Evidence map›Paper›PMID 31284120›Full record

ArticleEpilepsy research2019

Cardiac changes in epileptic baboons with high-frequency microburst VNS therapy: A pilot study.

Melissa A de la Garza, David Poldiak, Robert Shade, Felipe S Salinas, Alex M Papanastassiou, C Ákos Szabó

Open access · greenAbstract read
In one paragraph

Article in Epilepsy research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 37% 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

4 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
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

6 authors at 3 institutions in 1 country.

Melissa A de la GarzaSouthwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, United States. Electronic address: mdelagarzadvm@gmail.com.
David Poldiakemka TECHNOLOGIES, Inc., Falls Church, VA, United States.
Robert ShadeSouthwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX, United States.
Felipe S SalinasResearch Imaging Institute, UT Health San Antonio, San Antonio, TX, United States; South Texas Veterans Health Care System, San Antonio, TX, United States.
Alex M PapanastassiouResearch Imaging Institute, UT Health San Antonio, San Antonio, TX, United States.
C Ákos SzabóDepartments of Neurology and South Texas Comprehensive Epilepsy Center, UT Health San Antonio, San Antonio, TX, United States.
Texas Biomedical Research Institute · USThe University of Texas Health Science Center at San Antonio · USThe University of Texas Health Science Center at Houston · US

Funding

The Southwest National Primate Research Center Supplement- Infrastructure improvements of ABSL2 holding areasP51OD011133 · OD · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI Larry S. Schlesinger · 2012 to 2026
$129.7M
WNV REPLIVAX VACCINE IN NON-HUMAN PRIMATESP51RR013986 · NCRR · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI GAUDUIN, MARIE-CLAIRE ELISABETH · 1999 to 2011
$79.1M
EXTRAMURAL RES FACILITIES CONSTRC06RR015456 · NCRR · SOUTHWEST FOUNDATION FOR BIOMEDICAL RES · PI VANDEBERG, JOHN L · 2001 to 2001
$1.1M
Brain MRI and Histopathology of the Epileptic BaboonR21NS084198 · NINDS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI SZABO, CHARLES AKOS · 2014 to 2015
$411k
MOLECULAR AND BIOCHEMICAL GENETICS LABORATORY RENOVATIONC06RR013556 · NCRR · SOUTHWEST FOUNDATION FOR BIOMEDICAL RES · PI SHADE, ROBERT E · 1998 to 1998
–
BABOON F-CAGE FACILITY FOR PRIMATE RESEARCH CENTERC06RR014578 · NCRR · SOUTHWEST FOUNDATION FOR BIOMEDICAL RES · PI VANDEBERG, JOHN L · 1999 to 1999
–
NCRR NIH HHS C06 RR013556NCRR NIH HHS C06 RR014578NCRR NIH HHS C06 RR015456NCRR NIH HHS P51 RR013986NIH HHS P51 OD011133NINDS NIH HHS R21 NS084198
6 · The paper itself

Abstract

The epileptic baboon provides a natural model of idiopathic generalized epilepsy and sudden unexpected death in epilepsy (SUDEP). We sought to evaluate autonomic differences, including heart rate (HR), heart rate variability (HRV) and corrected QT-duration (QTc) between two epileptic (EB1, EB2) and one control (CB) baboon, and the autonomic effects of high-frequency (HF) microburst Vagal Nerve Stimulation (VNS) Therapy in the epileptic baboons. At baseline, EB2's HR was increased over both EB1 and CB, and EB1's HRV was decreased compared to the others. QTc-intervals were significantly prolonged in both epileptic baboons. EB1 became free of generalized tonic-clonic seizures (GTCS) with VNS therapy, whereas EB2's GTCS were reduced by a third. HR decreased in both epileptic baboons, but while HRV improved in EB1, it decreased in EB2. EB2 succumbed to SUDEP after 9 months. This pilot study demonstrates abnormalities in HR, HRV and QTc-intervals in epileptic baboons. HF VNS Therapy demonstrated different effects on HRV in the two epileptic baboons, which, in addition to persistent GTCS and elevated HR, may have contributed to SUDEP risk in EB2. Future studies are needed to establish normative values for HRV and determine variability of HR, HRV and QTc-intervals in epileptic baboons.

Indexed as

AnimalsAutonomic Nervous SystemDisease Models, AnimalElectroencephalographyEpilepsyFemaleHeartHeart RatePapioPilot ProjectsVagus Nerve StimulationBaboonEpilepsyHeart rate variabilityHigh-frequency microburst VNS therapyQT-intervals

Identifiers

PMID31284120
PMCPMC6684821
OpenAlexW2953304635

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.