Evidence map›Paper›PMID 22886553›Full record

Trial reportEuropean radiology2013

Magnetic resonance imaging to assess the effect of exercise training on pulmonary perfusion and blood flow in patients with pulmonary hypertension.

Sebastian Ley, Christian Fink, Frank Risse, Nicola Ehlken, Christine Fischer, Julia Ley-Zaporozhan, Hans-Ulrich Kauczor, Hans Klose, Ekkehard Gruenig

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European radiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 6 pooled it
4.9field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 6 syntheses or guidelines pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Effectiveness and safety of home-basedEuropean respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  3. Exercise-based rehabilitation programmes for pulmonary hypertension.The Cochrane database of systematic reviews · 2023
    Pooled it
  4. Walking for hypertension.The Cochrane database of systematic reviews · 2021
    Pooled it
  5. Exercise-based rehabilitation programmes for pulmonary hypertension.The Cochrane database of systematic reviews · 2017
    Pooled it
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  10. Physical exercise for pulmonary arterial hypertension diagnosis and therapy.International journal of cardiology. Congenital heart disease · 2025
    Review
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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

9 authors at 2 institutions in 1 country.

Sebastian LeyDepartment of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany. ley@gmx.de
Christian Fink
Frank Risse
Nicola Ehlken
Christine Fischer
Julia Ley-Zaporozhan
Hans-Ulrich Kauczor
Hans Klose
Ekkehard Gruenig
Heidelberg University · DEUniversity Hospital Heidelberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate whether careful exercise training improves pulmonary perfusion and blood flow in patients with pulmonary hypertension (PH), as assessed by magnetic resonance imaging (MR).

methodsTwenty patients with pulmonary arterial hypertension or inoperable chronic thromboembolic PH on stable medication were randomly assigned to control (n = 10) or training groups (n = 10). Training group patients received in-hospital exercise training; patients of the sedentary control group received conventional rehabilitation. Medication remained unchanged during the study period. Changes of 6-min walking distance (6MWD), MR pulmonary flow (peak velocity) and MR perfusion (pulmonary blood volume) were assessed from baseline to week 3.

resultsAfter 3 weeks of training, increases in mean 6MWD (P = 0.004) and mean MR flow peak velocity (P = 0.012) were significantly greater in the training group. Training group patients had significantly improved 6MWD (P = 0.008), MR flow (peak velocity -9.7 ± 8.6 cm/s, P = 0.007) and MR perfusion (pulmonary blood volume +2.2 ± 2.7 mL/100 mL, P = 0.017), whereas the control group showed no significant changes.

conclusionThe study indicates that respiratory and physical exercise may improve pulmonary perfusion in patients with PH. Measurement of MR parameters of pulmonary perfusion might be an interesting new method to assess therapy effects in PH. The results of this initial study should be confirmed in a larger study group.

Indexed as

AdultAgedBlood Flow VelocityExercise TherapyFemaleFollow-Up StudiesHumansHypertension, PulmonaryImaging, Three-DimensionalMagnetic Resonance AngiographyMaleMiddle AgedPerfusionProspective StudiesPulmonary CirculationQuality of Life

Identifiers

PMID22886553
OpenAlexW2029829563

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.