Displaying publications 61 - 80 of 101 in total

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  1. Tsai MH, Chan CK, Chang YC, Lin CH, Liou CW, Chang WN, et al.
    Front Neurol, 2018;9:515.
    PMID: 30034362 DOI: 10.3389/fneur.2018.00515
    Objective: Focal epilepsy is the most common subtype of epilepsies in which the influence of underlying genetic factors is emerging but remains largely uncharacterized. The purpose of this study is to determine the contribution of currently known disease-causing genes in a large cohort (n = 593) of common focal non-lesional epilepsy patients. Methods: The customized focal epilepsy gene panel (21 genes) was based on multiplex polymerase chain reaction (PCR) and sequenced by Illumina MiSeq platform. Results: Eleven variants (1.85%) were considered as pathogenic or likely pathogenic, including seven novel mutations. There were three SCN1A (p.Leu890Pro, p.Arg1636Ter, and p.Met1714Val), three PRRT2 (two p.Arg217Profs*8 and p.Leu298Pro), two CHRNA4 (p.Ser284Leu, p.Ile321Asn), one DEPDC5 (p.Val516Ter), one PCDH19 (p.Asp233Asn), and one SLC2A1 (p.Ser414Ter) variants. Additionally, 16 other rare variants were classified as unknown significance due to inconsistent phenotype or lack of segregation data. Conclusion: Currently known focal epilepsy genes only explained a very small subset of focal epilepsy patients. This indicates that the underlying genetic architecture of focal epilepsies is very heterogeneous and more novel genes are likely to be discovered. Our study highlights the usefulness, challenges and limitations of using the multi-gene panel as a diagnostic test in routine clinical practice in patients with focal epilepsy.
  2. Fong SL, Lim KS, Tan L, Aris T, Khalid RA, Ali RA, et al.
    Epilepsy Behav, 2019 08;97:206-211.
    PMID: 31252280 DOI: 10.1016/j.yebeh.2019.05.033
    INTRODUCTION: Prevalence studies of epilepsy in Asia revealed a prevalence ranging from 1.5 to 14.0 per 1000 among Asian populations. However, the prevalence of epilepsy in Malaysia is not available for comparison with other countries. This study aimed to translate and validate a Malay brief screening instruments for ascertainment of epilepsy.

    METHOD: We translated into Malay a brief screening instrument for ascertainment of epilepsy designed and validated by Ottman et al., using the three-stage cross-cultural adaptation process developed by the International Quality of Life Assessment (IQOLA) project. We then administered the translated questionnaire via online survey to 162 cases (patients with epilepsy under follow-up care at the neurology clinic in University of Malaya Medical Centre, Kuala Lumpur) and 146 controls with no known history of epilepsy for validation.

    RESULTS: Applying the most liberal definition for a positive screen, we obtained a sensitivity of 96.3% (95% confidence interval [CI]: 91.8-98.5%), with a specificity of 66.4% (95% CI: 58.1-73.0%) and positive predictive value (PPV) of 2.0%. The most stringent definition for a positive screen (only epilepsy) resulted in a sensitivity of 97.4% (95% CI: 62.0-72.6%), specificity of 98.6% (95% CI: 94.6-99.7%), and PPV of 26.6%. Narrowing the definition of a positive screen decreased sensitivity but improved PPVs. When compared to the original English questionnaire, the sensitivities were similar for all four definitions of a positive screen.

    CONCLUSION: This is the first validated epilepsy screening questionnaire in the Malay language and represents a useful tool for the ascertainment of epilepsy in population-based studies.

  3. Lim KS, Fong SL, Thuy Le MA, Ahmad Bazir S, Narayanan V, Ismail N, et al.
    Epilepsy Res, 2020 05;162:106298.
    PMID: 32172144 DOI: 10.1016/j.eplepsyres.2020.106298
    INTRODUCTION: Video-EEG monitoring is one of the key investigations in epilepsy pre-surgical evaluation but limited by cost. This study aimed to determine the efficacy and safety of a 48-hour (3-day) video EEG monitoring, with rapid pre-monitoring antiepileptic drugs withdrawal.

    MATERIAL AND METHODS: This is a retrospective study of epilepsy cases with VEM performed in University Malaya Medical Center (UMMC), Kuala Lumpur, from January 2012 till August 2016.

    RESULTS: A total of 137 cases were included. The mean age was 34.5 years old (range 15-62) and 76 (55.8 %) were male. On the first 24 -h of recording (D1), 81 cases (59.1 %) had seizure occurrence, and 109 (79.6 %) by day 2 (D2). One-hundred and nine VEMs (79.6 %) were diagnostic, in guiding surgical decision or further investigations. Of these, 21 had less than 2 seizures recorded in the first 48 h but were considered as diagnostic because of concordant interictal ± ictal activities, or a diagnosis such as psychogenic non-epileptic seizure was made. Twenty-eight patients had extension of VEM for another 24-48 h, and 11 developed seizures during the extension period. Extra-temporal lobe epilepsy and seizure frequency were significant predictors for diagnostic 48 -h VEM. Three patients developed complications, including status epilepticus required anaesthetic agents (1), seizure clusters (2) with postictal psychosis or dysphasia, and all recovered subsequently.

    CONCLUSIONS: 48-h video EEG monitoring is cost-effective in resource limited setting.

  4. Chia ZJ, Lim KS, Lee SR, Lai WW, Chan PQ, Ng SJ, et al.
    Epilepsy Behav, 2021 Apr;117:107798.
    PMID: 33582391 DOI: 10.1016/j.yebeh.2021.107798
    BACKGROUND: In epilepsy stigma, certain perceptions are culturally dependent and greatly influence a person's attitudes. Hence, we aimed to explore the perceptions associated with attitudes toward epilepsy in various urban subpopulations.

    METHOD: This is a mixed-method study employing the Public Attitude Toward Epilepsy (PATE) scale as the quantitative measure, followed by a semi-structured interview. The qualitative data were then counted and analyzed concurrently with the quantitative data.

    RESULT: A total of 410 respondents (104 people with epilepsy [PWE]; 104 family members [FM]; 100 medical students [MS]; 102 public [Pb]) aged 37 years (IQR 23-55) were recruited. They were mostly female (57.3%), Chinese (52.0%), and highly educated (63.7%). The attitudes toward epilepsy among medical students are the best, followed by the PWE and their family members, and the worst among the public. The qualitative results revealed 4 main themes, which were "general social values", "epilepsy severity and control", "PWE's abilities", and "harms and burdens to the respondents and others". A two-dimensional perception model was constructed based on these themes, which consisted of general-personal and universal-specific dimensions. Generally, the PWE/FM subgroup focused more on PWE's abilities, whereas the MS/Pb subgroup more on general social values, and harms and burden. In the education aspect, most attitudes were related to the epilepsy severity and PWE's abilities, whereas in employment, the main consideration was the PWE's abilities. Burden to life and concern about inheritance were major considerations in the marital relationship. Those with positive attitudes tend to highlight the importance of general social values, while negative attitudes associated more with epilepsy severity. In general domain, general social values were the main considering factor but in personal domain, most participants will consider epilepsy severity and control, harms and burden to themselves.

    CONCLUSION: The perceptions underlying attitudes toward epilepsy were complex and varied between subpopulations, attitude levels, domains, and aspects of life. (304 words).

  5. Haerian BS, Lim KS, Tan HJ, Wong CP, Wong SW, Tan CT, et al.
    Synapse, 2011 Oct;65(10):1073-9.
    PMID: 21465568 DOI: 10.1002/syn.20939
    The SYN2 rs3773364 A>G polymorphism has been proposed to be involved in susceptibility to epilepsy, but research results have been inconclusive. The aim of this study was to investigate the association between the SYN2 rs3773364 A>G polymorphism and susceptibility against epilepsy in a case-control study and a meta-analysis.
  6. Chong HY, Lim KS, Fong SL, Shabaruddin FH, Dahlui M, Mei Lai PS, et al.
    Br J Clin Pharmacol, 2023 Nov;89(11):3340-3351.
    PMID: 37294011 DOI: 10.1111/bcp.15818
    AIMS: Despite the availability of newer antiseizure medications, carbamazepine (CBZ) remains the gold standard. However, patients of Asian ancestry are susceptible to CBZ-related severe cutaneous adverse reactions. Universal HLA-B*15:02 screening is a promising intervention to address this. With the increasing recognition of integrating real-world evidence in economic evaluations, the cost-effectiveness of universal HLA-B*15:02 screening was assessed using available real-world data in Malaysia.

    METHODS: A hybrid model of a decision tree and Markov model was developed to evaluate 3 strategies for treating newly diagnosed epilepsy among adults: (i) CBZ initiation without HLA-B*15:02 screening (current practice); (ii) universal HLA-B*15:02 screening prior to CBZ initiation; and (iii) alternative prescribing without HLA-B*15:02 screening. The model was populated with real-world inputs derived from the Malaysian population. From a societal perspective, base-case analysis and sensitivity analyses estimated the costs and outcomes over a lifetime. Incremental cost-effectiveness ratios were calculated.

    RESULTS: In the base-cases analysis, universal HLA-B*15:02 screening yielded the lowest total costs and the highest total quality-adjusted life years (QALYs) gained. Compared with current practice, universal screening was less costly by USD100 and more effective by QALYs increase of 0.1306, while alternative prescribing resulted in 0.1383 QALYs loss at additional costs of USD332. The highest seizure remission rate (56%) was estimated for universal HLA-B*15:02 screening vs. current practice (54%) and alternative prescribing (48%).

    CONCLUSION: Our study suggests that universal HLA-B*15:02 screening is a cost-effective intervention in Malaysia. With the demonstrated value of real-world evidence in economic evaluations, more relevant standardization efforts should be emphasized to better inform decision-making.

  7. Wo SW, Lai PS, Ong LC, Low WY, Lim KS, Tay CG, et al.
    Epilepsy Behav, 2015 Apr;45:118-23.
    PMID: 25819800 DOI: 10.1016/j.yebeh.2015.02.037
    We aimed to cross-culturally adapt the parent-proxy Health-Related Quality of Life Measure for Children with Epilepsy (CHEQOL-25) into Malay and to determine its validity and reliability among parents of children with epilepsy in Malaysia.
  8. Audrey C, Lim KS, Ahmad Zaki R, Fong SL, Chan CY, Sathis Kumar T, et al.
    Epilepsy Res, 2022 Nov;187:107033.
    PMID: 36274423 DOI: 10.1016/j.eplepsyres.2022.107033
    OBJECTIVES: Prevalence of seizures in brain tumors vary substantially between studies even with similar histopathological types. We aimed to identify the seizure prevalence of the commonest types of brain tumors.

    METHODS: Systematic computerized search of PubMed, Embase, and Web of Science were performed. The meta-analysis of pooled prevalence and 95 % confidence interval (CI) for tumor-related seizures were calculated by using a random effect model. Based on the 2014 epilepsy definition, a mean seizure prevalence of 60 % is used to indicate high seizure prevalence in this study.

    RESULTS: 74 studies that reported seizure prevalence with 23,116 patients were included in this meta-analysis. These tumors has higher seizure incidence rate (at least 60 %) with pooled prevalence of 63 % for adult with low-grade astrocytoma (95 % CI: 57-68 %), 65 % for oligodendroglioma (95% CI: 57-72 %), 72 % for oligoastrocytoma (95 % CI: 67-77 %), 81 % for ganglioglioma (95 % CI: 66-97 %) and 94 % for DNET (94 % CI: 83-100 %).

    CONCLUSION: This study highlights the type of brain tumors that carry a high seizure prevalence. Screening for subtle seizures and early management of seizures may be beneficial in patients with low-grade astrocytoma (adult), oligodendroglioma, oligoastrocytoma, ganglioglioma or DNET brain tumor.

  9. Lim KS, Fong SL, Yu X, Lim YH, Wong KY, Lai ST, et al.
    Epilepsy Behav, 2024 Jun;155:109778.
    PMID: 38636139 DOI: 10.1016/j.yebeh.2024.109778
    INTRODUCTION: Depression and anxiety are prevalent in epilepsy patients, but psychiatric or psychological services may not be accessible to all patients. This study aimed to determine the effectiveness of the 20-minute mindful breathing on the psychological well-being of PWE using an instructional video.

    METHOD: This was a pilot, assessor-blinded, randomized controlled trial. The intervention group received a guided video and was briefed to perform the exercise twice a week for two weeks while the waitlist control group only received the video upon completion of the study. The subjects were assessed at three-time points (T0: Baseline, T1: 2 weeks after the intervention, T2: 4 weeks after intervention), using the Neurological Disorders Depression Index (NDDI-E), General Anxiety Disorder (GAD-7), Quality of Life in Epilepsy Inventory (QOLIE-31) and Mindfulness Attention Awareness Scale (MAAS).

    RESULTS: Twenty patients were recruited, with 10 in the intervention and waitlist-control groups. Compared with the waitlist-control group, participants in the intervention group showed significant improvement in NDDI-E at T1 (p = 0.022) but not at T2 (p = 0.056) and greater improvement in GAD-7 at T1 and T2 but not statistically significant. The QOLIE-31 overall score in the intervention group has significantly improved at T1 (p = 0.036) and T2 (p = 0.031) compared to the waitlist-control group. For MAAS, the intervention group also had an increased score at T2 (p = 0.025).

    CONCLUSION: The 20-minute mindfulness breathing exercise has an immediate effect in improving depression and quality of life among people with epilepsy.

  10. Yow HY, Lim KS, Fong SL, Lim AJ, Chow CT, Azizah Ariffin MA, et al.
    Seizure, 2025 Feb 18;127:16-24.
    PMID: 40022772 DOI: 10.1016/j.seizure.2025.02.009
    OBJECTIVES: Despite intramuscular (IM) midazolam being recommended as a primary treatment for status epilepticus (SE), its usage in Malaysian prehospital settings remains suboptimal. This study aimed to explore the awareness, practice, and barriers among healthcare professionals regarding the use of IM midazolam as a rescue medication for prehospital SE in Malaysia and provide a consensus for its implementation.

    METHODS: An online cross-sectional survey and modified Delphi study was conducted among healthcare professionals across Malaysia from 22 March to 31 August 2024. A modified Delphi process was used to develop a consensus from existing literature, with two Delphi rounds assessing the relevance, clarity, and importance of each question. Consensus was achieved if 90 % or more participants agreed.

    RESULTS: Among 137 responses, 89.1 % of healthcare professionals were aware of rescue medications. However, only 62.0 % recognized the superior absorption and bioavailability of IM midazolam over rectal diazepam, and 78.1 % were aware of its efficacy in terminating seizures. Of those (69.3 %) involved in SE management, 29.5 % (n = 28) were engaged in prehospital management of SE. Only 35.7 % (n = 10) reported that prehospital personnel were permitted to use IM midazolam for SE management and all required physician endorsement. Notably, 78.9 % of participants reported that 25 % or fewer patients with SE were treated with IM midazolam. The main barriers include unfamiliarity (64.2 %) and lack of protocols (62.1 %). A strong consensus was reached on the recommendation of IM midazolam as a first-line treatment for SE management.

    CONCLUSION: While Malaysian healthcare professionals are aware of rescue medications for prehospital seizure emergencies, they lack an understanding of IM midazolam's benefits. Key barriers include unfamiliarity and lack of protocols despite strong consensus on its first-line use.

  11. Ching WH, Soon MY, Yee JL, Chia ZJ, Lim KS, Fong SL, et al.
    Epilepsy Behav, 2025 Feb;163:110176.
    PMID: 39662324 DOI: 10.1016/j.yebeh.2024.110176
    OBJECTIVE: Self-stigma means internalizing negative beliefs and attitudes associated with stigmatized identity. This study aimed to translate and validate the Malay and Chinese versions of the Epilepsy Self-Stigma Scale (ESSS).

    METHODS: The Epilepsy Self-Stigma Scale was translated into the Malay (ESSS-M) and Chinese versions (ESSS-C) according to standard principles and were tested in 100 Malay and 100 Chinese-speaking people with epilepsy (PWE) respectively. Psychometric evaluations were done based on equal item variance, convergent and discriminant validity, construct validity and reliability. Correlation analyses were carried out between the ESSS and the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) and Generalized Anxiety Disorder-7 (GAD-7).

    RESULTS: For the ESSS-M, 100 Malay-speaking PWE with a mean age of 42.25 years (±15.18) were recruited. Exploratory factor analysis identified eight items loaded on three factors: "Internalization of stigma", "Societal incomprehension", and "Confidentiality". However, item 1 was loaded under a different component from the initial paper, conceptualized as confidentiality. For the ESSS-C, 100 Chinese-speaking participants with a mean age of 41.07 years (±15.57). Exploratory factor analysis identified three loading factors similar to the original scale: "Internalization of stigma", "Societal incomprehension", and "Confidentiality". Both ESSS-M and ESSS-C scales showed significant correlations with NDDI-E and GAD-7 scores, showcasing substantial construct validity. The Cronbach's alpha values were α = 0.822 for the ESSS-M and α = 0.831 for the ESSS-C.

    CONCLUSION: Both the ESSS-M and ESSS-C were reliable and valid for measuring epilepsy self-stigma among the Malay- and Chinese-speaking PWE in Malaysia.

  12. Fong SL, Shauna A, Lim KS, Ng CG, Yu X, Lai ST, et al.
    Epilepsy Behav, 2025 Feb;163:110196.
    PMID: 39662320 DOI: 10.1016/j.yebeh.2024.110196
    INTRODUCTION: Psychiatric comorbidities such as depression and anxiety disorders are highly prevalent among people with epilepsy (PWE). These two co-occurring chronic illnesses could lead to double stigma and negatively impact every aspect of psychiatric and epilepsy care for PWE, especially in help-seeking behavior. We aimed to identify the socio-demographic and clinical factors contributing to reluctance to be referred to a psychiatrist among PWE.

    METHODS: A prospective cross-sectional study was conducted at a tertiary teaching hospital in Kuala Lumpur, Malaysia. Psychological screening was done using the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) and General Anxiety Disorder (GAD-7) questionnaire. Patients screened positive were offered psychiatric referrals and given an early psychiatric clinic appointment if they agreed to the referral. The reasons for those who refused the referral were noted.

    RESULTS: Out of 585 patients, 91 (15.5 %) were screened positive for depression and/or anxiety. Eighteen patients were excluded from the study due to pre-existing psychiatric disorders. Of the remaining 73 patients, 23 (31.5 %) agreed to be referred to a psychiatrist. Only 17 (23.3 %) attended the psychiatrist appointment. A total of 11 (15.1 %) and one (1.4 %) patients were subsequently diagnosed with major depressive disorder and generalized anxiety disorder, respectively. Another 50 (68.5 %) patients were not referred to a psychiatrist, predominantly (n = 43, 58.9 %) due to reluctance to be referred to a psychiatrist. The reasons included avoidance of referral likely related to stigma (n = 22, 51.2 %), self-reliance, family and caregivers' disapproval of referral, and logistic difficulty. The mean scores in NDDI-E and GAD-7 in the referred group were higher than the not-referred group but not statistically significant (NDDI-E: 17.8 ± 3.6 vs. 16.5 ± 2.5, p = 0.072; GAD-7: 12.4 ± 5.70 vs. 9.8 ± 5.4, p = 0.061).

    CONCLUSION: A significant number of PWE were reluctant to receive psychiatric referrals predominantly due to self-avoidance or family and caregiver disapproval of referral likely related to stigma. An integrated epilepsy care management model is recommended.

  13. Yee JL, Ang BH, Soon MY, Tan JH, Tang XR, Maizura Binti Ibrahim NL, et al.
    Epilepsy Behav, 2026 Dec;185:111256.
    PMID: 42697051 DOI: 10.1016/j.yebeh.2026.111256
    INTRODUCTION: Self-stigma is increasingly recognised as an important psychosocial burden among people with epilepsy (PWE), particularly among those experiencing depressive and anxiety symptoms. This study examined the association between self-stigma, psychological symptoms, self-esteem, work motivation, and quality of life in PWE.

    METHODS: In this cross-sectional study, adults with epilepsy were assessed using the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E), Generalised Anxiety Disorder-7 (GAD-7), Epilepsy Self-Stigma Scale (ESSS), Rosenberg Self-Esteem Scale (RSES), Work Extrinsic and Intrinsic Motivation Scale (WEIMS), and Quality of Life in Epilepsy Inventory-31 (QOLIE-31). Participants screening positive for depression and/or severe anxiety symptoms were offered psychiatric referral. Group comparisons and Pearson correlation analyses were performed.

    RESULTS: Of 207 patients, 34 (16.4%) screened positive for depression and/or severe anxiety symptoms. Compared with those screened negative, they had poorer seizure control (76.5% vs. 56.1%,p = 0.027), higher self-stigma (22.24 ± 4.09 vs. 18.49 ± 4.08,p 

  14. Kumar TS, Afnan WM, Chan CY, Audrey C, Fong SL, Rajandram R, et al.
    J Neurooncol, 2022 Sep;159(3):657-664.
    PMID: 36036318 DOI: 10.1007/s11060-022-04108-2
    PURPOSE: Seizures are a common presenting symptom among patients with low- and high-grade glioma. However, the impact and inter-relationship between the presence of seizures, anti-seizure medication (ASM) and survival are unclear. We retrospectively analyzed the incidence of seizures and identified the pattern and relationship of anti-seizure medication on survival in our cohort of patients with glioma.

    METHODS: We evaluated all glioma patients who underwent treatment at the University of Malaya Medical Centre (UMMC) between 2008 and 2020. Demographic and clinical data of seizures and pattern of ASM administration in comparison to overall survival were analyzed.

    RESULTS: A total of 235 patients were studied, with a minimum of one year clinical follow-up post-treatment. The median survival for low-grade glioma was 38 months whereas high-grade glioma was 15 months. One-third of our glioma patients (n = 74) presented with seizures. All patients with seizures and a further 31% of patients without seizures were started on anti-seizure medication preoperatively. Seizure and Levetiracetam (LEV) were significantly associated with OS on univariate analysis. However, only LEV (HR 0.49; 95% CI 0.23-0.87; p=0.02) was significantly associated with improving overall survival (OS) on multivariate analysis. Once ASM was adjusted for relevant factors and each other, LEV was associated with improved survival in all grade gliomas (HR 0.52; 95% CI 0.31-0.88; p=0.02) and specifically high-grade gliomas (HR 0.53; 95% CI 0.30-0.94; p=0.03).

    CONCLUSIONS: Pre-operative seizures among patients with glioma indicated a better overall prognosis. The administration of ASM, specifically LEV was associated with a  significant survival advantage in our retrospective cohort of patients.

  15. Tan SB, Ching HC, Chia YL, Yee A, Ng CG, Hasan MSB, et al.
    Am J Hosp Palliat Care, 2020 Aug;37(8):606-612.
    PMID: 31854193 DOI: 10.1177/1049909119894507
    Informal caregivers are at risk of being overwhelmed by various sources of suffering while caring for their significant others. It is, therefore, important for caregivers to take care of themselves. In the self-care context, mindfulness has the potential to reduce caregiver suffering. We studied the effect of a single session of 20-minute mindful breathing on the perceived level of suffering, together with the changes in bispectral index score (BIS) among palliative care informal caregivers. This was a randomized controlled study conducted at the University of Malaya Medical Centre, Malaysia. Forty adult palliative care informal caregivers were recruited and randomly assigned to either 20-minute mindful breathing or 20-minute supportive listening. The changes in perceived suffering and BIS were measured preintervention and postintervention. The reduction in suffering score in the intervention group was significantly more than the control group at minute 20 (U = 124.0, n1 = n2 = 20, mean rank1 = 24.30, mean rank2 = 16.70, z = -2.095, P = .036). The reduction in BIS in the intervention group was also significantly greater than the control group at minute 20 (U = 19.5, n1 = n2 = 20, mean rank1 = 29.52, mean rank2 = 11.48, z = -4.900, P < .0001). Twenty minutes of mindful breathing was more efficacious than 20 minutes of supportive listening in the reduction in suffering among palliative care informal caregivers.
  16. Fong SL, Lim KS, Tan L, Zainuddin NH, Ho JH, Chia ZJ, et al.
    Epilepsy Res, 2021 02;170:106551.
    PMID: 33440303 DOI: 10.1016/j.eplepsyres.2021.106551
    INTRODUCTION: The lifetime prevalence of epilepsy varies greatly from 1.5-14.0 per 1000 persons among the Asian countries. We aim to study the prevalence of epilepsy in Malaysia to have a better insight into the burden of disease in the country.

    METHODS: A population-based door-to-door survey was carried out throughout the country, using questionnaire for brief screening in ascertainment of epilepsy, using a questionnaire and its validated multilingual versions. Respondents who were screened positive underwent second-stage diagnostic phone interview by neurologists/ research assistants.

    RESULTS: A total 16, 686 respondents participated in the survey and 646 (3.8 %) respondents were screened positive during the first stage interview. A total of 185 consented for second stage diagnostic interview and 118 (63.8 %) respondents were contacted successfully for the second stage diagnostic phone interview, of which 17 (14.4 %) respondents were diagnosed to have epilepsy. An additional 68 (57.6 %) respondents had febrile seizures only. After applying a weighting factor to each respondent to adjust for non-response and for the varying probabilities of selection, the adjusted lifetime epilepsy prevalence was 7.8 in 1000 population, and the adjusted prevalence for active epilepsy was 4.2 in 1000 population in Malaysia.

    CONCLUSION: The prevalence of lifetime epilepsy in Malaysia is 7.8 per 1000 persons.

  17. Mullan KA, Anderson A, Shi YW, Ding JH, Ng CC, Chen Z, et al.
    Epilepsia, 2022 Feb 16.
    PMID: 35170024 DOI: 10.1111/epi.17182
    OBJECTIVE: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous adverse drug reactions. Antiseizure medications (ASMs) with aromatic ring structure, including carbamazepine, are among the most common culprits. Screening for human leukocyte antigen (HLA) allele HLA-B*15:02 is recommended prior to initiating treatment with carbamazepine in Asians, but this allele has low positive predictive value.

    METHODS: We performed whole genome sequencing and analyzed 6 199 696 common variants among 113 aromatic ASM-induced SJS/TEN cases and 84 tolerant controls of Han Chinese ethnicity.

    RESULTS: In the primary analysis, nine variants reached genome-wide significance (p 

  18. Sha'ari HM, Haerian BS, Baum L, Saruwatari J, Tan HJ, Rafia MH, et al.
    Pharmacogenomics, 2014 Mar;15(4):459-66.
    PMID: 24624913 DOI: 10.2217/pgs.13.239
    To examine the relevance of ABCC2 polymorphisms to drug responsiveness in epilepsy cohorts from the Asia Pacific region.
  19. Haerian BS, Lim KS, Tan HJ, Mohamed EH, Tan CT, Raymond AA, et al.
    Epileptic Disord, 2011 Mar;13(1):65-75.
    PMID: 21388909 DOI: 10.1684/epd.2011.0419
    Over-expression of P-glycoprotein, encoded by the ABCB1 gene, is proposed to be involved in resistance to antiepileptic drugs in about 30% of patients with epilepsy. Here, we investigated the possible association between ABCB1 polymorphisms and sodium valproate (VPA) treatment in Malaysian epilepsy patients. Genotypes were assessed in 249 drug-resistant and 256 drug-responsive Malaysian patients for C1236T, G2677T/A, and C 5T polymorphisms in the ABCB1 gene. No genotypes, alleles, or haplotypes were associated with the response to VPA in either the overall group or Chinese, Indian, and Malay subgroups. Our data suggest that C1236T, G2677T/A, and C3435T polymorphisms in the ABCB1 gene do not contribute to the response to VPA in patients with epilepsy.
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