Juvenile myoclonic epilepsy (JME) is the most common type of epilepsy affecting adolescents, and it is hallmarked by myoclonic jerks, predominantly after awakening, aggravated by sleep deprivation and stress. 1 The majority of patients have occasional generalized tonicclonic seizures (GTCS), and about one-third have absence seizures. 2The antiepileptic drugs (AEDs) most commonly used in the treatment of JME are valproate, lamotrigine, levetiracetam, topiramate, and zonisamide. 3 Juvenile myoclonic epilepsy was initially considered a manageable type of epilepsy, with intellectual abilities within the normal range, normal neurologic examination, normal magnetic resonance imaging of the brain, and a favorable response to treatment in the majority of patients. 4,5 However, the rate of relapse upon withdrawal of AEDs was high, and the general advice was that these patients ought to continue medication throughout life. 5-7 Smaller, but more Objectives: Withdrawal of antiepileptic drugs (AEDs) has been discouraged in juvenile myoclonic epilepsy (JME). However, impulsivity as a consequence of executive dysfunction in JME may influence treatment adherence. The aim of the present study was to assess how common withdrawal of AEDs is in a large and representative JME group. Materials and methods:Patients with genetic generalized epilepsy (GGE) were identified through a retrospective search of medical records at Drammen Hospital, Norway, and invited to a clinical interview. Information related to AED withdrawal was analyzed in those classified as JME.Results: A total of 132 patients with GGE were interviewed (87 JME). Thirty-five patients with JME (40%) discontinued AEDs, of which 74% did so without consulting a doctor. The rate of self-withdrawal was significantly higher in JME than in other types of GGE. Having a parent with psychosocial difficulties was significantly overrepresented in the JME self-withdrawal group. Twelve of those who discontinued AEDs (34%) were free from generalized tonic-clonic seizures (GTCS) and without antiepileptic drugs >1 year. All but one of them withdrew AEDs without consulting a doctor. Age at first motor seizure was significantly higher in those with a favorable outcome of AED withdrawal. Conclusions: Self-withdrawal of AEDs is common in JME, especially in those with troublesome conditions at home. However, about 1/3 may remain free from GTCS without AEDs. The findings indicate a need for a stronger follow-up with appropriate information about the prognosis of the disorder. K E Y W O R D Sadherence, antiepileptic drugs, juvenile myoclonic epilepsy, withdrawal
Background: Patients with juvenile myoclonic epilepsy (JME) may have uncontrolled seizures. The purpose of this study was to investigate the use and challenges with antiepileptic drugs (AEDs) and the patients' view of these challenges. Method: A questionnaire about the use of AEDs, adherence to therapy, and quality of life was given to patients with JME recruited from Drammen Hospital. Data regarding AEDs were confirmed from medical records at Drammen Hospital, Norway (2007. Additional clinical interviews were performed, and a mixed method approach was applied. Results: Ninety patients with defined JME diagnosis, 54/36 women/men aged 14-39 (mean: 25) years, were included. Only 29 (33%) were seizure-free. Within the last year, 21% experienced generalized tonic-clonic seizures (GTCS), and 68% had myoclonic jerks. Seventy-six (84%) used AEDs, 78% in monotherapy. A total of 10 AEDs were used;: most commonly valproate (n = 33), lamotrigine (n = 27), and levetiracetam (n = 21). Two-thirds of valproate users were men while all other AEDs were used more in females than in men. Valproate and levetiracetam displayed better efficacy against GTCS than lamotrigine. One-third often/sometimes forgot their medication nonintentionally while 14% had intentional poor adherence. The majority reported good quality of life (76%). No significant correlations between the use of AEDs, use of valproate, poor adherence, quality of life score, and seizure freedom were demonstrated. Half of the patients had serum concentrations measured every year, and twothirds thought this was important. Qualitative interviews elucidated treatment challenges in JME;, adverse effect burden, adherence, and activities of daily life. Conclusion: Despite the use of AEDs in the majority of patients, only one-third were seizure-free. Other challenges included polypharmacy, the use of valproate in women, and variable adherence. This points to a need for closer follow-up in patients with JME.
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