Development and validation of a nomogram for the estimation of the prognosis of patients presenting with a febrile seizure.

BACKGROUND: Febrile seizures constitute a prevalent emergency in early childhood. Previous studies indicated that certain febrile seizures in children may progress to epilepsy, exerting a substantial impact on children's health and developmental trajectory. The objective of this study was to formulate a predictive nomogram to assess the likelihood of transitioning from febrile seizures to epilepsy in pediatric patients, thereby facilitating informed decisions regarding medical interventions for febrile seizures. METHODS: A total of 306 patients were enrolled and categorized into training (70%) and test (30%) cohorts. Clinical characteristics were subjected to comparison utilizing chi-squared and t tests. Multivariate logistic regression was employed to identify significant factors for predicting the risk of transitioning from febrile seizures to epilepsy, leading to the development of a nomogram. The nomogram's performance was assessed through receiver operating characteristic curves, calibration, and decision curve analysis. RESULTS: Predictive factors associated with the transition to epilepsy encompassed lower Na, elevated RDW, IL-6, and increased background slow rhythm and epileptiform discharges in EEG. The nomogram, incorporating five factors, exhibited commendable predictive value (AUC train = 0.812, AUC test = 0.791) for assessing the risk of transitioning from febrile seizures to epilepsy. Calibration analyses confirmed reliability, and decision curve analysis underscored its clinical utility. CONCLUSIONS: Lower Na, elevated RDW, IL-6, background slow rhythm, and epileptiform discharges are associated with the risk of transitioning from febrile seizures to epilepsy. The nomogram stands as a valuable tool for predicting this risk, aiding in the strategic implementation of medical interventions to enhance outcomes for patients with febrile seizures.

Distinguishing features of COVID-19 and non-COVID-19 febrile seizures in hospitalised children.

INTRODUCTION: Febrile seizures in children can be associated with various underlying conditions, including COVID-19. Differentiating COVID-19 and non-COVID-19 related febrile seizures is crucial for tailored patient management and for implementing appropriate infection control measures to prevent nosocomial transmission. This study aimed to describe the clinical features of children hospitalised for COVID-19 and non-COVID-19 febrile seizures and to identify factors that differentiate between the two groups. MATERIALS AND METHODS: This retrospective cross-sectional study involved children aged 6 months to 6 years who were hospitalised for febrile seizures in Hospital Tuanku Ja'afar Seremban (HTJS) from January 2021 to June 2022. Descriptive statistics were used to summarise the differences in demographics and clinical presentations. Logistic regression analyses were performed to identify factors associated with COVID-19 and non-COVID-19 febrile seizures. RESULTS: Of the 345 patients (median age 22 months, IQR 15- 32; 59.7% were males) included in the study, 130 (37.7%) tested positive for COVID-19, while 215 (62.3%) tested negative. There were no significant differences between both groups based on age, comorbidities, history of febrile seizures, seizure types, temperature on arrival, cough and rhinorrhoea. Multivariate analysis revealed that a family history of febrile seizures and leucocytosis were associated with increased odds of non-COVID-19 febrile seizures. In contrast, lymphopenia was associated with decreased odds. CONCLUSION: The clinical presentation of COVID-19 and non- COVID-19 febrile seizures are remarkably similar, highlighting the importance of including COVID-19 screening in febrile seizures workup. Full blood count readings may be potentially useful for differentiating between these conditions.

Uncertainty, knowledge, and anxiety of mothers concerning febrile seizure: A comparison between affected and unaffected mothers.

BACKGROUND: Febrile seizures are the most common type of convulsions affecting children aged six months to five years. However, febrile seizures can be difficult to identify due to the vague nature of the symptoms, which can lead to incorrect diagnosis and treatment. Thus, this study explores febrile seizure-related uncertainty, knowledge, and anxiety among mothers. DESIGN AND METHODS: A cross-sectional design included 190 Jordanian mothers, about half with children having febrile seizure history. Instruments included the State-Trait Anxiety Inventory (STAI), Parental Perception of Uncertainty Scale (PPUS), and Parental Knowledge, Attitudes, Concerns, and Practices (KACP). RESULTS: Mothers exhibited poor febrile seizure knowledge, with affected mothers significantly scoring higher than unaffected. Affected mothers had higher state and trait anxiety and uncertainty. Correlations showed uncertainty positively correlated with anxiety. Regression analysis showed that trait anxiety and knowledge predicted uncertainty in affected mothers, while only trait anxiety predicted uncertainty in unaffected mothers. CONCLUSION: Mothers, especially those with affected children, demonstrated low febrile seizure knowledge, high anxiety, and uncertainty. Lack of knowledge may contribute to ineffective febrile seizure management. The study identifies trait anxiety and knowledge as predictors of uncertainty, emphasizing the need for tailored interventions. PRACTICE IMPLICATIONS: Healthcare professionals can design interventions targeting febrile seizure education and anxiety reduction. Policymakers should focus on raising awareness and allocating resources for effective interventions, potentially improving children with febrile seizure outcomes. This study underscores the importance of addressing maternal knowledge gaps, anxiety, and uncertainty related to febrile seizures, suggesting the need for comprehensive educational programs and support strategies for mothers.

Febrile seizures: A clinical review and focus on caregiver education.

ABSTRACT: Febrile seizures are the most common seizure disorder in childhood. Most febrile seizures have a benign course and children have a good prognosis. However, febrile seizures are traumatizing events for a child's family or caregiver to witness. Appropriate caregiver education is crucial to ease anxiety. This article reviews the risk factors, clinical presentation, diagnostics, treatment, and prevention of febrile seizures in addition to providing a guideline for effective caregiver education and support.

Risk factors and predictors of recurrence of febrile seizures in children in Nantong, China: a retrospective cohort study.

BACKGROUND: Although most children with febrile seizures (FS) have a favorable prognosis, some experience recurrence within 1-3 years. Age, peak temperature, and family history are now recognized as important risk factors for FS recurrence, yet studies in this area are lacking in China. This study aimed to investigate the risk factors for FS recurrence in children in Nantong, China, and to develop a prediction model. METHODS: This retrospective cohort study analyzed 463 children diagnosed with febrile seizures (FS) who presented to the Affiliated Hospital of Nantong University between January 2015 and June 2020. Basic information, disease characteristics, and laboratory and imaging data were collected. A follow-up survey was conducted one year post-discharge to assess the recurrence status of FS in children. Univariate logistic regression and random forest models were used to identify and rank the predictive ability of risk factors for recurrence. RESULTS: Of the 463 children with FS, 70 experienced recurrences within 1 year of discharge, resulting in a one-year recurrence rate of 15%. Age (OR = 0.61, 95% CI: 0.46, 0.80, P < 0.001), duration of the first episode (OR = 1.03, 95% CI: 1.00, 1.06, P = 0.040), and peak temperature (OR = 0.68, 95% CI: 0.47, 0.98, P = 0.036) were identified as independent risk factors for FS recurrence. Age had the highest relative importance in predicting FS recurrence, followed by the duration of the first episode, with an area under the ROC curve of 0.717. CONCLUSION: Young age and duration of the first seizure are important independent risk factors for FS recurrence and are key considerations for predicting recurrence. Further research is needed to confirm the potential use of Neutrophil-lymphocyte ratio (NLR) as a predictor of FS recurrence.

Best practices for the management of febrile seizures in children.

Febrile seizures (FS) are commonly perceived by healthcare professionals as a self-limited condition with a generally 'benign' nature. Nonetheless, they frequently lead to pediatric consultations, and their management can vary depending on the clinical context. For parents and caregivers, witnessing a seizure can be a distressing experience, significantly impacting their quality of life. In this review, we offer an in-depth exploration of FS management, therapeutic interventions, and prognostic factors, with the aim of providing support for physicians and enhancing communication with families. We conducted a comprehensive literature search using the PubMed and Web of Science databases, spanning the past 50 years. The search terms utilized included "febrile seizure," "complex febrile seizure," "simple febrile seizure," in conjunction with "children" or "infant." Only studies published in English or those presenting evidence-based data were included in our assessment. Additionally, we conducted a cross-reference search to identify any additional relevant data sources. Our thorough literature search resulted in a compilation of references, with carefully selected papers thoughtfully integrated into this review.

Febrile Seizures: A Systematic Review of Different Guidelines.

BACKGROUND: Febrile seizures (FS) are the most common neurological disorder in pediatric age. FS affect 2% to 12% of children and result from a complex interplay of genetic and environmental factors. Effective management and unambiguous recommendations are crucial for allocating health care resources efficiently and ensuring cost-effectiveness in treating FS. METHODS: This systematic review compares existing guidelines to provide insights into FS management. Seven guidelines published between 1991 and 2021, from Japan, United Kingdom, United States, Mexico, India, and Italy, were included. Data extraction covered definitions, diagnostic criteria, hospital admission criteria, diagnostic tests, management, and prophylaxis recommendations. RESULTS: Hospital admission criteria varied but typically included age <18 months and complex FS. Neuroimaging and lumbar puncture recommendations varied, with most guidelines suggesting limited use. Pharmacologic prophylaxis was generally discouraged for simple FS but considered only for high-risk cases, due to the benign nature of FS and the potential side effects of antiseizure medications. CONCLUSIONS: Guidelines on FS exhibit similarities and differences, highlighting the need for standardized management and improved parental education to enhance clinical outcomes and reduce economic and social costs associated with FS. Future research should focus on creating updated international guidelines and ensuring their practical implementation.

Clinical Profile and Predictors of Recurrent Simple Febrile Seizure.

BACKGROUND: Recurrent simple febrile seizure (SFS) refers to febrile seizure (FS) that recurs within 24 hours. Patients with recurrent SFS often undergo unnecessary neurodiagnostic tests. To address this, we compared the clinical characteristics of recurrent SFS with those of SFS and investigated the risk factors associated with recurrent SFS. METHODS: We retrospectively reviewed electronic medical records of patients aged six to 60 months who had been hospitalized for FS at two training hospitals between January 2016 and December 2019. The primary outcome was a comparison of the clinical features of patients with SFS and recurrent SFS. Additionally, the risk factors associated with seizure recurrence within 24 hours were evaluated. RESULTS: Three quarters (n = 191, 75.2%) of the 254 enrolled patients experienced a single seizure episode during the febrile illness period. The remaining 63 patients (24.8%) were diagnosed with recurrent SFS. Significant differences between SFS and recurrent SFS were observed in the history of recurrent SFS, time from fever onset to seizure, and body temperature on hospital arrival. Multiple logistic regression analysis revealed that a history of previous recurrent SFS (odds ratio [OR] 10.161) and a body temperature below 39°C on arrival (OR 2.377) were significantly associated with early seizure recurrence. CONCLUSIONS: This study highlights that early FS recurrence is common and has a self-limiting clinical course similar to that of SFS. We recommend close monitoring of the patient for six to eight hours when a history of early recurrence is present or if the seizure occurs at a low body temperature.

Racial and Ethnic Differences in Hospital Admission and Diagnostic Evaluation for Febrile Seizures in the Emergency Department.

OBJECTIVE: To examine differences in hospital admission and diagnostic evaluation for febrile seizure by race and ethnicity. STUDY DESIGN: We conducted a cross-sectional study among children 6 months to 6 years with simple or complex febrile seizure between January 1, 2016, and December 31, 2021, using data from the Pediatric Health Information System. The primary outcome was hospital admission. Secondary outcomes included the proportion of encounters with neuroimaging or lumbar puncture. We used mixed-effects logistic regression model with random intercept for hospital and patient to estimate the association between outcomes and race and ethnicity after adjusting for covariates, including seizure type. RESULTS: In total, 94 884 encounters were included. Most encounters occurred among children of non-Hispanic White (37.0%), Black (23.9%), and Hispanic/Latino (24.6%) race and ethnicity. Black and Hispanic/Latino children had 29% (aOR 0.71; 95% CI 0.66-0.75) and 26% (aOR 0.74; 95% CI 0.69-0.80) lower odds of hospital admission compared with non-Hispanic White children, respectively. Black and Hispanic/Latino children had 21% (aOR 0.79; 95% CI 0.73-0.86) and 22% (aOR 0.78; 95% CI 0.71-0.85) lower adjusted odds of neuroimaging compared with non-Hispanic White children. For complex febrile seizure, the adjusted odds of lumbar puncture was significantly greater among Asian children (aOR 2.12; 95% CI 1.19-3.77) compared with non-Hispanic White children. There were no racial differences in the odds of lumbar puncture for simple febrile seizure. CONCLUSIONS: Compared with non-Hispanic White children, Black and Hispanic/Latino children with febrile seizures are less likely to be hospitalized or receive neuroimaging.

Febrile seizure in children with COVID-19 during the Omicron variant-predominant era: A single-center study.

OBJECTIVE: Coronavirus disease 2019 (COVID-19) has significantly impacted medical services worldwide. During the Omicron variant-predominant era, febrile seizure (FS) in patients with COVID-19 increased compared to that in the pre-Omicron variant era. Therefore, this study aimed to demonstrate the clinical characteristics of FS in patients with COVID-19. METHODS: We surveyed patients aged < 16 years who presented with FS to the emergency room of Tottori University Hospital. The patients were divided into two groups: FS patients with COVID-19 (FS with COVID-19 group) and FS patients without COVID-19 (FS without COVID-19 group) as per the results of the respiratory multiplex array test. Patients with positive results for both SARS-CoV-2 and other microorganisms were excluded. We obtained data on the patients' clinical backgrounds, symptoms, seizure duration, type of FS (simple or complex), diagnostic examinations, laboratory test results, and treatment. We compared the data between the FS with and without COVID-19 groups. RESULT: A total of 128 patients with FS met the inclusion criteria. Of these, 18 patients and 110 patients were included in the FS with COVID-19 group and without COVID-19 group, respectively. The late FS onset (>60 months) were significantly more common in the FS with COVID-19 group than that in the FS without COVID-19 group. Moreover, patients in the FS with COVID-19 group had significantly longer seizure durations than those in the FS without COVID-19 group. A diazepam (DZP) suppository was administered to 72% of FS patients with COVID-19 after the first seizure during a febrile episode. CONCLUSION: FS patients with COVID-19 had different distributions of age at onset and seizure duration than those without COVID-19. The use of DZP suppositories was more frequent in FS patients with COVID-19 compared to those without COVID-19.

Neutrophil-lymphocyte ratio, red cell distribution width and mean platelet volume as practical markers in febrile seizure classification.

OBJECTIVE: To examine the neutrophil-lymphocyte ratio, red cell distribution width and mean platelet volume in patients with febrile seizure and to determine their role in febrile seizure classification. METHODS: This was a retrospective hospital-based study conducted among patients aged 5 to 72 months admitted with febrile seizure. Children who had febrile seizures due to upper respiratory tract infection were included in the study. The children were divided into two groups: simple febrile seizures and complex febrile seizures. Patients with a history of febrile status epilepticus, previous convulsions, use of antiepileptic or other chronic drugs, foci of infection other than the upper respiratory tract infection, abnormal biochemical parameters, and chronic mental or physical disease were excluded from the study. Clinical and laboratory findings of the patients were obtained from digital medical records. RESULTS: The records of 112 febrile seizure patients were reviewed, and 89 were grouped as simple and 23 as complex febrile seizures. Although there was no statistically significant difference between the two groups in terms of the mean red cell distribution width values (p=0.703), neutrophil-lymphocyte ratio and mean platelet volume were significantly higher in patients with complex febrile seizures (p=0.034, p=0.037; respectively). CONCLUSIONS: This study showed that neutrophil-lymphocyte ratio and mean platelet volume could be practical and inexpensive clinical markers for febrile seizure classification. A similar result could not be reached for red cell distribution width in this study. These findings should be supported by multicenter studies with large samples.

Development and validation of a predictive model for febrile seizures.

Febrile seizures (FS) are the most prevalent type of seizures in children. Existing predictive models for FS exhibit limited predictive ability. To build a better-performing predictive model, a retrospective analysis study was conducted on febrile children who visited the Children's Hospital of Shanghai from July 2020 to March 2021. These children were divided into training set (n = 1453), internal validation set (n = 623) and external validation set (n = 778). The variables included demographic data and complete blood counts (CBCs). The least absolute shrinkage and selection operator (LASSO) method was used to select the predictors of FS. Multivariate logistic regression analysis was used to develop a predictive model. The coefficients derived from the multivariate logistic regression were used to construct a nomogram that predicts the probability of FS. The calibration plot, area under the receiver operating characteristic curve (AUC), and decision curve analysis (DCA) were used to evaluate model performance. Results showed that the AUC of the predictive model in the training set was 0.884 (95% CI 0.861 to 0.908, p < 0.001) and C-statistic of the nomogram was 0.884. The AUC of internal validation set was 0.883 (95% CI 0.844 to 0.922, p < 0.001), and the AUC of external validation set was 0.858 (95% CI 0.820 to 0.896, p < 0.001). In conclusion, the FS predictive model constructed based on CBCs in this study exhibits good predictive ability and has clinical application value.

Multivariate linear mixture models for the prediction of febrile seizure risk and recurrence: a prospective case-control study.

Our goal was to identify highly accurate empirical models for the prediction of the risk of febrile seizure (FS) and FS recurrence. In a prospective, three-arm, case-control study, we enrolled 162 children (age 25.8 ± 17.1 months old, 71 females). Participants formed one case group (patients with FS) and two control groups (febrile patients without seizures and healthy controls). The impact of blood iron status, peak body temperature, and participants' demographics on FS risk and recurrence was investigated with univariate and multivariate statistics. Serum iron concentration, iron saturation, and unsaturated iron-binding capacity differed between the three investigated groups (pFWE < 0.05). These serum analytes were key variables in the design of novel multivariate linear mixture models. The models classified FS risk with higher accuracy than univariate approaches. The designed bi-linear classifier achieved a sensitivity/specificity of 82%/89% and was closest to the gold-standard classifier. A multivariate model assessing FS recurrence provided a difference (pFWE < 0.05) with a separating sensitivity/specificity of 72%/69%. Iron deficiency, height percentile, and age were significant FS risk factors. In addition, height percentile and hemoglobin concentration were linked to FS recurrence. Novel multivariate models utilizing blood iron status and demographic variables predicted FS risk and recurrence among infants and young children with fever.

Febrile Seizures.

Febrile seizures (FSs) are the most common cause of pediatric seizures. They are defined as seizures in children age 6 months to 5 years with a temperature higher than 100.4°F, although they are more common at higher temperatures. A family history of FS is the most common risk factor. FSs are classified into three types (simple, complex, or febrile status epilepticus) based on duration and quality, with simple FSs accounting for many cases. Most FSs persist for less than 10 minutes and are self-limiting. Approximately one-third of patients will have recurrence of FSs. Safe and effective prophylaxis for FS has yet to be identified. Most patients will not have any long-term sequelae, although there is an increased risk of epilepsy, particularly for those with febrile status epilepticus. FSs are associated with caregiver anxiety, "fever phobia," and high health care use, emphasizing the importance of education and reassurance for both the provider and family. [Pediatr Ann. 2023;52(10):e388-e393.].

Development of a prediction nomogram model of recurrent febrile seizures in pediatric children.

The purpose of this study is to develop a prediction nomogram of recurrent febrile seizures in pediatric children based on the identified predictors for developing recurrent febrile seizures. This is a retrospective observational study. The medical records of 320 febrile seizure-afflicted children admitted to Zhoushan Women and Children Hospital from March 2019 to January 2023 were retrospectively reviewed. Children were divided into the recurrent febrile seizures group and the non-recurrent febrile seizures group. The predictors of recurrent febrile seizures were identified by univariate and multivariate analyses. A prediction nomogram model was developed via R software. The performance of the nomogram was internally validated to assess the model's discrimination and consistency, and decision curve analysis was employed to assess clinical utility. There were 41 out of 320 cases that had recurrent febrile seizures during the observation period, with a 12.81% prevalence rate of recurrent febrile seizures. The predictors of recurrent febrile seizures were young age at the first febrile seizures, a family history of febrile seizures in a first-degree relative, diurnal variation of initial febrile seizures occurrence, gender, and a low level of C-reactive protein. The area under the receiver operating characteristic curve of the nomogram is 0.795 (95% confidence interval: 0.720-0.871). Calibration plots and the result of the Hosmer-Lemeshow test (P = 0.472) reveal satisfactory consistency. Decision curve analysis showed a significant net benefit of the nomogram. CONCLUSIONS: The prediction nomogram model demonstrates good performance and clinical utility, which would be a convenient tool for the detection of children in pediatrics with high-risk recurrent febrile seizures. It is useful for pediatric medical staff to provide early medical interventions and family counseling. WHAT IS KNOWN: • A proportion of children experience recurrences of febrile seizures. • Recognition of risk factors for recurrent FS in pediatrics would be useful for the prediction of risk probabilities and help provide tailored counseling and follow-up. WHAT IS NEW: • A nomogram model is developed for risk prediction of recurrent febrile seizures in this study, which would be a convenient risk prediction tool in pediatrics. • The predictor of diurnal variation of recurrent febrile seizures is with new ideas.

[Pediatric infectious emergencies-from febrile seizure to purpura fulminans]. / Infektiologische Kindernotfälle ­ vom Fieberkrampf bis zur Purpura fulminans.

Febrile seizures, which are relatively common in young children, are often triggered by an infection and resolve quickly. Prompt presentation to a pediatric department is mandatory after any first seizure and every time for children ≤ 12 months. Central nervous system (CNS) diseases in childhood are able to cause seizures or other neurological disorders. Even the slightest suspicion of a seizure with CNS involvement must be promptly treated. In case of doubt, both an antiviral and an antibacterial treatment are started in parallel, which can be stopped after detecting the pathogen. Lumbar puncture is strictly indicated unless there are contraindications. Meningococcal sepsis is a severe clinical feature comprising high fever, chills and disorders of consciousness. The first skin symptoms are petechiae as a red flag sign. With progression, potentially lethal purpura fulminans may develop. Waterhouse-Friderichsen syndrome is a severe complication of acute bacterial meningitis. Lethality rate is 35%. The pediatric assessment triangle and the ABCDE algorithm help to identify critically ill children in a standardized, structured, and rapid manner.

SCN1A-deficient excitatory neuronal networks display mutation-specific phenotypes.

Dravet syndrome is a severe epileptic encephalopathy, characterized by (febrile) seizures, behavioural problems and developmental delay. Eighty per cent of patients with Dravet syndrome have a mutation in SCN1A, encoding Nav1.1. Milder clinical phenotypes, such as GEFS+ (generalized epilepsy with febrile seizures plus), can also arise from SCN1A mutations. Predicting the clinical phenotypic outcome based on the type of mutation remains challenging, even when the same mutation is inherited within one family. This clinical and genetic heterogeneity adds to the difficulties of predicting disease progression and tailoring the prescription of anti-seizure medication. Understanding the neuropathology of different SCN1A mutations may help to predict the expected clinical phenotypes and inform the selection of best-fit treatments. Initially, the loss of Na+-current in inhibitory neurons was recognized specifically to result in disinhibition and consequently seizure generation. However, the extent to which excitatory neurons contribute to the pathophysiology is currently debated and might depend on the patient clinical phenotype or the specific SCN1A mutation. To examine the genotype-phenotype correlations of SCN1A mutations in relation to excitatory neurons, we investigated a panel of patient-derived excitatory neuronal networks differentiated on multi-electrode arrays. We included patients with different clinical phenotypes, harbouring various SCN1A mutations, along with a family in which the same mutation led to febrile seizures, GEFS+ or Dravet syndrome. We hitherto describe a previously unidentified functional excitatory neuronal network phenotype in the context of epilepsy, which corresponds to seizurogenic network prediction patterns elicited by proconvulsive compounds. We found that excitatory neuronal networks were affected differently, depending on the type of SCN1A mutation, but did not segregate according to clinical severity. Specifically, loss-of-function mutations could be distinguished from missense mutations, and mutations in the pore domain could be distinguished from mutations in the voltage sensing domain. Furthermore, all patients showed aggravated neuronal network responses at febrile temperatures compared with controls. Finally, retrospective drug screening revealed that anti-seizure medication affected GEFS+ patient- but not Dravet patient-derived neuronal networks in a patient-specific and clinically relevant manner. In conclusion, our results indicate a mutation-specific excitatory neuronal network phenotype, which recapitulates the foremost clinically relevant features, providing future opportunities for precision therapies.

Evaluation of patients presenting with febrile seizures in an Iranian referral hospital: emphasis on the frequency of meningitis and co-infections.

INTRODUCTION: Febrile seizures are one of the most common diseases that physicians encounter in pediatric emergency departments. Two important aspects of managing patients presenting with a febrile seizure are meningitis exclusion and co-infection investigation. This study was designed to determine any infection that occurs concomitantly with a febrile seizure episode and also to assess the frequency of meningitis among children presenting with febrile seizures. METHODS: This retrospective cross-sectional study was conducted at the Children's Medical Center, an Iranian pediatric referral hospital. All patients aged 6 months to 5 years presenting with febrile seizures from 2020 to 2021 were included. Patients' data were collected from the medical report files. The presence of respiratory, gastrointestinal, and urinary infections was evaluated. Moreover, the detection of SARS-CoV-2 using reverse transcription polymerase chain reaction (RT-PCR) was performed for suspicious cases. The results of urine and stool analysis, as well as blood, urine, and stool cultures were checked. The frequency of lumbar puncture (LP) performance and its results were studied. The relationship between white blood cells (WBC), erythrocyte sedimentation rate (ESR), and C-reactive protein in meningitis was evaluated. RESULTS: A total of 290 patients were referred to the Children's Medical Center, Tehran, Iran, due to fever and seizures. The mean age of the patients was 21.5 ± 13.0 months, and 134 (46.2%) were female. Out of 290 patients, 17% presented with respiratory infections. Nasopharyngeal SARS-CoV-2 RT-PCR was requested for 50 patients (17%), of which nine (3%) were reported positive and two patients had multi-inflammatory syndrome in children (MIS-C). Fever without local signs, gastroenteritis, and urinary tract infections were found in 40%, 19%, and 14% of the patients, respectively. LP was requested for 97 participants (33.4%) to evaluate central nervous system infection, of which 22 cases were suggestive of aseptic meningitis. Among laboratory tests, leukocytosis was significantly related to aseptic meningitis (odds ratio = 11.1, 95% CI = 3.0- 41.5). The blood culture testing result was positive in seven patients; all of them were due to skin contamination. CONCLUSION: Evaluation of patients for possible meningitis is necessary for febrile seizure management. Although the prevalence of bacterial meningitis in these patients is not high, according to this study and other studies conducted in Iran, aseptic meningitis, especially after Measles, Mumps, and Rubella (MMR) vaccination should be considered. Leukocytosis and increased CRP can predict the occurrence of aseptic meningitis in these patients. However, further studies with a larger sample size are highly recommended. Moreover, during the COVID-19 pandemic, it is recommended to pay attention to an acute COVID-19 infection or evidence of MIS-C in children with fever and seizure.

A serial analysis of serum aspartate aminotransferase levels in patients with acute encephalopathy with biphasic seizures and late reduced diffusion and prolonged febrile seizure.

BACKGROUND: There are no established biomarkers for diagnosing acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) in the early acute phase, called "the 1st seizure phase". Based on our clinical experience, we hypothesized that serial examinations of blood levels of aspartate aminotransferase (AST) in children with febrile convulsive status epilepticus (FCSE) revealed higher levels in patients with AESD in the 1st seizure phase than in those with prolonged febrile seizures (PFs). METHODS: To test our presented hypothesis, we retrospectively investigated changes in serum AST in patients with FCSE due to AESD (n = 11) or PFs (n = 27) who were serially examined within 48 h of the onset of convulsions. RESULTS: The rate of increase in AST was significantly higher in patients with AESD than in those with PFs. The rate of increase in AST correlated with previously reported scoring systems, i.e., Yokochi and Tottori scores, for the prediction of AESD. A positive correlation between the rate of increase in AST and creatinine levels in the first examination were observed; however, creatinine levels did not significantly differ between the AESD and PFs groups in the first or second examination. Blood levels of pH, ammonia, and sugar in the first examination and C-reactive protein in the second examination were significantly higher in the AESD group than in the PFs group. CONCLUSIONS: The present study revealed that the rate of increase in AST was significantly higher in patients with AESD than in those with PFs. A novel predictive scoring system needs to be established in combination with the rate of increase in AST and reported clinical parameters, which will improve the prognosis of patients with FCSE.

Exploring the Age-Old Question: What Is the Predictive Value of EEG for Future Epilepsy in Children With Complex Febrile Seizures?

Children with complex febrile seizures (CFS) have increased risk for the development of epilepsy, but varying prognostic value has been ascribed to abnormal post-CFS electroencephalograms (EEGs). We conducted a retrospective cohort study of 621 children with post-CFS EEGs and identified an association between CFS and midline-vertex discharges, which were present in 52% of the 56 EEGs with interictal epileptiform discharges. Among patients who completed at least 1 year of follow-up, 24.7% subsequently developed epilepsy. Most patients had normal EEGs but 20% had interictal epileptiform discharges. Midline-vertex discharges were seen at a similar rate in children who did not develop epilepsy (55%) and those who developed epilepsy (45%). The development of epilepsy was not associated with any interictal epileptiform discharge localization. Logistic regression modeling identified 4 predictors of future epilepsy: >3 febrile seizures in 24 hours, interictal epileptiform discharges during post-CFS EEG, family history of afebrile seizures, and age of CFS onset ≥ 3 years.