Evidence map›Paper›PMID 20633284›Full record

Trial reportCritical care (London, England)2010

Computed tomography assessment of exogenous surfactant-induced lung reaeration in patients with acute lung injury.

Qin Lu, Mao Zhang, Cassio Girardi, Belaïd Bouhemad, Jozef Kesecioglu, Jean-Jacques Rouby

Registry-linked trialOpen access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Critical care (London, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00742482 (A Phase III Study With Freeze Dried HL10, Three Dosages of 200 mg/kg Ideal Body Weight Versus Standard Therapy in ALI/ARDS Patients), which is not on this map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 11% 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.

NCT00742482 phase3terminatednot on this map

A Phase III Study With Freeze Dried HL10, Three Dosages of 200 mg/kg Ideal Body Weight Versus Standard Therapy in ALI/ARDS Patients

TypeinterventionalSponsorLEO PharmaRan2003 to 2005Enrolled418ConditionsAcute Lung Injury, Acute Respiratory Distress SyndromeArmsHL 10
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 5 countries.

Qin LuMultidisciplinary Intensive Care Unit, Department of Anesthesiology and Critical Care Medicine, Assistance Publique-Hôpitaux de Paris, La Pitié-Salpêtrière Hospital, UPMC Univ Paris 06, 47-83 boulevard de l'hôpital, 75013 Paris, France. qin.lu@psl.aphp.fr
Mao Zhang
Cassio Girardi
Belaïd Bouhemad
Jozef Kesecioglu
Jean-Jacques Rouby
Pitié-Salpêtrière Hospital · FRAssistance Publique – Hôpitaux de Paris · FRHeidelberg University · DESecond Affiliated Hospital of Zhejiang University · CNUniversidade Federal de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPrevious randomized trials failed to demonstrate a decrease in mortality of patients with acute lung injury treated by exogenous surfactant. The aim of this prospective randomized study was to evaluate the effects of exogenous porcine-derived surfactant on pulmonary reaeration and lung tissue in patients with acute lung injury and acute respiratory distress syndrome (ALI/ARDS).

methodsTwenty patients with ALI/ARDS were studied (10 treated by surfactant and 10 controls) in whom a spiral thoracic computed tomography scan was acquired before (baseline), 39 hours and 7 days after the first surfactant administration. In the surfactant group, 3 doses of porcine-derived lung surfactant (200 mg/kg/dose) were instilled in both lungs at 0, 12 and 36 hours. Each instillation was followed by recruitment maneuvers. Gas and tissue volumes were measured separately in poorly/nonaerated and normally aerated lung areas before and seven days after the first surfactant administration. Surfactant-induced lung reaeration was defined as an increase in gas volume in poorly/non-aerated lung areas between day seven and baseline compared to the control group.

resultsAt day seven, surfactant induced a significant increase in volume of gas in poorly/non-aerated lung areas (320 ± 125 ml versus 135 ± 161 ml in controls, P = 0.01) and a significant increase in volume of tissue in normally aerated lung areas (189 ± 179 ml versus -15 ± 105 ml in controls, P < 0.01). PaO2/FiO2 ratio was not different between the surfactant treated group and control group after surfactant replacement.

conclusionsIntratracheal surfactant replacement induces a significant and prolonged lung reaeration. It also induces a significant increase in lung tissue in normally aerated lung areas, whose mechanisms remain to be elucidated.

trial registrationNCT00742482.

Indexed as

Acute Lung InjuryFemaleHumansLungMaleMiddle AgedPulmonary Gas ExchangePulmonary SurfactantsRespiratory Distress SyndromeTomography, X-Ray ComputedTreatment OutcomePulmonary Surfactants

Identifiers

PMID20633284
PMCPMC2945105
OpenAlexW2146415881

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Registered trials

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.