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Lung Compliance and Outcomes in Patients With Acute Respiratory Distress Syndrome Receiving ECMO.
- Source :
-
The Annals of thoracic surgery [Ann Thorac Surg] 2019 Jul; Vol. 108 (1), pp. 176-182. Date of Electronic Publication: 2019 Mar 02. - Publication Year :
- 2019
-
Abstract
- Background: Limited data are available regarding mechanical ventilation strategies in patients with acute respiratory distress syndrome receiving extracorporeal membrane oxygenation (ECMO).<br />Methods: A retrospective analysis of acute respiratory distress syndrome patients on ECMO was conducted in 9 hospitals in Korea. Data on ventilator settings (pre-ECMO and 0, 4, 24, and 48 hours after ECMO) were collected. Based on the effect of the duration and intensity of mechanical ventilator on outcomes, time-weighted average values were calculated for ventilator parameters.<br />Results: The 56 patients included in the study had a mean age of 55.5 years. The hospital and 6-month mortality rates were 48.1% and 54.0%, respectively, with a median ECMO duration of 9.4 days. After initiation of ECMO, peak inspiratory pressure, above positive end-expiratory pressure, tidal volume, and respiration rate were reduced, while lung compliance did not change significantly. Before and during ECMO support, tidal volume and lung compliance were higher in 6-month survivors than in nonsurvivors. In Cox proportional models, both lung compliance (odds ratio, 0.961; 95% confidence interval, 0.928 to 0.995) and time-weighted average-lung compliance (odds ratio, 0.943; 95% confidence interval, 0.903 to 0.986) were significantly associated with 6-month mortality. Kaplan-Meier curves revealed that patients with higher lung compliance before ECMO had a longer survival time at the 6-month follow-up than did those with lower lung compliance.<br />Conclusions: Lung compliance, whether before or during ECMO, may be an important predictor of outcome in acute respiratory distress syndrome patients receiving ECMO. However, this result requires confirmation in larger clinical studies.<br /> (Copyright © 2019 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)
- Subjects :
- Adult
Aged
Humans
Kaplan-Meier Estimate
Middle Aged
Positive-Pressure Respiration, Intrinsic
Proportional Hazards Models
Respiration, Artificial
Respiratory Distress Syndrome mortality
Respiratory Distress Syndrome physiopathology
Respiratory Function Tests
Respiratory Rate
Retrospective Studies
Tidal Volume
Extracorporeal Membrane Oxygenation methods
Lung Compliance
Respiratory Distress Syndrome therapy
Subjects
Details
- Language :
- English
- ISSN :
- 1552-6259
- Volume :
- 108
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- The Annals of thoracic surgery
- Publication Type :
- Academic Journal
- Accession number :
- 30836100
- Full Text :
- https://doi.org/10.1016/j.athoracsur.2019.01.055