Evidence map›Paper›PMID 27031508›Full record

ArticlePloS one2016

The Clinical Significance of HbA1c in Operable Chronic Thromboembolic Pulmonary Hypertension.

Manuel Jonas Richter, Katrin Milger, Sarah Haase, Natascha Sommer, Khodr Tello, Werner Seeger, Eckhard Mayer, Christoph Benjamin Wiedenroth, Friedrich Grimminger, Wolfgang George and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

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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

13 authors at 4 institutions in 1 country.

Manuel Jonas RichterDepartment of Pneumology, Kerckhoff Heart, Rheuma and Thoracic Center, Bad Nauheim, Germany.
Katrin MilgerDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Sarah HaaseDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Natascha SommerDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Khodr TelloDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Werner SeegerDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Eckhard MayerDepartment of Thoracic Surgery, Kerckhoff Heart, Rheuma and Thoracic Center, Bad Nauheim, Germany.
Christoph Benjamin WiedenrothDepartment of Thoracic Surgery, Kerckhoff Heart, Rheuma and Thoracic Center, Bad Nauheim, Germany.
Friedrich GrimmingerDepartment of Pneumology, Kerckhoff Heart, Rheuma and Thoracic Center, Bad Nauheim, Germany.
Wolfgang GeorgeTransMIT Project Division for Health Services Research and Consulting, THM University of Applied Science, Giessen, Germany.
Hossein Ardeschir GhofraniDepartment of Pneumology, Kerckhoff Heart, Rheuma and Thoracic Center, Bad Nauheim, Germany.
Stefan GuthTransMIT Project Division for Health Services Research and Consulting, THM University of Applied Science, Giessen, Germany.
Henning GallDepartment of Internal Medicine, Justus-Liebig-University Giessen, Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
Justus-Liebig-Universität Gießen · DEGerman Center for Lung Research · DEKerckhoff Klinik · DETransMIT (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlycosylated hemoglobin A1c (HbA1c) has been proposed as an independent predictor of long-term prognosis in pulmonary arterial hypertension. However, the clinical relevance of HbA1c in patients with operable chronic thromboembolic pulmonary hypertension (CTEPH) remains unknown. The aim of the present study was to investigate the clinical significance of HbA1c as a biomarker in CTEPH.

methodsProspectively, 102 patients underwent pulmonary endarterectomy (PEA) in our national referral center between March 2013 and March 2014, of which after exclusion 45 patients were analyzed. HbA1c- levels, hemodynamic and exercise parameters were analyzed prior and one-year post-PEA.

results45 patients (BMI: 27.3 ± 6.0 kg/m2; age: 62.7 ± 12.3 years) with a mean pulmonary arterial pressure (mPAP) of 43.6 ± 9.4 mmHg, a pulmonary vascular resistance (PVR) of 712.1 ± 520.4 dyn*s/cm5, a cardiac index (CI) of 2.4 ± 0.5 l/min/m2 and a mean HbA1c-level of 39.8 ± 5.6 mmol/mol were included. One-year post-PEA pulmonary hemodynamic and functional status significantly improved in our cohort. Baseline HbA1c-levels were significantly associated with CI, right atrial pressure, peak oxygen uptake and the change of 6-minute walking distance using linear regression analysis. However, using logistic regression analysis baseline HbA1c-levels were not significantly associated with residual post-PEA PH.

conclusionsThis is the first prospective study to describe an association of HbA1c-levels with pulmonary hemodynamics and exercise capacity in operable CTEPH patients. Our preliminary results indicate that in these patients impaired glucose metabolism as assessed by HbA1c is of clinical significance. However, HbA1c failed as a predictor of the hemodynamic outcome one-year post-PEA.

Indexed as

AgedArterial PressureBiomarkersChronic DiseaseCohort StudiesEndarterectomyFemaleGlycated HemoglobinHemodynamicsHumansHypertension, PulmonaryImmunoassayLogistic ModelsMaleMiddle AgedNatriuretic Peptide, BrainBiomarkersGlycated Hemoglobinhemoglobin A1c protein, humanNatriuretic Peptide, BrainPeptide Fragmentspro-brain natriuretic peptide (1-76)

Identifiers

PMID27031508
PMCPMC4816563
OpenAlexW2317207139

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.