Evidence map›Paper›PMID 38254137›Full record

ArticleTrials2024

Effect of maternal oxygen supplementation for parturient undergoing elective cesarean section by high-flow nasal oxygen compared with room air on fetal acidemia: study protocol for a randomized controlled trial.

Yun-Hui Li, Gui-Yu Lei, Jun Guo, Meng Yi, Yu-Jing Fu, Gu-Yan Wang

Registry-linked trialOpen access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05921955 (Effect of Maternal Oxygen Supplementation by High-flow Nasal Oxygen Compared With Room Air on Fetal Acidemia), which is not on this map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 99% 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.

NCT05921955 nacompletednot on this map

Effect of Maternal Oxygen Supplementation by High-flow Nasal Oxygen Compared With Room Air on Fetal Acidemia

TypeinterventionalSponsorBeijing Tongren HospitalRan2023 to 2023Enrolled120ConditionsFetal AcidemiaArmsOptiflow high-flow nasal cannula system
3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

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

6 authors at 1 institution in 1 country.

Yun-Hui LiDepartment of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
Gui-Yu LeiDepartment of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
Jun GuoDepartment of Gynecologic and Obstetric, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
Meng YiDepartment of Gynecologic and Obstetric, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
Yu-Jing FuDepartment of Gynecologic and Obstetric, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
Gu-Yan WangDepartment of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China. guyanwang2006@163.com.ORCID http://orcid.org/0000-0001-6957-6356
Beijing Tongren Hospital · CN

Funding

Beijing Hospitals Authority Clinical Medicine Development of Special Funding Support ZYLX202103Beijing Hospitals Authority's Ascent Plan DFL20220203
6 · The paper itself

Abstract

backgroundMaternal oxygen supplementation is usually used as an intrauterine resuscitation technique to prevent fetal hypoxia and acidemia during delivery. However, there has been a great deal of controversy regarding the effects of prophylactic maternal oxygen during cesarean section, during which the incidence of fetal acidemia seems to be higher compared with that during labor. High-flow nasal oxygen (HFNO) can improve oxygenation better in patients with high-flow oxygen airflow. The purpose of this study is to determine whether maternal oxygen supplementation with HFNO has a positive effect on fetal acidemia during cesarean section through umbilical arterial blood gas analysis.

methodThis prospective, single-center, randomized, double-blinded trial will enroll 120 patients undergoing cesarean section. Participants will be randomly assigned to the HFNO group or air group at a 1:1 ratio. For parturients in the HFNO group, the flow rate is 40L/min, and the oxygen is heated to 37℃ with humidity 100% oxygen concentration through the Optiflow high-flow nasal oxygen system. And for the air group, the flow rate is 2 L/min with an air pattern through the same device. The primary outcome was umbilical artery (UA) lactate. Secondary outcomes include UA pH, PO DISCUSSION: Our study is the first trial investigating whether maternal oxygen supplementation with HFNO can reduce the umbilical artery lactate levels and the incidence of fetal acidemia in cesarean section under combined spinal-epidural anesthesia.

trial registrationClinicalTrials.gov NCT05921955. Registered on 27 June 2023.

Indexed as

AcidosisCesarean SectionFemaleHumansInfant, NewbornLactic AcidOxygenOxygen Inhalation TherapyPregnancyProspective StudiesRandomized Controlled Trials as TopicLactic AcidOxygenCesarean sectionFetal acidemiaHigh-flow nasal oxygenIntrauterine resuscitationOxygenUmbilical arterial lactate

Identifiers

PMID38254137
PMCPMC10802011
OpenAlexW4391106763

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Registered trials

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.