Factors associated to surgical site infection after hip hemiarthroplasty
Keywords:
risk factor, surgical site infection, hip hemiarthroplasty.Abstract
Introduction: Hemiarthroplasty is used for geriatric hip fractures associated with morbidity and mortality. Surgical site infection is an important complication, which causes clinical and economic problems as it is one of the largest groups of in-hospital infections.
Objective: To identify the risk factors and a predictive model for surgical site infection in patients undergoing hip hemiarthroplasty.
Methods: A cross-sectional analytical study was carried out at Hospital Víctor Lazarte Echegaray, in Trujillo. Geriatric patients undergoing hemiarthroplasty for hip fracture from 2009 to 2019 were included. Of 318 medical records, 243 met the inclusion criteria. Bivariate and multivariate analysis was performed to identify factors related to surgical site infection. A predictive model using the ROC curve was also used.
Results: Twenty-two surgical site infections were identified, with a prevalence of 9.1 %. In bivariate analysis, infection was significantly associated with age, educational level, arterial hypertension, chronic kidney disease, malnutrition, drain use, urinary catheter, blood transfusion, hospital stay and the National Nosocomial Infection Surveillance System (NNIS ≥ 2) index. Logistic regression identified drain use, blood transfusion, hospital stay and the NNIS index over or equal to 2 as independent and significant factors. The predictive model presented an area under the curve of 0.955.
Conclusions: Surgical site infection after hip hemiarthroplasty is significantly associated with drain use, blood transfusion, hospital stay and a NNIS index ≥ 2. These variables have a predictive power of 95.5 %.
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References
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