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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

190 questions in 24 reviews · Epilepsy

current versions
No studies 190 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Lamotrigine plus ASMs vs placebo plus ASMs
Number of participants free from all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Lamotrigine plus ASMs vs placebo plus ASMs
Number of participants with ≥ 75% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
Number of participants with ≥ 75% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Rufinamide plus ASMs vs placebo plus ASMs
Number of participants free from all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Rufinamide plus ASMs vs placebo plus ASMs
Number of participants with ≥ 75% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Rufinamide plus ASMs vs other ASM plus ASMs
Number of participants free from all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Rufinamide plus ASMs vs other ASM plus ASMs
Number of participants with ≥ 75% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Rufinamide plus ASMs vs other ASM plus ASMs
Number of participants with ≥ 50% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
Number of participants with ≥ 50% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Topiramate plus ASMs vs placebo plus ASMs
Number of participants free from all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Topiramate plus ASMs vs placebo plus ASMs
Number of participants with ≥ 50% reduction in all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Cinromide plus ASMs vs placebo plus ASMs
Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age1
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs
Number of participants free from all seizures · Lennox‐Gastaut syndrome, any age
Anti‐seizure medications for Lennox‐Gastaut syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Topiramate vs placebo
Number of participants who were seizure‐free · people with juvenile myoclonic epilepsy
Topiramate for juvenile myoclonic epilepsy (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg or 100 mg/kg) vs dexmedetomidine oral (2 µg/kg or 3 µg/kg)
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (100 mg/kg or 75 mg/kg) vs midazolam (intranasal 0.2 mg/kg or oral 0.5 mg/kg)
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (100 mg/kg or 75 mg/kg) vs midazolam (intranasal 0.2 mg/kg or oral 0.5 mg/kg)
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg or 100 mg/kg) vs dexmedetomidine oral (2 µg/kg or 3 µg/kg)
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg) vs melatonin oral
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg) vs melatonin oral
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg) vs melatonin oral
Time to adequate sedation (minutes or as measured by specific validated scales such as the Ramsay Sedation Score) · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg) vs melatonin oral
Proportion of children who had sedation failure or inadequate level of sedation · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg + 50 mg/kg) vs hydroxyzine hydrochloride oral (1 mg/kg + 1 mg/kg)
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (50 mg/kg + 50 mg/kg) vs hydroxyzine hydrochloride oral (1 mg/kg + 1 mg/kg)
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (70 mg/kg) vs promethazine oral (1 mg/kg)
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (70 mg/kg) vs promethazine oral (1 mg/kg)
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (60 mg/kg) vs music therapy
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (60 mg/kg) vs music therapy
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (60 mg/kg) vs music therapy
Number of children with clinical adverse events (any) · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (75 mg/kg) vs pentobarbital intravenous (5 mg/kg)
Proportion of children who successfully completed neurodiagnostic procedure without interruption by the child awakening · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Chloral hydrate oral (75 mg/kg) vs pentobarbital intravenous (5 mg/kg)
Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures
Chloral hydrate as a sedating agent for neurodiagnostic procedures in children (2021) · Cochrane
no estimate extractedNRNo studies
Levetiracetam vs phenobarbital
Proportion with seizure freedom in dominantly inherited AD · patients with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Levetiracetam vs phenobarbital
Improvement in quality of life · patients with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Lamotrigine vs phenobarbital
Proportion with seizure freedom in dominantly inherited AD · patients with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Lamotrigine vs phenobarbital
Improvement in quality of life · patients with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Levetiracetam vs lamotrigine
Proportion with seizure freedom in dominantly inherited AD · people with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Levetiracetam vs lamotrigine
Improvement in quality of life · people with AD and epileptic seizures
Treatment of epilepsy for people with Alzheimer's disease (2021) · Cochrane
no estimate extractedNRNo studies
Norethisterone vs placebo
Seizure freedom · women with seizures due to catamenial epilepsy
Treatments for seizures in catamenial (menstrual‐related) epilepsy (2021) · Cochrane
no estimate extractedNRNo studies
Progesterone vs placebo
Quality of life · women with seizures due to catamenial epilepsy
Treatments for seizures in catamenial (menstrual‐related) epilepsy (2021) · Cochrane
no estimate extractedNRNo studies
Norethisterone vs placebo
Responder rate · women with seizures due to catamenial epilepsy
Treatments for seizures in catamenial (menstrual‐related) epilepsy (2021) · Cochrane
no estimate extractedNRNo studies
Norethisterone vs placebo
Quality of life · women with seizures due to catamenial epilepsy
Treatments for seizures in catamenial (menstrual‐related) epilepsy (2021) · Cochrane
no estimate extractedNRNo studies
Ketogenic diet (KD) vs usual care
Cognition and behaviour · adults (aged 16 years and over) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Ketogenic diet (KD) vs usual care
Quality of life · adults (aged 16 years and over) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Ketogenic diets (KDs) vs other KDs
Cognition and behaviour · children (aged 4 months to 16 years) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Ketogenic diets (KDs) vs other KDs
Quality of life · children (aged 4 months to 16 years) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Ketogenic diets (KDs) vs other KDs
Cognition and behaviour · adults (aged 18 years and over) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Ketogenic diets (KDs) vs other KDs
Quality of life · adults (aged 18 years and over) with drug‐resistant epilepsy
Ketogenic diets for drug‐resistant epilepsy (2020) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Functional outcome (number of people with disabilities) · people with postcraniotomy seizures
Antiepileptic drugs as prophylaxis for postcraniotomy seizures (2020) · Cochrane
no estimate extractedNRNo studies
Interventions for vs no intervention
Number of other deaths (unrelated to SUDEP) · cases of SUDEP and matched controls (number of deaths due to SUDEP) and consecutive people with epilepsy from a…
Treatments for the prevention of Sudden Unexpected Death in Epilepsy (SUDEP) (2020) · Cochrane
no estimate extractedNRNo studies
Interventions for vs no intervention
Number of hospital attendances for seizures · cases of SUDEP and matched controls (number of deaths due to SUDEP) and consecutive people with epilepsy from a…
Treatments for the prevention of Sudden Unexpected Death in Epilepsy (SUDEP) (2020) · Cochrane
no estimate extractedNRNo studies