Evidence map›Paper›PMID 34733511›Full record

ArticleSAGE open medicine2021

Respiratory rate modulation improves symptoms in patients with pulmonary hypertension.

Barbro Kjellström, Bodil Ivarsson, Lise-Lotte Landenfelt Gestré, Henrik Ryftenius, Magnus Nisell

Open access · goldAbstract read
In one paragraph

Article in SAGE open medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. 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

5 authors at 2 institutions in 1 country.

Barbro KjellströmDepartment of Clinical Sciences, Lund University and Clinical Physiology, Skåne University Hospital, Lund, Sweden.ORCID https://orcid.org/0000-0002-7936-1209
Bodil IvarssonDepartment of Clinical Sciences, Lund University, Cardiothoracic Surgery and Medicine Services University Trust, Region Skåne, Lund, Sweden.ORCID https://orcid.org/0000-0002-5647-3929
Lise-Lotte Landenfelt GestréLung Unit, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
Henrik RyfteniusLung Unit, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
Magnus NisellLung Unit, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
Karolinska University Hospital · SELund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension are chronic diseases with a severe symptom burden. Common symptoms are dyspnoea at light activity and general fatigue that limits daily activities. Respiratory modulation by device-guided breathing decreased symptoms in patients with heart failure. The aim of this pilot study was to investigate if respiratory modulation could improve symptoms of dyspnoea in patients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension.

methodAdult patients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension with symptoms of dyspnoea at rest or light activity performed home-based respiratory modulation by device-guided breathing 20 min a day for 3 months. Patients were on stable disease-specific treatment ⩾3 months and willing to undergo all study procedures. Dyspnoea score, World Health Organization class, physical status, N-terminal pro b-type natriuretic peptide, quality of life, respiratory rate and 6-min walk distance were assessed before and after 3 months with respiratory modulation.

resultsNine patients with pulmonary arterial hypertension and five with chronic thromboembolic pulmonary hypertension completed the study protocol. Mean age was 71 ± 14 years, and 11 were women. After 3 months of respiratory modulation, dyspnoea score (-0.6,

conclusionPatients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension that used device-guided breathing for 3 months improved symptoms of dyspnoea and lowered the respiratory rate at rest and after exercise.

Indexed as

chronic illnesschronic thromboembolic pulmonary hypertensionpulmonary arterial hypertensionRare diseases

Identifiers

PMID34733511
PMCPMC8558785
OpenAlexW3208680462

What OpenQuestion holds

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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.