Evidence map›Paper›PMID 23232188›Full record

Observational studyCritical care (London, England)2012

The clinical usefulness of extravascular lung water and pulmonary vascular permeability index to diagnose and characterize pulmonary edema: a prospective multicenter study on the quantitative differential diagnostic definition for acute lung injury/acute respiratory distress syndrome.

Shigeki Kushimoto, Yasuhiko Taira, Yasuhide Kitazawa, Kazuo Okuchi, Teruo Sakamoto, Hiroyasu Ishikura, Tomoyuki Endo, Satoshi Yamanouchi, Takashi Tagami, Junko Yamaguchi and 16 more

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Critical care (London, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 3 pooled it
9.9field-weighted citation impact, top 1% 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

63 citing papers in PubMed, 3 syntheses or guidelines pooled it, 143 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Trial
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  10. The beta agonist lung injury trial prevention. A randomized controlled trial.American journal of respiratory and critical care medicine · 2014
    Trial
  11. Article
  12. Article
  13. Article
  14. Current standard of care for septic shock.Intensive care medicine · 2026
    Review
  15. Pulmonary embolism consensus.Archivos de cardiologia de Mexico · 2026
    Article
  16. Observational
  17. Observational
  18. Article
  19. Exploration of the anti-inflammatory potential ofFrontiers in pharmacology · 2024
    Article
  20. Review

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

26 authors at 20 institutions in 1 country.

Shigeki Kushimoto
Yasuhiko Taira
Yasuhide Kitazawa
Kazuo Okuchi
Teruo Sakamoto
Hiroyasu Ishikura
Tomoyuki Endo
Satoshi Yamanouchi
Takashi Tagami
Junko Yamaguchi
Kazuhide Yoshikawa
Manabu Sugita
Yoichi Kase
Takashi Kanemura
Hiroyuki Takahashi
Yuichi Kuroki
Hiroo Izumino
Hiroshi Rinka
Ryutarou Seo
Makoto Takatori
Tadashi Kaneko
Toshiaki Nakamura
Takayuki Irahara
Nobuyuki Saito
Akihiro Watanabe
PiCCO Pulmonary Edema Study Group
Kansai Medical University · JPNippon Medical School · JPTohoku University · JPChiba Hokusou Hospital · JPChukyo Hospital · JPFukuoka University · JPHiroshima Prefectural Hospital · JPJikei University School of Medicine · JPJuntendo University Nerima Hospital · JPKobe City Medical Center General Hospital · JPKurume University · JPNagasaki University Hospital · JPNara Medical University · JPNational Hospital Organization · JPNihon University · JPNippon Medical School Hospital · JPOsaka City General Hospital · JPSt. Marianna University School of Medicine · JPTohoku University Hospital · JPTokyo Medical and Dental University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAcute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is characterized by features other than increased pulmonary vascular permeability. Pulmonary vascular permeability combined with increased extravascular lung water content has been considered a quantitative diagnostic criterion of ALI/ARDS. This prospective, multi-institutional, observational study aimed to clarify the clinical pathophysiological features of ALI/ARDS and establish its quantitative diagnostic criteria.

methodsThe extravascular lung water index (EVLWI) and the pulmonary vascular permeability index (PVPI) were measured using the transpulmonary thermodilution method in 266 patients with PaO2/FiO2 ratio ≤ 300 mmHg and bilateral infiltration on chest radiography, in 23 ICUs of academic tertiary referral hospitals. Pulmonary edema was defined as EVLWI ≥ 10 ml/kg. Three experts retrospectively determined the pathophysiological features of respiratory insufficiency by considering the patients' history, clinical presentation, chest computed tomography and radiography, echocardiography, EVLWI and brain natriuretic peptide level, and the time course of all preceding findings under systemic and respiratory therapy.

resultsPatients were divided into the following three categories on the basis of the pathophysiological diagnostic differentiation of respiratory insufficiency: ALI/ARDS, cardiogenic edema, and pleural effusion with atelectasis, which were noted in 207 patients, 26 patients, and 33 patients, respectively. EVLWI was greater in ALI/ARDS and cardiogenic edema patients than in patients with pleural effusion with atelectasis (18.5 ± 6.8, 14.4 ± 4.0, and 8.3 ± 2.1, respectively; P < 0.01). PVPI was higher in ALI/ARDS patients than in cardiogenic edema or pleural effusion with atelectasis patients (3.2 ± 1.4, 2.0 ± 0.8, and 1.6 ± 0.5; P < 0.01). In ALI/ARDS patients, EVLWI increased with increasing pulmonary vascular permeability (r = 0.729, P < 0.01) and was weakly correlated with intrathoracic blood volume (r = 0.236, P < 0.01). EVLWI was weakly correlated with the PaO2/FiO2 ratio in the ALI/ARDS and cardiogenic edema patients. A PVPI value of 2.6 to 2.85 provided a definitive diagnosis of ALI/ARDS (specificity, 0.90 to 0.95), and a value < 1.7 ruled out an ALI/ARDS diagnosis (specificity, 0.95).

conclusionPVPI may be a useful quantitative diagnostic tool for ARDS in patients with hypoxemic respiratory failure and radiographic infiltrates.

trial registrationUMIN-CTR ID UMIN000003627.

Indexed as

Acute Lung InjuryAgedCapillary PermeabilityDiagnosis, DifferentialExtravascular Lung WaterFemaleHumansLungMaleProspective StudiesPulmonary EdemaRespiratory Distress SyndromeThermodilution

Identifiers

PMID23232188
PMCPMC3672621
OpenAlexW2115238667

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.