Evidence map›Paper›PMID 26782102›Full record

Trial reportSleep & breathing = Schlaf & Atmung2016

Acute improvement of pulmonary hemodynamics does not alleviate Cheyne-Stokes respiration in chronic heart failure-a randomized, controlled, double-blind, crossover trial.

Thomas Bitter, Henrik Fox, Heidi Schmalgemeier, Birgit Wellmann, Andrea Zwenke, Jens Spiesshöfer, Zisis Dimitriadis, Dieter Horstkotte, Olaf Oldenburg

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Sleep & breathing = Schlaf & Atmung, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact, top 89% 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

3 citing papers in PubMed, 0 citations in OpenAlex.

  1. Impact of continuous positive airway pressure on the pulmonary changes promoted by immersion in water.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
    Trial
  2. Article
  3. Pathogenesis of central and complex sleep apnoea.Respirology (Carlton, Vic.) · 2017
    Review
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 1 institution in 1 country.

Thomas BitterDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany. bitter.thomas@gmail.com.
Henrik FoxDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Heidi SchmalgemeierDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Birgit WellmannDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Andrea ZwenkeDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Jens SpiesshöferDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Zisis DimitriadisDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Dieter HorstkotteDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Olaf OldenburgDepartment of Cardiology, Heart and Diabetes Center North Rhine-Westphalia, Ruhr University Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Heart and Diabetes Center North Rhine-Westphalia · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis randomized, controlled trial aimed to investigate whether acute improvement of pulmonary congestion would reduce the severity of Cheyne-Stokes respiration (CSR) in patients with chronic heart failure (CHF).

methodsTwenty-one consecutive patients with CHF and CSR (apnea-hypopnea index [AHI] ≥15/h) underwent right heart catheterization with titration of intravenous (IV) glyceryltrinitrate (GTN) to a maximum tolerable dosage and inhalation of iloprost 10 μg/mL after a washout phase. Maximum tolerable dosages of GTN and iloprost were randomly applied during full cardiorespiratory polysomnography within two split-night procedures and compared with IV or inhaled sodium chloride (NaCl) 0.9 %, respectively.

resultsGTN (6.2 ± 1.5 mg/h) and iloprost significantly lowered \mean pulmonary artery pressure (20.1 ± 9.0 to 11.6 ± 4.2 mmHg, p < 0.001 and 16.9 ± 7.9 to 14.2 ± 6.4 mmHg, p < 0.01, respectively). Pulmonary capillary wedge pressure was only reduced by GTN (14.0 ± 5.6 to 7.2 ± 3.9 mmHg, p < 0.001), and there was no significant change in the cardiac index. Sleep studies revealed no significant improvement in markers of CSR severity, including AHI, central apnea index, and CSR cycle length following GTN or iloprost treatment. Significant decreases in blood pressure, mean oxygen saturation, and S3 sleep were documented during GTN infusion.

conclusionsAcute improvement of pulmonary congestion by GTN had no immediate impact on CSR severity. Future investigations must therefore include longer treatment periods and treatment regimens that have positive, rather than negative, additional effects on peripheral and central chemoreceptors and sleep structure.

trial registrationGerman Clinical Trial Registry-ID:DRKS00000467 ( www.germanctr.de ).

Indexed as

Administration, InhalationAgedCardiac CatheterizationCardiac OutputCheyne-Stokes RespirationCross-Over StudiesDouble-Blind MethodFemaleHeart FailureHemodynamicsHumansIloprostInfusions, IntravenousLungMaleMiddle AgedIloprostNitroglycerinCheyne-Stokes respirationHeart failurePulmonary circulationSleep apnea syndrome

Identifiers

PMID26782102
OpenAlexW2028330609

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.