Evidence map›Paper›PMID 32159241›Full record

SynthesisClinical cardiology2020

Opposite effect of ablation on early/late-phase thromboembolic incidence in patients with atrial fibrillation: A meta-analysis on more than 100 000 individuals.

Menghui Liu, Yuanping Wang, Jie Li, Xiaodong Zhuang, Xiaohong Chen, Xiaohui Li, Xinxue Liao, Lichun Wang

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Clinical cardiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 2 pooled it
0.4field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 2 syntheses or guidelines pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Residual Stroke Risk in Atrial Fibrillation.Arrhythmia & electrophysiology review · 2021
    Review
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 2 countries.

Menghui LiuDepartment of Cardiology, The First Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.ORCID https://orcid.org/0000-0001-6021-4447
Yuanping WangThe Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
Jie LiDepartment of Cardiology, The First Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.
Xiaodong ZhuangDepartment of Cardiology, The First Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.
Xiaohong ChenThe Third Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.
Xiaohui LiThe Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
Xinxue LiaoDepartment of Cardiology, The First Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.
Lichun WangDepartment of Cardiology, The First Affiliated Hospital, Sun Yet-sen University, Guangzhou, China.ORCID https://orcid.org/0000-0002-9757-3256
Sun Yat-sen University · CNGuangzhou University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAtrial fibrillation (AF) is an important risk factor for thromboembolic events, for which catheter ablation represents an effective therapy for rhythm control. Intuitively, ablation may reduce the incidence of thromboembolism, but data is quite limited. HYPOTHESIS: Catheter ablation was associated with the fewer risk of thromboembolism compared with nonablation in patients with AF.

methodsA systematic search was performed in PubMed, EMBASE, the Web of Science, and the Cochrane Library from inception to September 2019. Random-effects model was used to estimate the risk ratios (RR) for the thromboembolic events between the ablation and nonablation groups.

resultsTwenty-five studies (12 randomized controlled trials and 13 observational studies) with 104 687 participants were included. Pooled analysis suggested that ablation was associated with a 35% lower risk of total thromboembolic events compared to nonablation group (RR = 0.65; 95% CI, 0.51-0.82; P = .0003). When separated into early-phase (<30 days) and late-phase (>30 days) events, ablation was associated with an increased early-phase thromboembolism (RR = 1.96; 95% CI, 1.35-2.83; P = .0004) but a decreased late-phase thromboembolism (RR = 0.75; 95% CI, 0.63-0.90; P = .002). Subgroup analysis according to different study types found similar results were found in observation studies, but not in RCT studies because the sample size was too small to be conclusive.

conclusionsIn patients with AF, catheter ablation was associated with a fewer risk of overall and late-phase thromboembolism in comparison with nonablation. However, over the early postoperative period, catheter ablation was associated with the double higher risk of thromboembolic events.

Indexed as

Postoperative ComplicationsAtrial FibrillationCatheter AblationGlobal HealthHumansIncidenceRisk FactorsThromboembolismatrial fibrillationcatheter ablationmeta-analysisthromboembolism

Identifiers

PMID32159241
PMCPMC7298999
OpenAlexW3011501808

What OpenQuestion holds

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LicenceCC BY
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.