Evidence map›Paper›PMID 35120399›Full record

SynthesisClinical and translational science2022

Weight reduction added to CPAP decreases blood pressure and triglyceride level in OSA: Systematic review and meta-analysis.

Dóra K Kovács, Noémi Gede, László Szabó, Péter Hegyi, Zsolt Szakács, Béla Faludi, Ágnes Sebők, András Garami, Margit Solymár, Dániel Kósa and 3 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Clinical and translational science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025).Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. 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

13 authors at 2 institutions in 1 country.

Dóra K KovácsInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Noémi GedeInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
László SzabóInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Péter HegyiInstitute for Translational Medicine, Medical School, Szentágothai Research Centre, University of Pécs, Pécs, Hungary.
Zsolt SzakácsInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Béla FaludiDepartment of Neurology, Medical School, University of Pécs, Pécs, Hungary.
Ágnes SebőkDepartment of Neurology, Medical School, University of Pécs, Pécs, Hungary.
András GaramiInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Margit SolymárInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Dániel KósaInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Lilla HanákInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Zoltán RumbusInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
Márta BalaskóInstitute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary.
University of Pecs · HUSemmelweis University · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obstructive sleep apnea (OSA) is associated with treatment-resistant hypertension and high cardiovascular risk. Continuous positive airway pressure (CPAP) fails to reduce cardiovascular risks consistently. Obesity and OSA show reciprocal association and they synergistically increase hypertension via different pathways. Our meta-analysis aimed to assess the cardiovascular benefits of combining weight loss (WL) with CPAP (vs. WL or CPAP alone) in OSA. Outcomes included systolic and diastolic blood pressure (BP) and blood lipid parameters. We explored Medline, Embase, Cochrane, and Scopus. Eight randomized controlled studies (2627 patients) were included. The combined therapy decreased systolic BP more than CPAP alone. Weighted mean difference (WMD) for CPAP + WL versus CPAP was -8.89 mmHg, 95% confidence interval (95% CI; -13.67 to -4.10, p < 0.001) for systolic BP. For diastolic BP, this decrease was not significant. In case of blood lipids, the combined treatment decreased triglyceride levels more than CPAP alone (WMD = -0.31, 95% CI -0.58 to -0.04, p = 0.027). On the other hand, addition of CPAP to WL failed to suppress BP further. The certainty of evidence according to GRADE was very low to moderate. In conclusion, our results showed that the addition of WL to CPAP significantly improved BP and blood lipid values in OSA. On the other hand, the addition of CPAP to WL could not significantly improve BP or blood lipid values. Review protocol: PROSPERO CRD42019138998.

Indexed as

HypertensionSleep Apnea, ObstructiveBlood PressureContinuous Positive Airway PressureHumansTriglyceridesWeight LossTriglycerides

Identifiers

PMID35120399
PMCPMC9099124
OpenAlexW4210500836

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.