Treatment of patients with acute ulcerative colitis: conventional corticosteroid therapy (MP) versus granulocytapheresis (GMA): a pilot study

G Bresci ¹, G Parisi, A Mazzoni, F Scatena, A Capria, Dig Liver Dis. 2007 May;39(5):430-4.

Granulocytapheresis represents a new and promising approach to active ulcerative colitis. In fact, even if more expensive than conventional corticosteroids, it seems slightly more effective and, above all, with side effects much less frequent and serious. Thus, granulocytapheresis cycles could be prolonged or repeated, if necessary, in more severe diseases without significant risks for the patients.

https://pubmed.ncbi.nlm.nih.gov/17379588/