Elective colon and rectal surgery differ in risk factors for wound infection: Results of prospective surveillance

Tsuyoshi Konishi, Toshiaki Watanabe, Junji Kishimoto, Hirokazu Nagawa

Research output: Contribution to journalArticle

188 Citations (Scopus)

Abstract

OBJECTIVE: The objective of this study was to clarify the incidence and risk factors for developing incisional surgical site infection (SSI) in both elective colon and rectal surgery. SUMMARY BACKGROUND DATA: SSI is a frequent complication after elective colorectal resection. The National Nosocomial Infection Surveillance system surveys all colorectal surgeries together, without differentiating the type of colorectal surgery performed. However, rectal surgery may have a higher risk for SSI, and identifying risk factors that are more specific to each procedure would be more predictive. METHODS: We conducted prospective SSI surveillance of all elective colorectal resections performed by a single surgeon in a single institution from November 2000 to July 2004. The data for colon and rectal surgeries were collected separately. The outcome of interest was incisional SSI. Univariate and multivariate analyses were performed to determine the predictive significance of variables in each type of surgery. RESULTS: A total of 556 colorectal resections, consisting of 339 colon and 217 rectal surgeries, were admitted to the program. The incisional SSI rates in colon and rectal surgeries were 9.4% and 18.0%, respectively (P = 0.0033). Risk factors for developing incisional SSI in colon surgery were ostomy closure (OR = 7.3) and lack of oral antibiotics (OR = 3.3), while in rectal surgery, risk factors were preoperative steroids (OR = 3.7), preoperative radiation (OR = 2.8), and ostomy creation (OR = 4.9). CONCLUSIONS: Colon and rectal surgeries differ with regard to incidence and risk factors for developing incisional SSI. SSI surveillance for such surgeries should be performed separately, as this should lead to more efficient identification of risk factors and a reduction in SSI.

Original languageEnglish
Pages (from-to)758-763
Number of pages6
JournalAnnals of Surgery
Volume244
Issue number5
DOIs
Publication statusPublished - Nov 1 2006
Externally publishedYes

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Surgical Wound Infection
Wound Infection
Colon
Ostomy
Colorectal Surgery
Incidence
Cross Infection
Multivariate Analysis
Steroids
Radiation
Anti-Bacterial Agents

All Science Journal Classification (ASJC) codes

  • Surgery

Cite this

Elective colon and rectal surgery differ in risk factors for wound infection : Results of prospective surveillance. / Konishi, Tsuyoshi; Watanabe, Toshiaki; Kishimoto, Junji; Nagawa, Hirokazu.

In: Annals of Surgery, Vol. 244, No. 5, 01.11.2006, p. 758-763.

Research output: Contribution to journalArticle

Konishi, Tsuyoshi ; Watanabe, Toshiaki ; Kishimoto, Junji ; Nagawa, Hirokazu. / Elective colon and rectal surgery differ in risk factors for wound infection : Results of prospective surveillance. In: Annals of Surgery. 2006 ; Vol. 244, No. 5. pp. 758-763.
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AB - OBJECTIVE: The objective of this study was to clarify the incidence and risk factors for developing incisional surgical site infection (SSI) in both elective colon and rectal surgery. SUMMARY BACKGROUND DATA: SSI is a frequent complication after elective colorectal resection. The National Nosocomial Infection Surveillance system surveys all colorectal surgeries together, without differentiating the type of colorectal surgery performed. However, rectal surgery may have a higher risk for SSI, and identifying risk factors that are more specific to each procedure would be more predictive. METHODS: We conducted prospective SSI surveillance of all elective colorectal resections performed by a single surgeon in a single institution from November 2000 to July 2004. The data for colon and rectal surgeries were collected separately. The outcome of interest was incisional SSI. Univariate and multivariate analyses were performed to determine the predictive significance of variables in each type of surgery. RESULTS: A total of 556 colorectal resections, consisting of 339 colon and 217 rectal surgeries, were admitted to the program. The incisional SSI rates in colon and rectal surgeries were 9.4% and 18.0%, respectively (P = 0.0033). Risk factors for developing incisional SSI in colon surgery were ostomy closure (OR = 7.3) and lack of oral antibiotics (OR = 3.3), while in rectal surgery, risk factors were preoperative steroids (OR = 3.7), preoperative radiation (OR = 2.8), and ostomy creation (OR = 4.9). CONCLUSIONS: Colon and rectal surgeries differ with regard to incidence and risk factors for developing incisional SSI. SSI surveillance for such surgeries should be performed separately, as this should lead to more efficient identification of risk factors and a reduction in SSI.

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