ANTI-CONVULSANT HYPERSENSITIVITY SYNDROME -A RARE LIFE THREATENING ADVERSE EFFECT OF A COMMONLY PRESCRIBED DRUG
Journal Title: INTERNATIONAL JOURNAL OF ADVANCED MEDICINE - Year 2017, Vol 1, Issue 3
Abstract
Anticonvulsant hypersensitivity syndrome is a delayed adverse drug reaction associated with the use of aromatic anticonvulsant drugs. It has been most commonly reported with the use of phenytoin, carbamazepine, and phenobarbital. Although its occurrence is rare, it is a serious adverse event often resulting in hospitalization and even death. The clinical manifestations of anticonvulsant hypersensitivity syndrome include a triad of symptoms consisting of skin rashes, fever, and evidence of systemic organ involvement. Diagnosis is most frequently based on the recognition of this triad of symptoms and clinical judgment. The exact mechanism remains to be determined but is thought to have at least three components: deciency or abnormality of the epoxide hydroxylase enzyme that detoxies the metabolites of aromatic amine anticonvulsants, associated reactivation of herpes-type viruses, and ethnic predisposition with certain human leukocyte antigen subtypes. Management of anticonvulsant hypersensitivity syndrome primarily includes discontinuation of the associated anticonvulsant drug. Systemic corticosteroids are usually required for full recovery. An important issue regarding anticonvulsant hypersensitivity syndrome is the cross-sensitivity among aromatic anticonvulsant drugs, which has been reported to be 40-80%. This means that patients with a history of anticonvulsant hypersensitivity syndrome should avoid further use of any aromatic anticonvulsant drug.
Authors and Affiliations
Dr. Rajesh Kumar Meena, Dr. Meena Rinoo Banwarilal, Dr. Nidhi Garg
Keywords
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