Evidence map›Paper›PMID 26694915›Full record

ArticleIntensive care medicine experimental2015

The effects of airway pressure release ventilation on respiratory mechanics in extrapulmonary lung injury.

Michaela Kollisch-Singule, Bryanna Emr, Sumeet V Jain, Penny Andrews, Joshua Satalin, Jiao Liu, Elizabeth Porcellio, Van Kenyon, Guirong Wang, William Marx and 3 more

Open access · goldAbstract read
In one paragraph

Article in Intensive care medicine experimental, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 60 citations in OpenAlex.

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  14. Unshrinking the baby lung to calm the VILI vortex.Critical care (London, England) · 2022
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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

13 authors at 2 institutions in 1 country.

Michaela Kollisch-SinguleDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. KolliscM@upstate.edu.
Bryanna EmrDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. EmrB@upstate.edu.
Sumeet V JainDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. JainSu@upstate.edu.
Penny AndrewsDepartment of Trauma Critical Care Medicine, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD, USA. plandrews@intensivecareonline.com.
Joshua SatalinDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. satalinj@upstate.edu.
Jiao LiuDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. catherine015@163.com.
Elizabeth PorcellioDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. PorcellE@upstate.edu.
Van KenyonDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. KenyonV@upstate.edu.
Guirong WangDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. WangG@upstate.edu.
William MarxDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. MarxW@upstate.edu.
Louis A GattoDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. Louis.Gatto@cortland.edu.
Gary F NiemanDepartment of Surgery, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY, 13210, USA. NiemanG@upstate.edu.
Nader M HabashiDepartment of Trauma Critical Care Medicine, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD, USA. nmh@xmxmail.com.
SUNY Upstate Medical University · USUniversity of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLung injury is often studied without consideration for pathologic changes in the chest wall. In order to reduce the incidence of lung injury using preemptive mechanical ventilation, it is important to recognize the influence of altered chest wall mechanics on disease pathogenesis. In this study, we hypothesize that airway pressure release ventilation (APRV) may be able to reduce the chest wall elastance associated with an extrapulmonary lung injury model as compared with low tidal volume (LVt) ventilation.

methodsFemale Yorkshire pigs were anesthetized and instrumented. Fecal peritonitis was established, and the superior mesenteric artery was clamped for 30 min to induce an ischemia/reperfusion injury. Immediately following injury, pigs were randomized into (1) LVt (n = 3), positive end-expiratory pressure (PEEP) 5 cmH2O, V t 6 cc kg(-1), FiO2 21 %, and guided by the ARDSnet protocol or (2) APRV (n = 3), P High 16-22 cmH2O, P Low 0 cmH2O, T High 4.5 s, T Low set to terminate the peak expiratory flow at 75 %, and FiO2 21 %. Pigs were monitored continuously for 48 h. Lung samples and bronchoalveolar lavage fluid were collected at necropsy.

resultsLVt resulted in mild acute respiratory distress syndrome (ARDS) (PaO2/FiO2 = 226.2 ± 17.1 mmHg) whereas APRV prevented ARDS (PaO2/FiO2 = 465.7 ± 66.5 mmHg; p < 0.05). LVt had a reduced surfactant protein A concentration and increased histologic injury as compared with APRV. The plateau pressure in APRV (34.3 ± 0.9 cmH2O) was significantly greater than LVt (22.2 ± 2.0 cmH2O; p < 0.05) yet transpulmonary pressure between groups was similar (p > 0.05). This was because the pleural pressure was significantly lower in LVt (7.6 ± 0.5 cmH2O) as compared with APRV (17.4 ± 3.5 cmH2O; p < 0.05). Finally, the elastance of the lung, chest wall, and respiratory system were all significantly greater in LVt as compared with APRV (all p < 0.05).

conclusionsAPRV preserved surfactant and lung architecture and maintenance of oxygenation. Despite the greater plateau pressure and tidal volumes in the APRV group, the transpulmonary pressure was similar to that of LVt. Thus, the majority of the plateau pressure in the APRV group was distributed as pleural pressure in this extrapulmonary lung injury model. APRV maintained a normal lung elastance and an open, homogeneously ventilated lung without increasing lung stress.

Indexed as

Airway pressure release ventilation (APRV)Chest wall elastanceLow tidal volume ventilationLung injuryTranspulmonary pressure

Identifiers

PMID26694915
PMCPMC4688284
OpenAlexW2197443566

What OpenQuestion holds

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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.