Factors Affecting Surgical Site Infection Rates in Hepatobiliary Surgery
Ozgen Isik1, Ekrem Kaya1, Pinar Sarkut1
1Uludag University School of Medicine, Department of Surgery, Gorukle, Bursa, Turkey.
Background:
There are several studies regarding risk factors affecting surgical site infections (SSIs); nevertheless, there are an insufficient number of studies focusing on risk factors for SSI in hepatobiliary (HPB) surgery. In this study, we aimed to determine risk factors related to HPB surgery.
Methods:
A total of 1,418 patients were included in this study, all of whom underwent hepatobiliary system surgery in a five-year period between January 2005 and December 2009. Demographic data, patient- and surgery-related risk factors, and laboratory parameters were analyzed retrospectively from a database maintained prospectively.
Results:
The overall incidence of SSI was 3.94% for HPB surgery. In multivariable analysis, blood transfusion (OR: 20.9), the presence of surgical drains (OR: 10.7), a pre-operative hospital stay of more than eight days (OR: 8.1), diabetes mellitus (OR: 6.2), chronic obstructive pulmonary disease (OR: 6.127), inappropriate antimicrobial prophylaxis (OR: 6), obesity (OR: 3.2), the presence of an external-internal biliary drainage catheter (OR: 2), and a direct bilirubin concentrations more than 15 mg/dL (OR: 1.4) were determined as independent risk factors related to SSI. E.coli and Enterococcus spp. were the pathogens isolated most commonly in SSIs.
Conclusions:
Most of the independent risk factors for hepatobiliary system surgery are similar to those for other general abdominal surgical procedures. The presence of an external-internal biliary drainage catheter and direct bilirubin concentrations higher than 15 mg/dL were found to be specific risk factors for HPB surgery.
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