Evidence map›Paper›PMID 28772033›Full record

ArticleESC heart failure2017

Associations between acylcarnitine to free carnitine ratio and adverse prognosis in heart failure patients with reduced or preserved ejection fraction.

Akiomi Yoshihisa, Shunsuke Watanabe, Tetsuro Yokokawa, Tomofumi Misaka, Takamasa Sato, Satoshi Suzuki, Masayoshi Oikawa, Atsushi Kobayashi, Yasuchika Takeishi

Open access · goldAbstract read
In one paragraph

Article in ESC heart failure, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

29 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
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  6. Early Sepsis Metabolic Changes in Kidney and Liver Precede Clinical Evidence of Organ Dysfunction.American journal of respiratory cell and molecular biology · 2025
    Article
  7. Carnitine metabolism in hypertensive heart failure.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Article
  8. Heart failure treatment and serum carnitines in HFpEF and HFrEF with or without hypertension - a pilot study.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Article
  9. Article
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  11. Review
  12. Review
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  15. Review
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  18. Article
  19. Acylcarnitines: Can They Be Biomarkers of Diabetic Nephropathy?Diabetes, metabolic syndrome and obesity : targets and therapy · 2022
    Review
  20. 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

9 authors at 1 institution in 1 country.

Akiomi YoshihisaDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Shunsuke WatanabeDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Tetsuro YokokawaDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Tomofumi MisakaDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Takamasa SatoDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Satoshi SuzukiDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Masayoshi OikawaDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Atsushi KobayashiDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Yasuchika TakeishiDepartment of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
Fukushima Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe failing heart is accompanied by disturbed energy metabolism with mitochondrial dysfunction. Carnitine transports fatty acids into mitochondria for β-oxidation. Decreased myocardial carnitine levels accompanied by increased plasma carnitine levels in heart failure (HF) have been reported. The plasma acylcarnitine to free carnitine ratio (AC/FC) is recognized as a marker of carnitine deficiency. We aimed to investigate the impact of the AC/FC on HF prognosis, taking into consideration differences between HF patients with preserved ejection fraction (HFpEF) and those with reduced ejection fraction (HFrEF). METHODS AND

resultsConsecutive 168 HF patients were divided into three groups based on their AC/FC: first to third tertiles (n = 56, respectively). We followed up all patients for cardiac events including cardiac death and/or worsening HF. During the follow-up period (1004 days), there were 23 cardiac deaths and 28 worsening HF. In the Kaplan-Meier analysis, the cardiac event rate of the third group was highest among the three groups (P = 0.022). In the Cox proportional hazard analysis, AC/FC was a predictor of cardiac events (P = 0.007). When HFpEF (n = 79) and HFrEF (n = 89) were analysed separately, the cardiac event rate of the third group was highest with regard to HFpEF (P = 0.008), but not HFrEF (P = 0.321). In the Cox proportional hazard analysis, AC/FC was a predictor of cardiac events with regard to HFpEF (P = 0.031), but not HFrEF (P = 0.095). Therefore, the impact of the AC/FC on cardiac events was different between HFpEF and HFrEF (P = 0.042 for interaction).

conclusionsThe AC/FC can identify high risk HF patients, especially in HFpEF.

Indexed as

AcylcarnitineCarnitine deficiencyHeart failurePreserved ejection fractionPrognosis

Identifiers

PMID28772033
PMCPMC5542723
OpenAlexW2723177214

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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.