Evidence map›Paper›PMID 25928887›Full record

ArticlePloS one2015

Murine left atrium and left atrial appendage structure and function: echocardiographic and morphologic evaluation.

Francesca Colazzo, Laura Castiglioni, Luigi Sironi, Lucia Fontana, Elena Nobili, Matteo Franzosi, Uliano Guerrini

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Guidelines for measuring cardiac physiology in mice.American journal of physiology. Heart and circulatory physiology · 2018
    Guideline
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  9. Characterization of a robust mouse model of heart failure with preserved ejection fraction.American journal of physiology. Heart and circulatory physiology · 2023
    Article
  10. Quantification of left atrial appendage fibrosis by cardiac magnetic resonance: an accurate surrogate for left atrial fibrosis in atrial fibrillation patients?Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  11. Review
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  18. Left atrial remodeling, hypertrophy, and fibrosis in mouse models of heart failure.Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology
    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

7 authors at 2 institutions in 1 country.

Francesca ColazzoCentro Cardiologico Monzino IRCCS, Milan, Italy.
Laura CastiglioniDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Luigi SironiCentro Cardiologico Monzino IRCCS, Milan, Italy; Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Lucia FontanaDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Elena NobiliCentro Cardiologico Monzino IRCCS, Milan, Italy.
Matteo FranzosiDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
Uliano GuerriniDepartment of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
University of Milan · ITCentro Cardiologico Monzino · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aim of this study was to provide an echocardiographic protocol for the description of the normal murine venous reservoir (atrium, appendage and pulmonary veins) and to investigate the possibility to use this approach to discriminate changes on left atrium (LA) and left atrial appendage (LAA) in a stress-induced model such us myocardial infarction. Global left ventricular function and the venous reservoir were assessed by a Vevo2100 in 20 female C57BL/6N. LA and LAA were also studied in 10 CD-1 and 10 FVB mice, whereas modifications investigated in 15 C57BL/6N subjected to coronary artery ligation. Left ventricle function was evaluated as well as pulsed Doppler mitral valve, pulmonary vein, and LAA velocities. From 2D view monoplane LA volumes were obtained and LAA long axis measured. Macroscopic inspection with casts and immunohistochemistry were performed. Results show that compared to humans, in C57BL/6N mice left atrium was disproportionately smaller (5.2±1.4 μL) than the left ventricle (53±8 μL) and connected through a duct by a large LAA and posteriorly to three pulmonary veins. The LA volume increased 2-fold during reservoir with two distinct phases, early and late divided by a short pause. LAA long axis (4.1±0.5 mm) was almost 2 times longer than the LA. LAA flow volume together with LA volume reservoir account for about 36% of stroke volume and the rest was provided by conduit flow. Linear regressions showed that stroke volume was strongly influenced by LAA flow, LA early filling volume and left ventricle base descent. Moreover, we also report the ability to assess LA and LAA in other mice strains and discriminate size increase following myocardial infarction. In conclusion, we performed a complete characterization of murine left venous reservoir establishing an optimized protocol that can be used in both investigative and pharmacological studies requiring rapid and serial determination of cardiac structure and function.

Indexed as

AnimalsAtrial AppendageAtrial Function, LeftEchocardiographyFemaleHeart AtriaMiceMice, Inbred C57BLMyocardial Infarction

Identifiers

PMID25928887
PMCPMC4415937
OpenAlexW2020316731

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.