PMID- 24341880 OWN - NLM STAT- MEDLINE DCOM- 20140829 LR - 20151119 IS - 1750-7448 (Electronic) IS - 1750-743X (Linking) VI - 6 IP - 1 DP - 2014 TI - Partial recovery after severe immune reconstitution inflammatory syndrome in a multiple sclerosis patient with progressive multifocal leukoencephalopathy. PG - 23-8 LID - 10.2217/imt.13.155 [doi] AB - Progressive multifocal leukoencephalopathy (PML) is a rare and severe complication of natalizumab therapy in patients with multiple sclerosis and it may be accompanied by immune reconstitution inflammatory syndrome (IRIS). Here, we describe a case of abnormally severe IRIS, which occurred 2 months after natalizumab-associated PML in a 38-year-old woman affected by multiple sclerosis. The patient was John Cunningham virus-positive and was treated for 21 months when she developed PML. The subsequent IRIS diffusely afflicted the brain, producing edema and signs of intracranial hypertension, with a clinically severe form compromising the state of consciousness, requiring intensive care and high-dosage steroid treatment. Nevertheless, she survived and partially recovered. There is still difficulty in differentiating PML progression from IRIS onset and there is not a clear description in the literature about different clinical forms of IRIS, prognostic factors and guidelines to properly treat this complication in order to reduce the residual disability of the patient surviving this treatment complication. FAU - Calvi, Alberto AU - Calvi A AD - Neurology Unit, Department of Pathophysiology & Transplantation, 'Dino Ferrari' Center, University of Milan, Fondazione Ca Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy. FAU - De Riz, Milena AU - De Riz M FAU - Pietroboni, Anna M AU - Pietroboni AM FAU - Ghezzi, Laura AU - Ghezzi L FAU - Maltese, Virginia AU - Maltese V FAU - Arighi, Andrea AU - Arighi A FAU - Fumagalli, Giorgio G AU - Fumagalli GG FAU - Jacini, Francesca AU - Jacini F FAU - Donelli, Carlotta AU - Donelli C FAU - Comi, Giancarlo AU - Comi G FAU - Galimberti, Daniela AU - Galimberti D FAU - Scarpini, Elio AU - Scarpini E LA - eng PT - Case Reports PT - Journal Article PL - England TA - Immunotherapy JT - Immunotherapy JID - 101485158 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Immunosuppressive Agents) RN - 0 (Natalizumab) RN - 0 (Steroids) SB - IM MH - Adult MH - Antibodies, Monoclonal, Humanized/administration & dosage/adverse effects MH - Brain/*drug effects/pathology/virology MH - Disease-Free Survival MH - Female MH - Humans MH - Immune Reconstitution Inflammatory Syndrome/*drug therapy/etiology MH - Immunosuppressive Agents/administration & dosage/adverse effects MH - JC Virus/*physiology MH - Language Disorders MH - Leukoencephalopathy, Progressive Multifocal/*drug therapy/etiology MH - Multiple Sclerosis/complications/*drug therapy MH - Natalizumab MH - Plasma Exchange MH - Recovery of Function MH - Steroids/administration & dosage MH - Viral Load/drug effects EDAT- 2013/12/18 06:00 MHDA- 2014/08/30 06:00 CRDT- 2013/12/18 06:00 PHST- 2013/12/18 06:00 [entrez] PHST- 2013/12/18 06:00 [pubmed] PHST- 2014/08/30 06:00 [medline] AID - 10.2217/imt.13.155 [doi] PST - ppublish SO - Immunotherapy. 2014;6(1):23-8. doi: 10.2217/imt.13.155.