Evidence map›Paper›PMID 25707582›Full record

ArticleClinical cardiology2015

Left ventricular diastolic dysfunction and E/E' ratio as the strongest echocardiographic predictors of reduced exercise capacity after acute myocardial infarction.

Ricardo Fontes-Carvalho, Francisco Sampaio, Madalena Teixeira, Francisco Rocha-Gonçalves, Vasco Gama, Ana Azevedo, Adelino Leite-Moreira

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cardiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 37 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Article
  15. 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.

Ricardo Fontes-CarvalhoCardiology Department, Gaia Hospital Center, Gaia, Portugal; Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Porto, Portugal.
Francisco Sampaio
Madalena Teixeira
Francisco Rocha-Gonçalves
Vasco Gama
Ana Azevedo
Adelino Leite-Moreira
Centro Hospitalar de Vila Nova de Gaia · PTUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe mechanisms that determine reduced exercise capacity after acute myocardial infarction (AMI) are not fully understood, especially the relative role of left ventricular diastolic and systolic function. HYPOTHESIS: To evaluate the role of different diastolic and systolic function echocardiographic parameters as predictors of reduced functional capacity in patients after AMI.

methodsOne month after AMI, 225 patients (84% male; mean age, 55.1 ± 10.9 years) were enrolled and underwent detailed echocardiography and cardiopulmonary exercise test on the same day. Systolic and diastolic function was evaluated by echocardiography according to the latest consensus recommendations, including tissue Doppler evaluation. Exercise capacity was evaluated with peak oxygen consumption (VO(2)).

resultsPeak VO(2) was significantly correlated with early diastolic tissue Doppler velocity (E') septal (r = 0.42, P < 0.001), E' lateral (r = 0.35, P < 0.001), septal E/E' ratio (r = -0.35, P = 0.001), and lateral E/E' (r = -0.27, P < 0.001). These diastolic function parameters predicted impaired exercise capacity (VO(2) <19 mL/kg/min), with an area under the receiver operating characteristic curve of 0.77 (95% confidence interval [CI]: 0.68-0.86, P < 0.001) for septal E/E'. On multivariate analysis, for each unit increase in septal E/E' ratio there was a -0.35 (95% CI: -0.54 to -0.15) mL/kg/min decrease in peak VO(2) independently of age, sex, body mass index, hypertension, and diabetes. There was a mild correlation between peak VO(2) and systolic function parameters (r = 0.17, P = 0.01 with ejection fraction; and r = 0.23, P = 0.02 with lateral systolic tissue Doppler velocity) that persisted after multivariate adjustment.

conclusionsAfter AMI, resting diastolic function parameters were the strongest correlates of exercise tolerance. Septal E/E' ratio was the best echocardiographic predictor of reduced functional capacity.

Indexed as

EchocardiographyExercise ToleranceAgedExercise TestFemaleHumansMaleMiddle AgedMyocardial InfarctionUltrasonography, DopplerVentricular Dysfunction, Left

Identifiers

PMID25707582
PMCPMC6711017
OpenAlexW1552124453

What OpenQuestion holds

Textmetadata
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.