Electroencephalographic criteria for nonconvulsive status epilepticus: Synopsis and comprehensive survey

  title={Electroencephalographic criteria for nonconvulsive status epilepticus: Synopsis and comprehensive survey},
  author={Raoul Sutter and Peter W. Kaplan},
There have been many attempts at defining the electroencephalography (EEG) characteristics of nonconvulsive status epilepticus (NCSE) without a universally accepted definition. This lack of consensus arises because the EEG expression of NCSE does not exist in isolation, but reflects status epilepticus under the variety of pathologic conditions that occur with age, cerebral development, encephalopathy, and epilepsy syndrome. Current NCSE definitions include “boundary conditions,” in which… 

Evolving Concepts of Nonconvulsive Status Epilepticus

Most diagnosed NCSE is of a very “non-classic” type, occurring in patients with concomitant medical, neurologic, and traumatic illnesses contributing to and confounding the diagnosis of NCSE.

Nonconvulsive status epilepticus in adults — insights into the invisible

This Review compiles epidemiological, clinical and diagnostic aspects of NCSE, and considers current treatment options and prognosis.

The Management of Nonconvulsive Status Epilepticus in Adults

Patients without return to baseline after cessation of clinical seizure activity should be evaluated with continuous electroencephalogram monitoring and management should include abortive therapy with benzodiazepines and concurrent loading of a non-sedating anti-seizure drug (ASD).

Analysis of electroclinical features of nonconvulsive status epilepticus: a study of four cases

The nonconvulsive status epilepticus (NCSE) is an epileptic condition characterized by little or no obvious symptoms, thus is often easily to be underrecognized, underdiagnosed or even undetected by

Nonconvulsive Status Epilepticus in Adults: Types, Pathophysiology, Epidemiology, Etiology, and Diagnosis

It is germane to extensively search for the cause of the NCSE because the immediate and proper therapy of the underlying cause of, especially the acute symptomatic, forms of NCSE is at least as important as the antiictal treatment.

Initial Treatment of Nonconvulsive Status Epilepticus

There is currently a state of equipoise on how NCSE in coma should be managed or indeed, how aggressive and persistent treatment should be in this condition.

Applications of Electroencephalography in Status Epilepticus

This chapter briefly introduces the history of EEG, its technical parameters, the principles used in interpreting abnormal EEGs, the association between EEG results and prevalent types of SE, the role of EEG in the treatment and prognosis of various pathologies, and the additional uses of EEG.

The diagnostic dilemma of non-convulsive status epilepticus in sporadic Creutzfeldt-Jakob disease

Findings may support the hypothesis of initial NCSE and transformation into prion protein induced encephalopathic EEG and demonstrated clinical usefulness of the Salzburg consensus criteria for NCSE.

Periodic Slow Waves Presenting as Ictal Electroencephalography Findings in Complex Partial Status Epilepticus

2 cases of complex partial status epilepticus in which routine EEG showed PSWs without epileptiform activity during the clinical ictal phase are reported, showing that PSWs may appear as ictAL electrographic changes in NCSE.



EEG criteria for nonconvulsive status epilepticus

Nonconvulsive status epilepticus (NCSE) represents a prolonged state of seizure(s) (status epilepticus—SE) without marked motor manifestations. NCSE typically encompasses an ictal impairment of

Nonconvulsive status epilepticus and coma

The authors suggest distinguishing NCSE proper and comatose NCSE, which includes coma with continuous lateralized discharges or generalized epileptiform discharges (coma‐LED, coma‐GED), which could act as a starting point to solve terminologic and factual confusion.

Nonconvulsive status epilepticus and continuous spike and slow wave of sleep in children.

  • Ç. Akman
  • Medicine, Psychology
    Seminars in pediatric neurology
  • 2010

Diagnosis and management of nonconvulsive status epilepticus in children

Specific data in childhood are clearly lacking, but extrapolation from adult studies indicates that aggressive treatment is most warranted in comatose patients, and a cautious approach seems to be indicated for absence status epilepticus, complex partial status epilepsypticus and electrical status epileptus during sleep.

Nonconvulsive status epilepticus: a diagnostic and therapeutic challenge in the intensive care setting

The focus of this review lies on clinical presentations and electroencephalogram features of comatose patients treated on ICUs and possible diagnostic pitfalls.

An assessment of nonconvulsive seizures in the intensive care unit using continuous EEG monitoring

Acute symptomatic cases could not be adequately classified as either absence, simple, or complex partial status epilepticus when the impairment of consciousness arose from the initial illness.

Nonconvulsive Status Epilepticus in Adults and Children

Nonconvulsive status epilepticus (SE) accounts for approximately one‐quarter of all cases of SE and treatment includes antiepileptic drug(s) (AEDs) and avoidance of seizure precipitants.

Cefixime-induced nonconvulsive status epilepticus

The importance and the difficulty to choose secure antibiotic treatment in epileptic patients, the possible mechanisms by which cephalosporins induce neurotoxicity and the need to stress family components questioning about new drugs assumed are outlined.