regular erythrocytapheresis (ECP) programme at a single institution between December 1998 and November 2008. The indications for enrolment were recurrent painful crises (PC), acute chest syndrome (ACS), silent cortical ischaemia, pulmonary hypertension, multi-organ crises and pregnancy. Endpoints retrospectively evaluated included the incidence of SCD-related acute events requiring hospitalization following and prior to regular ECP, the development of new and progression of pre-existing related end-organ damage, the effectiveness in reducing HbS levels acutely and prior to the next exchange and the transfusion-related complications. Sixteen acute sickle-related events occurred in five patients in 846 months of patient follow-up. In all patients with reliable data available pre-ECP, the frequency of such events was reduced following commencing regular ECP. No patient experienced stroke, multi-organ crises or developed new and/or progression of end-organ dysfunction. Regular ECP reduced HbS levels to the target of <30% immediately post-exchange. Alloimmunization rates were comparable to the literature and ECP was effective in preventing progressive iron overload. Regular ECP was demonstrated to be an effective, well-tolerated therapy for both acute and chronic complications of SCD in adults.
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