Obesity, surgical site infection, and outcome following renal transplantation.


Journal Article

OBJECTIVE: We sought to understand whether obesity imparts detriment in outcome beyond risk of developing surgical site infection (SSI). SUMMARY BACKGROUND DATA: Obesity is a risk factor for SSI following renal transplantation, and has been implicated in inferior patient and graft survival postoperatively. METHODS: We conducted a retrospective review of all adult kidney-only transplants performed at the University of Michigan between September 2003 and April 2008. The primary exposure variable was recipient body mass index (BMI). Cox multivariable regression and Kaplan-Meier analysis were used to identify factors associated with SSI, graft loss, and patient death. RESULTS: In total, 869 recipients were studied, including 351 with BMI >30. Multivariate analysis revealed recipient age, delayed graft function, and BMI >30 to be independent risk factors for SSI. SSI was a significant risk factor for graft loss (HR: 2.194, 95% CI: 1.357-3.546) and approached significance as a risk factor for patient death (HR: 1.689, 95% CI: 0.941-3.028). Obesity had no independent effect on graft or patient outcome. CONCLUSIONS: SSI is associated with detriment to patient and graft survival following renal transplantation. The prevalence of SSI is higher among obese recipients, but those who avoid SSI have comparable outcomes to nonobese recipients. These findings redemonstrate the importance of SSI prevention following renal transplantation.

Full Text

Duke Authors

Cited Authors

  • Lynch, RJ; Ranney, DN; Shijie, C; Lee, DS; Samala, N; Englesbe, MJ

Published Date

  • December 2009

Published In

Volume / Issue

  • 250 / 6

Start / End Page

  • 1014 - 1020

PubMed ID

  • 19779327

Pubmed Central ID

  • 19779327

Electronic International Standard Serial Number (EISSN)

  • 1528-1140

International Standard Serial Number (ISSN)

  • 0003-4932

Digital Object Identifier (DOI)

  • 10.1097/sla.0b013e3181b4ee9a


  • eng