JOHN DAVIES; CHRISTOPHER SPRY
To the editor: After reports of the successful treatment of the hypereosinophilic syndrome with leukapheresis (1, 2) we did plasma exchange, leukapheresis, or both on four patients with the hypereosinophilic syndrome. A comparison was made between the fall in eosinophil counts obtained by leukapheresis with those found after plasma exchange.
We were surprised to find that on each occasion plasma exchange produced a larger percent fall in three patients (90%, 83%, and 35%) in the eosinophil count than did leukapheresis in the same three patients (38%, 27%, and 35%). Similar results were obtained after daily plasma exchanges on two other
DAVIES J, SPRY C. Plasma Exchange or Leukapheresis in the Hypereosinophilic Syndrome. Ann Intern Med. ;96:791. doi: 10.7326/0003-4819-96-6-791_1
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Published: Ann Intern Med. 1982;96(6_part_1):791.
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