Evidence map›Paper›PMID 29073254›Full record

ArticlePloS one2017

Combining MAD and CPAP as an effective strategy for treating patients with severe sleep apnea intolerant to high-pressure PAP and unresponsive to MAD.

Hsiang-Wen Liu, Yunn-Jy Chen, Yi-Chun Lai, Ching-Yi Huang, Ya-Ling Huang, Ming-Tzer Lin, Sung-Ying Han, Chi-Ling Chen, Chong-Jen Yu, Pei-Lin Lee

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Maximizing outcomes by multimodal treatment in obstructive sleep apnea: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Pooled it
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 1 country.

Hsiang-Wen LiuDepartment of Internal Medicine, National Taiwan University Hospital, Yun-Lin Branch, Yun-Lin, Taiwan.
Yunn-Jy ChenDepartment of Dentistry, School of Dentistry, Graduate Institute of Clinical Dentistry, Taipei, Taiwan.
Yi-Chun LaiDepartment of Internal Medicine, National Yang-Ming University Hospital, I-Lan, Taiwan.
Ching-Yi HuangDepartment of Dentistry, School of Dentistry, Graduate Institute of Clinical Dentistry, Taipei, Taiwan.
Ya-Ling HuangDepartment of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
Ming-Tzer LinGraduate Institute of Epidemiology and Preventive Medicine, College of Public Health, Taipei, Taiwan.
Sung-Ying HanDepartment of Dentistry, Mackay Memorial Hospital, Taipei, Taiwan.
Chi-Ling ChenGraduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
Chong-Jen YuDepartment of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
Pei-Lin LeeDepartment of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
National Taiwan University Hospital · TWTaipei Institute of Pathology · TWMackay Memorial Hospital · TWNational Taiwan University · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study aimed to determine the effect of combining positive airway pressure (PAP) therapy and mandibular advancement device (MAD) in patients with severe obstructive sleep apnea (OSA) who were pressure intolerant for PAP and were unresponsive to MAD.

methodsThis retrospective study reviewed the medical records of severe OSA patients with apnea-hypopnea index (AHI) ≥ 30/hr who were diagnosed between October 1, 2008 and June 30, 2014. Patients were initially treated with 2 weeks of PAP, and those who were intolerant to high-pressure PAP (≥15 cm H2O) were switched to 12 weeks of MAD, which is a monobloc designed at 75% of maximum protrusion. Patients who had high residual AHI (≥15/hr) on MAD underwent 12 weeks of combination therapy (CT) with MAD and CPAP and were enrolled in the present study. Enrolled subjects who completed the 12-week CT were followed-up until June 30, 2016.

resultsA total of 14 male patients were included. All three treatments effectively reduced AHI, oxygen desaturation index (ODI), and total sleep time with SpO2 <90% (% TST-SpO2<90%) compared to pretreatment values. The residual AHI and ODI on CT was lower than that on MAD or PAP. The residual % TST-SpO2<90% was lower than that on MAD and similar to that on PAP. The therapeutic pressure on CT was on average 9.2 cm H2O lower than that on PAP. For the 11 patients who completed CT, only CT reduced ESS compared to pretreatment value. No treatment had significant impact on % slow wave sleep or overnight change of blood pressure. For patients who completed CT, the average usage was 5.9±1.7 hr/night at 12th week and 6.4±1.5 hr/night at a median follow-up of 36.5-months.

conclusionsCombining MAD and CPAP showed additive effects on reducing AHI and ODI, and lowered the therapeutic pressures.

Indexed as

Continuous Positive Airway PressureBlood PressureCombined Modality TherapyFemaleFollow-Up StudiesHumansMaleMandibular AdvancementMiddle AgedPatient ComplianceRetrospective StudiesSleep Apnea, ObstructiveTomography, X-Ray ComputedTreatment Failure

Identifiers

PMID29073254
PMCPMC5658160
OpenAlexW2765744945

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.