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Clinical correlation and prognostic implication of periodic EEG patterns: A cohort study.
Han-Tao Li1, Tony Wu1, Wey-Ran Lin2
1Section of Epilepsy, Department of Neurology, Chang Gung Memorial Hospital at Linkou Medical Center and Chang Gung University College of Medicine, Taoyuan, Taiwan.
Epilepsy Research
|March 1, 2017
Summary
Periodic discharges (PDs) are linked to comorbidities and seizures. Antiepileptic drug use, however, correlates with reduced mortality in patients with PDs, indicating a potential protective effect.
Area of Science:
- Neurology
- Clinical Neurophysiology
Background:
- Periodic discharges (PDs) are increasingly researched, yet large-scale clinical studies on their prognostic significance are limited.
- Understanding the clinical implications of PDs is crucial for patient management and outcome prediction.
Purpose of the Study:
- To evaluate the clinical implications of periodic discharges (PDs).
- To determine the prognostic value of PDs in a patient cohort.
Main Methods:
- A single-center retrospective cohort study including 420 patients undergoing electroencephalographic (EEG) recording.
- Analysis of demographic data, seizure events, antiepileptic drug (AED) use, and hospital discharge outcomes.
- Multivariate logistic regression was employed to identify predictors of functional outcomes.
Main Results:
- Old age (>65 years) was the strongest mortality predictor (OR=2.55).
- Other mortality predictors included systemic infection, anoxic encephalopathy, cefepime encephalopathy, and status epilepticus.
- Antiepileptic drug use was associated with significantly lower mortality (OR=0.50, P=0.02).
Conclusions:
- Periodic discharges (PDs) are associated with increased comorbidities and recent seizures.
- Antiepileptic drug administration showed a protective association against mortality in this patient group.
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