Faculty Collaboration Database

Previous Methicillin-Resistant Staphylococcus aureus Infection Independent of Body Site Increases Odds of Surgical Site Infection after Ventral Hernia Repair. J Am Coll Surg 2015 Aug;221(2):470-7

Date

07/25/2015

Pubmed ID

26206645

DOI

10.1016/j.jamcollsurg.2015.04.023

Scopus ID

2-s2.0-84937710598 (requires institutional sign-in at Scopus site)   10 Citations

Abstract

BACKGROUND: Methicillin-resistant Staphylococcus aureus infections can be difficult to manage in ventral hernia repair (VHR). We aimed to determine whether a history of preoperative MRSA infection, regardless of site, confers increased odds of 30-day surgical site infection (SSI) after VHR.

STUDY DESIGN: A retrospective cohort study of patients undergoing VHR with class I to III wounds between 2005 and 2012 was performed using Vanderbilt University Medical Center's Perioperative Data Warehouse. Preoperative MRSA status, site of infection, and 30-day SSI were determined. Univariate and multivariate analyses adjusting for confounding factors were performed to determine whether a history of MRSA infection was independently associated with SSIs.

RESULTS: A total of 768 VHR patients met inclusion criteria, of which 46% were women. There were 54 (7%) preoperative MRSA infections (MRSA positive); 15 (28%) soft tissue, 9 (17%) bloodstream, 4 (7%) pulmonary, 3 (6%) urinary, and 5 (9%) other. Overall SSI rate was 10% (n = 80), SSI rate in the MRSA-positive group was 33% (n = 18), compared with 9% (n = 62) in controls (p < 0.001). Multivariate analysis demonstrated that a history of MRSA infection significantly increased odds of 30-day SSI after VHR by 2.3 times (95% CI, 1.1-4.8; p = 0.035). Other factors associated with postoperative SSI were performance of myofascial release, increasing BMI, length of operation, open repair, and clean-contaminated wound classification.

CONCLUSIONS: A history of site-independent MRSA infection confers significantly increased odds of 30-day SSI after VHR. Additional investigation is needed to determine perioperative treatment regimens that might decrease odds of SSI in VHR, and optimal prosthetic types and techniques for this population.

Author List

Ousley J, Baucom RB, Stewart MK, Phillips SE, Holzman MD, Ehrenfeld JM, Sharp KW, Nealon WH, Poulose BK

Author

Jesse Ehrenfeld MD, MPH Sr Associate Dean, Director, Professor in the Advancing a Healthier Wisconsin Endowment department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Cohort Studies
Female
Hernia, Ventral
Herniorrhaphy
Humans
Logistic Models
Male
Methicillin-Resistant Staphylococcus aureus
Middle Aged
Multivariate Analysis
Preoperative Period
Retrospective Studies
Risk Factors
Staphylococcal Infections
Surgical Wound Infection