Abstract:
STUDY DESIGN:Multicenter retrospective study. OBJECTIVE:The aim of this study was to identify specific risk factors for increased length of stay (LOS) in the management of acute surgical site infection (SSI) following spinal surgery. SUMMARY OF BACKGROUND DATA:Postoperative SSI is a serious complication of spinal surgery and is known to be associated with increased LOS and additional cost. Although many risk factors contribute to the development of SSI following spinal surgery, little is known about risk factors associated with the treatment of SSI that contribute to increased LOS. METHODS:Patients at two institutions experiencing deep SSI following spinal surgery between January 2009 and December 2016 were identified. The patients were divided into two groups depending upon the median LOS attributable to SSI. The effects of patient characteristics, comorbidities, disease history, and invasiveness of the elective surgery on the risk of increased LOS were determined using univariate analyses and multivariate logistic regression. RESULTS:Of the 1656 spinal surgery cases, 40 (2.4%) experienced deep SSI. The median LOS was 67 days. Multivariate logistic regression analysis revealed that hypoalbuminemia during hospitalization was associated with increased LOS (odds ratio 0.042, confidence interval 0.005-0.342; P = 0.003). We determined the appropriate diagnostic cutoff of hypoalbuminemia during hospitalization using receiver-operating characteristic curves. A serum albumin level <3.1 g/dL (sensitivity, 86.4%; specificity, 75.0%; area under the curve, 0.84) was indicative of a longer hospital stay. CONCLUSION:Low serum albumin level during hospitalization was an independent risk factor for increased LOS in the treatment of SSI following spinal surgery. When the serum albumin level is <3.1 g/dL in patients with SSI, we should consider interventions aimed at correcting this hypoalbuminemia. LEVEL OF EVIDENCE:4.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Yamamoto Y,Shigematsu H,Iwata E,Nakajima H,Tanaka M,Okuda A,Kawasaki S,Suga Y,Masuda K,Tanaka Ydoi
10.1097/BRS.0000000000003684subject
Has Abstractpub_date
2020-12-01 00:00:00pages
E1564-E1571issue
23eissn
0362-2436issn
1528-1159pii
00007632-202012010-00007journal_volume
45pub_type
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