Evidence map›Paper›PMID 37344924›Full record

ArticleEpilepsia2023

Interictal respiratory variability predicts severity of hypoxemia after generalized convulsive seizures.

Rup K Sainju, Deidre N Dragon, Harold B Winnike, Laura Vilella, Xiaojin Li, Samden Lhatoo, Patrick Ten Eyck, Linder H Wendt, George B Richerson, Brian K Gehlbach

Open access · bronzeAbstract read
In one paragraph

Article in Epilepsia, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 23 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Rup K SainjuDepartment of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.ORCID 0000-0002-8414-1972
Deidre N DragonDepartment of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.
Harold B WinnikeInstitute for Clinical and Translational Science, University of Iowa, Iowa City, Iowa, USA.
Laura VilellaDepartment of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA.ORCID 0000-0003-2621-4413
Xiaojin LiDepartment of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA.
Samden LhatooDepartment of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA.ORCID 0000-0002-0260-3855
Patrick Ten EyckInstitute for Clinical and Translational Science, University of Iowa, Iowa City, Iowa, USA.
Linder H WendtInstitute for Clinical and Translational Science, University of Iowa, Iowa City, Iowa, USA.
George B RichersonDepartment of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.
Brian K GehlbachDepartment of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.ORCID 0000-0003-3160-1741
University of Iowa · USThe University of Texas Health Science Center · USUniversity of Iowa Hospitals and Clinics · US

Funding

The University of Iowa Clinical and Translational Science AwardUL1TR002537 · NCATS · UNIVERSITY OF IOWA · PI HANSEN, MARLAN R, WINOKUR, PATRICIA · 2018 to 2022
$20.0M
SUDEP Translational Research Alliance (SUTRA): Autonomic and Imaging Biomarkers of SUDEP; SUTRA 3 of 7U01NS090407 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI DIEHL, BEATE, HARPER, RONALD MARVEN · 2014 to 2018
$7.3M
The role of central CO2 chemosensitivity in postictal respiratory depression and SUDEPR01NS113764 · NINDS · UNIVERSITY OF IOWA · PI Brian Gehlbach, GEORGE B RICHERSON · 2019 to 2026
$5.5M
SUDEP Research Alliance: Respiratory and Arousal Mechanisms, Application 5 of 7U01NS090414 · NINDS · UNIVERSITY OF IOWA · PI RICHERSON, GEORGE B · 2014 to 2018
$3.3M
The Administrative Core of the Center of SUDEP ResearchU01NS090405 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LHATOO, SAMDEN, NOEBELS, JEFFREY · 2014 to 2018
$3.2M
NCATS NIH HHS UL1 TR002537NINDS NIH HHS R01 NS113764NINDS NIH HHS U01 NS090405NINDS NIH HHS U01 NS090407NINDS NIH HHS U01 NS090414
6 · The paper itself

Abstract

objectiveSevere respiratory dysfunction induced by generalized convulsive seizures (GCS) is now thought to be a common mechanism for sudden unexpected death in epilepsy (SUDEP). In a mouse model of seizure-induced death, increased interictal respiratory variability was reported in mice that later died of respiratory arrest after GCS. We studied respiratory variability in epilepsy patients as a predictive tool for severity of postictal hypoxemia, a potential biomarker for SUDEP risk. We then explored the relationship between respiratory variability and central CO

methodsWe reviewed clinical, video-electroencephalography, and respiratory (belts, airflow, pulse oximeter, and HCVR) data of epilepsy patients. Mean, SD, and coefficient of variation (CV) of interbreath interval (IBI) were calculated. Primary outcomes were: (1) nadir of capillary oxygen saturation (SpO

resultsOf 66 GCS recorded in 131 subjects, 30 had interpretable respiratory data. In the multivariate model with the lowest AIC value, duration of epilepsy was a significant predictor of duration of oxygen desaturation. Duration of tonic phase and CV of IBI during the third postictal minute correlated with SpO SIGNIFICANCE: These results indicate that interictal respiratory variability predicts severity of postictal oxygen desaturation, suggesting its utility as a potential biomarker. They also suggest that interictal respiratory control may be abnormal in some patients with epilepsy.

Indexed as

EpilepsyEpilepsy, GeneralizedRespiration DisordersSudden Unexpected Death in EpilepsyElectroencephalographyHumansHypercapniaHypoxiaOxygenSeizuresOxygenepilepsyGCShypercapniahypoxiaSUDEP

Identifiers

PMID37344924
PMCPMC10538446
OpenAlexW4381599022

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.