Evidence map›Paper›PMID 31823514›Full record

Observational studyESC heart failure2020

Prognostic role of NYHA class in heart failure patients undergoing primary prevention ICD therapy.

Sem Briongos-Figuero, Alvaro Estévez, M Luisa Pérez, José B Martínez-Ferrer, Enrique García, Xavier Viñolas, Ángel Arenal, Javier Alzueta, Roberto Muñoz-Aguilera

Abstract readObservational Study
In one paragraph

Observational study in ESC heart failure, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Prognostic value of quality of life and functional status in patients with heart failure: a systematic review and meta-analysis.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2024
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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

9 authors.

Sem Briongos-FigueroHospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain.
Alvaro EstévezHospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain.
M Luisa PérezComplejo Hospitalario Universitario A Coruña, A Coruña, Spain.
José B Martínez-FerrerHospital Universitario de Áraba, Álava, Spain.
Enrique GarcíaComplejo Hospitalario Universitario de Vigo, Vigo, Spain.
Xavier ViñolasHospital Santa Creu i Sant Pau, Barcelona, Spain.
Ángel ArenalHospital Universitario Gregorio Marañón, Madrid, Spain.
Javier AlzuetaHospital Virgen de la Victoria, Málaga, Spain.
Roberto Muñoz-AguileraHospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsConcerns about the prognostic value of NYHA functional class (FC) in heart failure (HF) patients carrying a prophylactic implantable cardioverter defibrillator (ICD) are still present. We aimed to compare whether mortality and arrhythmic risk were different, in a cohort of HF patients undergoing ICD-only implant, according to their FC. METHODS AND

resultsHF patients with left ventricle ejection fraction (LVEF) ≤35%, undergoing first prophylactic ICD-only implant were collected from a multicentre nationwide registry (2006-2015). Six hundred and twenty-one patients were identified (101 patients in NYHA I; 411 in NYHA II; 109 in NYHA III). After a mean follow-up of 4.4 years (±2.1), 126 patients died (20.3%). All-cause mortality risk was higher in symptomatic patients: 13.9% in NYHA I patients, 18.3% in NYHA II patients (HR: 1.8, 95% CI 1.1-3.2), and 32.9% in NYHA III patients (HR: 3.9, 95% CI 2.1-7.3). Seventy-eight out of all deaths were due to cardiovascular causes (12.6%). Cardiovascular mortality risk was also higher in symptomatic patients: 6.9% in NYHA I patients, 11% in NYHA II patients (HR: 2.2, 95% CI 1.1-4.9), and 23.9% in NYHA III (HR: 5.5, 95% CI 2.4-12.7). One hundred and seventeen patients received a first appropriate ICD therapy (19.4%). Arrhythmia free survival did not differ among study groups [20.8% in NYHA I patients, 18.7% in NYHA II (HR: 1.1, 95% CI 0.6-1.7) and 20.8% in NYHA III patients (HR: 1.3, 95% CI 0.7-2.5)]. NYHA class independently predicted cardiovascular mortality (NYHA III vs. NYHA I: HR, 4.7; 95% CI, 1.7-12.8, P = 0.002; NYHA II vs. NYHA I: HR, 2.1, 95% CI, 1.0-5.6, P = 0.05) but not all-cause death (NYHA III vs. NYHA I: HR: 1.8, 95% CI 0.8-3.9, P = 0.11; NYHA II vs. NYHA I: HR, 1.1, 95% CI 0.6-2.2, P = 0.71;). Atrial fibrillation, chronic kidney disease, and diabetes emerged as predictors of both all-cause death [(HR: 1.8, 95% CI 1.2-2.8, P = 0.005), (HR: 2.2, 95% CI 1.4-3.4, P < 0.001), (HR: 2.0, 95% CI 1.3-3.1, P = 0.001), respectively] and cardiovascular mortality [(HR: 1.8, 95% CI 1.1-3.1, P = 0.02), (HR: 3.1, 95% CI 1.8-5.4, P < 0.001), (HR: 1.7, 95% CI 1.1-3, P = 0.032), respectively].

conclusionsMortality in HF patients undergoing prophylactic ICD implantation was higher in symptomatic patients. NYHA functional class along with other comorbidities might be helpful to identify a subgroup of ICD carriers with poorer prognosis and higher risk of cardiovascular death.

Indexed as

Cause of DeathDeath, Sudden, CardiacDefibrillators, ImplantableFemaleFollow-Up StudiesHeart FailureHumansIncidenceMaleMiddle AgedPrimary PreventionPrognosisRetrospective StudiesRisk FactorsSpainStroke VolumeImplantable cardioverter defibrillatorNYHA functional classPrognosis

Identifiers

PMID31823514
PMCPMC7083467

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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.