Evidence map›Paper›PMID 35396662›Full record

ArticleObesity surgery2022

Preoperative Assessment of Obstructive Sleep Apnea in Bariatric Patients Using Polysomnography or Polygraphy.

Sophie L van Veldhuisen, Leontien M G Nijland, Madeline J L Ravesloot, Nico de Vries, Ruben N van Veen, Eric J Hazebroek, Steve M M de Castro

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In one paragraph

Article in Obesity surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.5field-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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Chinese Guidelines for the Diagnosis and Surgical Treatment of Adult Obstructive Sleep Apnea (2024).World journal of otorhinolaryngology - head and neck surgery · 2026
    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

7 authors at 4 institutions in 2 countries.

Sophie L van VeldhuisenDepartment of Surgery/Vitalys Clinic, Rijnstate Hospital, Wagnerlaan 55, 6815 AD, Arnhem, The Netherlands.
Leontien M G NijlandDepartment of Surgery, OLVG, Location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.
Madeline J L RaveslootDepartment of Otorhinolaryngology, Head and Neck Surgery, OLVG, Location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.
Nico de VriesDepartment of Otorhinolaryngology, Head and Neck Surgery, OLVG, Location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.
Ruben N van VeenDepartment of Surgery, OLVG, Location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.
Eric J HazebroekDepartment of Surgery/Vitalys Clinic, Rijnstate Hospital, Wagnerlaan 55, 6815 AD, Arnhem, The Netherlands.
Steve M M de CastroDepartment of Surgery, OLVG, Location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands. s.m.m.decastro@olvg.nl.
OLVG · NLRijnstate Hospital · NLUniversity of Antwerp · BEWageningen University & Research · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreoperative assessment of obstructive sleep apnea (OSA) in patients scheduled for bariatric surgery can be performed by in-laboratory polysomnography (PSG) or by portable polygraphy (PP) at home. We aimed to evaluate the association between PSG/PP, OSA diagnosis, and implementation of continuous positive airway pressure (CPAP) therapy.

methodsAll patients who underwent bariatric surgery from 2015 to 2017 were retrospectively reviewed. Patients underwent preoperative PSG or PP, based on prevailing protocols or at the physician's discretion. Logistic regression analyses were performed to determine predictors of CPAP implementation. OSA-related postoperative complications were analyzed in both groups.

resultsDuring the study period, 1464 patients were included. OSA was diagnosed in 79% of 271 patients undergoing PSG, compared to 64% of 1193 patients undergoing PP (p < 0.001), with median apnea-hypopnea index (AHI) of 15.8 and 7.7, respectively. CPAP treatment was initiated in 52% and 27% of patients, respectively, p < 0.001. Predictors (with adjusted odds ratio) in multivariate regression analysis for CPAP implementation were as follows: male gender (5.15), BMI ≥ 50 (3.85), PSG test (2.74), hypertension (2.38), and age ≥ 50 (1.87). OSA-related complications did not differ between groups (p = 0.277).

conclusionBoth PSG and PP are feasible options for preoperative OSA assessment in bariatric patients. When PP is performed, some underdiagnosis may occur as cases of mild OSA may be missed. However, clinically relevant OSA is detected by both diagnostic tools. No difference in OSA-related complications was found. PP is a safe, less invasive option and can be considered as a suitable measure for OSA assessment in this population.

Indexed as

Bariatric SurgeryObesity, MorbidSleep Apnea, ObstructiveContinuous Positive Airway PressureHumansMalePolysomnographyRetrospective StudiesBariatric surgeryContinuous positive airway pressureObstructive sleep apneaPolygraphyPolysomnographyPreoperative care

Identifiers

PMID35396662
OpenAlexW4223556877

What OpenQuestion holds

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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.