Evidence map›Paper›PMID 25676084›Full record

Trial reportClinical and experimental pharmacology & physiology2015

Enhanced external counterpulsation reduces indices of central blood pressure and myocardial oxygen demand in patients with left ventricular dysfunction.

Darren T Beck, Darren P Casey, Jeffrey S Martin, Paloma D Sardina, Randy W Braith

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical and experimental pharmacology & physiology, 2015. 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
1.1field-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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
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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

5 authors at 4 institutions in 1 country.

Darren T BeckDepartment of Kinesiology, University of Rhode Island, Kingston, RI, USA.
Darren P Casey
Jeffrey S Martin
Paloma D Sardina
Randy W Braith
University of Florida · USEdward Via College of Osteopathic Medicine · USUniversity of Iowa · USUniversity of Rhode Island · US

Funding

Effects of EECP on Arterial FunctionR01HL077571 · NHLBI · UNIVERSITY OF FLORIDA · PI BRAITH, RANDY W · 2004 to 2006
$1.1M
NHLBI NIH HHS R01 HL077571NHLBI NIH HHS R01HL077571
6 · The paper itself

Abstract

Enhanced external counterpulsation (EECP) therapy decreases angina episodes and improves quality of life in patients with left ventricular (LV) dysfunction. However, the underlying mechanisms relative to the benefits of EECP therapy in patients with LV dysfunction have not been fully elucidated. The purpose of this study was to investigate the effects of EECP on indices of central haemodynamics, aortic pressure wave reflection characteristics, and estimates of LV load and myocardial oxygen demand in patients with LV dysfunction. Patients with chronic stable angina and LV ejection fraction < 40% but > 30%, were randomized to either an EECP group (LV ejection fraction = 35.1 ± 4.6%; n = 10) or sham-EECP group (LV ejection fraction = 34.3 ± 4.2%; n = 7). Pulse wave analysis of the central aortic pressure waveform and LV function were evaluated by applanation tonometry before and after 35 1-h sessions of EECP or sham-EECP. Enhanced external counterpulsation therapy was effective in reducing indices of LV wasted energy and myocardial oxygen demand by 25% and 19%, respectively. In addition, indices of coronary perfusion pressure and subendocardial perfusion were increased by 9% and 30%, respectively, after EECP. Our data indicate that EECP may be useful as adjuvant therapy for improving functional classification in heart failure patients through reductions in central blood pressure, aortic pulse pressure, wasted LV energy, and myocardial oxygen demand, which also suggests improvements in ventricular-vascular interactions.

Indexed as

Arterial PressureOxygen ConsumptionVentricular Function, LeftAgedAngina, StableChronic DiseaseCoronary CirculationCounterpulsationFemaleFloridaHumansMaleMiddle AgedMyocardiumPulse Wave AnalysisTime Factorscentral blood pressurecoronary artery diseaseenhanced external counterpulsationleft ventricular dysfunctionpulse wave analysis

Identifiers

PMID25676084
PMCPMC4380667
OpenAlexW1968028239

What OpenQuestion holds

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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.