Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection

Aim A small spleen, which is occasionally found in patients with pneumococcal sepsis, may increase pneumococcal susceptibility because of splenic malfunction. However, a small spleen may also originate from severe disease. We carried out a retrospective study to evaluate the association between sple...

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Main Authors: Yasutaka Koga, Motoki Fujita, Takashi Nakahara, Takeshi Yagi, Takashi Miyauchi, Kotaro Kaneda, Yoshikatsu Kawamura, Yasutaka Oda, Ryosuke Tsuruta
Format: Article
Language:English
Published: Wiley 2016-10-01
Series:Acute Medicine & Surgery
Subjects:
Online Access:https://doi.org/10.1002/ams2.204
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author Yasutaka Koga
Motoki Fujita
Takashi Nakahara
Takeshi Yagi
Takashi Miyauchi
Kotaro Kaneda
Yoshikatsu Kawamura
Yasutaka Oda
Ryosuke Tsuruta
author_facet Yasutaka Koga
Motoki Fujita
Takashi Nakahara
Takeshi Yagi
Takashi Miyauchi
Kotaro Kaneda
Yoshikatsu Kawamura
Yasutaka Oda
Ryosuke Tsuruta
author_sort Yasutaka Koga
collection DOAJ
description Aim A small spleen, which is occasionally found in patients with pneumococcal sepsis, may increase pneumococcal susceptibility because of splenic malfunction. However, a small spleen may also originate from severe disease. We carried out a retrospective study to evaluate the association between splenic volume and severe pneumococcal sepsis or disease severity. Methods We reviewed the medical records of 23 patients with severe pneumococcal sepsis treated at our institution between January 2004 and September 2015 (pneumococcal group) and 61 patients with severe non‐pneumococcal bacteremia treated between April 2011 and September 2015 (control group). Splenic volume measured by abdominal computed tomography on admission was compared between the two groups. Correlations between Acute Physiology and Chronic Health Evaluation (APACHE) II scores and splenic volume on admission and the change in splenic volume from the non‐septic state to admission were also determined. Results Splenic volume on admission was significantly smaller (P = 0.001) and a small spleen was more frequent (P < 0.001) in the pneumococcal group. The APACHE II score was negatively correlated with splenic volume on admission (r = −0.46, P < 0.001) and the change in splenic volume (r = −0.44, P = 0.004). Pneumococcal infection (odds ratio 13.1, 95% confidence interval 2.6–65.7; P = 0.002) and APACHE II score (odds ratio 1.2, 95% confidence interval 1.1–1.3; P = 0.002) were independently associated with small spleen. Conclusion Splenic volume decreased with increasing severity of severe sepsis. A small spleen was also associated with severe pneumococcal infection.
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spelling doaj.art-47c7e540318d4c19a8137a95d816a7582022-12-21T20:24:48ZengWileyAcute Medicine & Surgery2052-88172016-10-013433934410.1002/ams2.204Splenic volume in severe sepsis is associated with disease severity and pneumococcal infectionYasutaka Koga0Motoki Fujita1Takashi Nakahara2Takeshi Yagi3Takashi Miyauchi4Kotaro Kaneda5Yoshikatsu Kawamura6Yasutaka Oda7Ryosuke Tsuruta8Advanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAcute and General Medicine Yamaguchi University Graduate School of Medicine Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAcute and General Medicine Yamaguchi University Graduate School of Medicine Ube Yamaguchi JapanAdvanced Medical Emergency and Critical Care Center Yamaguchi University Hospital Ube Yamaguchi JapanAim A small spleen, which is occasionally found in patients with pneumococcal sepsis, may increase pneumococcal susceptibility because of splenic malfunction. However, a small spleen may also originate from severe disease. We carried out a retrospective study to evaluate the association between splenic volume and severe pneumococcal sepsis or disease severity. Methods We reviewed the medical records of 23 patients with severe pneumococcal sepsis treated at our institution between January 2004 and September 2015 (pneumococcal group) and 61 patients with severe non‐pneumococcal bacteremia treated between April 2011 and September 2015 (control group). Splenic volume measured by abdominal computed tomography on admission was compared between the two groups. Correlations between Acute Physiology and Chronic Health Evaluation (APACHE) II scores and splenic volume on admission and the change in splenic volume from the non‐septic state to admission were also determined. Results Splenic volume on admission was significantly smaller (P = 0.001) and a small spleen was more frequent (P < 0.001) in the pneumococcal group. The APACHE II score was negatively correlated with splenic volume on admission (r = −0.46, P < 0.001) and the change in splenic volume (r = −0.44, P = 0.004). Pneumococcal infection (odds ratio 13.1, 95% confidence interval 2.6–65.7; P = 0.002) and APACHE II score (odds ratio 1.2, 95% confidence interval 1.1–1.3; P = 0.002) were independently associated with small spleen. Conclusion Splenic volume decreased with increasing severity of severe sepsis. A small spleen was also associated with severe pneumococcal infection.https://doi.org/10.1002/ams2.204Acute Physiology and Chronic Health Evaluation II scorecomputed tomographypneumococcal infectionsevere sepsisspleen
spellingShingle Yasutaka Koga
Motoki Fujita
Takashi Nakahara
Takeshi Yagi
Takashi Miyauchi
Kotaro Kaneda
Yoshikatsu Kawamura
Yasutaka Oda
Ryosuke Tsuruta
Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
Acute Medicine & Surgery
Acute Physiology and Chronic Health Evaluation II score
computed tomography
pneumococcal infection
severe sepsis
spleen
title Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
title_full Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
title_fullStr Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
title_full_unstemmed Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
title_short Splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
title_sort splenic volume in severe sepsis is associated with disease severity and pneumococcal infection
topic Acute Physiology and Chronic Health Evaluation II score
computed tomography
pneumococcal infection
severe sepsis
spleen
url https://doi.org/10.1002/ams2.204
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