Evidence map›Paper›PMID 33226551›Full record

ArticleThe international journal of cardiovascular imaging2021

Value of territorial work efficiency estimation in non-ST-segment-elevation acute coronary syndrome: a study with non-invasive left ventricular pressure-strain loops.

YunYun Qin, XiaoPeng Wu, JiangTao Wang, YiDan Li, XueYan Ding, DiChen Guo, Zhe Jiang, WeiWei Zhu, QiZhe Cai, XiuZhang Lu

Abstract read
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In one paragraph

Article in The international journal of cardiovascular imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Diagnostic performance of left ventricular strain for predicting physiologically significant coronary artery disease.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Myocardial Work: Methodology and Clinical Applications.Diagnostics (Basel, Switzerland) · 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

10 authors.

YunYun QinDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
XiaoPeng WuDepartment of Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
JiangTao WangGE Clinical Education Team, Beijing, 100176, China.
YiDan LiDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
XueYan DingDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
DiChen GuoDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
Zhe JiangDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
WeiWei ZhuDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China.
QiZhe CaiDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China. echocaiqizhe@163.com.
XiuZhang LuDepartment of Echocardiography, Heart Center, Beijing Chao Yang Hospital, Capital Medical University, Beijing, 100020, China. lxz_echo@163.com.ORCID http://orcid.org/0000-0001-9566-9484

Funding

Beijing Municipal Administration of Hospitals Incubating Program XMLX201827
6 · The paper itself

Abstract

Non-ST-segment-elevation acute coronary syndrome (NSTE-ACS) patients with normal left ventricular (LV) ejection fraction (LVEF) and wall motion require a non-invasive tool to detect LV risk areas. This study utilized non-invasive LV pressure-strain loops to evaluate territorial myocardial work efficiency (WE) for identifying obstructive coronary artery stenosis, in patients with non-obstructive or obstructive coronary artery stenosis NSTE-ACS, the latter with or without occlusion. Global and territorial longitudinal strain (LS) analyses were performed via speckle-tracking imaging before coronary angiography. LV pressure-strain loops estimated global and territorial myocardial work index (MWI), constructive work (CW), wasted work (WW), and WE. Receiver operating characteristic curve analysis was used to determine the optimal cutoff value of independent parameters to detect obstructive coronary artery stenosis. Compared with non-obstructive, obstructive coronary artery stenosis showed significantly lower global and territorial LS, MWI, CW, and WE, and higher WW. Territorial LS, MWI, CW, and WE were significantly worse in territories of coronary occlusion. Territorial WE was the best parameter for predicting obstructive coronary artery stenosis (AUC 0.80, cutoff < 96%, sensitivity 73%, specificity 70%, P < 0.001). In patients with NSTE-ACS with normal wall motion and LVEF, territorial WE is more accurate than territorial LS or MWI to identify LV risk areas.

Indexed as

Echocardiography, DopplerVentricular Function, LeftVentricular PressureAcute Coronary SyndromeAgedCoronary AngiographyCoronary StenosisFemaleHumansMaleMiddle AgedNon-ST Elevated Myocardial InfarctionObserver VariationPredictive Value of TestsPrognosisReproducibility of ResultsMyocardial work efficiencyObstructive coronary artery diseasePressure–strain loopsSpeckle-tracking imaging

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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.