Evidence map›Paper›PMID 28977202›Full record

Trial reportBrazilian journal of cardiovascular surgery

Effect of Different Levels of Peep on Oxygenation during Non-Invasive Ventilation in Patients Submitted to CABG Surgery: Randomized Clinical Trial.

André Luiz Lisboa Cordeiro, Caroline Aparecida Gruska, Pâmella Ysla, Amanda Queiroz, Sarah Carvalho de Oliveira Nogueira, Maria Clara Leite, Bruno Freitas, André Raimundo Guimarães

Open access · diamondAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Brazilian journal of cardiovascular surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 28% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Trial
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

8 authors at 2 institutions in 1 country.

André Luiz Lisboa CordeiroEscola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador, BA, Brazil.
Caroline Aparecida GruskaFaculdade Nobre (FAN), Feira de Santana, BA, Brazil.
Pâmella YslaFaculdade Nobre (FAN), Feira de Santana, BA, Brazil.
Amanda QueirozFaculdade Nobre (FAN), Feira de Santana, BA, Brazil.
Sarah Carvalho de Oliveira NogueiraInstituto Nobre de Cardiologia (INCARDIO), Feira de Santana, BA, Brazil.
Maria Clara LeiteInstituto Nobre de Cardiologia (INCARDIO), Feira de Santana, BA, Brazil.
Bruno FreitasInstituto Nobre de Cardiologia (INCARDIO), Feira de Santana, BA, Brazil.
André Raimundo GuimarãesInstituto Nobre de Cardiologia (INCARDIO), Feira de Santana, BA, Brazil.
Escola Bahiana de Medicina e Saúde Pública · BRUniversidade Estadual de Feira de Santana · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDuring and after coronary artery bypass grafting, a decline in multifactor lung function is observed. Due to this fact, some patients may benefit from non-invasive ventilation after extubation targeting lung expansion and consequently improved oxygenation.

objectiveTo test the hypothesis that higher levels of positive end expiration pressure during non-invasive ventilation improves oxygenation in patients undergoing coronary artery bypass grafting.

methodsA randomized clinical trial was conducted at Instituto Nobre de Cardiologia in Feira de Santana. On the first day after surgery, the patients were randomized: Group PEEP 10, Group PEEP 12 and Group PEEP 15 who underwent non-invasive ventilation with positive end expiration pressure level. All patients were submitted to analysis blood pressure oxygen (PaO2), arterial oxygen saturation (SaO2) and oxygenation index (PaO2/FiO2).

resultsThirty patients were analyzed, 10 in each group, with 63.3% men with a mean age of 61.1±12.2 years. Mean pulmonary expansion pre-therapy PaO2 was generally 121.9±21.6 to 136.1±17.6 without statistical significance in the evaluation among the groups. This was also present in PaO2/FiO2 and SaO2. Statistical significance was only present in pre and post PEEP 15 when assessing the PaO2 and SaO2 (P=0.02).

conclusionBased on the findings of this study, non-invasive ventilation with PEEP 15 represented an improvement in oxygenation levels of patients undergoing coronary artery bypass grafting.

Indexed as

Coronary Artery BypassAgedFemaleHumansMaleMiddle AgedNoninvasive VentilationOxygenPositive-Pressure RespirationPostoperative PeriodPulmonary Gas ExchangeTime FactorsOxygen

Identifiers

PMID28977202
PMCPMC5613715
OpenAlexW2751298468

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.