Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
BMJ. 2012 Apr 5;344:e2124. doi: 10.1136/bmj.e2124.

Lung protective mechanical ventilation and two year survival in patients with acute lung injury: prospective cohort study.

Author information

  • 1Outcomes After Critical Illness and Surgery Group, Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. Dale.Needham@jhmi.edu

Abstract

OBJECTIVE:

To evaluate the association of volume limited and pressure limited (lung protective) mechanical ventilation with two year survival in patients with acute lung injury.

DESIGN:

Prospective cohort study.

SETTING:

13 intensive care units at four hospitals in Baltimore, Maryland, USA.

PARTICIPANTS:

485 consecutive mechanically ventilated patients with acute lung injury.

MAIN OUTCOME MEASURE:

Two year survival after onset of acute lung injury.

RESULTS:

485 patients contributed data for 6240 eligible ventilator settings, as measured twice daily (median of eight eligible ventilator settings per patient; 41% of which adhered to lung protective ventilation). Of these patients, 311 (64%) died within two years. After adjusting for the total duration of ventilation and other relevant covariates, each additional ventilator setting adherent to lung protective ventilation was associated with a 3% decrease in the risk of mortality over two years (hazard ratio 0.97, 95% confidence interval 0.95 to 0.99, P=0.002). Compared with no adherence, the estimated absolute risk reduction in two year mortality for a prototypical patient with 50% adherence to lung protective ventilation was 4.0% (0.8% to 7.2%, P=0.012) and with 100% adherence was 7.8% (1.6% to 14.0%, P=0.011).

CONCLUSIONS:

Lung protective mechanical ventilation was associated with a substantial long term survival benefit for patients with acute lung injury. Greater use of lung protective ventilation in routine clinical practice could reduce long term mortality in patients with acute lung injury.

TRIAL REGISTRATION:

Clinicaltrials.gov NCT00300248.

Comment in

PMID:
22491953
[PubMed - indexed for MEDLINE]
PMCID:
PMC3320566
Free PMC Article

Images from this publication.See all images (4)Free text

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Write to the Help Desk