Evidence map›Paper›PMID 34711651›Full record

Observational studyOpen heart2021

Prognostic importance of the Controlling Nutritional Status (CONUT) score in patients undergoing cardiac resynchronisation therapy.

Yukitoshi Ikeya, Yuki Saito, Toshiko Nakai, Rikitake Kogawa, Naoto Otsuka, Yuji Wakamatsu, Sayaka Kurokawa, Kimie Ohkubo, Koichi Nagashima, Yasuo Okumura

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Open heart, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

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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

10 authors at 1 institution in 1 country.

Yukitoshi IkeyaDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Yuki SaitoDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan saito.yuki@nihon-u.ac.jp.ORCID 0000-0002-8193-9575
Toshiko NakaiDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Rikitake KogawaDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Naoto OtsukaDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Yuji WakamatsuDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Sayaka KurokawaDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Kimie OhkuboDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Koichi NagashimaDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Yasuo OkumuraDepartment of Medicine, Nihon University School of Medicine Graduate School of Medicine, Itabashi-ku, Tokyo, Japan.
Nihon University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsMalnutrition is common and associated with worse clinical outcomes in patients with heart failure (HF). The Controlling Nutritional Status (CONUT) score is an integrated index for evaluating diverse aspects of the complex mechanism of malnutrition. However, the relationship between the severity of malnutrition assessed by the CONUT score and clinical outcomes of HF patients receiving cardiac resynchronisation therapy (CRT) has not been fully clarified.

methodsClinical records of 263 patients who underwent pacemaker or defibrillator implantation for CRT between March 2003 and October 2020 were retrospectively evaluated. The CONUT score was calculated from laboratory data obtained before CRT device implantation. Patients were divided into three groups: normal nutrition (CONUT scores 0-1, n=58), mild malnutrition (CONUT scores 2-4, n=132) and moderate or severe malnutrition (CONUT scores 5-12, n=73). The primary endpoint was all-cause mortality.

resultsThe moderate or severe malnutrition group had a lower body mass index, more advanced New York Heart Association functional class, higher Clinical Frailty Scale score, lower levels of haemoglobin and higher levels of N-terminal probrain natriuretic peptide (all p<0.05). In the moderate or severe malnutrition group, the CRT response rate was significantly lower than for the other two groups (p=0.001). During a median follow-up period of 31 (10-67) months, 103 (39.1%) patients died. Kaplan-Meier analysis revealed that the moderate or severe malnutrition group had a significantly higher mortality rate (log-rank p<0.001). A higher CONUT score and CONUT score ≥5 remained significantly associated with all-cause mortality after adjusting for previously reported clinically relevant factors and the conventional risk score (VALID-CRT risk score) (all p<0.05).

conclusionsA higher CONUT score before CRT device implantation was strongly associated with HF severity, frailty, lower CRT response rate and subsequent long-term all-cause mortality.

Indexed as

Cardiac Resynchronization TherapyNutritional StatusNutrition AssessmentAgedCause of DeathFemaleFollow-Up StudiesHeart FailureHumansIncidenceJapanMaleMalnutritionMiddle AgedPrognosisRetrospective Studiesarrhythmiasdefibrillatorsheart failureimplantable

Identifiers

PMID34711651
PMCPMC8557277
OpenAlexW3208813818

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.