Mortality due to hospital-acquired infection after cardiac surgery - Université de Rennes
Article Dans Une Revue Journal of Thoracic and Cardiovascular Surgery Année : 2022

Mortality due to hospital-acquired infection after cardiac surgery

Résumé

Purpose: Hospital-acquired infections have been associated with significant morbidity and mortality in critically ill surgical patients. However, little is known about mortality due to hospital-acquired infections in cardiac surgery.Methods: We conducted a retrospective analysis of prospectively collected data from the cardiac surgery unit of a university hospital. All patients who underwent cardiac surgery over a 7-year period were included. Patients with hospital-acquired infections were matched 1:1 with patients with nonhospital-acquired infections based on risk factors for hospital-acquired infections and death after cardiac surgery using propensity score matching. We performed a competitive risk analysis to study the mortality fraction due to hospital-acquired infections.Results: Of 8853 patients who underwent cardiac surgery, 370 (4.2%) developed 500 postoperative infections (incidence density rate 4.2 hospital-acquired infections per 1000 patient-days). Crude hospital mortality was significantly higher in patients with hospital-acquired infections than in matched patients who did not develop hospital-acquired infections, 15.4% and 5.7%, respectively (P < .001). The in-hospital mortality fraction due to hospital-acquired infections in our cohort was 17.1% (12.3%-22.8%). Pseudomonas aeruginosa infection (hazard ratio, 2.09; 95% confidence interval, 1.23-3.49; P = .005), bloodstream infection (hazard ratio, 2.08; 95% confidence interval, 1.19-3.63; P = .010), and pneumonia (hazard ratio, 1.68; 95% confidence interval, 1.02-2.77; P = .04) were each independently associated with increased hospital mortality.Conclusions: Although hospital-acquired infections are relatively uncommon after cardiac surgery (4.2%), these infections have a major impact on postoperative mortality (attributable mortality fraction, 17.1%).
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hal-02959257 , version 1 (19-10-2020)

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Nicolas Massart, Alexandre Mansour, James T Ross, Caroline Piau, Jean-Philippe Verhoye, et al.. Mortality due to hospital-acquired infection after cardiac surgery. Journal of Thoracic and Cardiovascular Surgery, 2022, 163 (6), pp.2131-2140.e3. ⟨10.1016/j.jtcvs.2020.08.094⟩. ⟨hal-02959257⟩
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