Evidence map›Paper›PMID 27878421›Full record

ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2017

The role of the atrial electromechanical delay in predicting atrial fibrillation in beta-thalassemia major patients.

Anna Rago, Vincenzo Russo, Andrea Antonio Papa, Carmine Ciardiello, Bruno Pannone, Maria Carolina Mayer, Giovanni Cimmino, Gerardo Nigro

Abstract read
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In one paragraph

Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Electrocardiographic Predictors of Atrial Fibrillation.Medical sciences (Basel, Switzerland) · 2023
    Pooled it
  2. Observational
  3. Observational
  4. Article
  5. Association between epicardial adipose tissue and transfusion-dependent β-thalassemia.The international journal of cardiovascular imaging · 2025
    Observational
  6. Review
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  11. Article
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  18. Article
  19. Bachmann bundle pacing reduces atrial electromechanical delay in type 1 myotonic dystrophy patients.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2018
    Observational
  20. Complete resolution of left atrial appendage thrombosis with oral dabigatran etexilate in a patient with Myotonic Dystrophy type 1 and atrial fibrillation.Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2017
    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 2 institutions in 1 country.

Anna RagoChair of Cardiology, Second University of Naples - Monaldi Hospital, Naples, Italy. anna_rago@alice.it.ORCID http://orcid.org/0000-0001-9252-2997
Vincenzo RussoChair of Cardiology, Second University of Naples - Monaldi Hospital, Naples, Italy.
Andrea Antonio PapaChair of Cardiology, Second University of Naples - Monaldi Hospital, Naples, Italy.
Carmine CiardielloH.T. MED Pozzuoli (NA), Naples, Italy.
Bruno PannoneInternal Medicine Unit, Cardarelli Hospital, Naples, Italy.
Maria Carolina MayerInternal Medicine Unit, Cardarelli Hospital, Naples, Italy.
Giovanni CimminoChair of Cardiology, Second University of Naples - Monaldi Hospital, Naples, Italy.
Gerardo NigroChair of Cardiology, Second University of Naples - Monaldi Hospital, Naples, Italy.
University of Campania "Luigi Vanvitelli" · ITFatebenefratelli Hospital · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParoxysmal atrial tachyarrhythmias frequently occur in beta-thalassemia major (β-TM) patients. The aim of the current study was to evaluate the atrial electromechanical delay (AEMD) in a large β-TM population with normal cardiac function and its relationship to atrial fibrillation (AF) onset.

methodsEighty β-TM patients (44 men, 36 women), with a mean age of 36.2 ± 11.1 years, and 80 healthy subjects used as controls, matched for age and gender, were studied for the occurrence of AF during a 5-year follow-up, through 30-day external loop recorder (ELR) monitoring performed every 6 months. Intra-AEMD and inter-AEMD of both atria were measured through tissue Doppler echocardiography. P-wave dispersion (PD) was carefully measured using 12-lead electrocardiogram (ECG).

resultsCompared to the healthy control group, the β-TM patients showed a statistically significant increase in inter-AEMD, intra-left AEMD, maximum P-wave duration, and PD. Dividing the β-TM group into two subgroups (patients with or without AF), the inter-AEMD, intra-left AEMD, maximum P-wave duration, and PD were significantly higher in the subgroup with AF compared to the subgroup without AF. There were significant good correlations of intra-left AEMD and inter-AEMD with PD. A cut-off value of 40.1 ms for intra-left AEMD had a sensitivity of 76.2% and a specificity of 97.5% in identifying β-TM patients with AF risk. A cut-off value of 44.8 ms for inter-AEMD had a sensitivity of 81.2% and a specificity of 98.7% in identifying this category of patients.

conclusionsOur results showed that the echocardiographic atrial electromechanical delay indices (intra-left and inter-AEMD) and the PD were significantly increased in β-TM subjects with normal cardiac function. PD and AEMD represent non-invasive, inexpensive, useful, and simple parameters to assess the AF risk in β-TM patients.

Indexed as

Excitation Contraction CouplingAdultAtrial Fibrillationbeta-ThalassemiaCausalityComorbidityEchocardiographyElectrocardiographyFemaleHumansIncidenceItalyMaleReproducibility of ResultsRisk AssessmentSensitivity and SpecificityAtrial electromechanical delayAtrial fibrillationBeta-thalassemia majorP-wave dispersion

Identifiers

PMID27878421
OpenAlexW2553989562

What OpenQuestion holds

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Read underepoch 390

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.