Evidence map›Paper›PMID 33454894›Full record

ArticleThe international journal of cardiovascular imaging2021

Inadequately low left ventricular mass in patients with significant aortic stenosis predicts favourable prognostic outcomes.

Nicholas W S Chew, Jinghao Nicholas Ngiam, Benjamin Yong-Qiang Tan, Ching-Hui Sia, Wen Ruan, Hui-Wen Sim, William K F Kong, Edgar L W Tay, Tiong-Cheng Yeo, Kian Keong Poh

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In one paragraph

Article in The international journal of cardiovascular imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. 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

10 authors at 4 institutions in 1 country.

Nicholas W S ChewDepartment of Medicine, National University Health System, Singapore, Singapore.ORCID http://orcid.org/0000-0002-0640-0430
Jinghao Nicholas NgiamDepartment of Medicine, National University Health System, Singapore, Singapore.
Benjamin Yong-Qiang TanDepartment of Medicine, National University Health System, Singapore, Singapore.
Ching-Hui SiaDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore.
Wen RuanDepartment of Cardiology, National Heart Centre Singapore, Singapore, Singapore.
Hui-Wen SimDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore.
William K F KongDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore.
Edgar L W TayDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore.
Tiong-Cheng YeoDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore.
Kian Keong PohDepartment of Cardiology, National University Heart Centre Singapore, National University Health System, 1E Kent Ridge Rd, NUHS Tower Block, Level 9, Singapore, 119228, Singapore. kian_keong_poh@nuhs.edu.sg.
National University of Singapore · SGNational University Health System · SGNational University Heart Centre Singapore · SGNational Heart Centre Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In patients with significant aortic stenosis (AS), the prognostic effect of the increase in left ventricular mass (LVM) in relation to one's hemodynamic load has been described. Inappropriately high LVM has been shown to predict adverse cardiovascular events. However, little is known about the prognostic impact of inadequately low LVM (i-lowLVM) in patients with significant AS. I-lowLVM was defined as the measured LVM < 73% of the predicted LVM based on sex, stroke work and height from the reference adult population, used in previous established studies. For outcome analysis, the end-point was defined as all-cause mortality, aortic valve replacement and/or admission for congestive heart failure. Kaplan-Meier curves and multivariable Cox regression models were constructed to compare outcomes on follow-up. During the follow-up (4.5 ± 4.1 years), 132 patients (11.1%) had i-lowLVM, 868 (73.1%) had adequate-LVM, 188 (15.8%) had inappropriately high LVM. Outcome analysis only included patients with i-lowLVM and adequate-LVM (N = 1000). An adverse composite event occurred in 41.7% of the i-lowLVM group and 52.4% of the adequate-LVM group (p = 0.021). Event-free survival in patients with i-lowLVM and appropriate-LVM was 76% versus 68% at 2-year, 55% versus 46% at 4-year, 33% versus 27% at 6-year, 20% versus 17% at 8-year, and 17% versus 11% at 10-year follow-up, respectively (p < 0.001). Cox analysis revealed that i-lowLVM was independently associated with lower composite adverse outcome (HR 0.624, 95% CI 0.460-0.846, p = 0.002) after adjusting for sex, age, ejection fraction, ischemic heart disease, diabetes and transaortic valve mean gradient. In the separate Cox subanalyses, the presence of i-lowLVM remained a predictor of lower composite adverse outcome in the severe AS subgroup (HR 0.587, 95% CI 0.396-0.870, p = 0.008), and the LVH subgroup (HR 0.574, 95% CI 0.401-0.824, p = 0.003) after adjusting for confounders. I-lowLVM despite significant AS may represent a distinct group that is associated with improved survival outcomes independent of other prognostic covariates.

Indexed as

Aortic Valve StenosisHeart Valve ProsthesisAortic ValveHumansHypertrophy, Left VentricularPredictive Value of TestsPrognosisStroke VolumeVentricular Function, LeftAortic stenosisLeft ventricular hypertrophyLeft ventricular mass

Identifiers

PMID33454894
OpenAlexW3125462072

What OpenQuestion holds

Textmetadata
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.