Evidence map›Paper›PMID 34143265›Full record

ArticleArchives of gynecology and obstetrics2022

Does wearing double surgical masks during the COVID-19 pandemic reduce maternal oxygen saturation in term pregnant women?: A prospective study.

Mehmet Murat Isikalan, Buşra Özkaya, Eren Berkay Özkaya, Meryem Gümüş, Enes Ferlibaş, Ali Acar

Open access · bronzeAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Archives of gynecology and obstetrics, 2022. 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
0.6field-weighted citation impact, top 29% 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, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Mehmet Murat IsikalanDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey. muratisikalan@gmail.com.ORCID 0000-0002-5766-7063
Buşra ÖzkayaDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.ORCID 0000-0002-5225-4956
Eren Berkay ÖzkayaDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.ORCID 0000-0003-1866-2611
Meryem GümüşDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.ORCID 0000-0002-2964-3718
Enes FerlibaşDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.ORCID 0000-0001-7990-6902
Ali AcarDepartment of Gynecology & Obstetrics, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.ORCID 0000-0002-9074-258X
Necmettin Erbakan University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to compare the effects of using single and double surgical masks (SM) on maternal oxygen saturation in pregnant women.

methodsIn this prospective study, single or double SM were worn by term pregnant women who applied for routine controls. The vital signs of the participants such as oxygen saturation, pulse, respiratory rate, fever, systolic and diastolic blood pressure were measured at admission and 30 min later.

resultsThere were 223 participants in the single SM group and 231 participants in the double SM group. Thirty minutes after putting on the mask, there was no significant difference in the proportion of patients whose oxygen saturation fell below 95 (3.6 vs 5.6%, p = 0.301). No significant difference was observed between the admission and 30 min oxygen saturation levels of the pregnant women in the single SM group. However, maternal oxygen saturation after 30 min of the pregnant women in the double SM group was significantly lower (97.4 ± 1.1 vs 96.6 ± 1.3, p < 0.001). No significant changes were observed in the vital signs of either groups.

conclusionWhen using double SM, oxygen saturation is significantly reduced compared to pre-mask values. Nevertheless, it seems difficult to say that these decreases have clinical significance.

Indexed as

COVID-19MasksFemaleHumansOxygenOxygen SaturationPandemicsPregnancyPregnant PeopleProspective StudiesSARS-CoV-2OxygenCOVID-19Double maskOxygen saturationSurgical maskTerm-pregnancy

Identifiers

PMID34143265
PMCPMC8212079
OpenAlexW3172860001

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.