Incidence and Risk Factors for Surgical Site Infection after Gastric Surgery: A Multicenter Prospective Cohort Study
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Background: Surgical site infection (SSI) is a potentially morbid and costly complication of surgery. While gastrointestinal surgery isrelatively common in Korea, few studies have evaluated SSI in the context of gastric surgery. Thus, we performed a prospective cohortstudy to determine the incidence and risk factors of SSI in Korean patients undergoing gastric surgery. Materials and Methods: A prospective cohort study of 2,091 patients who underwent gastric surgery was performed in 10 hospitalswith more than 500 beds (nine tertiary hospitals and one secondary hospital). Patients were recruited from an SSI surveillance programbetween June 1, 2010, and August 31, 2011 and followed up for 1 month after the operation. The criteria used to define SSIand a patient’s risk index category were established according to the Centers for Disease Control and Prevention and the NationalNosocomial Infection Surveillance System. We collected demographic data and potential perioperative risk factors including typeand duration of the operation and physical status score in patients who developed SSIs based on a previous study protocol. Results: A total of 71 SSIs (3.3%) were identified, with hospital rates varying from 0.0 - 15.7%. The results of multivariate analysesindicated that prolonged operation time (P = 0.002), use of a razor for preoperative hair removal (P = 0.010), and absence of laminarflow in the operating room (P = 0.024) were independent risk factors for SSI after gastric surgery. Conclusions: Longer operation times, razor use, and absence of laminar flow in operating rooms were independently associatedwith significant increased SSI risk after gastric surgery.
Abstract
Background: Surgical site infection (SSI) is a potentially morbid and costly complication of surgery. While gastrointestinal surgery isrelatively common in Korea, few studies have evaluated SSI in the context of gastric surgery. Thus, we performed a prospective cohortstudy to determine the incidence and risk factors of SSI in Korean patients undergoing gastric surgery. Materials and Methods: A prospective cohort study of 2,091 patients who underwent gastric surgery was performed in 10 hospitalswith more than 500 beds (nine tertiary hospitals and one secondary hospital). Patients were recruited from an SSI surveillance programbetween June 1, 2010, and August 31, 2011 and followed up for 1 month after the operation. The criteria used to define SSIand a patient’s risk index category were established according to the Centers for Disease Control and Prevention and the NationalNosocomial Infection Surveillance System. We collected demographic data and potential perioperative risk factors including typeand duration of the operation and physical status score in patients who developed SSIs based on a previous study protocol. Results: A total of 71 SSIs (3.3%) were identified, with hospital rates varying from 0.0 - 15.7%. The results of multivariate analysesindicated that prolonged operation time (P = 0.002), use of a razor for preoperative hair removal (P = 0.010), and absence of laminarflow in the operating room (P = 0.024) were independent risk factors for SSI after gastric surgery. Conclusions: Longer operation times, razor use, and absence of laminar flow in operating rooms were independently associatedwith significant increased SSI risk after gastric surgery.
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