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The complexity of achieving anticoagulation control in the face of warfarin-phenytoin interaction: an Asian case report

Hassan Y, Awaisu A, Aziz NA, Ismail O

Pharm World Sci, 2005 Feb;27(1):16-9.
PMID: 15861930

Phenytoin has been reported to have major interactions with warfarin. Phenytoin induces warfarin's metabolism. However, there are many case reports which provide conflicting conclusions. Here, we report a case of a 65-year-old man with mechanical heart valve on chronic warfarin therapy who experienced persistent fluctuations of INR and bleeding secondary to probable warfarin-phenytoin interactions. The patient's anticoagulation clinic visits prior to hospitalization were thoroughly evaluated and we continued to follow-up the case for 3 months post-hospitalization. The reported interaction could be reasonably explained from the chronology of events and the pattern of INR fluctuations whenever phenytoin was either added or discontinued from his drug regimen.

Matched MeSH terms: Seizures/drug therapy
Employability among people with uncontrolled seizures: An interpretative phenomenological approach

Wo MC, Lim KS, Choo WY, Tan CT

Epilepsy Behav, 2015 Apr;45:21-30.
PMID: 25794681 DOI: 10.1016/j.yebeh.2015.02.016

This study aimed to explore positive and negative factors affecting the employability in patients with uncontrolled seizures.

Matched MeSH terms: Seizures/psychology*
Childhood cerebral lupus in an Oriental population

Haji Muhammad Ismail Hussain I, Loh WF, Sofiah A

Brain Dev, 1999 Jun;21(4):229-35.
PMID: 10392744

In a cross-sectional study of 24 Oriental children with systemic lupus erythematosus (SLE) with a mean age of 11.25 years, 75% were found to have clinical and neurophysiological evidence of cerebral lupus. Seizures were the most common manifestation affecting 11 (61%) of the cases, followed by psychosis in five (27.7%), encephalopathy in five (27.7%), headaches in five (27.7%), personality changes in four (22.2%), stroke in three (16.6%), movement disorders in three (16.6%) and myelitis in one child (5.5%). Four children had cerebral lupus as the presenting manifestation of SLE. Twenty-one children had an electroencephalogram (EEG) of which 11 were normal. Abnormalities detected in the rest included focal sharps, slowing of background and electrodecremental changes. There was a poor correlation of EEG with the clinical presentation. Sixteen children with cerebral lupus had a computed tomogram (CT) of which three were normal. The commonest abnormality was cerebral atrophy with or without infarcts. Only four of the cases had lupus anticoagulant but compliment was reduced in 13. Sixteen of the cases also had renal involvement. Treatment was generally with steroids with only two patients receiving cyclophosphamide for cerebral relapse. Eight children (44%) made a full recovery. Learning disability was the most frequent sequelae affecting one-third of children seen at a 1-year follow up. Four (22%) had epilepsy, two (11%) had motor deficits and one child had optic atrophy. One child died of cerebral haemorrhage during a hypertensive crisis.

Matched MeSH terms: Seizures/complications
Fulltext Parental response and understanding towards febrile convulsion

Ling SG

Med J Malaysia, 2000 Dec;55(4):419-23.
PMID: 11221152

A questionnaire survey was conducted on parents of 58 patients admitted with febrile convulsion (FC) over a 4 month period to the University of Malaya Medical Centre, Kuala Lumpur to determine parental response towards febrile convulsion in their child and their understanding of home management of FC.
Results: The majority of parents (93%) were frightened or were in a panic state of witnessing FC in their child. Most (77.6%) of them were able to bring their child to medical attention within 30 minutes, with delays attributed to transport problems. Parental understanding on FC was deficient, particularly with regard to home management of acute seizures. The parents’ main source of information was friends and relatives.
Conclusions: Urgent intervention to counsel and allay fears of parents who have just witnessed an acute FC in their child is required. More effort must be made to educate parents about FC, with particular reference to home management of seizures.

Matched MeSH terms: Seizures, Febrile/therapy*
Fulltext Parents' views of lumbar puncture in children with febrile seizures

Deng CT, Zulkifli HI, Azizi BH

Med J Malaysia, 1994 Sep;49(3):263-8.
PMID: 7845277

A study was carried out to ascertain the views of parents regarding the performance of lumbar punctures on their children admitted for febrile seizures. One hundred and seventeen (117) children with febrile seizures were recruited over nine months. Either one of the parents was interviewed a day after admission. In most cases, this was usually the mother. The ethnic groups of the patients were Malays (62.4%), Indians (26.5%), Chinese (8.5%) and others (2.6%). Lumbar punctures were requested by the doctor in attendance in only 28 (23.9%) patients This showed that the rate of request for lumbar punctures in febrile seizures was low. Parents of eight of them refused. The main reasons for the refusal were: fears that the child might be paralysed, advice from relatives and fear that the child might die from the procedure, or might find it too painful. All the parents who refused were Malays. A lumbar puncture was also more likely to be refused in a girl. Those who consented to lumbar puncture did so because they wanted the doctor to get to the diagnosis. Another reason given was that it might be therapeutic. Parents whose children did not require a lumbar puncture also thought that lumbar puncture may cause paralysis. The main sources of information on lumbar punctures for the parents were their relatives and/or friends. In only 85% of the cases were the reasons for the lumbar puncture explained to the parent. In 71.4% of the time the explanation was done by the medical officer, and in only 4.8% of the time was the consultant involved.(ABSTRACT TRUNCATED AT 250 WORDS)

Matched MeSH terms: Seizures, Febrile/etiology*
Fulltext Tuberous sclerosis complex: a review with a study of eight cases

Malik AS, Hussin ZA, Shriwas SR, Kasim ZM

Med J Malaysia, 1994 Dec;49(4):375-84.
PMID: 7674974

This paper reviews the subject of tuberous sclerosis complex and presents data in eight cases of this condition, admitted to Hospital Universiti Sains Malaysia over a period of 8.5 years. The average age at presentation was 53 months. Seizures were the most common presenting feature. Male to female ratio was 3:1. Family history was present in four patients. All of the patients had one or more skin lesions. Six of them had retinal in six patients. Two patients had renal angiomyolipomas. A high index of hamartomas. Cardiac tumours were found in two patients. Multiple subependymal hamartomas were detected in six patients. Two patients had renal angiomyolipomas. A high index of suspicion and a detailed physical examination is required to diagnose this rare disorder.

Matched MeSH terms: Seizures/complications*
Fulltext Parental reactions to febrile seizures in Malaysian children

Deng CT, Zulkifli HI, Azizi BH

Med J Malaysia, 1996 Dec;51(4):462-8.
PMID: 10968035

The reactions of 117 parents to the febrile seizure experienced by their children; and their fears and worries were investigated. A standard questionnaire was used and clinical information was abstracted from the notes. In 88.9% of the cases, the adult present at the seizure was one of the parents usually the mother. Most of the parents (66.7%) did tepid sponging to bring the fever down but a third tried to open the clenched teeth of the child. The adults present placed the child supine in 62.9%, on the side in 9.5% and prone in 6.0%. Over half of the parents brought the child to a private clinic first before bringing to hospital. A fifth of the children were given antipyretics by the parent or the doctor and an anticonvulsant was given in 7.7% of cases. Interestingly, in 12% of children traditional treatment was given for the seizure. Three quarters of the parents knew that the febrile seizure was caused by high fever (which we have taken as the correct knowledge of febrile seizure). However "ghosts" and "spirits" were blamed as the cause of the seizure by 7% of parents. Factors significantly associated with correct knowledge were higher parental education and higher family income. The most common fear expressed was that the child might be dead or might die from the seizure (70.9%). Fear of death was associated with low paternal education. We concluded that the majority of our parents had reacted appropriately to a febrile seizure and their knowledge of the cause of febrile seizure was generally correct. Their fears and worries were similar to those elsewhere. However, traditional beliefs and practices may have to be taken into consideration during counselling.

Matched MeSH terms: Seizures, Febrile/etiology*
Fulltext Depressant action of Averrhoa carambola

Muir CK, Chan KL

Med J Malaysia, 1980 Mar;34(3):279-80.
PMID: 7191048

The presence, in the fruit of Averrhoa carambola (star fruit), of a depressant agent with properties similar to those of tranquilizers was demonstrated.

Matched MeSH terms: Seizures/chemically induced
Fulltext Acute disseminated encephalomyelitis (ADEM) presenting with seizures secondary to anti-tetanus toxin vaccination

Hamidon BB, Raymond AA

Med J Malaysia, 2003 Dec;58(5):780-2.
PMID: 15190671

Acute disseminated encephalomyelitis (ADEM) is an inflammatory demyelinating disease of the central nervous system (CNS) that is known to occur spontaneously in association with specific and non-specific viral illnesses and after vaccination against various pathogens. Although it is often a self-limited monophasic illness, the fatality rate is estimated to be as high as 20%, and many patients suffer residual neurologic impairment 1. The diagnosis is mainly based on clinical and radiological findings. The clinical presentation varies from merely, an asymptomatic condition to loss of consciousness, seizures, ataxia, optic neuropathy, cranial nerve palsies, and motor dysfunction. MRI of the brain is the single most important diagnostic radiological investigation and can facilitate early diagnosis and prompt treatment. This case report describes a patient with ADEM presenting with only seizures after vaccination with anti-tetanus toxin.

Matched MeSH terms: Seizures/etiology*
Neurocysticercosis in children presenting with afebrile seizure: clinical profile, imaging and serodiagnosis

Sahu PS, Seepana J, Padela S, Sahu AK, Subbarayudu S, Barua A

Rev Inst Med Trop Sao Paulo, 2014 6 1;56(3):253-8.
PMID: 24879004

Neurocysticercosis (NCC) is one of the major causes of childhood seizures in developing countries including India and Latin America. In this study neurological pediatric cases presenting with afebrile seizures were screened for anti-Cysticercus antibodies (IgG) in their sera in order to estimate the possible burden of cysticercal etiology. The study included a total of 61 pediatric afebrile seizure subjects (aged one to 15 years old); there was a male predominance. All the sera were tested using a pre-evaluated commercially procured IgG-ELISA kit (UB-Magiwell Cysticercosis Kit ™). Anti-Cysticercus antibody in serum was positive in 23 of 61 (37.7%) cases. The majority of cases with a positive ELISA test presented with generalized seizure (52.17%), followed by complex partial seizure (26.08%), and simple partial seizure (21.73%). Headaches were the major complaint (73.91%). Other presentations were vomiting (47.82%), pallor (34.78%), altered sensorium (26.08%), and muscle weakness (13.04%). There was one hemiparesis case diagnosed to be NCC. In this study one child without any significant findings on imaging was also found to be positive by serology. There was a statistically significant association found between the cases with multiple lesions on the brain and the ELISA-positivity (p = 0.017). Overall positivity of the ELISA showed a potential cysticercal etiology. Hence, neurocysticercosis should be suspected in every child presenting with afebrile seizure especially with a radio-imaging supportive diagnosis in tropical developing countries or areas endemic for taeniasis/cysticercosis.

Matched MeSH terms: Seizures, Febrile/parasitology*
DE WITT GF,+DEWITT GF: ACTIVITY OF GLUTAMIC OXALACETIC TRANSAMINASE IN THE CEREBROSPINAL FLUID IN NEUROLOGICAL DISEASES

CHING CK

Med J Malaysia, 1963 Sep;18:8-12.
PMID: 14064302
Matched MeSH terms: Seizures*
Fulltext Cost of management of adverse events of pertussis vaccine

Siti Haniza, M., Syed Aljunid, Haniza, M.A.

Malaysian Journal of Public Health Medicine, 2010;10(1):47-56.
MyJurnal

Whole-cell Pertussis (wcPertussis) vaccines combined with diphtheria and tetanus toxoids are effective in preventing clinical pertussis. The study aimed at determining the cost of managing fever and convulsions and cost of adverse events associated with wcPertussis. Parents who brought their children to health clinics and parents of children who were admitted for febrile convulsions were interviewed using structured questionnaire and the information were used to determine the cost of managing adverse events. Mean cost of managing mild fever per case was RM249, mean cost of managing high fever per case was RM1,036 and mean cost of managing convulsions was RM1,225. Total cost of managing adverse events was RM261 million for mild fever, RM66.7 million for high fever and RM1.3 million for convulsions. Costs of managing mild and high fever were less than the cost of managing convulsions. Total cost of managing mild fever was highest at RM261 million compared with RM66.7 million for high fever and RM1.3 million for convulsions. Thus, lower risk of adverse events actually contributed to higher costs of managing the adverse event.

Matched MeSH terms: Seizures, Febrile; Seizures
Whole exome sequencing identifies a novel SCN1A mutation in genetic (idiopathic) generalized epilepsy and juvenile myoclonic epilepsy subtypes

Chan CK, Low JS, Lim KS, Low SK, Tan CT, Ng CC

Neurol Sci, 2020 Mar;41(3):591-598.
PMID: 31720899 DOI: 10.1007/s10072-019-04122-9

INTRODUCTION: Genetic (idiopathic) generalized epilepsy (GGE) is a common form of epilepsy characterized by unknown aetiology and a presence of genetic component in its predisposition.
METHODS: To understand the genetic factor in a family with GGE, we performed whole exome sequencing (WES) on a trio of a juvenile myoclonic epilepsy/febrile seizure (JME/FS) proband with JME/FS mother and healthy father. Sanger sequencing was carried out for validation of WES results and variant detection in other family members.
RESULTS: Predictably damaging variant found in affected proband and mother but absent in healthy father in SCN1A gene was found to be associated with generalized epilepsy and febrile seizure. The novel non-synonymous substitution (c.5753C>T, p.S1918F) in SCN1A was found in all family members with GGE, of which 4/8 were JME subtypes, and/or febrile seizure, while 3 healthy family member controls did not have the mutation. This mutation was also absent in 41 GGE patients and 414 healthy Malaysian Chinese controls.
CONCLUSION: The mutation is likely to affect interaction between the sodium channel and calmodulin and subsequently interrupt calmodulin-dependent modulation of the channel.

Matched MeSH terms: Seizures, Febrile/genetics*
COVID-19 and its effects on neurological functions

Yew MMT, Lip JQ, Ling APK

Trop Biomed, 2021 Sep 01;38(3):435-445.
PMID: 34608117 DOI: 10.47665/tb.38.3.086

Ever since the first reported case series on SARS-CoV-2-induced neurological manifestation in Wuhan, China in April 2020, various studies reporting similar as well as diverse symptoms of COVID-19 infection relating to the nervous system were published. Since then, scientists started to uncover the mechanism as well as pathophysiological impacts it has on the current understanding of the disease. SARS-CoV-2 binds to the ACE2 receptor which is present in certain parts of the body which are responsible for regulating blood pressure and inflammation in a healthy system. Presence of the receptor in the nasal and oral cavity, brain, and blood allows entry of the virus into the body and cause neurological complications. The peripheral and central nervous system could also be invaded directly in the neurogenic or hematogenous pathways, or indirectly through overstimulation of the immune system by cytokines which may lead to autoimmune diseases. Other neurological implications such as hypoxia, anosmia, dysgeusia, meningitis, encephalitis, and seizures are important symptoms presented clinically in COVID-19 patients with or without the common symptoms of the disease. Further, patients with higher severity of the SARS-CoV-2 infection are also at risk of retaining some neurological complications in the long-run. Treatment of such severe hyperinflammatory conditions will also be discussed, as well as the risks they may pose to the progression of the disease. For this review, articles pertaining information on the neurological manifestation of SARS-CoV-2 infection were gathered from PubMed and Google Scholar using the search keywords "SARS-CoV-2", "COVID-19", and "neurological dysfunction". The findings of the search were filtered, and relevant information were included.

Matched MeSH terms: Seizures/virology
Biochemical evaluation of an infant with hypoglycemia resulting from a novel de novo mutation of the GLUD1 gene and hyperinsulinism-hyperammonemia syndrome

Balasubramaniam S, Kapoor R, Yeow JH, Lim PG, Flanagan S, Ellard S, et al.

J Pediatr Endocrinol Metab, 2011;24(7-8):573-7.
PMID: 21932603

Hyperinsulinism-hyperammonemia syndrome (HI/HA) (OMIM 606762), the second most common form of congenital hyperinsulinism (CHI) is associated with activating missense mutations in the GLUD1 gene, which encodes the mitochondrial matrix enzyme, glutamate dehydrogenase (GDH). Patients present with recurrent symptomatic postprandial hypoglycemia following protein-rich meals (leucine-sensitive hypoglycemia) as well as fasting hypoglycemia accompanied by asymptomatic elevations of plasma ammonia. In contrast to other forms of CHI, the phenotype is reported to be milder thus escaping recognition for the first few months of life. Early diagnosis and appropriate management are essential to avoid the neurodevelopmental consequences including epilepsy and learning disabilities which are prevalent in this disorder. We report an infant presenting with afebrile seizures secondary to hyperinsulinemic hypoglycemia resulting from a novel de novo mutation of the GLUD1 gene.

Matched MeSH terms: Seizures/etiology
Bohring-opitz syndrome - A case of a rare genetic disorder

Visayaragawan N, Selvarajah N, Apparau H, Kamaru Ambu V

Med J Malaysia, 2017 08;72(4):248-249.
PMID: 28889139 MyJurnal

The diagnostic challenge of Bohring-Opitz Syndrome, a rare genetic disorder has haunted clinicians for ages. Our patient was born at term via caesarean-section with a birth weight of 1.95 kilograms. She had mild laryngomalacia, gastroesophageal reflux disease and seizures. Physical signs included microcephaly, hemangioma, low set ears, cleft palate, micrognatia and the typical BOS posture. Chromosomal analysis showed 46 xx -Bohring-Opitz Syndrome overlapped with C- syndrome. Goal-directed holistic care with integration of parent/carer training was started very early. She succumbed to a Respiratory- Syncitial-Virus and Pseudomonas pneumonia complicated with sepsis at the age of two years and 11 months.

Matched MeSH terms: Seizures/etiology
Perampanel, an AMPA receptor antagonist: From clinical research to practice in clinical settings

Tsai JJ, Wu T, Leung H, Desudchit T, Tiamkao S, Lim KS, et al.

Acta Neurol. Scand., 2018 Apr;137(4):378-391.
PMID: 29214650 DOI: 10.1111/ane.12879

Epileptic seizures are refractory to treatment in approximately one-third of patients despite the recent introduction of many newer antiepileptic drugs (AEDs). Development of novel AEDs therefore remains a high priority. Perampanel is a first-in-class non-competitive selective AMPA receptor antagonist with a unique mechanism of action. Clinical efficacy and safety of perampanel as adjunctive treatment for focal seizures with/without secondary generalization (±SG) and primary generalized tonic-clonic (PGTC) seizures have been established in five phase 3 randomized controlled trials (RCTs), and a long-term extension study, and perampanel is approved as monotherapy for focal seizures ±SG in the USA. In patients with focal seizures ±SG, add-on perampanel resulted in median percent reduction in seizure frequency 23.3%-34.5% and ≥50% responder rate 28.5%-37.6%; in PGTC seizures, these results were 76.5% and 64.2%, respectively. Efficacy among adolescents (reduction in seizure frequency 34.8%-35.6%; ≥50% responder rate 40.9%-45.0%) and elderly people (reduction in seizure frequency 12.5%-16.9%; ≥50% responder rate 22.2%-42.9%) is similar to those in adults, and results remain comparable between Asian (reduction in seizure frequency 17.3%-38.0%) and global populations. Perampanel has been extensively studied in real-world clinical practice, with similar efficacy and safety results to the RCTs (≥50% responder rate 12.8%-75.0%; adverse events of somnolence/sedation, dizziness, ataxia, and behavioral changes). Real-world observational studies suggest that perampanel tolerability can be improved by slow titration (2 mg every 2-4 weeks), and bedtime administration can mitigate somnolence and dizziness. Counseling about the potential for behavioral changes and close monitoring are recommended.

Matched MeSH terms: Seizures/drug therapy*
Fulltext Margosa oil poisoning as a cause of toxic encephalopathy

Lai SM, Lim KW, Cheng HK

Singapore Med J, 1990 Oct;31(5):463-5.
PMID: 2259944

Margosa Oil is an extract of the seed of the Neem tree and is widely used as a traditional medicine by Indians in India, Sri Lanka, Burma, Thailand, Malaysia and Indonesia. Used mainly for external applications, it is often administered orally to neonates and infants regularly in small amounts. Margosa Oil causes toxic encephalopathy particularly in infants and young children. The usual features are vomiting, drowsiness, tachypnea and recurrent generalised seizures. Leucocytosis and metabolic acidosis are significant laboratory findings. Management is aimed primarily towards the control of convulsions although supportive management is equally important. Prognosis is usually good but fatalities and neurological deficits have been reported. We report here two infants with Margosa Oil poisoning presenting with encephalopathy.

Matched MeSH terms: Seizures/chemically induced
Feasibility of psychological screening in a tertiary epilepsy clinic

Lim KS, Wong KY, Chee YC, Fong SL, Yu X, Ng CG, et al.

Epilepsy Behav, 2023 Nov;148:109455.
PMID: 37774547 DOI: 10.1016/j.yebeh.2023.109455

OBJECTIVE: People with epilepsy (PWE) have a high prevalence of developing depression and anxiety. The objective is to determine the feasibility of brief screening tools to screen for depression and anxiety in epilepsy, and the predictive factors.
METHOD: This is a cross-sectional study in the neurology clinic in a tertiary teaching hospital in Kuala Lumpur. The screening tools used were the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) and the General Anxiety Disorder Form (GAD-7).
RESULTS: Five hundred and eighty-five patients were recruited in this study, and 50.8% of them were male, predominantly Chinese (46.7%), with a mean age of seizure onset of 21.8 ± 16.1 years. The majority had focal seizures (75.0%), and 41.9% had seizure remission. There were 15.5% who scored ≥15 in the NDDI-E, and 17.0% had moderate or severe anxiety (scored ≥10 in the GAD-7). In a regression model to predict the NDDI-E score, the age of seizure onset recorded a higher beta value (β = -0.265, p =

Matched MeSH terms: Seizures/drug therapy
Effect of newer anti-epileptic drugs (AEDs) on the cognitive status in pentylenetetrazol induced seizures in a zebrafish model

Choo BKM, Kundap UP, Johan Arief MFB, Kumari Y, Yap JL, Wong CP, et al.

Prog Neuropsychopharmacol Biol Psychiatry, 2019 06 08;92:483-493.
PMID: 30844417 DOI: 10.1016/j.pnpbp.2019.02.014

Epilepsy is marked by seizures that are a manifestation of excessive brain activity and is symptomatically treatable by anti-epileptic drugs (AEDs). Unfortunately, the older AEDs have many side effects, with cognitive impairment being a major side effect that affects the daily lives of people with epilepsy. Thus, this study aimed to determine if newer AEDs (Zonisamide, Levetiracetam, Perampanel, Lamotrigine and Valproic Acid) also cause cognitive impairment, using a zebrafish model. Acute seizures were induced in zebrafish using pentylenetetrazol (PTZ) and cognitive function was assessed using the T-maze test of learning and memory. Neurotransmitter and gene expression levels related to epilepsy as well as learning and memory were also studied to provide a better understanding of the underlying processes. Ultimately, impaired cognitive function was seen in AED treated zebrafish, regardless of whether seizures were induced. A highly significant decrease in γ-Aminobutyric Acid (GABA) and glutamate levels was also discovered, although acetylcholine levels were more variable. The gene expression levels of Brain-Derived Neurotrophic Factor (BDNF), Neuropeptide Y (NPY) and Cyclic Adenosine Monophosphate (CAMP) Responsive Element Binding Protein 1 (CREB-1) were not found to be significantly different in AED treated zebrafish. Based on the experimental results, a decrease in brain glutamate levels due to AED treatment appears to be at least one of the major factors behind the observed cognitive impairment in the treated zebrafish.

Matched MeSH terms: Seizures/chemically induced; Seizures/complications; Seizures/drug therapy*; Seizures/psychology*

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