Riesgo de infección del sitio quirúrgico, según tiempo operatorio en cirugía maxilofacial mayor limpia contaminada: estudio observacional analítico

Abstract

Introduction

Despite advances in infection control and surgical techniques, surgical site infection (SSI) continues to be a cause of high morbidity and mortality.

Objectives

To determine if operating time increases the proportion of surgical site infections in clean-contaminated maxillofacial surgery.

Materials and method

This was an observational analytical study, including ASA I patients undergoing clean-contaminated maxillofacial surgery between 1997 and 2010 at the Clinical Hospital San Borja Arriarán (Santiago, Chile). The outcome variable was surgical site infection. Predictor variables were gender, age, operating time and SSI. Statistical analysis was performed using chi-squared test, Student t test, and simple logistic regression.

Results

A total of 522 patients met the inclusion criteria. The infection rate was 6.9%. Statistically significant differences were only observed in the operation time (P = .046) with an Odds ratio of 1.003 (95% CI = 1.000-1.006).

Conclusion

Significant differences in the proportion of SSI were found when operation time increased. However, this association is not clinically significant.