Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery
Study DesignCase control study.PurposeTo identify the most significant laboratory marker for early detection of surgical site infection (SSI) using multiple logistic regression analysis.Overview of LiteratureSSI is a serious complication of spinal instrumentation surgery. Early diagnosis and treatme...
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doaj-f4a75ae72e6f422591fa47d8aa76ee622020-11-25T02:31:02ZengKorean Spine SocietyAsian Spine Journal1976-19021976-78462016-12-011061042104610.4184/asj.2016.10.6.104227Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation SurgeryEiichiro Iwata0Hideki Shigematsu1Akinori Okuda2Yasuhiko Morimoto3Keisuke Masuda4Hiroshi Nakajima5Munehisa Koizumi6Yasuhito Tanaka7Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Department of Orthopedic Surgery, Otemae Hospital, Osaka, Japan.Department of Spine Surgery, Nara Prefecture General Medical Center, Nara, Japan.Department of Orthopedic Surgery, Nara Medical University, Nara, Japan.Study DesignCase control study.PurposeTo identify the most significant laboratory marker for early detection of surgical site infection (SSI) using multiple logistic regression analysis.Overview of LiteratureSSI is a serious complication of spinal instrumentation surgery. Early diagnosis and treatment are crucial.MethodsWe retrospectively reviewed the laboratory data of patients who underwent posterior lumbar instrumentation surgery for degenerative spinal disease from January 2003 to December 2014. Six laboratory markers for early SSI detection were considered: renewed elevation of the white blood cell count, higher at 7 than 4 days postoperatively; renewed elevation of the C-reactive protein (CRP) level, higher at 7 than 4 days postoperatively; CRP level of >10 mg/dL at 4 days postoperatively; neutrophil percentage of >75% at 4 days postoperatively; lymphocyte percentage of <10% at 4 days postoperatively; and lymphocyte count of <1,000/µL at 4 days postoperatively.ResultsNinety patients were enrolled; five developed deep SSI. Multivariate regression analysis showed that a lymphocyte count of <1,000/µL at 4 days postoperatively was the sole significant independent laboratory marker for early detection of SSI (p=0.037; odds ratio, 11.9; 95% confidence interval, 1.2–122.7).ConclusionsA lymphocyte count of <1,000/µL at 4 days postoperatively is the most significant laboratory marker for early detection of SSI.http://www.asianspinejournal.org/upload/pdf/asj-10-1042.pdfSurgical wound infectionInstrumentationBiomarkersLymphopeniaLeukocytes |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Eiichiro Iwata Hideki Shigematsu Akinori Okuda Yasuhiko Morimoto Keisuke Masuda Hiroshi Nakajima Munehisa Koizumi Yasuhito Tanaka |
spellingShingle |
Eiichiro Iwata Hideki Shigematsu Akinori Okuda Yasuhiko Morimoto Keisuke Masuda Hiroshi Nakajima Munehisa Koizumi Yasuhito Tanaka Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery Asian Spine Journal Surgical wound infection Instrumentation Biomarkers Lymphopenia Leukocytes |
author_facet |
Eiichiro Iwata Hideki Shigematsu Akinori Okuda Yasuhiko Morimoto Keisuke Masuda Hiroshi Nakajima Munehisa Koizumi Yasuhito Tanaka |
author_sort |
Eiichiro Iwata |
title |
Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery |
title_short |
Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery |
title_full |
Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery |
title_fullStr |
Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery |
title_full_unstemmed |
Lymphopenia at 4 Days Postoperatively Is the Most Significant Laboratory Marker for Early Detection of Surgical Site Infection Following Posterior Lumbar Instrumentation Surgery |
title_sort |
lymphopenia at 4 days postoperatively is the most significant laboratory marker for early detection of surgical site infection following posterior lumbar instrumentation surgery |
publisher |
Korean Spine Society |
series |
Asian Spine Journal |
issn |
1976-1902 1976-7846 |
publishDate |
2016-12-01 |
description |
Study DesignCase control study.PurposeTo identify the most significant laboratory marker for early detection of surgical site infection (SSI) using multiple logistic regression analysis.Overview of LiteratureSSI is a serious complication of spinal instrumentation surgery. Early diagnosis and treatment are crucial.MethodsWe retrospectively reviewed the laboratory data of patients who underwent posterior lumbar instrumentation surgery for degenerative spinal disease from January 2003 to December 2014. Six laboratory markers for early SSI detection were considered: renewed elevation of the white blood cell count, higher at 7 than 4 days postoperatively; renewed elevation of the C-reactive protein (CRP) level, higher at 7 than 4 days postoperatively; CRP level of >10 mg/dL at 4 days postoperatively; neutrophil percentage of >75% at 4 days postoperatively; lymphocyte percentage of <10% at 4 days postoperatively; and lymphocyte count of <1,000/µL at 4 days postoperatively.ResultsNinety patients were enrolled; five developed deep SSI. Multivariate regression analysis showed that a lymphocyte count of <1,000/µL at 4 days postoperatively was the sole significant independent laboratory marker for early detection of SSI (p=0.037; odds ratio, 11.9; 95% confidence interval, 1.2–122.7).ConclusionsA lymphocyte count of <1,000/µL at 4 days postoperatively is the most significant laboratory marker for early detection of SSI. |
topic |
Surgical wound infection Instrumentation Biomarkers Lymphopenia Leukocytes |
url |
http://www.asianspinejournal.org/upload/pdf/asj-10-1042.pdf |
work_keys_str_mv |
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