Utilité de la ponction lombaire lors de la première convulsion fébrile chez l’enfant de moins de 18 mois. Étude rétrospective de 157 cas

Incidence of Meningitis in Patients Presenting With Febrile Seizures

INTRODUCTION

Febrile seizures are very commonly encountered in the setting of the pediatric emergency department; it represents 72.2% of seizures presenting to the pediatric emergency department in Saudi Arabia and affects about 3-8% of children. Febrile seizures are usually benign and treated conservatively. This is in contrast to bacterial meningitis, which carries a fatality rate of 14.4%. Meningitis presents with seizures in 23% of cases. Differentiation between febrile seizures and meningitis is therefore of utmost importance to avoid poor outcomes. On the other hand, this may cause many patients with febrile seizures to get exposed to unnecessary invasive testing. This study aims to define the incidence of meningitis in patients with febrile seizures and the proportion of these patients who undergo invasive lumbar puncture.

METHODS

This retrospective cross-sectional study was conducted at the Maternity and Children's Hospital in Madinah, Saudi Arabia. All patients presenting with febrile seizures in the period between January 2015 and June 2019 were covered. Patients' data were gathered from the hospital database and files. Descriptive analysis was performed using SPSS.

RESULTS

A total of 1375 patients were studied, with a male-to-female ratio of 1.44:1. The median age of the sample was 24 months (interquartile range: 13 - 42). Lumbar puncture was done for 108 (7.67%) of them. Only nine patients (8.3%) had meningitis, while the other 99 (91.7 %) had no meningitis.

CONCLUSION

Febrile seizures are a common disease among children. The distinction between febrile seizures and meningitis is paramount to avoid poor outcomes. Bacterial meningitis is rare among patients with febrile seizures. The clinical judgement remains the cornerstone in deciding which patients should undergo invasive testing.

Clinical Features and Evaluation in Terms of Prophylaxis of Patients With Febrile Seizures

Objectives:

Febrile seizures are the most common seizure type of childhood, and prognosis is usually good. Many factors that increase the risk of recurrence and develop epilepsy have been identified. This study aims to determine the clinical characteristics of patients who were admitted with the febrile seizure, and determine the outcomes of the treatment, and the risk factors.

Methods:

Between January 2017 and January 2019, 147 (42.6%) female and 198 (57.4%) male patients who were admitted with febrile seizure, and aged between 3-60 months were included in the study.

Results:

The mean age at the time of admission was 30.4±15.4 months, and the mean age of the first seizure was 21.2±12.8 months. Simple febrile seizure was seen in 247 (71.6%) patients, and complex febrile seizure was seen in 89 (25.8%) patients while febrile status epilepticus was present in 9 (2.6%) patients. Amongst the patients, 59.1% of them had a history of repetitive febrile seizure. First-degree relatives of thirty (8.69%) patients had a history of epilepsy, while 176 (51%) patients had a family history of febrile seizure. Two hundred and seventy-five patients (79.7%) found to have an infection, most frequently upper respiratory tract infection (53.8%), during the examination, which might cause fever. One hundred and ninety-five patients were followed without treatment, while 48.6% of the patients were treated with rectal diazepam, 23.3% with sodium valproate, 23.3% with levetiracetam and 4.6% with phenobarbital. At the end of the one-year follow-up, only four patients (1.15%) with complex febrile seizure were diagnosed with epilepsy. The age of the onset of febrile seizures, family history of febrile seizures, short episodes of febrile seizure and the presence of epilepsy in the family history were found to be the significant risk factors for repetitive seizures.

Conclusion:

Febrile seizures are generally benign and have a low risk of developing epilepsy. Determining the risk factors is essential for the treatment and follow-up plan.

Febrile Seizures and Febrile Seizure Syndromes: An Updated Overview of Old and Current Knowledge

Febrile seizures are the most common paroxysmal episode during childhood, affecting up to one in 10 children. They are a major cause of emergency facility visits and a source of family distress and anxiety. Their etiology and pathophysiological pathways are being understood better over time; however, there is still more to learn. Genetic predisposition is thought to be a major contributor. Febrile seizures have been historically classified as benign; however, many emerging febrile seizure syndromes behave differently. The way in which human knowledge has evolved over the years in regard to febrile seizures has not been dealt with in depth in the current literature, up to our current knowledge. This review serves as a documentary of how scientists have explored febrile seizures, elaborating on the journey of knowledge as far as etiology, clinical features, approach, and treatment strategies are concerned. Although this review cannot cover all clinical aspects related to febrile seizures at the textbook level, we believe it can function as a quick summary of the past and current sources of knowledge for all varieties of febrile seizure types and syndromes.

Relationship between common viral upper respiratory tract infections and febrile seizures in children from Suzhou, China

This study aimed to determine the potential predisposing factors for the development of febrile seizures among children with upper respiratory tract infection in the eastern Chinese region. Participants were individuals aged 6 months and 6 years (n = 189) who were diagnosed with febrile seizure, complicated with upper respiratory tract infection, and 174 age-matched children who had upper respiratory tract infection without seizures as controls. The viral antigens including influenza A and B, parainfluenza, adenovirus, and respiratory syncytial virus were detected from nasopharyngeal aspirates. The incidence of influenza A infection was much higher in patients with febrile seizure than controls, especially those children aged >36 months. Patients with influenza A infection had higher body temperatures at seizure occurrence, shorter seizure duration, and shorter fever duration before seizure onset. Influenza A infections are frequently associated with febrile seizure in children with upper respiratory tract infection. During an influenza epidemic, effective vaccination of children, especially those with a past history of febrile seizure, may minimize the development of febrile seizure.

Actual insights into the clinical management of febrile seizures

Febrile seizures (FS) are a benign epileptic manifestation of infancy occurring between 3 months and 5 years of age and affecting an estimated 2-5 % of children. They have usually no important negative effects on motor and cognitive development. Simple FS (generalized seizures, lasting less than 10 min and single episodes during the same febrile event) have a benign prognosis in almost all cases and do not require an extensive diagnostic workup. In complex FS (focal semiology and lasting more than 10 min, more than one episode during the same febrile event), a more detailed clinical, electroencephalographic, laboratory, and neuroimaging evaluation is necessary because of a higher percentage of underlying detectable causes and a mildly higher risk for later development of epilepsy. Febrile status epilepticus is the most severe type of complex FS even if its morbidity and mortality is extremely low. Simple FS plus (more than one convulsive episode in 24 h) have the same benign prognosis of simple FS. Neither intermittent nor continuous prophylaxis is actually recommended both in simple and complex FS because its side effects outweigh its possible benefits.

CONCLUSION

This review summarizes recent developments into the clinical management of FS including a suggested algorithm for simple and complex FS, the concept of simple FS plus, the controversies about the relationships between FS and hippocampal sclerosis, the relationships between FS and complex syndrome such as Dravet syndrome, genetic epilepsy with FS plus or febrile infection-related epilepsy syndrome, and the results of recent epidemiologic studies on febrile status epilepticus.