Evidence map›Paper›PMID 31093884›Full record

ArticleNeurocritical care2020

Heart Rate Variability as a Biomarker of Neurocardiogenic Injury After Subarachnoid Hemorrhage.

Murad Megjhani, Farhad Kaffashi, Kalijah Terilli, Ayham Alkhachroum, Behnaz Esmaeili, Kevin William Doyle, Santosh Murthy, Angela G Velazquez, E Sander Connolly, David Jinou Roh and 5 more

Abstract read
In one paragraph

Article in Neurocritical care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Review
  9. Article
  10. Development of a predictive nomogram for 28-day mortality risk in non-traumatic or post-traumatic subarachnoid hemorrhage patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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

15 authors.

Murad MegjhaniDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Farhad KaffashiCase School of Engineering, Case Western Reserve University, Cleveland, USA.
Kalijah TerilliDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Ayham AlkhachroumDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Behnaz EsmaeiliDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Kevin William DoyleDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Santosh MurthyDepartment of Neurology, Weill Cornell Medical College, New York, USA.
Angela G VelazquezDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
E Sander ConnollyDepartment of Neurosurgery, Columbia University Irving Medical Center, New York, USA.
David Jinou RohDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Sachin AgarwalDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Ken A LoparoCase School of Engineering, Case Western Reserve University, Cleveland, USA.
Jan ClaassenDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Amelia BoehmeDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA.
Soojin ParkDepartment of Neurology, Columbia University Irving Medical Center, 177 Fort Washington Ave, 8 Milstein-300 Center, New York, NY, 10032, USA. spark@columbia.edu.

Funding

Miami Clinical and Translational Science InstituteUL1TR002736 · NCATS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI CARRASQUILLO, OLVEEN, KOBETZ, ERIN N · 2018 to 2022
$23.2M
Multiparametric Prediction of Vasospasm after Subarachnoid HemorrhageK01ES026833 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PARK, SOOJIN · 2015 to 2019
$1.1M
Intracerebral Hemorrhage and Increased Risk of Arterial ThromboembolismK23NS105948 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI MURTHY, SANTOSH BHASKAR · 2018 to 2022
$972k
Crowd-Sourced Traffic Data: Predicting Air Pollution & Ischemic StrokeR21ES030093 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BOEHME, AMELIA K, HILPERT, MARKUS · 2019 to 2021
$450k
Racial Disparities, Influenza Like Illness and the Association between Short-term Exposure to Ambient Air Pollution and Cardiovascular OutcomesR21MD012451 · NIMHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BOEHME, AMELIA K · 2017 to 2018
$440k
Health Disparities in Sepsis as a Risk Factor for StrokeR03NS101417 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BOEHME, AMELIA K · 2017 to 2018
$160k
NCATS NIH HHS UL1 TR002736NIEHS NIH HHS K01 ES026833NIMHD NIH HHS R21 MD012451NINDS NIH HHS K23 NS105948NINDS NIH HHS R03 NS101417
6 · The paper itself

Abstract

backgroundThe objective of this study was to examine whether heart rate variability (HRV) measures can be used to detect neurocardiogenic injury (NCI).

methodsThree hundred and twenty-six consecutive admissions with aneurysmal subarachnoid hemorrhage (SAH) met criteria for the study. Of 326 subjects, 56 (17.2%) developed NCI which we defined by wall motion abnormality with ventricular dysfunction on transthoracic echocardiogram or cardiac troponin-I > 0.3 ng/mL without electrocardiogram evidence of coronary artery insufficiency. HRV measures (in time and frequency domains, as well as nonlinear technique of detrended fluctuation analysis) were calculated over the first 48 h. We applied longitudinal multilevel linear regression to characterize the relationship of HRV measures with NCI and examine between-group differences at baseline and over time.

resultsThere was decreased vagal activity in NCI subjects with a between-group difference in low/high frequency ratio (β 3.42, SE 0.92, p = 0.0002), with sympathovagal balance in favor of sympathetic nervous activity. All time-domain measures were decreased in SAH subjects with NCI. An ensemble machine learning approach translated these measures into a classification tool that demonstrated good discrimination using the area under the receiver operating characteristic curve (AUROC 0.82), the area under precision recall curve (AUPRC 0.75), and a correct classification rate of 0.81.

conclusionsHRV measures are significantly associated with our label of NCI and a machine learning approach using features derived from HRV measures can classify SAH patients that develop NCI.

Indexed as

Stroke VolumeAdultAgedBrain IschemiaEchocardiographyElectrocardiographyFemaleGlasgow Coma ScaleHeart RateHumansMaleMiddle AgedSeverity of Illness IndexSubarachnoid HemorrhageTroponin IVentricular Dysfunction, LeftTroponin IData miningHeart rate variabilityMachine learningMyocardial stunningNeurocardiogenicSubarachnoid hemorrhage

Identifiers

PMID31093884
PMCPMC6856427

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.