Serum soluble triggering receptor expressed on myeloid cells-1 in acute respiratory distress syndrome: A prospective observational cohort study
Journal
Journal of the Formosan Medical Association
Journal Volume
109
Journal Issue
11
Pages
800-809
Date Issued
2010
Author(s)
Abstract
Background/Purpose: Serum soluble triggering receptor expressed on myeloid cells-1 (sTREM-1), a detector of acute inflammatory response to microbial products and a good marker for diagnosing sepsis and pneumonia, has not yet been described as a predictor for infection or a prognostic factor in patients with acute respiratory distress syndrome (ARDS). Methods: This prospective observational cohort study enrolled 63 ventilated adult patients with ARDS; 50 as septic and 13 as non-septic, and followed them for 28 days in intensive care units at a university hospital in Taiwan. Serial serum sTREM-1 levels and cytokines, such as interleukin (IL)-1, IL-8, and tumor necrosis factor-α, on days 1, 3, 5, 7 and 14 were measured by an enzyme-linked immunosorbent assay. The association between biomarkers and clinical infectious diagnosis/outcome in ARDS was explored. Results: Serum sTREM-1 and cytokine levels could not differentiate septic from non-septic ARDS. Serum log sTREM-1 and inflammatory cytokine levels were correlated positively (r = 0.325 for IL-1β; r = 0.247 for IL-8; r = 0.480 for tumor necrosis factor-α). As prognostic factors, higher serum sTREM-1 level on day 1 and increasing levels over time, especially in the first 5 days, were independent predictors of mortality on day 28, using a multivariate Cox regression model. Serum sTREM-1 levels remained stable or even increased in the non-surviving patients, but decreased in the survivors. Conclusion: Serum sTREM-1 level might not be a reliable marker for infection in ARDS patients. However, as an inflammatory marker, initial serum sTREM-1 level and its trend over time, especially in the first 5 days, could be predictive of short-term mortality. A progressive decline in serum sTREM-1 levels during followup indicates a favorable outcome, whereas persistently elevated sTREM-1 indicates a poor prognosis and should lead to a re-evaluation of therapy. ? 2010 Elsevier & Formosan Medical Association.
SDGs
Other Subjects
biological marker; cytokine; interleukin 1; interleukin 1beta; interleukin 8; triggering receptor expressed on myeloid cells 1; tumor necrosis factor alpha; adult; adult respiratory distress syndrome; aged; article; blood level; cohort analysis; controlled study; diagnostic test accuracy study; enzyme linked immunosorbent assay; female; human; independent variable; inflammation; major clinical study; male; observational study; pneumonia; prognosis; proportional hazards model; prospective study; reliability; sepsis; Taiwan
Publisher
Elsevier B.V.
Type
journal article