Early versus late remission in a cohort of patients with newly diagnosed epilepsy

Purpose:  To count patients with newly diagnosed epilepsy entering early and late remission and to identify prognostic predictors of late remission.
Methods:  Children and adults with previously untreated epilepsy from two Italian tertiary centers (Monza, Bari) were the study population. All patients received monotherapy at treatment start; drug choice and schedule were left to the physician's judgment. A retrospective audit was performed and the following prognostic predictors were identified: age, gender, putative etiology, first electroencephalography (EEG) record, neurologic and psychiatric examination, disease duration at diagnosis, seizure type(s) and number prior to starting treatment, epilepsy syndrome, and first antiepileptic drug. Early remission was defined by 2-year seizure control immediately after treatment start. Late remission was defined by 2-year seizure control achieved at least 24 months after treatment start. Prognostic predictors were assessed by logistic regression analysis, adjusting for age, gender, and center.
Results:  One hundred seventy-four women and 178 men (mean age 31.5 years) were included and followed for 2399.6 person-years. The cumulative time-dependent probability of 2-year remission was 56.3% at 2 years after treatment start, and 62.6, 69.4, and 79.5% at 3, 5, and 10 years. One hundred fifteen patients (23.0%) achieved early remission and 38 patients (10.8%) achieved late remission. The interaction between partial seizures and number of seizures prior to treatment was the only independent predictor of late remission.
Discussion:  The course of epilepsy and the chance of remission are together a complex and dynamic process, possibly explained by the diversity of the mechanisms underlying drug response and the use of an increasing number of drugs.     

Outcomes After Seizure Recurrence in People with Well-Controlled Epilepsy and the Factors That Influence It

Summary: Purpose: To determine the risk of further seizures and probability of further remission after a first seizure recurrence in patients in remission of their epilepsy, and to examine the prognostic factors influencing this risk.
Methods: Continued follow-up of a cohort of 409 patients with a recurrence of seizures after randomization to the Medical Research Council (MRC) Antiepileptic Drug Withdrawal Study.
Results: By 3 years after a seizure, 95% of patients have experienced a further 1-year remission of their epilepsy and by 5 years 90% of patients have experienced a further 2-year remission. The most important factors contributing to the risk of further seizures after a first seizure after randomization were the previous seizure-free interval, having partial seizures at recurrence, and having previously experienced seizures while receiving treatment. There was no evidence that the group of patients who had discontinued or reduced treatment before the occurrence of their first seizure after randomization had a different outcome from those patients who continued treatment.
Conclusion: Our results provide no evidence that discontinuation of antiepileptic drugs (AEDs) modifies the long-term prognosis of a person's epilepsy, although it does increase the risk of seizures in the 1- to 2-year period after discontinuation.     

Discontinuation of anticonvulsant therapy in children with partial epilepsy

To evaluate when it is possible to discontinue anticonvulsant treatment in children with cryptogenic partial epilepsy, the authors studied 89 epileptic children divided into two groups: Group A, 45 children whose therapy was discontinued after 1 year from the last seizure; and Group B, 44 children whose therapy was stopped after 2 years from the last seizure. After 5 years of follow-up, the recurrence rate was similar in the two groups of patients (Group A, 28.8%; Group B, 25%). It is safe to discontinue the anticonvulsant therapy in children with cryptogenic partial epilepsy who were seizure free for only 1 year.     

Resective surgery for intractable focal epilepsy in patients with low IQ: predictors for seizure control and outcome with respect to seizures and neuropsychological and psychosocial functioning

PURPOSE: To investigate possible predictive factors for seizure control in a group of children and adults with low IQs (IQ, < or =70) who underwent resective surgery for intractable focal epilepsy and to study outcome with respect to seizures and neuropsychological functioning. We also studied psychosocial outcome in the adult patients. METHODS: Thirty-one patients (eight children younger than 18 years) with a Wechsler Full Scale IQ of 70 or less underwent comprehensive neuropsychological assessments before and 2 years after surgery. Adults also completed the Washington Psychosocial Seizure Inventory (WPSI). Univariate analyses were used to identify variables differentiating between patients who became seizure free and those who did not. Pre- and postoperative test results were compared by t test for dependent samples. RESULTS: Forty-eight percent of the patients became seizure free, 52% of those with temporal lobe resection and 38% of those with extratemporal resection. Only one variable was predictive for seizure outcome: duration of epilepsy. In one third of the patients, who had the shortest duration of epilepsy (<12 years), 80% became seizure free. Significant improvement was seen regarding vocational adjustment in adults (WPSI). Seizure-free adults improved their Full Scale IQ scores. No cognitive changes were found in seizure-free children or in patients who did not become seizure free. CONCLUSIONS: A good seizure outcome was obtained after resective surgery in patients with intractable focal epilepsy and low IQ, provided that treatment was done relatively shortly after onset of epilepsy. No adverse effects were seen on cognitive and psychosocial functioning.     

A Comparison Between One and Three Years of Treatment in Uncomplicated Childhood Epilepsy: A Prospective Study. II. The EEG as Predictor of Outcome After Withdrawal of Treatment

Summary: Purpose : We wished to evaluate the prognostic usefulness of various EEG parameters with respect to remission rates after discontinuation of antiepileptic drug (AED) therapy in children treated for epileptic seizures.
Methods : Two hundred forty-four children with uncomplicated epileptic seizures were randomized to either 1 or 3 years of treatment with AEDs. The treatment was then discontinued in patients who had been seizure-free during the last 6 months of their allotted time of treatment (n = 154). After treatment discontinuation, the children were followed for at least 2 years. EEG recordings were performed before treatment was initiated and at regular intervals during treatment.
Results : The overall relapse rate was 37%. In many children, the amount of epileptiform activity varied considerably between subsequent recordings made during the treatment. The remission rate was slightly higher for children whose last recordings before AED discontinuation were free of epileptiform activity as compared with children in whom such activity was present. However, children who had irregular generalized spike–wave (SW) activity in the recordings made before discontinuation of treatment had a clearly higher relapse rate (67%) both as compared with children without epileptiform activity (33%) and as compared with children with other types of epileptiform activity (33%) in their last EEG recordings before discontinuation. All children treated for only 1 year whose final EEGs displayed generalized irregular SW activity relapsed.
Conclusions : We conglude that the presence of epileptiform activity does not in itself necessarily influence prognosis after discontinuation of treatment but that certain types of such activity signal a high risk of relapse.     

Two-year remission and subsequent relapse in children with newly diagnosed epilepsy

PURPOSE: Although remission is the ultimate measure of seizure control in epilepsy, and epilepsy syndrome should largely determine this outcome, little is known about the relative importance of syndrome versus other factors traditionally examined as predictors of remission or of relapse after remission. The purpose of this study was to examine remission and relapse with respect to the epilepsy syndrome and other factors traditionally considered with respect to seizure outcome. METHODS: A prospectively identified cohort of 613 children with newly diagnosed epilepsy was assembled and is actively being followed to determine seizure outcomes. Epilepsy syndrome and etiology were classified at diagnosis and again 2 years later. Remission was defined as 2 years completely seizure-free, and relapse as the recurrence of seizures after remission. Multivariable analysis was performed with the Cox proportional hazards model. RESULTS: Five hundred ninety-four of the original 613 children were followed > or = 2 years (median follow-up, 5 years). Remission occurred in 442 (74%), of whom 107 (24%) relapsed. On multivariable analysis, idiopathic generalized syndromes and age at onset between 5 and 9 years were associated with a substantially increased remission rate, whereas remote symptomatic etiology, family history of epilepsy, seizure frequency, and slowing on the initial EEG were associated with a decreased likelihood of attaining remission. Young onset age (<1 year) and seizure type were not important after adjustment for these predictors. Relapses occurred more often in association with focal slowing on the initial EEG and with juvenile myoclonic epilepsy. Benign rolandic epilepsy and age at onset <1 year were associated with markedly lower risks of relapse. About one fourth of relapses were apparently spontaneous while the child was taking medication with good compliance, and more than half occurred in children who were tapering or had fully stopped medication. CONCLUSIONS: A large proportion of children with epilepsy remit. Symptomatic etiology, family history, EEG slowing, and initial seizure frequency negatively influence, and age 5-9 years and idiopathic generalized epilepsy positively influence the probability of entering remission. Factors that most influence relapse tend to be different from those that influence remission.     

Association of subjective anxiety, depression, and sleep disturbance with quality-of-life ratings in adults with epilepsy

Purpose :  To determine the relative contributions of subjective anxiety, depression, sleep disturbance, and seizure-related variables to quality-of-life scores in adults with epilepsy, and the interrelationships among these factors.
Methods :  Consecutive adult patients with epilepsy attending neurology outpatient clinics were recruited. Patients completed the following scales: Hospital Anxiety and Depression Scale (HADS), Hamilton Anxiety Rating Scale, Medical Outcomes Study (MOS) Sleep Scale, Epworth Sleepiness Scale, and Quality of Life in Epilepsy Inventory-31 (QOLIE-31). Univariate and multivariate linear regression models were used to identify variables associated with QOLIE-31 overall score. Path analysis model was constructed to test for interrelations between the variables.
Results :  Two hundred forty-seven patients completed the questionnaires. By multivariate analysis, in order of degree of contribution, HADS anxiety subscale score, MOS Sleep Scale Sleep Problems Index score, HADS depression subscale score, number of current antiepileptic drugs used, and seizure freedom in the past 4 weeks, significantly correlated with QOLIE-31 overall score, accounting for 65.2% of the variance. Complex interrelationships were present between these factors. A general linear model to predict QOLIE-31 overall score in the presence of these factors was constructed.
Conclusion :  Subjective anxiety, depression, and sleep disturbance exerted greater effect than short-term seizure control on quality of life scores of patients with epilepsy. These factors should be considered simultaneously when evaluating effects of treatment on quality of life.     

Influence of clinical,demographic, and socioeconomic variables on quality of life in patients with epilepsy: findings from Georgian study

OBJECTIVE: To identify the clinical, demographic, and socioeconomic factors that are associated with a poor quality of life in patients with epilepsy in Georgia. METHODS: Clinical, demographic, and socioeconomic status data were collected from 115 adult epileptic outpatients being treated in the epilepsy programme at the Sarajishvili Institute of Neurology and Neurosurgery (SINN) in Tbilisi, Georgia. Health Related Quality of Life (HRQL) was measured by the Quality of Life in Epilepsy Inventory (QOLIE-31). Multiple regression analysis was used to determine which variables were associated with QOLIE-31 total and subcomponent scores. RESULTS: Mean age of the patient population was 37.9 (SD 15.8) years; 43.5% were females; 51.8% did not have a partner; 39.1% had some university education; 82.6% were unemployed. Of 115 epileptic patients 83.3% had partial, and 16.7% had generalised seizures. Overall, 32.2% of patients were seizure free, and 28.7% experienced more than 10 seizures over the past year. The variables that most strongly predicted a lower QOLIE-31 total score were a low education level, high seizure frequency, and long duration of epilepsy. The QOLIE-31 all subcomponent scores correlated strongly with seizure frequency. Advanced age was a significant predictor for a low overall quality of life, energy/fatigue, and cognitive scores. Female sex was the factor that significantly predicted a low seizure worry score. Education level strongly correlated with overall quality of life, and cognitive and social functioning scores. CONCLUSIONS: Clinical factors such as high seizure frequency and long duration of epilepsy had a significant influence on HRQL. Advanced age, female sex, and a low education level were the demographic factors that correlated strongly with low quality of life scores.     

Infantile spasms in tuberous sclerosis complex: prognostic utility of EEG

Purpose:   To assess cognitive and epilepsy outcomes in tuberous sclerosis complex (TSC) patients with a history of infantile spasms (IS), in relation to spasm history, electroencephalography (EEG) characteristics, genetic mutation, and treatment history.
Methods:   The authors conducted a retrospective review of 45 children and adults with TSC and a history of IS. EEG reports from the time of spasms were evaluated for all patients, and EEG tracings were accessible and evaluated for 20 patients.
Results:   Clinical outcome was unfavorable for the majority of patients. However, 33% had experienced at least one year of seizure freedom at follow-up, and 24% of those tested had IQs above 70. Hypsarrhythmia severity scores varied widely, with some EEGs severely hypsarrhythmic and others essentially normal. Lower IQ was significantly associated with higher hypsarrhythmia severity scores on EEG report, the presence of background disorganization on EEG report, the absence of normal sleep patterns on EEG, and a lower degree of treatment success on vigabatrin. A relationship between poor cognitive outcome and poor epilepsy outcome was confirmed. The correlation between poor epilepsy outcome and a greater degree of background disorganization on EEG approached significance, as did the association between subsequent intractable epilepsy and an older age at IS cessation. A greater than expected ratio of TSC2 to TSC1 patients was observed across this IS population.
Discussion:   Early detection and successful treatment portend a more favorable outcome in TSC patients with IS. Although EEG findings in these patients vary, specific characteristics may serve as clinically useful prognostic markers.     

Predictors of seizure outcome in newly diagnosed partial epilepsy: memory performance as a prognostic factor.

The epilepsy patients whose seizures will prove to be refractory should be identified as early as possible, and thus the need for new prognostic factors of intractable epilepsy is evident. The aim of the study was to investigate predictors of seizure outcome in a multivariate analysis. Neurological, electroencephalography (EEG) and neuropsychological variables were analyzed as potential predictors of epilepsy. Eighty-nine newly diagnosed adult patients with partial epilepsy were, after a prospective 2-year follow-up period, categorized into one of the two groups: patients with satisfactorily controlled epilepsy, and patients with refractory epilepsy. Six variables predicted 2-year seizure outcome: presence of spike focus in EEG, partial complex or mixed seizure type, remote symptomatic etiology, moderately impaired memory performance in immediate recall and in delayed recognition of the word list, and age at the time of diagnosis. The correct seizure outcome could be predicted with the model in 94% of newly diagnosed epilepsy patients. The presence of verbal memory impairment at the time of the diagnosis of partial epilepsy is a significant predictor of seizure outcome and, together with clinical and EEG variables, it predicts seizure outcome in the majority of the patients. Memory performance as a prognostic factor is of most value in patients with risk of refractory epilepsy and when used in a multidisciplinary setting.     

Epilepsy and the impact of an epileptology clinic for patients with mental retardation and associated disabilities in an institutional setting

Summary:  Purpose: Epilepsy is a common problem in institutionalized patients with multiple handicaps. Limited data exist on the characteristics of epilepsy in this patient population and the impact of systematic evaluation by an epilepsy service.
Methods: We evaluated 138 patients with epilepsy, institutionalized at a facility that cares for 324 patients with multiple handicaps. Evaluation included EEG, MRI, and video-EEG monitoring. The medication regimen was changed according to seizure diagnosis and the status of seizure control. Follow-up was available for ≥6 months in 110 patients, 1 year for 89, and 1.5 years for 49 patients. We analyzed the seizure and epilepsy diagnosis in this population, as well as the seizure frequency after evaluation and treatment
Results: The 76 male and 62 female patients' ages ranged from 14 to 73 years. Seventy-three patients had fewer than one seizure per month, whereas 29 patients had at least one seizure per month. Of 131 patients taking antiepileptic drugs (AEDs), 62 were receiving monotherapy, and 69 were receiving two or more AEDs. At the last follow-up, overall 55% of patients had reduced seizure frequency, including 23% who became seizure free. Two of 36 patients had spontaneous seizure recurrence after being seizure free with no AEDs for 4 months in one patient and 3 years for the other. Attempts were made to discontinue phenobarbital, primidone, and clonazepam in 21 patients. However, these were discontinued in only five patients.
Conclusions: Epilepsy is heterogeneous in institutionalized patients with multiple handicaps. It is often responsive to medical therapy. Evaluation and treatment by epilepsy specialists had an overall favorable impact on seizure control.     

Long-Term Prognosis in Childhood Epilepsy: Survival and Seizure Prognosis

All children aged 0-19 years who had active epilepsy in a defined Swedish population were traced and given a clinical and psychometric investigation. Twelve years later, a follow-up study was carried out. Eleven of the 194 children had died, 8 of whom had had signs of neurodeficit, i.e., abnormal neurology and/or mental retardation. A long-standing remission of seizures occurred in 124 of the 194 children. Signs of neurodeficit, frequent seizures, and many types of seizures were negative prognostic factors. The presence of all these factors carried a bad prognosis, seizures persisting during 12 years in greater than 80%. For those who were mentally and neurologically normal and had low seizure frequency, prognosis was excellent, only 11% still having active epilepsy after 12 years. A study of the annual remission rate showed that each year approximately 13% of the children without neurodeficit had remission from epilepsy the next year. This rate appeared to be stable over the 12 years studied. Among those children with neurodeficit, the annual remission rate was high only during the first years after onset, later falling to 3% a year.     

Outcome predictors for surgical treatment of temporal lobe epilepsy with hippocampal sclerosis

Purpose: To study long-term postoperative course and identify predictors for postoperative seizure control in patients with medically intractable temporal lobe epilepsy (TLE) associated with hippocampal sclerosis (HS), diagnosed by magnetic resonance imaging (MRI), and ascertained histopathologically. To compare patients becoming seizure-free (i.e., cured from epilepsy) and patients experiencing prolonged seizure-free periods interposed with recurring seizures.
Methods: One hundred thirty-five patients (74 women) underwent complete evaluation for epilepsy surgery. The predictive value of duration of epilepsy, age at onset, age at surgery, gender, febrile convulsion history, ictal dystonic posturing, unilateral interictal electroencephalography (EEG) discharges (IED), preoperative secondarily generalized tonic–clonic seizures (SGTCS), and preoperative seizure frequency for short- and long-term postoperative seizure control were evaluated with two classification systems: Classification 1 (seizure-freedom with or without auras during 12-months before observation points) and the stringent classification 2 [International League Against Epilepsy (ILAE) Ia; absolute absence of seizures and auras after operation].
Results: Unilateral IED at year 1 and 2 (p = 0.037 and p = 0.034), male gender and low seizure frequency at year 2 (p = 0.013 and p = 0.046) were significant predictors for seizure freedom using classification 1. All variables (except male gender at year 2; p = 0.035) lost their predictive power, applying classification 2. The proportion of seizure-free patients remained stable between 70% to 79% with classification 1, but decreased from 64.4% at year 1 to 45.8% at year 5 with classification 2.
Discussion: Positive predictors of short-term outcome do not predict long-term outcome in patients with TLE associated with HS. Absolute freedom of seizures and auras cannot be predicted by conventional preoperative variables.     

A longitudinal study of surgical outcome and its determinants following posterior cortex epilepsy surgery

Purpose:   To investigate the longitudinal seizure outcome and identify potential prognostic indicators following posterior cortex epilepsy (PCE) surgery.
Methods:   We reviewed patients who underwent a parietal, occipital, or parietooccipital resections between 1994 and 2006, using survival analysis and multivariate regression with Cox proportional hazard modeling. A favorable outcome was defined as Engel Class I at last follow-up.
Results:   Fifty-seven patients were identified with a mean follow-up of 3.3 years (range 1–12 years). The estimated chance of seizure freedom (SF) was 73.1% at 6 postoperative months, 68.5% at 1 year, 65.8% at between 2 and 5 years, and 54.8% at 6 years and beyond. Most recurrences (75%) occurred within the first 6 postoperative months. Parietal resections had a worse outcome than occipital or parietooccipital resections (52% SF vs. 89% and 93%, respectively, at 5 years). Independent predictors of recurrence included an epilepsy etiology other than tumor or dysplasia [risk ratio (RR) 2.29], limiting resection to a lesionectomy (RR 2.10), having ipsilateral temporal spiking on preoperative scalp electroencephalography (EEG) (RR 2.06), or any ipsilateral spiking on postoperative EEG (RR 2.70) (Log likelihood-ratio test p < 0.0001). Only 40–50% of patients with a poor outcome predictor were SF at 5 postoperative years as opposed to about 80% otherwise. In surgical failures, recurrent seizure frequency was related directly to baseline seizure frequency and to the presence of ipsilateral spiking on postoperative EEG.
Discussion:   These data highlight favorable long-term outcomes following PCE surgery. Limited surgical resection and diffuse baseline epileptogenicity may be important predictors of seizure recurrence.     

Long term course of childhood epilepsy following relapse after antiepileptic drug withdrawal

OBJECTIVE: To explore the course of epilepsy following relapse after antiepileptic drug (AED) withdrawal. METHODS: Forty two patients were identified with onset of epilepsy in childhood in whom AEDs had been withdrawn after at least 2 years of seizure freedom, and in whom a relapse had occurred. Two patients were lost to follow up. RESULTS: Median follow up after AED withdrawal was 5.9 years (range 1.6-13.2 years). Relapse occurred in more than half of the patients within 6 months of AED withdrawal. At the end of follow up, 12 patients (30%) were seizure free for at least 1 year (mean 10.4 years) without medication; 16 (40%) were seizure free for at least 1 year (mean 5.3 years) with ongoing medication; and 12 patients (30%) were seizure free for less than 1 year with medication. No status epilepticus occurred in any patient after withdrawal. Age at onset, if over the age of 5, combined with normal intelligence were predictive of an excellent outcome; presence of a neurological disorder, and hence symptomatic aetiology, was predictive of poor outcome after a relapse. CONCLUSIONS: Fears that premature withdrawal of AEDs might result in uncontrollable seizures were unsubstantiated in this study. The current practice of withdrawing AEDs in children who have been seizure free for 2 years can be beneficial to most of these patients.     

Efficacy and safety of felbamate in children under 4 years of age: a retrospective chart review

Background and purpose:  To review our experience of the efficacy and tolerability of felbamate in children younger than 4 years.
Methods:  We used a retrospective chart review to identify 53 children with seizures who were younger than 4 years. Efficacy was evaluated based on the occurrence of responsiveness, defined as seizure frequency reduction of more than 50% for a minimum period of 4 months. Tolerability was based on parent-reported side effects.
Results:  Twenty-two (41%) patients resulted to be responders and 31 (59%) did not. By univariate analysis, those achieving seizure remission were probably much older, to have a shorter history of epilepsy and a lower frequency of seizures before felbamate therapy. The number of antiepileptic drugs (AEDs) used before felbamate therapy was the only significant predictor of the duration of response to felbamate, with a longer responsiveness to the drug seen in those who were placed under fewer than three AEDs before felbamate compared with those who had taken more than three (median, 16 months vs. 7 months; P  < 0.0084). Side effects occurred in 30% of the subjects, but these did not require discontinuation of the drug.
Discussion:  Felbamate is an effective medication for a wide range of epilepsy syndromes in children younger than 4 years. Although caution is necessary when the drug is used in children, felbamate might represent a possible option for the treatment of epilepsy in this age group.     

Neuropsychological Effect of Temporal Lobe Resection in Preadolescent Children with Epilepsy

Summary: Purpose : Numerous studies have demonstrated changes in cognitive, memory, and language functioning in adults and adolescents after temporal lobectomy, yet little information is available regarding neuropsychological outcome in preadolescent children.
Methods : We studied pre-and postoperative neuropsychological test results from 14 children who underwent temporal lobe resection for intractable epilepsy at age 7–12 years (mean 9.4 years).
Results : Thirteen patients (93%) had no seizures or less than one seizure a year at follow-up 23-48 months (mean 34 months) after operation. Postoperative neuropsychological testing was performed 6–9 months (mean 7 months) after surgery in 13 patients and 36 months after the first operation in 1 patient who underwent two-stage resection of a tumor. Verbal, Performance, and Full Scale IQ were initially in the low-average range, with no significant change across the pre-and postoperative evaluations. Immediate verbal memory performance decreased significantly in children who initially performed above the median preoperatively and tended to decrease in children who had left rather than right temporal lobe resection. Significant postoperative decreases in delayed memory scores were independent of preoperative ability or side of resection.
Conclusions : Our small study suggests vulnerability to postoperative decline in immediate verbal memory scores in preadolescent children who have higher baseline immediate memory function or undergo left rather than right temporal lobe resection, similar to that observed in adolescents in adults. The entire group exhibited a statistically significant decrease in delayed verbal memory. Study of larger series of patients will be important to clarify further the short-and long-term risks and benefits of temporal lobe resection in childhood.     

Rolandic Epilepsy: An Incidence Study in Iceland

Summary: Purpose: We wished to determine incidence, clinical features, and prognosis of benign rolandic seizures (BRS) and benign rolandic epilepsy (BRE) in a total population.
Methods: Cases were ascertained through review of all EEG records, and diagnosis was verified by review of medical records. Follow-up information regarding seizures and treatment was obtained from parents and treating physicians.
Results: In the Icelandic population aged 3–15 years, the incidence of BRS is 6.2 and BRE 4.7 in 100,000. Five years after onset 95% were seizure-free. At last follow-up, all were seizure free and had not been treated with antiepileptic drugs (AEDs) for at least 1 year.
Conclusions: Our study demonstrates that BRS is a common entity in children. The prognosis is excellent and treatment is not necessary in all cases. It is important to identify BREBRS correctly and distinguish it from other types of epilepsy.     

Remission of Seizures in a Population-Based Adult Cohort with a Newly Diagnosed Unprovoked Epileptic Seizure

PURPOSE: To investigate the probability of achieving remission of seizures after a newly diagnosed unprovoked epileptic seizure in an adult population-based cohort. METHODS: 107 patients aged 17 years or older with a newly diagnosed unprovoked epileptic seizure (index seizure) in 1985 through 1987 were followed up until the date of death or to the end of 1996. The proportion of cases during follow-up that attained a 1-year, 3-year, 5-year remission was calculated by actuarial analyses. Variables for stratification were age at diagnosis, seizure type, etiology, EEG, and the occurrence of seizures within 1 year of initiation of antiepileptic drug (AED) therapy. RESULTS: Cumulative 1-, 3- and 5-year remission rates were 68, 64, and 58%. There was no statistically significant difference regarding time points of achieving a 1-year remission after epilepsy diagnosis and the subsequent probability during follow-up of attaining a 5-year remission. Having seizures within 1 year after beginning with an AED was a statistically significant predictor of never achieving 1-year remission of seizures during follow-up (refractory seizures). Other stratified variables were not statistically significant predictors. CONCLUSIONS: Seizure prognosis for the majority of patients with newly diagnosed epilepsy is good. The time required after epilepsy diagnosis to achieve a 1-year remission of seizures does not affect the probability of additionally achieving a 5-year remission. Patients with refractory seizures can be identified within a few years from diagnosis of epilepsy. These patients must be targeted early for optimization of pharmacologic treatment, possible surgery, and psychosocial intervention.     

Active seizures are associated with reduced adaptive functioning in children with epilepsy

Children with epilepsy are at risk of suboptimal adaptive functioning. Research has not yet established how specific seizure and treatment variables may affect adaptive functioning, which would allow clinicians to better identify at-risk children. This study sought to determine the seizure and treatment variables predictive of adaptive functioning. Forty-six children with epilepsy participated in this study. Using multiple regression, active seizures (one or more seizures in the prior year) significantly predicted scores on the General Adaptive Composite of the Adaptive Behavior Assessment System-II. The active seizures variable uniquely explained 19% of the variance in adaptive functioning, with children with active seizures demonstrating significantly poorer adaptive functioning. The number of current AEDs, past AEDs, seizure types, age at seizure onset, and temporal lobectomy were not significant predictors. Post hoc analyses that divided the active seizures group according to seizure frequency in the prior month did not find significant differences in adaptive functioning. The results of this study suggest that children with seizures that are not fully controlled are at greater risk of suboptimal adaptive functioning.