Related Experiment Videos
Nonconvulsive status epilepticus in the critically ill elderly
Epilepsia
|November 20, 1998
Summary
Nonconvulsive status epilepticus (NCSE) in critically ill elderly patients is linked to severity of illness. Aggressive treatment, including intravenous benzodiazepines, may not improve outcomes and could increase mortality risk.
Area of Science:
- Neurology
- Critical Care Medicine
- Geriatrics
Background:
- Nonconvulsive status epilepticus (NCSE) presents diagnostic challenges in critically ill elderly patients.
- Altered mentation is a common but nonspecific sign of NCSE in this vulnerable population.
Purpose of the Study:
- To characterize the electrographic and clinical features of NCSE in critically ill elderly individuals.
- To identify factors predicting outcomes in elderly patients with NCSE.
Main Methods:
- Prospective identification of 25 NCSE episodes in 24 critically ill elderly patients with epileptiform EEG patterns.
- Exclusion of patients with anoxic encephalopathy.
Main Results:
- Mortality was 52%, with death associated with greater acute medical problems and generalized EEG patterns.
- Antiepileptic drug (AED) efficacy was not demonstrated; intravenous benzodiazepines correlated with increased mortality risk.
- ICU management resulted in longer hospitalizations compared to patients with advance directives.
Conclusions:
- Illness severity is a key determinant of mortality in elderly NCSE patients.
- Intravenous benzodiazepine use may be associated with higher mortality.
- The benefits of aggressive intensive care unit (ICU) management are uncertain, potentially prolonging hospitalization without improving outcomes.