A Case of Drug-Induced Hypersensitivity Syndrome Due to Lamotrigine: Demonstration of Sequential Reactivation of Herpesviruses

DOI 1 Citations 10 References
  • Sato Tatsuharu
    Department of Pediatrics, Nagasaki University Hospital
  • Kuniba Hideo
    Department of Pediatrics, Nagasaki University Hospital
  • Matsuo Mitsuhiro
    Department of Pediatrics, Nagasaki Prefectural Rehabilitation Center for Handicapped Children
  • Matsuzaka Tetsuo
    Department of Pediatrics, Nagasaki Prefectural Rehabilitation Center for Handicapped Children
  • Moriuchi Hiroyuki
    Department of Pediatrics, Nagasaki University Hospital

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  • Lamotrigineによる薬剤過敏症症候群の1例

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Abstract

  Drug-induced hypersensitivity syndrome (DIHS) is a rare but severe multiorgan disorder. The reactivation of human herpesvirus-6 (HHV-6) and other human herpesviruses has been reported to be associated with its pathogenesis. We herein report a case of 14-year-old female who developed DIHS during the treatment with lamotrigine, a novel antiepileptic drug. She initially presented with fever, skin rash, cervical lymphadenopathy, leukocytosis with eosinophilia and atypical lymphocytosis, liver dysfunction and hypogammaglobulinemia. Discontinuation of the drug and administration of prednisolone led to improvement; however, tapering of prednisolone and administration of midazolam and ketamine thereafter triggered clinical deterioration. She subsequently developed hyperthyroidism followed by hypothyroidism. Herpesviral loads were determined in her peripheral blood by real-time PCR during the course of the treatment, and sequential reactivation of Epstein-Barr virus (EBV), HHV-6 and cytomegalovirus was demonstrated. EBV viremia was detected throughout the course, except for a short period when HHV-6 viremia was at the peak. HHV-6 viremia developed after the secondary deterioration. Cytomegalovirus viremia appeared transiently before the hyperthyroidic state reversed and became hypothyroidic. Although this syndrome should be regarded as a systemic reaction induced by a complex interplay among herpesviruses and the immune responses against viral infections and drugs, it remains unknown how such a sequential reactivation is related to the pathogenesis of the condition.

Journal

  • NO TO HATTATSU

    NO TO HATTATSU 44 (1), 69-72, 2012

    The Japanese Society of Child Neurology

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