Purpose of Review Refractory status epilepticus (RSE) is a neurological emergency with high mortality and multisystemic comorbidities. Rapid diagnosis and early detection of complications can decrease early mortality and decrease severe long-term effects. Status epilepticus (SE) has multisystemic complications involving essential organs, rapidly inducing neuronal death programming, severe cardiopulmonary insults, hemodynamic collapse and other systems failure. In this review, based on recent basic science research, observational studies and case series, we will go over the concepts of status and categories, common local and systemic physiopathological changes and clinical manifestations of these time sensitive medical complications. More research and updates are needed to establish how medical therapy, with old and new antiseizure medication and ICU interventions can prevent or minimize complications. Recent Findings There are many areas of ongoing investigation and can represent more recent developments or evolving understandings:<UnorderedList Mark="Bullet"> <ItemContent> Neuroinflammation: The role of neuroinflammation and inflammatory cytokines (IL-1β and TNF-α) in the induction and exacerbation of status epilepticus is an area of active research. Animal models and serological biomarkers have elucidated the central role of neuroinflammation in initiating and perpetrating the pathogenic process leading to SE. </ItemContent> <ItemContent> Autoimmune Encephalitis: The association between autoimmune conditions and refractory status epilepticus, particularly NMDA receptor encephalitis, paraneoplastic encephalitis, and lupus vasculitis, and the need for immunotherapy in these cases. Targeting inflammatory pathways and cytokines is essential when treating and mitigating injury induced by SE. </ItemContent> <ItemContent> Non-Convulsive Status Epilepticus (NCSE): The challenges in diagnosing NCSE, its increasing prevalence, especially in the elderly, and the association with poorer outcomes and specific comorbidities. The use of continuous video EEG and other EEG methods can help detecting NCSE sooner and may improve outcomes and decrease neurological and systemic sequelae of RSE. </ItemContent> <ItemContent> The Relationship between Seizure Duration and Complications: The duration of status epilepticus is a cardinal point in determining complications. Mortality rates increase significantly as status epilepticus (SE) progresses to super-refractory status epilepticus (SRSE). </ItemContent> </UnorderedList> Summary Status Epilepticus (SE) is a severe neurological emergency characterized by prolonged seizures that disrupt brain function and trigger a cascade of systemic complications. These complications span multiple organ systems, including neurological deficits, cardiac arrhythmias, respiratory failure, renal dysfunction, and gastrointestinal issues, often exacerbated by the metabolic demands of the seizures and the side effects of treatment. Prompt diagnosis and management of underlying causes, along with vigilance for potential complications, are crucial to improving outcomes and reducing the high mortality associated with SE, particularly in its refractory and non-convulsive forms.

Systemic Complications of Status Epilepticus

期刊论文
发表日期：

2025年10月9日

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Antonio H. Iglesias,
Alexandra Balabanov,
Ashley Raedy

摘要

Purpose of Review

Refractory status epilepticus (RSE) is a neurological emergency with high mortality and multisystemic comorbidities. Rapid diagnosis and early detection of complications can decrease early mortality and decrease severe long-term effects. Status epilepticus (SE) has multisystemic complications involving essential organs, rapidly inducing neuronal death programming, severe cardiopulmonary insults, hemodynamic collapse and other systems failure. In this review, based on recent basic science research, observational studies and case series, we will go over the concepts of status and categories, common local and systemic physiopathological changes and clinical manifestations of these time sensitive medical complications. More research and updates are needed to establish how medical therapy, with old and new antiseizure medication and ICU interventions can prevent or minimize complications.

Recent Findings

There are many areas of ongoing investigation and can represent more recent developments or evolving understandings:

Neuroinflammation: The role of neuroinflammation and inflammatory cytokines (IL-1β and TNF-α) in the induction and exacerbation of status epilepticus is an area of active research. Animal models and serological biomarkers have elucidated the central role of neuroinflammation in initiating and perpetrating the pathogenic process leading to SE.

Autoimmune Encephalitis: The association between autoimmune conditions and refractory status epilepticus, particularly NMDA receptor encephalitis, paraneoplastic encephalitis, and lupus vasculitis, and the need for immunotherapy in these cases. Targeting inflammatory pathways and cytokines is essential when treating and mitigating injury induced by SE.

Non-Convulsive Status Epilepticus (NCSE): The challenges in diagnosing NCSE, its increasing prevalence, especially in the elderly, and the association with poorer outcomes and specific comorbidities. The use of continuous video EEG and other EEG methods can help detecting NCSE sooner and may improve outcomes and decrease neurological and systemic sequelae of RSE.

The Relationship between Seizure Duration and Complications: The duration of status epilepticus is a cardinal point in determining complications. Mortality rates increase significantly as status epilepticus (SE) progresses to super-refractory status epilepticus (SRSE).

Summary

Status Epilepticus (SE) is a severe neurological emergency characterized by prolonged seizures that disrupt brain function and trigger a cascade of systemic complications. These complications span multiple organ systems, including neurological deficits, cardiac arrhythmias, respiratory failure, renal dysfunction, and gastrointestinal issues, often exacerbated by the metabolic demands of the seizures and the side effects of treatment. Prompt diagnosis and management of underlying causes, along with vigilance for potential complications, are crucial to improving outcomes and reducing the high mortality associated with SE, particularly in its refractory and non-convulsive forms.