Does the Centers for Disease Control’s NNIS System Risk Index Stratify Patients Undergoing Cardiothoracic Operations by Their Risk of Surgical-Site Infection?

Abstract

The risk of SSI after cardiothoracic operations increases as the NNIS risk index score increases. However, this index only dichotomized the patient population on the basis of the procedure duration. More research is needed to develop a risk index that adequately stratifies the risk of SSI after cardiothoracic operations.