Evidence map›Paper›PMID 29040312›Full record

ArticlePloS one2017

End-tidal carbon dioxide measurement in preterm infants with low birth weight.

Hsin-Ju Lin, Ching-Tzu Huang, Hsiu-Feng Hsiao, Ming-Chou Chiang, Mei-Jy Jeng

Open 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. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. 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

5 authors at 2 institutions in 1 country.

Hsin-Ju LinDepartment of Respiratory Therapy, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Ching-Tzu HuangDepartment of Respiratory Therapy, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Hsiu-Feng HsiaoDepartment of Respiratory Therapy, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Ming-Chou ChiangDepartment of Respiratory Therapy, Chang Gung Memorial Hospital, Taoyuan, Taiwan.ORCID http://orcid.org/0000-0003-1109-0665
Mei-Jy JengInstitute of Emergency and Critical Care Medicine, National Yang-Ming University, Taipei, Taiwan.
National Yang Ming Chiao Tung University · TWChang Gung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThere are conflicting data regarding the use of end-tidal carbon dioxide (PetCO2) measurement in preterm infants. The aim of this study was to evaluate the effects of different dead space to tidal volume ratios (VD/VT) on the correlation between PetCO2 and arterial carbon dioxide pressure (PaCO2) in ventilated preterm infants with respiratory distress syndrome (RDS).

methodsWe enrolled ventilated preterm infants (with assist control mode or synchronous intermittent mandatory mode) with RDS who were treated with surfactant in this prospective study. Simultaneous PetCO2 and PaCO2 data pairs were obtained from ventilated neonates monitored using mainstream capnography. Data obtained before and after surfactant treatment were also analyzed.

resultsOne-hundred and one PetCO2 and PaCO2 pairs from 34 neonates were analyzed. There was a moderate correlation between PetCO2 and PaCO2 values (r = 0.603, P < 0.01). The correlation was higher in the post-surfactant treatment group (r = 0.786, P < 0.01) than the pre-surfactant treatment group (r = 0.235). The values of PaCO2 and PetCO2 obtained based on the treatment stage of surfactant therapy were 42.4 ± 8.6 mmHg and 32.6 ± 7.2 mmHg, respectively, in pre-surfactant treatment group, and 37.8 ± 10.3 mmHg and 33.7 ± 9.3 mmHg, respectively, in the post-surfactant treatment group. Furthermore, we found a significant decrease in VD/VT in the post-surfactant treatment group when compared to the pre-surfactant treatment group (P = 0.003).

conclusionsVD/VT decreased significantly after surfactant therapy and the correlation between PetCO2 and PaCO2 was higher after surfactant therapy in preterm infants with RDS.

Indexed as

Blood Gas AnalysisCarbon DioxideFemaleGestational AgeHumansInfant, Low Birth WeightInfant, NewbornInfant, PrematureMaleMonitoring, PhysiologicPartial PressureProspective StudiesPulmonary SurfactantsRespiration, ArtificialRespiratory Dead SpaceRespiratory Distress Syndrome, NewbornCarbon DioxidePulmonary Surfactants

Identifiers

PMID29040312
PMCPMC5645127
OpenAlexW2766389536

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.