{
  "schemaVersion": 2,
  "eyebrow": "Pediatric Neurology",
  "title": "Febrile Seizure",
  "summary": "Classify the event promptly, treat ongoing convulsions as status at 5 minutes, and direct testing toward meningitis or another cause of fever. A neurologically normal child with a simple febrile seizure generally needs fever-focused evaluation rather than EEG, imaging, or antiseizure prophylaxis.",
  "seoDescription": "Point-of-care evaluation and management of febrile seizures, including simple versus complex classification, meningitis assessment, acute seizure control, and prognosis.",
  "clinicalQuestion": "How should physicians evaluate, treat, and counsel a child presenting with a febrile seizure?",
  "specialty": "Pediatrics",
  "audience": "U.S. physicians and medical trainees",
  "tags": [
    "febrile seizure",
    "simple febrile seizure",
    "complex febrile seizure",
    "febrile status epilepticus",
    "lumbar puncture",
    "pediatric seizure"
  ],
  "keyTakeaways": [
    "A febrile seizure occurs with temperature at least 38°C in a child aged 6-60 months without CNS infection, metabolic disturbance, or prior afebrile seizures. [1][2][21]",
    "Classify as simple only when generalized, under 15 minutes, nonrecurrent during the febrile illness, and followed by complete recovery within 1 hour; any focality, duration over 15 minutes, recurrence, or delayed recovery is complex. [21]",
    "Treat an ongoing convulsive seizure at 5 minutes as convulsive status epilepticus; febrile status epilepticus has traditionally described seizure activity lasting 30 minutes or longer. [21]",
    "For a simple febrile seizure, center the evaluation on identifying the source of fever and exclude meningitis when clinical findings warrant lumbar puncture; routine neurodiagnostic testing is not the central evaluation. [1][18]",
    "Most febrile seizures terminate spontaneously and do not require acute or chronic anticonvulsant therapy after the event. [1][2]",
    "Complex features, neurodevelopmental abnormalities, and family history of epilepsy identify children at higher risk for later epilepsy and justify more individualized follow-up. [4]"
  ],
  "sections": [
    {
      "id": "triage-and-classification",
      "eyebrow": "Initial Decision",
      "heading": "Separate simple febrile seizure from CNS infection, status epilepticus, and an unprovoked seizure",
      "intro": "Classification determines the urgency of seizure treatment and breadth of diagnostic evaluation.",
      "paragraphs": [
        "Apply the febrile-seizure framework only to a child aged 6 months through 5 years with fever above 38°C and no evidence of CNS infection, metabolic disturbance, or prior afebrile seizures. A seizure outside this age range, without fever, or with a preceding afebrile event should not be managed as a routine febrile seizure and requires an alternate seizure evaluation. [1][2][21]",
        "Obtain a witness chronology before assigning classification: focal onset or unilateral motor activity, total convulsive duration, recurrence before baseline recovery, and time to normal mental status. A simple febrile seizure is generalized, lasts less than 15 minutes, occurs once during the febrile illness, and has complete recovery within 1 hour. One or more departures from those criteria defines a complex febrile seizure. [21]",
        "Use the 5-minute treatment threshold rather than waiting for the historical 30-minute definition of febrile status epilepticus. Persistent convulsive activity for 5 minutes or more, or repeated seizures without recovery, requires active seizure management while airway, breathing, circulation, glucose, temperature, and the possibility of CNS infection are assessed. [21]"
      ],
      "bullets": [
        "Features that should redirect evaluation toward CNS infection or another acute neurologic disorder include persistent altered mental status beyond the expected postictal period, meningeal findings, focal neurologic deficits, or an incompletely explained seizure phenotype. Lumbar puncture is the diagnostic procedure when meningitis is clinically suspected. [1][18]",
        "A child who returns fully to neurologic baseline after a first simple febrile seizure should undergo examination directed at the source of fever rather than an indiscriminate seizure workup. [1][18]"
      ],
      "subsections": [],
      "table": {
        "caption": "Clinical classification directs the immediate pathway. [21]",
        "columns": [
          "Pattern",
          "Operational criteria",
          "Next decision"
        ],
        "rows": [
          [
            "Simple febrile seizure",
            "Generalized; less than 15 minutes; single seizure in the febrile illness; complete recovery within 1 hour. [21]",
            "Evaluate the febrile illness and determine whether findings warrant meningitis assessment. [1][18]"
          ],
          [
            "Complex febrile seizure",
            "Focal features, more than 15 minutes, recurrence within 24 hours or the same febrile illness, or incomplete recovery within 1 hour. [21]",
            "Reassess for CNS infection and alternative neurologic diagnoses; individualize further evaluation according to examination and course. [1][2]"
          ],
          [
            "Convulsive status epilepticus",
            "Convulsive seizure activity lasting 5 minutes or more; febrile-status literature has commonly used 30 minutes or more. [21]",
            "Initiate active seizure treatment and urgent evaluation for underlying cause. [21]"
          ]
        ]
      }
    },
    {
      "id": "acute-management",
      "eyebrow": "Acute Care",
      "heading": "Treat persistent convulsions, not a completed simple event",
      "intro": "The immediate objective is termination of ongoing seizure activity and detection of an acute CNS process.",
      "paragraphs": [
        "If convulsions have stopped and the child has recovered appropriately, do not administer acute antiseizure treatment solely because the event was a febrile seizure; most episodes resolve spontaneously and quickly. Continue observation until mental status permits a reliable neurologic examination and the fever source can be evaluated. [1][2]",
        "For ongoing seizure activity at 5 minutes, use a benzodiazepine-based rescue approach as the initial pharmacologic class. Diazepam, lorazepam, and midazolam are identified as mainstays of treatment for acute repetitive seizures; route selection depends on IV access and setting. [13][21]",
        "Do not let apparent fever explain persistent obtundation, focal deficits, or repeated seizures. In those settings, prioritize stabilization and investigate meningitis or encephalitis rather than labeling the episode solely as complex febrile seizure. [1][18]"
      ],
      "bullets": [
        "Document seizure start and stop times, route and timing of rescue medication, recurrence before recovery, and the postictal neurologic examination; these data determine whether the episode meets complex or status criteria. [21]",
        "A prolonged event is not equivalent to a typical self-limited febrile seizure; continued seizure activity after 5 minutes changes management to the convulsive-status pathway. [21]"
      ],
      "subsections": [],
      "table": {
        "caption": "Acute management hinges on whether seizure activity is ongoing. [1][2][13][21]",
        "columns": [
          "Clinical state",
          "Immediate action",
          "Management implication"
        ],
        "rows": [
          [
            "Seizure ended; normalizing examination",
            "Observe through recovery and evaluate the fever source. [1][2]",
            "No routine acute or long-term anticonvulsant treatment for a typical simple event. [1][2]"
          ],
          [
            "Convulsing at 5 minutes",
            "Begin active seizure treatment with a benzodiazepine-based rescue approach while stabilizing ABCs. [13][21]",
            "Manage as convulsive status epilepticus rather than waiting for 30 minutes. [21]"
          ],
          [
            "Persistent altered consciousness or focal deficit",
            "Reassess for CNS infection or another neurologic cause; perform lumbar puncture when meningitis is suspected. [1][18]",
            "Do not attribute ongoing abnormal findings to fever alone. [1][18]"
          ]
        ]
      }
    },
    {
      "id": "diagnostic-evaluation",
      "eyebrow": "Workup",
      "heading": "Make the fever source and meningitis assessment the diagnostic priority",
      "intro": "Testing should answer whether infection involves the CNS or explain the febrile illness.",
      "paragraphs": [
        "For the child with a first simple febrile seizure, direct the history and physical examination to the cause of fever and to signs of meningitis. The AAP neurodiagnostic guidance is specifically framed around the first simple febrile seizure, and the principal diagnostic fork is whether clinical findings support lumbar puncture for suspected CNS infection. [1][18]",
        "Use lumbar puncture when the history or examination raises concern for meningitis. Fever-associated seizure does not itself establish CNS infection, but meningeal illness must be excluded before the event is classified as a febrile seizure. [1][2][21]",
        "Complex features should increase diagnostic vigilance but do not themselves identify a single etiology. Focality, prolonged duration, recurrence, and delayed recovery should trigger repeated neurologic examination and a case-specific decision regarding CNS infection and other acute neurologic pathology. [1][2][21]"
      ],
      "bullets": [
        "A normal return to baseline within 1 hour supports simple classification; incomplete recovery at 1 hour is a complex feature and should prompt reassessment rather than routine discharge labeling. [21]",
        "Do not reclassify a seizure as febrile when a metabolic disturbance, intracranial infection, or history of afebrile seizures is present; each excludes the standard AAP definition. [1][2]"
      ],
      "subsections": [],
      "table": {
        "caption": "Use clinical findings to determine whether the child remains in a febrile-seizure pathway. [1][2][18][21]",
        "columns": [
          "Finding",
          "Interpretation",
          "Next step"
        ],
        "rows": [
          [
            "Fever above 38°C; age 6 months to 5 years; no prior afebrile seizures or metabolic/CNS infection explanation",
            "Compatible with febrile seizure after clinical assessment. [1][2][21]",
            "Classify simple versus complex and evaluate the fever source. [1][21]"
          ],
          [
            "Meningeal concern or clinical suspicion of CNS infection",
            "CNS infection remains an alternative diagnosis. [1][18]",
            "Perform lumbar puncture as clinically indicated. [1][18]"
          ],
          [
            "Focal seizure, duration over 15 minutes, repeat event, or recovery beyond 1 hour",
            "Complex febrile seizure. [21]",
            "Repeat neurologic assessment and individualize further investigation for CNS infection or alternate neurologic disease. [1][2]"
          ],
          [
            "Prior afebrile seizure or identifiable metabolic disturbance",
            "Does not meet the standard febrile-seizure definition. [1][2]",
            "Evaluate as an alternative seizure disorder or provoked seizure syndrome. [1][2]"
          ]
        ]
      }
    },
    {
      "id": "disposition-and-prevention",
      "eyebrow": "Aftercare",
      "heading": "Avoid routine chronic anticonvulsants after simple febrile seizure",
      "intro": "Management after recovery should match recurrence risk and the limited benefit of prophylaxis.",
      "paragraphs": [
        "After a simple febrile seizure with appropriate recovery and no evidence of CNS infection, routine long-term anticonvulsant therapy is not indicated. Most febrile seizures are self-limited, and standard guidance does not support acute or chronic anticonvulsant treatment for the usual completed event. [1][2]",
        "Intermittent diazepam during febrile illnesses reduced recurrent febrile-seizure frequency by 44% in a controlled trial, but anticonvulsant prophylaxis does not alter the risk of later unprovoked seizures. Consideration of intermittent prophylaxis therefore requires a patient-specific discussion of recurrence burden versus medication tradeoffs rather than an expectation of epilepsy prevention. [4][5]",
        "Give caregivers a time-based action plan: place the child safely during a convulsion, observe and record seizure duration, and seek emergency care for a seizure that reaches 5 minutes, repeated seizures without recovery, focal manifestations, or incomplete recovery. The 5-minute threshold reflects the point at which convulsive-status treatment should begin. [21]"
      ],
      "bullets": [
        "Counsel that fever treatment may improve comfort but should not be presented as a proven strategy to prevent febrile seizures; long-term management decisions should focus on the child’s clinical phenotype and recurrence burden. [1][2]",
        "Document whether a future episode is generalized or focal, lasts less or more than 15 minutes, recurs during the illness, and resolves to baseline within 1 hour; these are the features that change classification. [21]"
      ],
      "subsections": [],
      "table": {
        "caption": "Postevent decisions should separate recurrence reduction from epilepsy prevention. [1][2][4][5]",
        "columns": [
          "Decision",
          "Evidence-based implication",
          "Counseling point"
        ],
        "rows": [
          [
            "Routine chronic anticonvulsant treatment after simple febrile seizure",
            "Most events are self-limited and do not require acute or long-term anticonvulsant treatment. [1][2]",
            "Avoid routine maintenance therapy for a typical simple event. [1][2]"
          ],
          [
            "Intermittent diazepam during fever",
            "Reduced recurrent febrile seizures by 44% in a controlled trial. [5]",
            "It reduces febrile-seizure recurrence but does not prevent later unprovoked seizures. [4][5]"
          ],
          [
            "Emergency escalation",
            "Treat convulsive seizure activity at 5 minutes or more as convulsive status epilepticus. [21]",
            "Use a written duration threshold rather than relying on caregiver impression of severity. [21]"
          ]
        ]
      }
    },
    {
      "id": "prognosis-and-follow-up",
      "eyebrow": "Risk Stratification",
      "heading": "Identify children whose phenotype warrants closer neurologic follow-up",
      "intro": "Risk counseling should distinguish recurrent febrile seizures from future unprovoked seizures.",
      "paragraphs": [
        "Reassure families that the overall risk of epilepsy after febrile seizure is low, while explaining that it is not uniform. Family history of epilepsy, complex seizure features, and neurodevelopmental abnormalities are associated with later epilepsy and should be recorded at the first presentation and reviewed after recurrence. [1][2][4]",
        "A history of two or more complex febrile seizures represents a distinct management scenario in clinical pathways, particularly when diazepam has been ineffective. Such children merit individualized reassessment rather than automatic application of the simple febrile-seizure pathway. [1][2]",
        "Arrange follow-up around the discriminators that change the diagnosis: new afebrile seizures, developmental regression or abnormal development, focal events, prolonged events, or repeated complex episodes. A subsequent afebrile seizure no longer fits the standard febrile-seizure definition and should prompt evaluation for epilepsy or another seizure disorder. [1][2][4]"
      ],
      "bullets": [
        "Family history of febrile seizures may inform recurrence counseling, whereas family history of epilepsy is a predictor of later epilepsy after febrile seizures. [1][4]",
        "Do not use successful suppression of a recurrent febrile seizure as evidence that future unprovoked seizures have been prevented. [4][5]"
      ],
      "subsections": [],
      "table": {
        "caption": "Follow-up intensity should reflect epilepsy-associated features rather than fever alone. [1][2][4]",
        "columns": [
          "Risk feature",
          "Clinical implication",
          "Follow-up action"
        ],
        "rows": [
          [
            "Complex seizure phenotype",
            "Associated with later epilepsy risk. [4]",
            "Review event semiology, duration, recurrence, and recovery at follow-up. [21]"
          ],
          [
            "Neurodevelopmental abnormality",
            "Associated with later epilepsy risk after febrile seizures. [4]",
            "Use individualized neurologic follow-up rather than reassurance based solely on fever association. [4]"
          ],
          [
            "Family history of epilepsy",
            "Associated with later epilepsy risk after febrile seizures. [4]",
            "Include in prognosis counseling and follow-up risk assessment. [4]"
          ],
          [
            "New afebrile seizure",
            "Excludes the standard febrile-seizure definition. [1][2]",
            "Evaluate as an unprovoked seizure or epilepsy-spectrum presentation. [1][2]"
          ]
        ]
      }
    }
  ],
  "faq": [],
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  "editorialNote": "Prepared from cited clinical literature using Astra's research workflow. Verify recommendations against current guidance and patient-specific factors.",
  "citations": [
    {
      "number": 1,
      "title": "Febrile seizure - Symptoms, diagnosis and treatment | BMJ Best Practice US",
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      "snippet": "Title: Febrile seizure - Symptoms, diagnosis and treatment | BMJ Best Practice US\n# Febrile seizure. Febrile seizures are usually self-limiting; increased risk of developing epilepsy is low except in a small number of cases. Most febrile seizures resolve spontaneously and quickly, and do not require",
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    {
      "number": 2,
      "title": "Febrile seizure - Symptoms, diagnosis and treatment | BMJ Best Practice",
      "detail": "bestpractice.bmj.com",
      "url": "https://bestpractice.bmj.com/topics/en-gb/566?locale=no",
      "authors": "bestpractice.bmj.com",
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      "snippet": "Title: Febrile seizure - Symptoms, diagnosis and treatment | BMJ Best Practice\n# Febrile seizure. Febrile seizures are usually self-limiting; an increased risk of developing epilepsy is low except in a small number of cases. Most febrile seizures resolve spontaneously and quickly, and do not require",
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    {
      "number": 3,
      "title": "Development and validation of a predictive model for ...",
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      "host": "www.thelancet.com",
      "snippet": "by K Dai · 2025 · Cited by 3 — ... children with epilepsy: a systematic review and meta-analysis, and prospective cohort study ... febrile seizure (RR 1.535, 95% CI 1.144–2.060",
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    {
      "number": 4,
      "title": "A Prospective Study of Recurrent Febrile Seizures | New England Journal of Medicine",
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      "snippet": "has been consistently associated with an increased risk of recurrence.5 The other factors — a family history of epilepsy, complex features, and neurodevelopmental abnormalities — are predictors of later epilepsy in children who have febrile seizures.2,10,26,27 Current data indicate that anticonvulsa",
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      "title": "A Controlled Trial of Diazepam Administered during Febrile ...",
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      "snippet": "by NP Rosman · 1993 · Cited by 321 — Thus, with the use of diazepam, we found a 44 percent reduction in the frequency of recurrent febrile seizures. An analysis of the occurrence of",
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      "snippet": "Evaluation of Patients With Febrile Seizure: Risk Factors, Reccurence, Treatment and Prognosis ... children ... recurrence and epilepsy development. 25. In our",
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      "snippet": "... Epilepsy ... Febrile seizures: Risks, evaluation, and prognosis Am Fam Physician. ... Incidence and prognostic factors for febrile seizure recurrence in children",
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      "title": "Utility of the Performance of Lumbar Puncture for Febrile ...",
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      "snippet": "... febrile seizure among children 6 to 18 months of age. ... ILAE ... Systemic Corticosteroids in Children With Pneumonia: Α Systematic Review and Meta-analysis",
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      "number": 9,
      "title": "Demographic, Clinical & Laboratory Profile in Children with ...",
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      "url": "https://journals.lww.com/jmsc/abstract/2015/17010/demographic,_clinical___laboratory_profile_in.8.aspx",
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      "snippet": "Altogether recurrence of febrile seizure was observed in 4% of patients. The ... Commission on Epidemiology and. Prognosis, International League Against Epilepsy.",
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      "number": 10,
      "title": "Lumbar Puncture in Children from an Area of Malaria ...",
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      "url": "https://academic.oup.com/cid/article-pdf/51/5/534/954387/51-5-534.pdf",
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      "snippet": "by M Laman · 2010 · Cited by 35 — Although routine lumbar puncture (LP) is often recommended as part of the assessment of fever- associated seizures in children, of sample",
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      "number": 11,
      "title": "Management of Febrile Status Epilepticus: Past, Present, and ...",
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      "url": "https://academic.oup.com/book/57972/chapter/476212963",
      "authors": "academic.oup.com",
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      "snippet": "The majority of seizures that arise with fever in infants and children are brief and cause few long-term consequences. A subset of the seizures is prolonged and",
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      "title": "ACVIM Consensus Statement on the management of status ...",
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      "url": "https://academic.oup.com/jvim/article/38/1/19/8448818",
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      "snippet": "by M Charalambous · 2024 · Cited by 59 — Comparison of intranasal midazolam with intravenous diazepam for treating febrile seizures ... Intranasal midazolam vs rectal diazepam in acute childhood seizures.",
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      "title": "Management of acute seizures in children: A review with special consideration of care in resource-limited settings",
      "detail": "www.sciencedirect.com",
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      "snippet": "2020, Pharmaceutics  Show abstract Benzodiazepines such as diazepam, lorazepam and midazolam remained the mainstay of treatment for acute repetitive seizures (ARS). The immediate care for ARS should often begin at home by a caregiver. This prevents the progression of ARS to prolonged seizures or sta",
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      "number": 14,
      "title": "Midazolam Fails to Prevent Neurological Damage in ...",
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      "snippet": "by H Nagase · 2014 · Cited by 13 — In this study, we compared two therapy methods to control convulsive refractory febrile status epilepticus (FCRSE): barbiturate coma therapy with cEEG and",
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      "snippet": "administering antipyretics is suggested during that period for patients with a history of febrile seizures, fever-sensitive epilepsies such as Dravet syndrome,",
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      "title": "Febrile Seizures in an App-Based Children's Fever Registry",
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      "snippet": "This study systematically investigates febrile seizure records from the FeverApp registry to assess their characteristics and explore the clinical implications",
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      "snippet": "Methods: Randomized cohort study, four study groups. ... Background: Levetiracetam is an antiepileptic medication used in vet- ... seizure and epilepsy.",
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      "number": 18,
      "title": "Febrile Seizures: Guideline for the Neurodiagnostic Evaluation of the Child with a Simple Febrile Seizure | Pediatric Clinical Practice Guidelines & Policies | AAP Books | American Academy of Pediatrics",
      "detail": "publications.aap.org",
      "url": "https://publications.aap.org/aapbooks/book/757/chapter/14094094/Febrile-Seizures-Guideline-for-the-Neurodiagnostic",
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      "snippet": "Title: Febrile Seizures: Guideline for the Neurodiagnostic Evaluation of the Child with a Simple Febrile Seizure | Pediatric Clinical Practice Guidelines & Policies | AAP Books | American Academy of Pediatrics\nBook cover for Pediatric Clinical Practice Guidelines &amp; Policies (24th Edition). Pedia",
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      "snippet": "Title: Febrile Seizures | Pediatric Clinical Practice Guidelines & Policies | AAP Books | American Academy of Pediatrics\nBook cover for Pediatric Clinical Practice Guidelines &amp; Policies (19th Edition). Pediatric Clinical Practice Guidelines & Policies. Search for other works by this author on:. ",
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      "snippet": "Title: Treatment of the Child With a First Unprovoked Seizure | Pediatric Clinical Practice Guidelines & Policies | AAP Books | American Academy of Pediatrics\nBook cover for Pediatric Clinical Practice Guidelines &amp; Policies (20th Edition). Pediatric Clinical Practice Guidelines & Policies. Searc",
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      "authors": "cks.nice.org.uk",
      "host": "cks.nice.org.uk",
      "snippet": "# Febrile seizure: What is it? * A febrile seizure is defined as a seizure accompanied by fever (temperature higher than 38°C by any method), without central nervous system infection, which occurs in infants and children aged 6 months to 5 years [AAP, 2011; Wilmshurst, 2015]. * **Febrile seizures ma",
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    {
      "number": 22,
      "title": "Need for Lumbar Puncture in Children Younger Than 12 ...",
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      "snippet": "... children less than 12 months of age with simple febrile seizure. The aims of ... The 2011 AAP guideline recommends that the clinician can option to",
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    {
      "number": 23,
      "title": "How I treat a first single seizure in a child",
      "detail": "journals.lww.com",
      "url": "https://journals.lww.com/annalsofian/_layouts/15/oaks.journals/downloadpdf.aspx?an=02223306-201619010-00005",
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      "snippet": "13. Reilly C, Menlove L, Fenton V, Das KB. Psychogenic nonepileptic seizures in children: A review Epilepsia. 2013;54:1715–24Cited HereGoogle Scholar \n   14. Fisher RS, Acevedo C, Arzimanoglou A, Bogacz A, Cross JH, Elger CE, et al ILAE official report: A practical clinical definition of epilepsy Ep",
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    {
      "number": 24,
      "title": "Febrile Seizures - Continuum - American Academy of Neurology",
      "detail": "journals.lww.com",
      "url": "https://journals.lww.com/continuum/fulltext/2016/02000/febrile_seizures.8.aspx",
      "authors": "journals.lww.com",
      "host": "journals.lww.com",
      "snippet": "Get Access\n\nAlready a Subscriber? Sign in as an individual or via your institution\n\n## REFERENCES\n\n1.\n\nFreeman JM. Febrile seizures: a consensus of their significance, evaluation, and treatment. Pediatrics 1980; 66(6): 1009.\n\nGoogle Scholar\n\n2.\n\nGuidelines for epidemiologic studies on epilepsy. Comm",
      "score": 0.9267649094192534
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  "publishedAt": "2026-08-21T02:01:29.329862+00:00",
  "updatedAt": "2026-08-21T02:01:29.329862+00:00",
  "readingMinutes": 5,
  "slug": "febrile-seizure"
}
