Evidence map›Paper›PMID 33023350›Full record

ArticleJournal of the American Heart Association2020

Baseline and Dynamic Risk Predictors of Appropriate Implantable Cardioverter Defibrillator Therapy.

Katherine C Wu, Shannon Wongvibulsin, Susumu Tao, Hiroshi Ashikaga, Michael Stillabower, Timm M Dickfeld, Joseph E Marine, Robert G Weiss, Gordon F Tomaselli, Scott L Zeger

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01076660 (Left Ventricular Structural Predictors of Sudden Cardiac Death [Substudy of), which is not on this map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.5field-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.

NCT01076660 recruitingnot on this map

Left Ventricular Structural Predictors of Sudden Cardiac Death [Substudy of: Functional Energetics and Imaging for Phenotypic Characterization of Patients at Risk for Sudden Cardiac Death, See Also NCT000181233]

TypeobservationalSponsorJohns Hopkins UniversityRan2003 to 2030Enrolled400ConditionsIschemic Cardiomyopathy, Nonischemic Cardiomyopathy
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Katherine C WuDepartment of Medicine Division of Cardiology Johns Hopkins University School of Medicine Baltimore MD.
Shannon WongvibulsinDepartment of Biomedical Engineering and School of Medicine Johns Hopkins University Baltimore MD.
Susumu TaoDepartment of Medicine Division of Cardiology Johns Hopkins University School of Medicine Baltimore MD.
Hiroshi AshikagaDepartment of Medicine Division of Cardiology Johns Hopkins University School of Medicine Baltimore MD.
Michael StillabowerChristiana Care Health Systems Inc Newark DE.
Timm M DickfeldDepartment of Medicine University of Maryland Medical Systems Baltimore MD.
Joseph E MarineDepartment of Medicine Division of Cardiology Johns Hopkins University School of Medicine Baltimore MD.
Robert G WeissDepartment of Medicine Division of Cardiology Johns Hopkins University School of Medicine Baltimore MD.
Gordon F TomaselliAlbert Einstein College of Medicine and Montefiore Medicine Bronx NY.
Scott L ZegerDepartment of Biostatistics Johns Hopkins Bloomberg School of Public Health Baltimore MD.
Johns Hopkins University · USAlbert Einstein College of Medicine · USChristiana Care Health System · USUniversity of Maryland, Baltimore · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007309 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI COX, ANDREA L · 1985 to 2019
$43.2M
Cardiac MR to Improve Clinical Risk Prediction in Defibrilator PatientsR01HL132181 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI TOMASELLI, GORDON FRANK, WU, KATHERINE C · 2017 to 2020
$3.1M
LV Structural Predictors of Sudden Cardiac DeathR01HL103812 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI WU, KATHERINE C · 2010 to 2013
$1.4M
Sudden Cardiac Arrest (SCA): Prediction and PreventionF30HL142131 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI WONGVIBULSIN, SHANNON · 2018 to 2020
$135k
NHLBI NIH HHS F30 HL142131NHLBI NIH HHS R01 HL103812NHLBI NIH HHS R01 HL132181NIGMS NIH HHS T32 GM007309
6 · The paper itself

Abstract

Background Current approaches fail to separate patients at high versus low risk for ventricular arrhythmias owing to overreliance on a snapshot left ventricular ejection fraction measure. We used statistical machine learning to identify important cardiac imaging and time-varying risk predictors. Methods and Results Three hundred eighty-two cardiomyopathy patients (left ventricular ejection fraction ≤35%) underwent cardiac magnetic resonance before primary prevention implantable cardioverter defibrillator insertion. The primary end point was appropriate implantable cardioverter defibrillator discharge or sudden death. Patient characteristics; serum biomarkers of inflammation, neurohormonal status, and injury; and cardiac magnetic resonance-measured left ventricle and left atrial indices and myocardial scar burden were assessed at baseline. Time-varying covariates comprised interval heart failure hospitalizations and left ventricular ejection fractions. A random forest statistical method for survival, longitudinal, and multivariable outcomes incorporating baseline and time-varying variables was compared with (1) Seattle Heart Failure model scores and (2) random forest survival and Cox regression models incorporating baseline characteristics with and without imaging variables. Age averaged 57±13 years with 28% women, 66% white, 51% ischemic, and follow-up time of 5.9±2.3 years. The primary end point (n=75) occurred at 3.3±2.4 years. Random forest statistical method for survival, longitudinal, and multivariable outcomes with baseline and time-varying predictors had the highest area under the receiver operating curve, median 0.88 (95% CI, 0.75-0.96). Top predictors comprised heart failure hospitalization, left ventricle scar, left ventricle and left atrial volumes, left atrial function, and interleukin-6 level; heart failure accounted for 67% of the variation explained by the prediction, imaging 27%, and interleukin-6 2%. Serial left ventricular ejection fraction was not a significant predictor. Conclusions Hospitalization for heart failure and baseline cardiac metrics substantially improve ventricular arrhythmic risk prediction.

Indexed as

CardiomyopathiesDeath, Sudden, CardiacHeart FailureMagnetic Resonance Imaging, CineTachycardia, VentricularDefibrillators, ImplantableFemaleHeart Disease Risk FactorsHospitalizationHumansInterleukin-6Longitudinal StudiesMachine LearningMaleMiddle AgedPatient SelectionInterleukin-6cardiac magnetic resonance imagingheart failurerisk stratificationsudden cardiac deathventricular arrhythmia

Identifiers

PMID33023350
PMCPMC7763383
OpenAlexW3091891317

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.