Evidence map›Paper›PMID 33791079›Full record

ArticleWorld journal of cardiology2021

Elevated interleukin-6 levels are associated with impaired outcome in cardiac transthyretin amyloidosis.

Selina J Hein, Maximilian Knoll, Fabian Aus dem Siepen, Jennifer Furkel, Stefan Schoenland, Ute Hegenbart, Hugo A Katus, Arnt V Kristen, Mathias Konstandin

Open access · diamondAbstract read
In one paragraph

Article in World journal of cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.3field-weighted citation impact, top 45% 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

11 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Mechanisms of damage and therapies for cardiac amyloidosis: a role for inflammation?Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Review
  3. Observational
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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 at 2 institutions in 2 countries.

Selina J HeinDepartment of Cardiology, Pneumology and Angiology, University Hospital Heidelberg, Heidelberg, BW 69120, Germany. selina.hein@med.uni-heidelberg.de.
Maximilian KnollDepartment of Radiation Oncology, Heidelberg Ion-Beam Therapy Center, German Cancer Research Center, University Hospital Heidelberg, Heidelberg, BW 69120, Germany.
Fabian Aus dem SiepenDepartment of Cardiology, Pneumology and Angiology, University Hospital Heidelberg, Heidelberg, BW 69120, Germany.
Jennifer FurkelDepartment of Radiation Oncology, Heidelberg University Hospital, Heidelberg, BW 69120, Germany.
Stefan SchoenlandDepartment of Hematology, Oncology and Rheumatology, Amyloidosis Center, Heidelberg University Hospital, Heidelberg, BW 69120, Germany.
Ute HegenbartDepartment of Hematology, Amyloidosis Center, Heidelberg University Hospital, Heidelberg, BW 69120, Germany.
Hugo A KatusDepartment of Cardiology, Medical University Hospital Heidelberg, Heidelberg, BW 69120, Germany.
Arnt V KristenDepartment of Cardiology, Amyloidosis Center, University of Heidelberg, Heidelberg, BW 69120, Germany.
Mathias KonstandinDepartment of Cardiology, Medical University Hospital Heidelberg, Heidelberg, BW 69120, Germany.
Heidelberg University · DEGerman Cancer Research Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElevated interleukin (IL)-6-levels have been described in familial variant transthyretin amyloidosis (ATTRv) associated polyneuropathy and heart failure. However, IL-6 in cardiac ATTR amyloidosis (ATTR-CM) and its prognostic value have not been investigated yet.

aimWe aim to study the correlation between IL-6 levels with clinical presentation (Gillmore-class) and outcome [heart transplantation or death (htx/death)], or the combined endpoint of cardiac decompensation or htx/death in ATTR-CM.

methodsIL-6 levels of 106 ATTR-CM patients [54 wild-type ATTRwt, 52 ATTRv-CM], 15 asymptomatic carriers of ATTR mutations (aATTRv-CM) and 27 healthy donors were quantified using Luminex technology. Statistical analysis was performed using parametric survival regression models.

resultsWe found that IL-6 levels from wild-type ATTR patients were significantly elevated compared to healthy controls, while aATTRv-CM carriers and ATTRv-CM patients did not show a significant difference. IL-6 levels showed significantly higher values in increasing Gillmore classes. Univariate analyses revealed association of low IL-6 levels with cardiac decompensation and htx/death [odds ratio: 0.26 (0.09-0.72),

conclusionRaised IL-6 levels correlate with clinical presentation and are associated with worse outcome in ATTR-CM but do not improve stratification in addition to established risk factors.

Indexed as

Heart failureInflammationInterleukin-6OutcomeRisk stratificationTransthyretin amyloidosis

Identifiers

PMID33791079
PMCPMC7988596
OpenAlexW3139288086

What OpenQuestion holds

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Registered trials

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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.