Evidence map›Paper›PMID 25430411›Full record

ArticleAnatolian journal of cardiology2015

Fragmented QRS is associated with frequency of premature ventricular contractions in patients without overt cardiac disease.

Ahmet Temiz, Emine Gazi, Burak Altun, Ömer Güngör, Ahmet Barutçu, Adem Bekler, Yusuf Ziya Tan, Ali Ümit Yener, Mustafa Saçar, Yücel Çölkesen

Abstract read
In one paragraph

Article in Anatolian journal of cardiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Fragmented QRS complex in athletes' electrocardiogram: physiological adaptation or pathological sign? A scoping review.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2026
    Review
  2. Article
  3. Article
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  5. Article
  6. QRS fragmentation: its role in sherlocking the arrhythmogenic heart.Journal of community hospital internal medicine perspectives · 2016
    Review
  7. 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.

Ahmet TemizDepartment of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University; Çanakkale-Turkey. drahmettemiz@yahoo.com.
Emine Gazi
Burak Altun
Ömer Güngör
Ahmet Barutçu
Adem Bekler
Yusuf Ziya Tan
Ali Ümit Yener
Mustafa Saçar
Yücel Çölkesen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIn this study, we aimed to demonstrate whether the presence of fragmented QRS (fQRS) is associated with the frequency of premature ventricular contractions (PVCs).

methodsWe retrospectively analyzed 282 cases by 24-hour Holter monitorings (HMs) between August 2012 and February 2013. Firstly, the patients were divided into 2 groups with respect to presence of fQRS and then divided into 3 groups with respect to frequency of PVCs as Group 1: seldom PVC (<120 PVCs/day), Group 2: moderate-frequency PVC (120-720 PVCs/day), and Group 3: frequent PVC (>720 PVCs/day). We investigated the predictors of frequent PVCs by using multinomial logistic regression analysis.

resultsNinety-eight patients had fQRS. There was no difference between the 2 groups with respect to body mass index, gender, hypertension, and diabetes mellitus. Patients with fQRS were older (54.9±15.6 vs. 47.0±16.3, p<0.001) and had more family history of coronary artery disease (25% vs. 13%, p=0.012). Patients with fQRS was more likely to be on aspirin therapy (28.6% vs. 10.4%, p<0.001) and have a larger left atrium diameter (33.5±5.7 vs. 30.4±5.8, p=0.001). Presence of fQRS was significantly associated with the frequency of PVCs (for frequent PVC 27.7% vs. 7.6%, p<0.001; for moderate-frequency PVC 18.4% vs. 11.4%, p=0.012); 26.2% of Group 1 (n=202) had fQRS, 46.2% of Group 2 (n=39) had fQRS, and 65.9% of Group 3 (n=41) had fQRS. In the multinomial regression analysis, only age (odds ratio: 4.24, 95% confidence interval 2.08-8.64, p=0.001) and fQRS (odds ratio: 2.11, 95% confidence interval 1.00-4.45, p=0.05) were predictors of frequent PVCs.

conclusionThis study demonstrated that the presence of fQRS is associated with frequent PVCs in patients without overt structural heart disease.

Indexed as

AdultCoronary Artery DiseaseElectrocardiographyElectrocardiography, AmbulatoryFemaleHeart Conduction SystemHumansLogistic ModelsMaleMiddle AgedRetrospective StudiesVentricular Dysfunction, LeftVentricular Premature Complexes

Identifiers

PMID25430411
PMCPMC5779136

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.