Evidence map›Paper›PMID 24793459›Full record

Observational studyHeart rhythm2014

Outcomes in African Americans undergoing cardioverter-defibrillator implantation for primary prevention of sudden cardiac death: findings from the Prospective Observational Study of Implantable Cardioverter-Defibrillators (PROSE-ICD).

Yiyi Zhang, Robert Kennedy, Elena Blasco-Colmenares, Barbara Butcher, Sanaz Norgard, Zayd Eldadah, Timm Dickfeld, Kenneth A Ellenbogen, Joseph E Marine, Eliseo Guallar and 2 more

Open access · greenAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Heart rhythm, 2014. 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
0.8field-weighted citation impact, top 25% 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, 14 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Race, ethnicity, and the risk of sudden death<sup/>.Trends in cardiovascular medicine · 2019
    Review
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

12 authors at 6 institutions in 1 country.

Yiyi ZhangDepartments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland.
Robert KennedyMunson Medical Center, Traverse City, Michigan.
Elena Blasco-ColmenaresDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Barbara ButcherDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Sanaz NorgardDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Zayd EldadahWashington Hospital Center, Washington, DC.
Timm DickfeldUniversity of Maryland, Baltimore, Maryland.
Kenneth A EllenbogenMedical College of Virginia, Richmond, Virginia.
Joseph E MarineDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Eliseo GuallarDepartments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland.
Gordon F TomaselliDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Alan ChengDivision of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland. Electronic address: alcheng@jhmi.edu.
Johns Hopkins University · USJohns Hopkins Medicine · USMedStar Washington Hospital Center · USMunson Medical Center · USUniversity of Maryland, Baltimore · USVirginia Commonwealth University Medical Center · US

Funding

Fundamental Biology of SCD and its Application to Identify Patients at RiskR01HL091062 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI TOMASELLI, GORDON FRANK · 2009 to 2013
$3.4M
Metabolome-wide anaysis for the risk-stratification of sudden cardiac deathR01HL103946 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHENG, ALAN · 2010 to 2014
$3.1M
NHLBI NIH HHS R01 HL091062NHLBI NIH HHS R01HL091062NHLBI NIH HHS R01 HL103946NHLBI NIH HHS R01HL103946
6 · The paper itself

Abstract

backgroundImplantable cardioverter-defibrillators (ICDs) reduce the risk of death in patients with left ventricular dysfunction. Little is known regarding the benefit of this therapy in African Americans (AAs).

objectiveThe purpose of this study was to determine the association between AA race and outcomes in a cohort of primary prevention ICD patients.

methodsWe conducted a prospective cohort study of patients with systolic heart failure who underwent ICD implantation for primary prevention of sudden cardiac death. The primary end-point was appropriate ICD shock defined as a shock for rapid ventricular tachyarrhythmias. The secondary end-point was all-cause mortality.

resultsThere were 1189 patients (447 AAs and 712 non-AAs) enrolled. Over a median follow-up of 5.1 years, a total of 137 patients experienced an appropriate ICD shock, and 343 died (294 of whom died without receiving an appropriate ICD shock). The multivariate adjusted hazard ratio (95% confidence interval) comparing AAs vs non-AAs were 1.24 (0.96-1.59) for all-cause mortality, 1.33 (1.02, 1.74) for all-cause mortality without receiving appropriate ICD shock, and 0.78 (0.51, 1.19) for appropriate ICD shock. Ejection fraction, diabetes, and hypertension appeared to explain 24.1% (10.1%-69.5%), 18.7% (5.3%-58.0%), and 13.6% (3.8%-53.6%) of the excess risk of mortality in AAs, with a large proportion of the mortality difference remaining unexplained.

conclusionIn patients with primary prevention ICDs, AAs had an increased risk of dying without receiving an appropriate ICD shock compared to non-AAs.

Indexed as

Black or African AmericanDefibrillators, ImplantableRisk AssessmentDeath, Sudden, CardiacFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedPrimary PreventionPrognosisProspective StudiesRisk FactorsUnited StatesVentricular Dysfunction, LeftAfrican AmericanAll-cause mortalityImplantable cardioverter-defibrillatorimplantable cardioverter-defibrillator shockSudden cardiac death

Identifiers

PMID24793459
PMCPMC4108523
OpenAlexW1972343030

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.