Journal
JOURNAL OF NEUROSURGERY-PEDIATRICS
Volume 19, Issue 2, Pages 249-253Publisher
AMER ASSOC NEUROLOGICAL SURGEONS
DOI: 10.3171/2016.8.PEDS16326
Keywords
glioblastoma; adverse event; hemicraniectomy; nivolumab; oncology
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Nivolumab is an immune checkpoint inhibitor (ICI) currently undergoing Phase III clinical trials for the treatment of glioblastoma. The authors present the case of a 10-year-old girl with glioblastoma treated with nivolumab under compassionate-use guidelines. After the first dose of nivolumab the patient developed hemiparesis, cerebral edema, and significant midline shift due to severe tumor necrosis. She was managed using intravenous dexamethasone and discharged on a dexamethasone taper. The patient's condition rapidly deteriorated after the second dose of nivolumab, demonstrating hemiplegia, seizures, and eventually unresponsiveness with a fixed and dilated left pupil. Computed tomography of her brain revealed malignant cerebral edema requiring emergency decompressive hemicraniectomy. Repeat imaging demonstrated increased size of the lesion, reflecting immune-mediated inflammation and tumor necrosis. The patient remained densely hemiplegic, but became progressively more interactive and was ultimately extubated. She resumed nivolumab several weeks later, but again her condition deteriorated with headache, vomiting, swelling at the craniectomy site, and limited right-sided facial movement following the sixth dose. MRI demonstrated severe midline shift and uncal herniation despite her craniectomy. Her condition gradually declined, and she died several days later under do not resuscitate/do not intubate orders. To the authors' knowledge, this represents the first case of malignant cerebral edema requiring operative intervention following nivolumab treatment for glioblastoma in a pediatric patient.
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