Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.

<h4>Background</h4>Splenic injury frequently occurs after blunt abdominal trauma; however, limited epidemiological data regarding mortality are available. We aimed to investigate mortality rate trends after blunt splenic injury in Japan.<h4>Methods</h4>We retrospectively iden...

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Main Authors: Chie Tanaka, Takashi Tagami, Hisashi Matsumoto, Kiyoshi Matsuda, Shiei Kim, Yuta Moroe, Reo Fukuda, Kyoko Unemoto, Hiroyuki Yokota
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0184690&type=printable
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author Chie Tanaka
Takashi Tagami
Hisashi Matsumoto
Kiyoshi Matsuda
Shiei Kim
Yuta Moroe
Reo Fukuda
Kyoko Unemoto
Hiroyuki Yokota
author_facet Chie Tanaka
Takashi Tagami
Hisashi Matsumoto
Kiyoshi Matsuda
Shiei Kim
Yuta Moroe
Reo Fukuda
Kyoko Unemoto
Hiroyuki Yokota
author_sort Chie Tanaka
collection DOAJ
description <h4>Background</h4>Splenic injury frequently occurs after blunt abdominal trauma; however, limited epidemiological data regarding mortality are available. We aimed to investigate mortality rate trends after blunt splenic injury in Japan.<h4>Methods</h4>We retrospectively identified 1,721 adults with blunt splenic injury (American Association for the Surgery of Trauma splenic injury scale grades III-V) from the 2004-2014 Japan Trauma Data Bank. We grouped the records of these patients into 3 time phases: phase I (2004-2008), phase II (2009-2012), and phase III (2013-2014). Over the 3 phases, we analysed 30-day mortality rates and investigated their association with the prevalence of certain initial interventions (Mantel-Haenszel trend test). We further performed multiple imputation and multivariable analyses for comparing the characteristics and outcomes of patients who underwent TAE or splenectomy/splenorrhaphy, adjusting for known potential confounders and for within-hospital clustering using generalised estimating equation.<h4>Results</h4>Over time, there was a significant decrease in 30-day mortality after splenic injury (p < 0.01). Logistic regression analysis revealed that mortality significantly decreased over time (from phase I to phase II, odds ratio: 0.39, 95% confidence interval: 0.22-0.67; from phase I to phase III, odds ratio: 0.34, 95% confidence interval: 0.19-0.62) for the overall cohort. While the 30-day mortality for splenectomy/splenorrhaphy diminished significantly over time (p = 0.01), there were no significant differences regarding mortality for non-operative management, with or without transcatheter arterial embolisation (p = 0.43, p = 0.29, respectively).<h4>Conclusions</h4>In Japan, in-hospital 30-day mortality rates decreased significantly after splenic injury between 2004 and 2014, even after adjustment for within-hospital clustering and other factors independently associated with mortality. Over time, mortality rates decreased significantly after splenectomy/splenorrhaphy, but not after non-operative management. This information is useful for clinicians when making decisions about treatments for patients with blunt splenic injury.
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spelling doaj-art-d4ea0ae5c32d41d492f4ed385eb4c7df2025-08-20T03:04:36ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01129e018469010.1371/journal.pone.0184690Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.Chie TanakaTakashi TagamiHisashi MatsumotoKiyoshi MatsudaShiei KimYuta MoroeReo FukudaKyoko UnemotoHiroyuki Yokota<h4>Background</h4>Splenic injury frequently occurs after blunt abdominal trauma; however, limited epidemiological data regarding mortality are available. We aimed to investigate mortality rate trends after blunt splenic injury in Japan.<h4>Methods</h4>We retrospectively identified 1,721 adults with blunt splenic injury (American Association for the Surgery of Trauma splenic injury scale grades III-V) from the 2004-2014 Japan Trauma Data Bank. We grouped the records of these patients into 3 time phases: phase I (2004-2008), phase II (2009-2012), and phase III (2013-2014). Over the 3 phases, we analysed 30-day mortality rates and investigated their association with the prevalence of certain initial interventions (Mantel-Haenszel trend test). We further performed multiple imputation and multivariable analyses for comparing the characteristics and outcomes of patients who underwent TAE or splenectomy/splenorrhaphy, adjusting for known potential confounders and for within-hospital clustering using generalised estimating equation.<h4>Results</h4>Over time, there was a significant decrease in 30-day mortality after splenic injury (p < 0.01). Logistic regression analysis revealed that mortality significantly decreased over time (from phase I to phase II, odds ratio: 0.39, 95% confidence interval: 0.22-0.67; from phase I to phase III, odds ratio: 0.34, 95% confidence interval: 0.19-0.62) for the overall cohort. While the 30-day mortality for splenectomy/splenorrhaphy diminished significantly over time (p = 0.01), there were no significant differences regarding mortality for non-operative management, with or without transcatheter arterial embolisation (p = 0.43, p = 0.29, respectively).<h4>Conclusions</h4>In Japan, in-hospital 30-day mortality rates decreased significantly after splenic injury between 2004 and 2014, even after adjustment for within-hospital clustering and other factors independently associated with mortality. Over time, mortality rates decreased significantly after splenectomy/splenorrhaphy, but not after non-operative management. This information is useful for clinicians when making decisions about treatments for patients with blunt splenic injury.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0184690&type=printable
spellingShingle Chie Tanaka
Takashi Tagami
Hisashi Matsumoto
Kiyoshi Matsuda
Shiei Kim
Yuta Moroe
Reo Fukuda
Kyoko Unemoto
Hiroyuki Yokota
Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
PLoS ONE
title Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
title_full Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
title_fullStr Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
title_full_unstemmed Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
title_short Recent trends in 30-day mortality in patients with blunt splenic injury: A nationwide trauma database study in Japan.
title_sort recent trends in 30 day mortality in patients with blunt splenic injury a nationwide trauma database study in japan
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0184690&type=printable
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