Evidence map›Paper›PMID 17047925›Full record

ArticleIntensive care medicine2006

Monitoring dead space during recruitment and PEEP titration in an experimental model.

Gerardo Tusman, Fernando Suarez-Sipmann, Stephan H Böhm, Tanja Pech, Hajo Reissmann, Gustavo Meschino, Adriana Scandurra, Göran Hedenstierna

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Article in Intensive care medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
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  6. Observational
  7. Dead space in acute respiratory distress syndrome.Annals of translational medicine · 2018
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  8. Exhaled COJournal of critical care · 2018
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 7 institutions in 5 countries.

Gerardo TusmanDepartment of Anesthesiology, Hospital Privado de Comunidad, Mar del Plata, Argentina. gtusman@hotmail.com
Fernando Suarez-Sipmann
Stephan H Böhm
Tanja Pech
Hajo Reissmann
Gustavo Meschino
Adriana Scandurra
Göran Hedenstierna
National University of Mar del Plata · ARHospital Privado de Comunidad · ARHospital Universitario Fundación Jiménez Díaz · ESUniversität Hamburg · DEUniversity Medical Center Hamburg-Eppendorf · DEUniversity of Veterinary Medicine Vienna · ATUppsala University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo test the usefulness of dead space for determining open-lung PEEP, the lowest PEEP that prevents lung collapse after a lung recruitment maneuver.

designProspective animal study.

settingDepartment of Clinical Physiology, University of Uppsala, Sweden. SUBJECTS: Eight lung-lavaged pigs.

interventionsAnimals were ventilated using constant flow mode with VT of 6ml/kg, respiratory rate of 30bpm, inspiratory-to-expiratory ratio of 1:2, and FiO(2) of 1. Baseline measurements were performed at 6cmH(2)O of PEEP. PEEP was increased in steps of 6cmH(2)O from 6 to 24cmH(2)O. Recruitment maneuver was achieved within 2min at pressure levels of 60/30cmH(2)O for Peak/PEEP. PEEP was decreased from 24 to 6cmH(2)O in steps of 2cmH(2)O and then to 0cmH(2)O. Each PEEP step was maintained for 10min. MEASUREMENTS AND

resultsAlveolar dead space (VD(alv)), the ratio of alveolar dead space to alveolar tidal volume (VD(alv)/VT(alv)), and the arterial to end-tidal PCO(2) difference (Pa-ET: CO(2)) showed a good correlation with PaO(2), normally aerated areas, and non-aerated CT areas in all animals (minimum-maximum r(2)=0.83-0.99; p<0.01). Lung collapse (non-aerated tissue>5%) started at 12[Symbol: see text]cmH(2)O PEEP; hence, open-lung PEEP was established at 14cmH(2)O. The receiver operating characteristics curve demonstrated a high specificity and sensitivity of VD(alv) (0.89 and 0.90), VD(alv)/VT(alv) (0.82 and 1.00), and Pa-ET: CO(2) (0.93 and 0.95) for detecting lung collapse.

conclusionsMonitoring of dead space was useful for detecting lung collapse and for establishing open-lung PEEP after a recruitment maneuver.

Indexed as

Respiratory Dead SpaceAnimalsPositive-Pressure RespirationProspective StudiesPulmonary AlveoliPulmonary AtelectasisPulmonary Gas ExchangePulmonary VentilationRespiratory Distress SyndromeRespiratory Function TestsROC CurveSensitivity and SpecificitySwineTidal Volume

Identifiers

PMID17047925
OpenAlexW2050817866

What OpenQuestion holds

Textmetadata
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.