Evidence map›Paper›PMID 22584817›Full record

ArticleJournal of anesthesia2012

Impact of changes of positive end-expiratory pressure on functional residual capacity at low tidal volume ventilation during general anesthesia.

Daizoh Satoh, Shin Kurosawa, Wakaba Kirino, Toshihiro Wagatsuma, Yutaka Ejima, Akiko Yoshida, Hiroaki Toyama, Kei Nagaya

Open access · hybridAbstract read
In one paragraph

Article in Journal of anesthesia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

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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.

Daizoh SatohDepartment of Anesthesiology and Perioperative Medicine, Tohoku University Postgraduate Medical School, 1-1 Seiryomachi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan. ds0226@fsinet.or.jp
Shin Kurosawa
Wakaba Kirino
Toshihiro Wagatsuma
Yutaka Ejima
Akiko Yoshida
Hiroaki Toyama
Kei Nagaya
Tohoku University · JPTohoku Medical and Pharmaceutical University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSeveral reports in the literature have described the effects of positive end-expiratory pressure (PEEP) level upon functional residual capacity (FRC) in ventilated patients during general anesthesia. This study compares FRC in mechanically low tidal volume ventilation with different PEEP levels during upper abdominal surgery.

methodsBefore induction of anesthesia (awake) for nine patients with upper abdominal surgery, a tight-seal facemask was applied with 2 cmH(2)O pressure support ventilation and 100 % O(2) during FRC measurements conducted on patients in a supine position. After tracheal intubation, lungs were ventilated with bilevel airway pressure with a volume guarantee (7 ml/kg predicted body weight) and with an inspired oxygen fraction (FIO(2)) of 0.4. PEEP levels of 0, 5, and 10 cmH(2)O were used. Each level of 5 and 10 cmH(2)O PEEP was maintained for 2 h. FRC was measured at each PEEP level.

resultsFRC awake was significantly higher than that at PEEP 0 cmH(2)O (P < 0.01). FRC at PEEP 0 cmH(2)O was significantly lower than that at 10 cmH(2)O (P < 0.01). PaO(2)/FIO(2) awake was significantly higher than that for PEEP 0 cmH(2)O (P < 0.01). PaO(2)/FIO(2) at PEEP 0 cmH(2)O was significantly lower than that for PEEP 5 cmH(2)O or PEEP 10 cmH(2)O (P < 0.01). Furthermore, PEEP 0 cmH(2)O, PEEP 5 cmH(2)O after 2 h, and PEEP 10 cmH(2)O after 2 h were correlated with FRC (R = 0.671, P < 0.01) and PaO(2)/FIO(2) (R = 0.642, P < 0.01).

conclusionsResults suggest that PEEP at 10 cmH(2)O is necessary to maintain lung function if low tidal volume ventilation is used during upper abdominal surgery.

Indexed as

AbdomenAgedAnesthesia, GeneralFemaleFunctional Residual CapacityHemodynamicsHumansLungMaleOxygenPositive-Pressure RespirationPulmonary Gas ExchangeRespirationRespiration, ArtificialTidal VolumeOxygen

Identifiers

PMID22584817
PMCPMC3468745
OpenAlexW2027654980

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.