ArticleSeizure2025
Respiratory modulation of heart rate variability after generalized convulsive seizures.
Article in Seizure, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Prolonged postictal hypercapnia is associated with delayed recovery of consciousness after generalized convulsive seizure.Seizure · 2026Article
- Severe, Non-apneic Respiratory Dysfunction and Hypoxia following Generalized Convulsive Seizures.Annals of neurology · 2026Article
- Association of Interictal Respiratory Variability and Severity of Postictal Hypoxemia After Generalized Convulsive Seizures.Neurology · 2026Article
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Authors and funding
12 authors.
Funding
Abstract
backgroundAutonomic function is modulated by the respiratory network. We therefore hypothesized that in persons with epilepsy (PWE), generalized convulsive seizures (GCS) would induce greater heart rate variability (HRV) and parasympathetic activation in patients with low interictal central CO
methodsWe performed a retrospective analysis of PWE admitted to an epilepsy monitoring unit for video-EEG study and experienced GCS. Time synchronized video-EEG, ECG, respiratory effort, and airflow were continuously measured along with transcutaneous CO
resultsTwenty-six patients had both a GCS and an interictal HCVR. Mean age was 36.6 (±11.8) years and mean duration of epilepsy 16.2 (±12.0) years. Interictal HCVR slope varied from -0.13 to 5.2 (median 2.1) L/min/mm Hg and was not related to postictal RMSSD or the change in RMSSD (interictal wake - postictal) induced by GCS (p > 0.11). In contrast, duration of postictal hypercapnia and oxygen desaturation were both significantly correlated with overall postictal HRV (SDNN) and with multiple HRV measures of parasympathetic tone (RMSSD, HF power, Cardiac Vagal Index). In multivariate analyses, duration of postictal oxygen desaturation was positively associated with increased postictal RMSSD (mean ratio 1.09, 95 % CI 1.04-1.14, p < 0.01).
conclusionsPostictal ventilation and oxygenation are tightly coupled to multiple measures of heart rate variability, consistent with respiratory modulation of the autonomic nervous system. Patients with more severe postictal respiratory depression exhibit greater parasympathetic activity after GCS even while the frequent occurrence of postictal tachycardia suggests a concomitant increase in sympathetic activity. These results have implications for the interpretation of postictal bradycardia and respiratory dysfunction and their relationships to sudden unexpected death in epilepsy.
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