Evidence map›Paper›PMID 36819835›Full record

ArticleARYA atherosclerosis2022

Assessment of functional and structural echocardiography parameters in patients with frequent premature ventricular contractions without structural heart disease.

Hedieh Alimi, Leila Bigdelu, Hoorak Poorzand, Fereshteh Ghaderi, Afsoon Fazlinejad, Maryam Emadzadeh, Banafsheh Ataei, Abdollah Kerachian

Open access · greenAbstract read
In one paragraph

Article in ARYA atherosclerosis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. The Value of Left Atrial Strain and Strain Rate for Prediction of Early Postoperative Atrial Fibrillation Following Isolated Off-Pump Coronary Artery Bypass Grafting in Low-Risk Patients.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2026
    Article
  3. Article
  4. 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

8 authors at 1 institution in 1 country.

Hedieh AlimiAssistant Professor of Cardiology, Vascular and Endovascular Surgery Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Leila BigdeluAssociate Professor of Cardiology, Vascular and Endovascular Surgery Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Hoorak PoorzandAssociate Professor of Cardiology, Vascular and Endovascular Surgery Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Fereshteh GhaderiAssociate Professor of Cardiology, Vascular and Endovascular Surgery Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Afsoon FazlinejadProfessor, Department of Cardiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Maryam EmadzadehAssistant Professor of Community Medicine, Clinical Research Development Unit, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Banafsheh AtaeiResident of Internal Medicine, Department of Internal Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Abdollah KerachianEchocardiologist, Mashhad University of Medical Sciences, Mashhad, Iran.
Mashhad University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPremature ventricular contractions (PVCs) are early depolarizations of the myocardium which originate from the ventricle. PVCs have previously been considered a benign condition. The clinical significance of PVCs in patients without structural heart disease is controversial.

methodsIn this cross-sectional study, patients with a palpitation complaint who underwent electrocardiography (ECG) Holter recording for 48 hours were analyzed. Patients with frequent PVCs (more than ten times in 1 hour) were identified and enrolled in the study. 26 patients were in the PVC group, and 26 patients were in the control group without PVC. The identified patients underwent an echocardiographic examination with strain modality.

resultsThere were 15 women (57.7%) in the PVC group and 17 women (65.4%) in the control group (P = 0.57). Two patients in the PVC group and three patients in the control group were hypertensive (P > 0.99). There was only one patient with diabetes in PVC and control group (P > 0.99). There were two smokers in the PVC group, whereas there was no smoker in the control group (P = 0.49). In comparison between two groups, patients with frequent PVCs had significantly larger left ventricular end-diastolic volume index (LVEDVI) (P = 0.048) along with lower left ventricular ejection fraction (LVEF) (P = 0.011), lower (more positive) left ventricular global longitudinal strain (LVGLS) (P = 0.001), and lower peak systolic mitral annular velocity (S') (P = 0.045). The left atrial volume index (LAVI) was significantly larger in the PVC group (P = 0.001). In speckle tracking echocardiography (STE) parameters, global peak atrial longitudinal strain (PALS) (P = 0.001) and peak atrial contraction strain (PACS) (P = 0.001) were significantly lower and time to peak longitudinal strain (TPLS) (P = 0.002) was significantly higher in the PVC group.

conclusionIn this study, left atrial (LA) and left ventricular (LV) function and geometry were adversely affected by frequent PVCs. Early diagnosis of these effects is possible with echocardiography along with strain analysis. It can guide the timely treatment of PVC to avoid the harmful effects of frequent PVCs on the heart.

Indexed as

Left Atrial FunctionLeft Ventricular FunctionPremature Ventricular Complexes

Identifiers

PMID36819835
PMCPMC9931611
OpenAlexW4321611151

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.