Abstract
Four patients with active, severe rheumatoid arthritis were subjected to the removal of circulating lymphocytes (lymphapheresis) for a 6-week period by use of a continuous flow cell centrifuge. Repetitive venous access was gained through forearm arteriovenous fistulae. In all patients the Ritchie-Camp articular index declined rapidly in the first week and more slowly therafter for a total mean drop of 61% below the initial value. The index continued to decline after lymphapheresis but exacerbation of disease activity developed at an average of 19 weeks. No significant untoward effects of the procedure were observed; occasional transfusions were required to compensate for the small, unavoidable erythrocyte loss.
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