Evidence map›Paper›PMID 33850469›Full record

ArticleInternational journal of medical sciences2021

Impact of sex differences on outcomes in patients with non-valvular atrial fibrillation undergoing left atrial appendage closure: A single-center experience.

Mingzhong Zhao, Felix Post, Manuela Muenzel, Cody R Hou, Thorsten Keil, Jiangtao Yu

Open access · goldAbstract read
In one paragraph

Article in International journal of medical sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  4. Clinical progress and functional modalities of HDAC inhibitor-based combination therapies in cancer treatment.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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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

6 authors at 2 institutions in 3 countries.

Mingzhong ZhaoDepartment of Cardiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany.
Felix PostClinic for General Internal Medicine and Cardiology, Katholisches Klinikum Koblenz Montabaur, Germany.
Manuela MuenzelDepartment of Cardiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany.
Cody R HouDepartment of Cardiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany.
Thorsten KeilDepartment of Anesthesiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany.
Jiangtao YuDepartment of Cardiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany.
Sana Klinikum Lichtenberg · DEUniversity of Minnesota Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Female patients affected by non-valvular atrial fibrillation (NVAF) have a higher risk of stroke compared with male patients. Left atrial appendage (LAA) closure has been demonstrated as a reasonable alternative to warfarin therapy for stroke prevention in patients with NVAF. However, the impact of sex-related differences on outcomes in patients undergoing LAA closure (LAAC) remains unclear. Our study investigated the differences in LAAC efficacy and safety endpoints between sexes. 387 consecutive patients undergoing WATCHMAN device implantation were enrolled and stratified by sex. Baseline clinical characteristics, procedural data, severe peri-procedural complications and long-term outcomes were compared between men and women. Measurements of LAA width and depth, device implantation success rate, and the frequency of severe peri-procedural complications were comparable between the two groups. After an average follow-up length of two years post LAAC, no significant differences were observed in the risks for composite thromboembolic events (P = 0.096), major bleeding (P = 0.129), and combined primary (co-primary) efficacy events (P = 0.231) between sexes, but the risk of all-cause death decreased significantly in women compared with men (P = 0.045). After performing propensity matching adjustment for residual confounders, the sex-related differences in the cumulative ratio of freedom from all-cause death did not reach statistical significance (P = 0.062), as was also observed with the cumulative ratio of freedom from composite thromboembolic events (P = 0.104), major bleeding (P = 0.134), and co-primary efficacy events (P = 0.241). The observed annual rate of thromboembolic events was significantly decreased by 67.1% (P < 0.01) and 52.5% (P < 0.05) and the observed annual rate of bleeding was reduced by 33.6% (P < 0.05) and 43.5% (P < 0.05) in men and women when compared with the predicted risk based on CHA

Indexed as

Administration, OralAgedAged, 80 and overAnticoagulantsAtrial AppendageAtrial FibrillationCardiac CatheterizationFemaleFollow-Up StudiesHemorrhageHumansIncidenceMaleRetrospective StudiesSex FactorsStrokeAnticoagulantsLAA closureleft atrial appendagenon-valvular atrial fibrillationoutcomessex differences

Identifiers

PMID33850469
PMCPMC8040400
OpenAlexW3138573962

What OpenQuestion holds

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LicenceCC BY
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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.