Red cell distribution width in predicting 30-day mortality in patients with pulmonary embolism.

Abstract:

PURPOSE:The aim of the study was to investigate red cell distribution width (RDW) in predicting 30-day mortality in patients with pulmonary embolism (PE). METHODS:A single-center, retrospective study design was used between January 1, 2014, and February 1, 2016. The primary end point was 30-day mortality after admission. The RDW predicting value was assessed by receiver operating characteristic curves and area under the curve. RESULTS:A total of 309 patients with PE were included. The 30-day mortality was 14.9% (46/309). The mean RDW level was 13.9%±0.6% (range, 10.7%-21.9%) at admission. The 30-day mortality was higher in the high-RDW-level group compared with the normal-RDW-level group (12.5% vs 23.5%, χ2=5.140, P=.023), with an odds ratio of 2.164 (95% confidence interval [CI], 1.019-4.450). Logistic regression showed that presence of shock, RDW level, and simplified pulmonary embolism severity index (sPESI) were independent risk factors for 30-day mortality in patients with PE. After adjustment by these risk factors, the adjusted odds ratio was 1.439 (95% CI, 1.024-2.116). The area under the curve for RDW predicting the 30-day mortality was 0.6646 (95% CI, 0.5585-0.7518). The cutoff was 16%. The Youden index for RDW and sPESI was 0.400 and 0.453, respectively. When adding RDW into sPESI, the modified sPESI showed highest prediction accuracy, with Youden index 0.499. CONCLUSIONS:Our results suggested that the RDW is a simple and useful indicator in predicting 30-day mortality in patients with PE. However, this conclusion showed be confirmed by prospective study with large sample.

journal_name

J Crit Care

journal_title

Journal of critical care

authors

Zhou XY,Chen HL,Ni SS

doi

10.1016/j.jcrc.2016.09.024

subject

Has Abstract

pub_date

2017-02-01 00:00:00

pages

197-201

eissn

0883-9441

issn

1557-8615

pii

S0883-9441(16)30587-1

journal_volume

37

pub_type

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