Scientific corner

Efficacy of cytapheresis for induction therapy and extra-intestinal skin manifestations of ulcerative colitis

Tomoyoshi Shibuya,Osamu Nomura,Kei Nomura,Mayuko Haraikawa,Keiichi Haga,Dai Ishikawa,Taro Osada,Ken Yamaji,Shigaku Ikeda,Akihito Nagahara

Ther Apher Dial 2022 Mar 5. doi: 10.1111/1744-9987.13823. Online ahead of print.

Introduction: In recent years, the prevalence of inflammatory bowel diseases has been increasing in Japan due to the westernization of lifestyles. Many patients have been reported to have extra-intestinal manifestations (EIMs) at least once. Skin lesions occur with a high degree of frequency among EIMs, with erythema nodosum (EN) and pyoderma gangrenosum (PG) the main complications. Cytapheresis is again attracting attention as a treatment with few side effects. Methods: We investigated the therapeutic effect of cytapheresis on ulcerative colitis (UC) and cutaneous EIMs. Between 2008 and 2021, 240 patients with active UC had induction therapy by cytapheresis at our hospital. Results: Remission and response rates were 50.0% and 67.5%, respectively. Apheresis was performed on seven patients with PG and five patients with EN with a good response. Serious adverse events were not observed. Conclusion: This retrospective assessment of efficacy showed that EN and PG responded favorably to cytapheresis.

https://pubmed.ncbi.nlm.nih.gov/35247233/

Scientific corner

Granulocyte apheresis for pouchitis with arthritis and pyoderma gangrenosum after restorative proctocolectomy for ulcerative colitis: a case report

Ritsuko Yanaru-FujisawaTakayuki MatsumotoShotaro NakamuraShuji KochiMitsuo IidaFutoshi KohdaMinako HirahashiTakashi YaoRyuichi Case Reports Inflamm Bowel Dis. 2005 Aug;11(8):780 DOI: 10.1097/01.mib.0000172558.39767.b7

Our case and the case of Kanekura et al8 suggest that circulating leukocytes may play an important role in the pathogenesis of PG and that GCAP in combination with corticosteroids may be a promising strategy for intractable PG. Furthermore, as has been the case for active UC, GCAP may be a choice for severe pouchitis. An accumulation of data with respect to the effect of GCAP on pouchitis seems to be warranted.

https://pubmed.ncbi.nlm.nih.gov/16043996/

https://academic.oup.com/ibdjournal/article/11/8/780/4685895

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