Evidence map›Paper›PMID 20813061›Full record

Trial reportCardiovascular ultrasound2010

Efficacy of beta-blocker therapy in symptomatic athletes with exercise-induced intra-ventricular gradients.

Carlos Cotrim, Luís R Lopes, Ana R Almeida, Rita Miranda, Ana G Almeida, Hortense Cotrim, José P Andrade, Eugenio Picano, Manuel Carrageta

Open access · goldAbstract readClinical TrialComparative Study
In one paragraph

Trial report in Cardiovascular ultrasound, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Exercise stress echocardiography: Where are we now?World journal of cardiology · 2022
    Review
  7. Article
  8. Article
  9. Review
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  11. 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

9 authors at 4 institutions in 2 countries.

Carlos CotrimCardiology Department, Garcia de Orta Hospital, Almada, Portugal. carlosadcotrim@hotmail.com
Luís R Lopes
Ana R Almeida
Rita Miranda
Ana G Almeida
Hortense Cotrim
José P Andrade
Eugenio Picano
Manuel Carrageta
Hospital Garcia de Orta · PTEscola Superior de Saúde Egas Moniz · PTHospital de Santa Maria · PTIstituto di Fisiologia Clinica · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUpright exercise stress echocardiography (SE) induces significant intraventricular gradient (IVG) and systolic anterior motion (SAM) in a large proportion of symptomatic athletes, who may therefore benefit from a negative inotropic therapy.The purpose of the present study was to assess the effect of chronic oral β blocker therapy on the occurrence of exercise-induced IVG and mitral valve SAM, in symptomatic athletes.

methodsWe enrolled 35 symptomatic athletes (age = 23 ± 11 years) with IVG (>30 mmHg) during SE off therapy. All repeated SE on chronic oral beta-blocker therapy (atenolol up to 50 mg, bisoprolol up to 10 mg, or metoprolol up to 100 mg daily according to physician-driven choice).

resultsOn therapy, there was during SE a reduction in IVG (35 off vs 17 on beta blocker, p < 0.01), decrease of IVG (102 ± 34 mmHg off vs 69 ± 24 mmHg on beta blocker, p < 0.01), peak heart rate (178 ± 15 bpm off vs 157 ± 9 bpm on beta blocker), SAM (24 off vs 9 on beta blocker, p < 0.001), symptoms during SE (17 off vs 2 on beta blocker p < 0.001), ST segment depression (13 off vs 2 on beta blocker, p < 0.001).

conclusionsIn athletes with positive screening on medical evaluation for sports practice and IVG on exertion, treatment with oral beta blockers improved symptoms in the large majority of patients. Symptomatic benefit was mirrored by objective evidence of improvement of echocardiographic signs of obstruction (IVG and SAM) and reduction of ischemia-like electrocardiographic changes.

Indexed as

AthletesEchocardiography, StressAdolescentAdrenergic beta-AntagonistsAdultChildExercise TestFemaleHeart RateHeart VentriclesHumansMaleMiddle AgedVentricular Dysfunction, LeftYoung AdultAdrenergic beta-Antagonists

Identifiers

PMID20813061
PMCPMC2940813
OpenAlexW2167191130

What OpenQuestion holds

Textmetadata
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.