The relative impact of anxiety, depression, and clinical seizure features on health-related quality of life in epilepsy

PURPOSE: To determine the independent effects of depression and anxiety on health-related quality of life (HRQOL) in epilepsy as well as the relative explanatory power of psychiatric comorbidity compared with demographic and clinical epilepsy variables (e.g., seizure frequency, severity, and chronicity). METHODS: Subjects (n = 87) with temporal lobe epilepsy completed self-report measures of depression, anxiety, HRQOL, and seizure severity. Information was derived regarding subjects' seizure frequency, duration, and treatment. HRQOL status (QOLIE-89) was examined in relation to self-reported symptoms of anxiety and depression, clinical seizure features, and demographic characteristics. RESULTS: Depression and anxiety were independently associated with reduced HRQOL. Psychiatric comorbidity explained more variance in HRQOL than did combined groups of clinical seizure or demographic variables. Although weaker in explanatory power than psychiatric comorbidity, several epilepsy factors were nonetheless significantly related to HRQOL, including seizure frequency, severity, and chronicity. CONCLUSIONS: Interictal anxiety and depression exert independent adverse effects on HRQOL. In addition, frequent, severe, and chronic seizures reduce HRQOL, but appear less powerful predictors of HRQOL than interictal psychiatric symptoms. Recognition and treatment of comorbid depression and anxiety is an important consideration in improving quality of life in epilepsy.     

Impact of epilepsy in adolescence: a UK controlled study

PURPOSE: The goals of the work described here were to investigate the psychological and social impact of epilepsy on adolescents and to identify to what degree clinical and demographic variables and knowledge of epilepsy could influence psychosocial functioning. METHODS: Seventy adolescents with epilepsy were compared with healthy controls (matched for age, sex, and reading ability) on measures of self-esteem, social adjustment, depression, and obsession. Within the epilepsy group, the impact of seizure frequency, seizure severity, and knowledge of epilepsy on the above measures was also determined. RESULTS: Adolescents with epilepsy showed significantly higher levels of depression, anhedonia, and social anxiety and significantly higher numbers of obsessive symptoms than the adolescents without epilepsy. Among the adolescents with epilepsy, high seizure frequency was significantly associated with low self-esteem, and tonic-clonic seizures were specifically associated with higher levels of depression. Finally, low levels of epilepsy knowledge were significantly associated with higher levels of depression, lower levels of self-esteem, and higher levels of social anxiety. CONCLUSIONS: Epilepsy has a significant psychosocial impact on adolescents at this difficult time of life. Social support and access to appropriate information about epilepsy could be of help.     

A psychosocial view of anxiety and depression in epilepsy

The aim of this study was to study anxiety and depression in patients with epilepsy and evaluate their relationships with neuroepilepsy and psychological variables. neuroepilepsy and psychological variables. Sixty patients and 60 healthy subjects were interviewed at the outpatient clinic for epilepsy, using the Beck Depression Inventory and State-Trait-Anxiety Inventory. The objective of the semistructured interview was to identify the patients' perception of the disease, self-concept, personal strategies, and perception of seizure control. There was a significant difference in anxiety and depression between the groups, as well as a strong relationship between perception of seizure control and depression and anxiety, independently assessed. Epilepsy was associated with disease (63.4%), mental problems (11.6%), feelings of shame, fear, worry, and low self-esteem (56.6%), and perception of stigma (26.6%). The strategies were: looking for social support, seeking medical treatment, withdrawal, denial, and spiritual support. There was a significant association between psychological symptoms and perception of seizure control, which reinforces the importance of subjective aspects involved in epilepsy.     

Outcomes of Add-on Treatment with Lamotrigine in Partial Epilepsy

Summary: The need for new antiepileptic drugs (AEDs) and more sensitive methods of assessing their efficacy is well recognized. This study was designed to evaluate the efficacy and safety of lamotrigine (LTG), a potential new AED and to develop and test new outcome measures. A health-related quality of life (HRQL) model was developed which contains previously validated measures of anxiety, depression, happiness, overall mood, self-esteem, and mastery and a specifically designed seizure severity scale with patient- and caregiver-based components. This HRQL model was used in a randomized, placebo-controlled, double-blind, cross-over study of LTG in 81 patients with refractory partial seizures. Seizure frequency was the primary measure and seizure severity and the HRQL were secondary measures of efficacy. The reduction in seizure frequency with LTG, relative to placebo, was 29.7% [95% confidence interval (CI) 17.8%, 39.9%] for total seizure count, 33.4% (95% CI 14.8%, 47.9%) for complex partial seizures (CPS) and 20.3% (95% CI 0.3%, 36.2%) for secondarily generalized tonic-clonic seizures (GTCS). However, although 41 patients elected to continue with LTG, only 11 experienced at least 50% reduction in total seizures, indicating that other factors influenced their decision. The score with LTG, relative to placebo, was significantly lower for the ictal (p = 0.017) and caregivers (p = 0.035) subscales of the seizure severity scale and significantly higher for happiness (p = 0.003) and mastery (p = 0.003). Simple correlation and multiple-regression analyses indicate that the effects on seizure frequency, seizure severity, and psychological variables appear to be independent of each other. This study indicates that LTG is effective in reducing seizure frequency and has additional favorable effects on seizure severity, mood, and perceived internal control. Some of the scales used indicate the potential of secondary measures of efficacy to enhance the sensitivity of trials of new AEDs.     

Self-perception of seizure precipitants and their relation to anxiety level, depression, and health locus of control in epilepsy.

BACKGROUND: The aim of this study was to determine the prevalence and nature of self-perceived seizure precipitants in epilepsy patients, and evaluate whether anxiety level, depression, or health locus of control influence self-perception of seizure precipitants. METHODS: Adults aged 18 and older who had epilepsy for at least 1 year were recruited in either the inpatient epilepsy monitoring unit or the outpatient epilepsy clinic at Thomas Jefferson University in 2006. Patients anonymously filled out a questionnaire, which included data about age, sex, education, seizure control, and three questionnaires including identification of seizure precipitants, Hospital anxiety and depression (HAD) scale, and Form C of the multidimensional health locus of control (MHLC). Discriminant function analysis was used for statistical analysis. RESULTS: Two hundred patients participated, with a mean age of 40.3+/-16 years. One hundred thirty (65%) patients reported one or more seizure precipitants. Stress (49.5%), lack of sleep (35.5%), and fatigue (32.5%) were the most common seizure triggers reported. Seizure control, anxiety level, and powerful others subscale in HLC scores were significantly related to self-perception of seizure precipitants. Subjective seizure triggers (stress, lack of sleep) were related to psychological factors. CONCLUSIONS: The perception that certain triggers precipitate seizures is related to anxiety, health locus of control, and seizure control. Hence, seizures might be misattributed to irrelevant precipitants because of an underlying psychological predisposition. Alternatively, there may be a physiological relationship between seizures and the triggers. Prospective studies are required to clarify the relationship between seizure precipitants and seizure occurrence.     

Refractory Epilepsy: An Evaluation of Psychological Methods in Outpatient Management

Two groups of adult outpatients (n = 19 and n = 21) with poorly controlled epilepsy and significant psychological disorder, assessed in terms of rating scales, received two psychological treatments in a balanced cross-over design after stable baseline seizure frequency had been established. A third group (n = 19), who had poorly controlled epilepsy but no significant psychological disturbance received one type of psychological treatment after a stable baseline. The treatments were educational and were designed to improve coping skills. Weekly seizure frequency was monitored for 42 weeks, and self-rating measures of anxiety and depression were obtained before treatment and at the end of follow-up. All three groups showed a significant reduction in seizure frequency that was maintained at 6-month follow-up. The two groups with psychological symptoms showed a significant improvement in scores on the self-rating scales. We concluded that routine use of psychological intervention may be helpful in outpatient management of epilepsy.     

Determinants of disease severity in adults with epilepsy: Results from the Neurological Diseases and Depression Study

BackgroundEpilepsy severity has been recognized as a significant predictor of health-related quality of life in patients with epilepsy. However, clinical markers of epilepsy severity such as seizure frequency often fail to capture important aspects of the disease. This study investigates the factors associated with patient-reported severity of epilepsy, assessed by the Global Assessment of Severity of Epilepsy (GASE) scale in adults with epilepsy.MethodsData from a cohort of 250 patients consecutively enrolled in the Neurological Diseases and Depression Study (NEEDS) were used to assess the determinants of epilepsy severity as measured by the GASE scale. Multiple linear regression analyses were used to examine the mediation effect of clinical and sociodemographic characteristics on patients' ratings on the GASE scale.ResultsThe mean age of the study participants was 39.8 (SD = 14.9) years, of which 44.4% were male. About 66.8% of the participants reported “not at all severe” or “a little severe” epilepsy, while 0.4% reported “extremely severe” epilepsy. One-year seizure freedom, number of antiseizure medications, medication side effects, depression, anxiety, and seizure-related disability were identified as significant determinants of patients' ratings of epilepsy severity. Seizure-related disability mediated the effects of 1-year seizure freedom, number of antiseizure medications, and medication side effects on epilepsy severity.ConclusionOverall, patients with epilepsy who reported higher GASE scores were less likely to achieve 1-year seizure freedom and more likely to be on more antiseizure medications, experience more side effects from medication, endorse more depression and anxiety symptoms, and have increased self-reported seizure-related disability. The identified determinants of global, self-rated epilepsy severity can aid the design of appropriate interventions and support services for patients with severe epilepsy.     

A Pilot Study of Mood in Epilepsy Patients Treated with Vagus Nerve Stimulation

Context. Antiepileptic drugs (AEDs) are frequently used for their beneficial mood effects.Objective. We sought to determine if there was a quantifiable effect on mood of the vagus nerve stimulator (VNS) when used as an antiseizure treatment.Design. Mood was assessed before and 3 months after VNS implantation in adult epilepsy patients. A group of adult epilepsy patients on stable AED regimens were used as a comparison group. AED regimens were unchanged during the study. The change in mood scale scores across time was assessed by t test (intragroup) and two-factor repeated-measures ANOVA (intergroup).Setting. An epilepsy center in a university hospital was the setting.Subjects. Twenty consecutive adult epilepsy patients undergoing VNS implantation to improve seizure control and twenty adult seizure patients with no intervention were enrolled.Main outcome measures. The mood scales used were the Cornell Dysthymia Rating Scale (CDRS) and the Hamilton Depression (Ham-D), Hamilton Rating Scale for Anxiety (Ham-A), and Beck Depression Inventory (BDI) scales.Results. The VNS group showed a significant decrease in mood scale scores across time (t test CDRS P = 0.001, Ham-D P = 0.017, BDI P = 0.045), indicating a decrease in depressive symptoms. The Ham-A scores in the VNS group and the comparison group scores did not significantly change across time. There were no significant differences between groups across time, although the BDI approached significance at P = 0.07. The VNS group had a significant decrease in seizure frequency compared with the comparison group (P = 0.01). There was no difference in mood scales over time between the VNS treatment responders (defined by >50% decrease in seizure frequency) and nonresponders, suggesting dissociation between seizure frequency reduction and mood change.Conclusion. VNS treatment is associated with mood improvement as measured by multiple scales, but differences in mood scale scores over time between the VNS and a comparison group were not found.     

Psychiatric comorbidity, health, and function in epilepsy

Epilepsy is a chronic condition that has complex effects on social, vocational, and psychological function. Several psychiatric disorders have been shown to have increased prevalence in persons with epilepsy compared to the general population. Depression appears to be the most common psychiatric comorbidity, but anxiety and other diagnoses have not been extensively investigated. Several studies have found that depression or psychological distress may be the strongest predictors of health-related quality of life, even including seizure frequency and severity, employment, or driving status. Despite the high prevalence and adverse effects of comorbid psychiatric disorders in epilepsy, very little is known about optimal treatment strategies, or even the efficacy of standard treatments. Further research is needed to increase understanding of the mechanisms of psychiatric illness in epilepsy, the effects of depression and anxiety on long-term clinical outcomes, and the most effective treatments.     

Behavioural adjustment in seizure-free epilepsy patients on monotherapy

PURPOSE: Risk of depression, anxiety, and reduced quality of life is elevated in epilepsy patients, due to a range of factors including aetiology, structural brain lesions, seizure worry, epilepsy surgery, hereditary factors, psychosocial factors, and possible adverse effects of antiepileptic drugs (AEDs). Studies on the relationships between epilepsy-related variables and behavioural adjustment have been mainly conducted on patients with persisting seizures, whereas the present study investigated behavioural function in epilepsy patients seizure-free for more than 2 years on monotherapy. METHODS: Adults with epilepsy on AED monotherapy and without epileptic seizures for at least 2 years (n=126) were assessed with the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), in addition to MRI and EEG. RESULTS: Group analysis found mean MMPI-2 scores on all the clinical and content scales to be within the normal range. Abnormally elevated scores on scales measuring aspects of depression, health-related concerns, low self-esteem, negative treatment indicators, and physical complaints were recorded in a higher proportion of patients than would normally be expected. Multiple regression analysis showed that MRI pathology was a significant predictor for an abnormally poor score on the low self-esteem scale, and that epilepsy onset 相似文献   

Coping with epilepsy: the effect of coping styles on self-perceived seizure severity and psychological complaints.

Having a chronic condition like epilepsy imposes a serious burden for the sufferer. This is reflected in a higher level of psychological complaints. The way in which one copes with epilepsy is an important determinant in this level of complaints and in the self-perceived severity of the seizures. In this paper the relation between coping styles and self-perceived seizure severity as well as psychological complaints, is studied. A group of epilepsy patients was asked to fill out a number of questionnaires on coping styles, self-perceived seizure severity and psychological complaints. The patients with epilepsy were seen to have coping styles different from the general population: in general they tended to use less active strategies in coping with their problems. A less active coping style was found to be related to a higher self-perceived seizure severity. Other epilepsy-related variables, like seizure frequency, showed no relation with self-perceived seizure severity. This could mean that stimulating patients to use active coping styles results in a decrease in self-perceived seizure severity.     

The effect of seizure severity on quality of life in epilepsy

Seizure severity is an important aspect of epilepsy. The relationship between seizure severity and quality of life in epilepsy, however, has been incompletely explored. With a data set of 118 women from the baseline phase of a clinical treatment trial, the relationship between seizure severity and aspects of quality of life was evaluated. Two domains of the Quality of Life in Epilepsy-31 (QOLIE-31) correlated highly significantly with seizure severity: Seizure Worry (r=-0.265, P=.004) and Social Functioning (r=-0.280, P=0.002). Two additional domains were significantly correlated: Overall Quality of Life (r=-0.210, P=0.023) and Cognitive (r=-0.209, P=0.024). When the potentially confounding effect of depression, measured by the Beck Depression Inventory, was controlled for, the regression of seizure severity with QOLIE-31 Seizure Worry remained significant (P=0.006, R(2)=0.153), as did the regression with QOLIE-31 Social Functioning (P=0.002, R(2)=0.184) and the regression with QOLIE-31 Cognitive (P=0.037, R(2)=0.30). These findings indicate that severe and potentially injurious seizure behaviors contribute to anxiety and socially avoidant behavior for persons with intractable epilepsy.     

Self-concept in adolescents with epilepsy: biological and social correlates

The purposes of this study were to (1) compare self-esteem in teens with epilepsy to the normative mean, and (2) identify which neurologic/epilepsy and social/familial variables are associated with self-esteem. Thirty-seven adolescents (aged 12-18 years) attending a pediatric neurology clinic completed the Piers-Harris 2 Self-Concept Scale, Family Assessment Measure III, Child Attitude to Illness Scale, and a brief questionnaire about current seizure status (frequency, severity, and number of antiepileptic drugs). Neurology clinic charts were reviewed for seizure types, etiology, age at diagnosis, and number of failed therapies. While Total Piers-Harris t score and most subscales did not differ significantly from the normative mean, teens with epilepsy had higher scores on Behavioral Adjustment (P < 0.04) and Physical Appearance and Attributes (P < 0.03). On univariate analysis, number of current antiepileptic drugs (P < 0.05) and Attitude to Illness and Family Function scores (P < 0.02 for both) were significantly associated with self-esteem. On linear regression analysis, only the Family Function score (P < 0.02) and number of antiepileptic drugs (P < 0.05) were associated with total self-concept. We conclude that self-concept in teens with epilepsy is most strongly associated with Family Function. With the exception of current number of antiepileptic drugs used, epilepsy-specific factors are of minimal importance.     

Factors associated with generic and disease-specific quality of life in temporal lobe epilepsy

PURPOSE: We aimed at further elucidating the association between quality of life (QOL) and sociodemographic factors, clinical seizure factors, depression and anxiety in drug-resistant temporal lobe epilepsy (TLE). METHODS: We studied 106 consecutive adult right-handed patients (mean age 35.4 +/- 9.7; 50% males; IQ> or = 70) with drug-resistant unilateral (59% right) TLE (70% hippocampal sclerosis, 30% tumors or other lesions), who underwent a comprehensive non-invasive pre-surgical protocol. They completed the Beck Depression Inventory (BDI) and the State Form of the Spielberger State-Trait Anxiety Inventory (STAI). To measure QOL, we used both a generic instrument, the WHOQOL-100, and a disease-specific instrument, the 31-item quality of life in epilepsy (QOLIE-31). Multiple linear regression analysis was used to examine the relationship between each QOL domain and age, gender, education, side of TLE, duration of epilepsy, seizure frequency, and level of depression and anxiety. RESULTS: Severity of depressive symptoms was significantly associated with lower scores across most QOL domains. Depression was consistently the strongest predictor of lower scores on almost all QOL domains. Also, severity of anxiety symptoms was significantly associated with lower scores across many QOL domains. Independent significant relationships between QOL and sociodemographic or clinical epilepsy variables were limited in number and strength. CONCLUSIONS: Our findings suggest that QOL in TLE might be substantially affected by the presence and severity of depressive symptoms and, to a lesser degree, of anxiety symptoms. While clinical seizure variables had a weaker association with QOL, the absence of seizure-free patients might have obscured a relation between seizure frequency and QOL. Healthcare professionals should be aware of the significance of patients' emotional state and of the role it plays for their QOL. Adopting a biopsychosocial approach might be useful to address patients' needs.     

Quality of life in epilepsy and perception of seizures control

The individual affective-cognitive evaluations are important factors that control the way he feels the disease impact in his life. Then, the perception of seizure control is a more important factor to evaluate Quality of Life (QoL) than the illness characteristics, such as the severity, type, sickening period and seizure frequency. This study searched for the relationship among the subjective variables (perception of seizure control) and the illness characteristics to evaluate QoL. The sample consisted of 60 individuals with chronic epilepsy, aging 18 to 70 (M=37.05; SD=11.25), chosen at randon from the ambulatory of epilepsy - HC/UNICAMP, by the Questionnaire 65. The illness characteristics were not significant, except the seizures frequency, when associated to the impairment in QoL among controlled seizures and seizures with frequency higher than 10 per month (p=0.021). The perception of control was significantly associated to QoL (p=0.005).     

Seizure freedom reduces illness intrusiveness and improves quality of life in epilepsy

BACKGROUND: Chronic illnesses are associated with multiple stressors that compromise quality of life (QOL). Implicit in many of these stressors is the concept of illness intrusiveness: the disruption of lifestyles, activities, and interests due to the constraints imposed by chronic disease and its treatment. The purpose of this study was to examine illness intrusiveness and QOL in epilepsy in patients with different levels of seizure control. METHODS: Cross-sectional data were obtained and compared between two groups of patients categorized by presence of seizures: seizure freedom or continued seizures (N = 145). Standard instruments measured the following variables: illness intrusiveness, perceived personal control, subjective well-being, and disease specific QOL. RESULTS: Illness intrusiveness varied inversely and significantly with seizure control. Complete seizure freedom, whether achieved by pharmacological or surgical treatment, was associated with the lowest levels of illness intrusiveness. Seizure freedom was also associated with increased perceived control, positive affect, self-esteem and QOL in epilepsy. CONCLUSIONS: The most robust benefits of decreased illness intrusiveness in epilepsy occur when treatment leads to complete seizure control. Therefore every effort should be made by health care providers to achieve seizure freedom to reduce illness intrusiveness and improve QOL in epilepsy.     

Pregabalin as adjunctive therapy for partial epilepsy: An audit study in 96 patients from the South East of England

IntroductionPregabalin (PGB) was licensed in the EU in 2004 as an adjunctive therapy in partial epilepsy. It is also licensed for neuropathic pain and generalised anxiety.AimsTo identify the clinical usefulness and side effects of add-on PGB in out-patient epilepsy clinics.MethodsWe performed an audit on 96 consecutive patients (44 male) prescribed PGB for refractory epilepsy. Mean follow-up, for those who remained on PGB, was 23 months (range 12–39 months).ResultsFifty patients remained on PGB, 37 of whom reported clear improvement in seizure frequency. Among these 37 patients, 1 was seizure free for 15 months; 29 had a seizure reduction of >50%; and 7 improved by <50%. Eight patients reported a decrease in seizure severity without change in seizure frequency. Nine patients reported an incidental improvement in anxiety.Side effects were reported by 25 patients out of the 50 patients still on treatment: 12 reported drowsiness or tiredness, 8 weight gain, 7 dizziness, 2 headache, 2 cognitive side effects, 1 irritability, 1 itchiness, 1 anxiety, and 1 transient rash.Among the 46 patients who discontinued treatment, 9 had worsening of seizure frequency, 27 lack of efficacy and 9 intolerable side effects necessitating withdrawal (4 dizziness or drowsiness, 2 weight gain, 1 peripheral oedema, 1 pain in arms and legs, 1 irritability and cognitive side effects). One patient had a seizure related death (probably drowning) within 1 month of starting PGB.ConclusionPregabalin seems to be an effective and well-tolerated anti-epileptic drug when used as add-on treatment in patients with refractory partial epilepsy.     

The development of a seizure severity scale as an outcome measure in epilepsy

In controlled trials of antiepileptic drugs (AEDs) seizure frequency is often the only variable considered. With little prospect of improving assessment of AEDs, using seizure counts as the only end-point, there is a need for the development of new outcome measures. Clinical experience indicates that seizure severity is equally important to the patient and, by preventing seizure spread, AEDs can influence seizure severity without necessarily reducing seizure frequency. A scale capable of measuring seizure severity and change of severity attributable to treatment could be a useful additional outcome measure. Such a scale should exhibit the basic properties of validity and reliability. An easily administrable 16-point scale, containing 2 subscales--perception of control and ictal/post-ictal effects--has been developed. This scale has been tested on a patient population (n = 159) representative of that seen in trials of novel AEDs. Using standardised statistical methods, the scale has been shown to be both reliable and valid.     

The relationship between illness severity, sociodemographic factors, general self-concept, and illness-specific attitude in Swedish adolescents with epilepsy.

PURPOSE: The aim of this study was to describe the relationship between the epilepsy condition (illness severity), sociodemographic factors, general self-concept, and illness-specific attitude in adolescents with uncomplicated epilepsy. METHODS: Adolescents, aged 13-22, fulfilling criteria registered in four Swedish hospitals, answered questionnaires (n = 149). The instruments "I think I am" and "Sense of coherence" measured the patients' general self-concept. The "Child Attitude Toward Illness Scale" measured illness-specific attitude. A summary score (index) calculated from seizure frequency, seizure type, and antiepileptic drug (AED) with side effects measured "Illness Severity". RESULTS: Illness severity was significantly related to the participants' general self-concept, as well as to their attitude toward their condition; i.e. higher illness severity scores were correlated with lower sense of coherence (SOC), poorer self-esteem, and a more negative attitude towards the epilepsy condition. Females had more severe illness according to the Illness Severity Index, with almost 80% found in the moderate and high severity groups as compared to 63% of males in the moderate/high severity groups. CONCLUSIONS: It was concluded that the severity of the epilepsy condition was related to the adolescents' general self-concept and illness-specific attitude, but further research is needed to understand the causality of the relationship. The brief assessment of illness severity, constructed and used in this study should be addressed and developed further.     

Clinical efficacy of galvanic skin response biofeedback training in reducing seizures in adult epilepsy: a preliminary randomized controlled study

We investigated the effect of galvanic skin response (GSR) biofeedback training on seizure frequency in patients with treatment-resistant epilepsy. Eighteen patients with drug-refractory epilepsy were randomly assigned either to an active GSR biofeedback group (n = 10) or to a sham control biofeedback group (n = 8). Biofeedback training significantly reduced seizure frequency in the active biofeedback group (P = 0.017), but not the control group (P > 0.10). This was manifest as a significant between-group difference in seizure reduction (P 0.01). Furthermore, there was a correlation between degree of improvement in biofeedback performance and reduction of seizure frequency (rho = 0.736, P = 0.001), confirming that the effect of biofeedback treatment was related to physiological change. Our findings highlight the potential therapeutic value of GSR biofeedback in reducing seizure frequency in patients with drug-resistant epilepsy.