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|Title:||Clinical characteristics of a South Indian cohort of juvenile myoclonic epilepsy probands|
|Publisher:||SEIZURE-EUROPEAN JOURNAL OF EPILEPSY|
|Citation:||SEIZURE-EUROPEAN JOURNAL OF EPILEPSY. 12; 7; 490-496|
|Abstract:||Despite the distinctive clinical and electroencephalographic features known for five decades, even today, juvenile myoclonic epilepsy (JME) is frequently unrecognised and misdiagnosed in both developed and developing countries. Utilising 183 JME probands belonging to the South Indian state of Kerala, assembled through a tertiary referral centre for molecular genetic studies, we explored the phenotypic peculiarities, clinical genetics, and problems and pitfalls in the diagnosis of JME. At referral, only six (3.3%) patients carried the diagnostic label of JME, default in diagnosis resulted from failure to elicit the history of myoclonic jerks by the referring physicians. During the mean delay of 8.6 +/- 7.0 years in diagnosing JME, seizure control in the majority was poor due to inappropriate antiepileptic drug (AED) therapy. A history of epileptic seizures was obtained in 6.2% of the first-degree and 2.2% of the second-degree relatives of the probands; 37.7 and 11.1% of them, respectively, were diagnosed as JME. Although most of the clinical features of our cohort were in accordance with the literature, two notable differences we observed were the relatively increased occurrence of absence seizures and low frequency of photoparoxysmal responses. Although the variability in the clinical characteristics of JME may be apparent due to differences in the ascertainment of the data, they may well be an expression of a true clinical heterogeneity, and are in accordance with the complex and variable mode of inheritance and conflicting linkage studies reported for this syndrome from different ethnic groups. (C) 2003 BEA Trading Ltd. Published by Elsevier Science Ltd. All rights reserved.|
|Appears in Collections:||Journal Articles|
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