Evidence map›Paper›PMID 33464357›Full record

ArticleHerz2021

Predictors of adequate intraprocedural premature ventricular complex (PVC) frequency during idiopathic PVC ablation.

Serdar Demir, Kamil Gulsen, Alper Kepez, Abdulkadir Uslu, Ayhan Kup, Batur Gonenc Kanar, Fethullah Kayan, Cagan Yildirim, Taylan Akgun

Abstract read
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In one paragraph

Article in Herz, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Dependence of premature ventricular complexes on heart rate-it's not that simple.Journal of the American Medical Informatics Association : JAMIA · 2026
    Article
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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.

Serdar DemirCardiology Clinic, Kartal Kosuyolu High Speciality Educational and Research Hospital, Istanbul, Turkey.
Kamil GulsenCardiology Clinic, Kartal Kosuyolu High Speciality Educational and Research Hospital, Istanbul, Turkey.
Alper KepezDepartment of Cardiology, Marmara University School of Medicine, Istanbul, Turkey. alperkepez@yahoo.com.ORCID http://orcid.org/0000-0003-3868-3268
Abdulkadir UsluCardiology Clinic, Kartal Kosuyolu High Speciality Educational and Research Hospital, Istanbul, Turkey.
Ayhan KupCardiology Clinic, Kartal Kosuyolu High Speciality Educational and Research Hospital, Istanbul, Turkey.
Batur Gonenc KanarDepartment of Cardiology, Marmara University School of Medicine, Istanbul, Turkey.
Fethullah KayanCardiology Clinic, Mardin Kiziltepe State Hospital, Mardin, Turkey.
Cagan YildirimDepartment of Cardiology, Marmara University School of Medicine, Istanbul, Turkey.
Taylan AkgunCardiology Clinic, Kartal Kosuyolu High Speciality Educational and Research Hospital, Istanbul, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the present study was to determine the predictors of adequate intraprocedural premature ventricular complex (PVC) frequency for successful mapping and ablation of idiopathic PVCs.

methodsA total of 101 consecutive patients (45 men; age: 47.9 ± 14.2 years) who had undergone idiopathic PVC ablation between 01 November 2018 and 24 June 2020 constituted our study population. Clinical and demographic data, procedural details and 24 h rhythm recordings that had been recorded before the procedure were retrospectively evaluated. Total PVC burden and diurnal variability assessed by the ratio of night time (22:00-06:00) over day time (06:00-22:00) PVC burden was calculated. The relationship between hourly PVC number and heart rate was also evaluated for each patient. Clinical characteristics and Holter parameters were compared between groups with and without adequate intraprocedural frequency of PVCs that permitted activation mapping.

resultsIn all, 27 patients (26.7%) had infrequent intraprocedural PVCs which necessitated isoproterenol infusion or cancellation of ablation procedure due to inability of activation mapping. PVC burden was significantly higher in the group with frequent intraprocedural PVCs (26.1 ± 9.4% vs 21.2 ± 10.3%; p: 0.026). There were no significant differences between groups regarding the relationship between hourly PVC number and heart rate or the ratio of night/day PVC burden. Binary logistic regression analysis revealed the 24 h Holter PVC burden as the sole parameter that is significant predictor of frequent intraprocedural PVCs permitting activation mapping.

conclusionThe 24 h PVC burden was the only predictor of adequate intraprocedural PVC frequency permitting activation mapping during idiopathic PVC ablation.

Indexed as

Catheter AblationVentricular Premature ComplexesAdultHeart RateHumansMaleMiddle AgedRetrospective StudiesActivation mappingArrhythmias, cardiacDiurnal variability of premature ventricular complexesHeart diseasesRadiofrequency ablation

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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.