Evidence map›Paper›PMID 25119894›Full record

ArticleArquivos brasileiros de cardiologia2014

Ivabradine improves heart rate variability in patients with nonischemic dilated cardiomyopathy.

Ertugrul Kurtoglu, Sevket Balta, Yasin Karakus, Erdogan Yasar, Bilal Cuglan, Ozgur Kaplan, Gokhan Gozubuyuk

Open access · diamondAbstract readEvaluation Study
In one paragraph

Article in Arquivos brasileiros de cardiologia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

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  14. Ivadradine.Hospital pharmacy · 2015
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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

7 authors at 2 institutions in 1 country.

Ertugrul KurtogluDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Sevket BaltaDepartment of Cardiology, Eskisehir Military Hospital, Eskisehir, Turkey.
Yasin KarakusDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Erdogan YasarDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Bilal CuglanDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Ozgur KaplanDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Gokhan GozubuyukDepartment of Cardiology, Malatya State Hospital, Malatya, Turkey.
Malatya Devlet Hastanesi · TREskişehir City Hospital · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIvabradine is a novel specific heart rate (HR)-lowering agent that improves event-free survival in patients with heart failure (HF).

objectivesWe aimed to evaluate the effect of ivabradine on time domain indices of heart rate variability (HRV) in patients with HF.

methodsForty-eight patients with compensated HF of nonischemic origin were included. Ivabradine treatment was initiated according to the latest HF guidelines. For HRV analysis, 24-h Holter recording was obtained from each patient before and after 8 weeks of treatment with ivabradine.

resultsThe mean RR interval, standard deviation of all normal to normal RR intervals (SDNN), the standard deviation of 5-min mean RR intervals (SDANN), the mean of the standard deviation of all normal-to-normal RR intervals for all 5-min segments (SDNN index), the percentage of successive normal RR intervals exceeding 50 ms (pNN50), and the square root of the mean of the squares of the differences between successive normal to normal RR intervals (RMSSD) were low at baseline before treatment with ivabradine. After 8 weeks of treatment with ivabradine, the mean HR (83.6 ± 8.0 and 64.6 ± 5.8, p < 0.0001), mean RR interval (713 ± 74 and 943 ± 101 ms, p < 0.0001), SDNN (56.2 ± 15.7 and 87.9 ± 19.4 ms, p < 0.0001), SDANN (49.5 ± 14.7 and 76.4 ± 19.5 ms, p < 0.0001), SDNN index (24.7 ± 8.8 and 38.3 ± 13.1 ms, p < 0.0001), pNN50 (2.4 ± 1.6 and 3.2 ± 2.2 %, p < 0.0001), and RMSSD (13.5 ± 4.6 and 17.8 ± 5.4 ms, p < 0.0001) substantially improved, which sustained during both when awake and while asleep.

conclusionOur findings suggest that treatment with ivabradine improves HRV in nonischemic patients with HF.

Indexed as

AgedAged, 80 and overBenzazepinesCardiomyopathy, DilatedCardiotonic AgentsElectrocardiography, AmbulatoryFemaleHeart FailureHeart RateHumansIvabradineMaleMiddle AgedStatistics, NonparametricTime FactorsTreatment OutcomeBenzazepinesCardiotonic AgentsIvabradine

Identifiers

PMID25119894
PMCPMC4206361
OpenAlexW2054017425

What OpenQuestion holds

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LicenceCC BY-NC
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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.