4.5 Article

Surgical Site Infections in patients undergoing major oncological surgery during the COVID-19 paNdemic (SCION): A propensity-matched analysis

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JOURNAL OF SURGICAL ONCOLOGY
卷 125, 期 3, 页码 327-335

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WILEY
DOI: 10.1002/jso.26738

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COVID-19 pandemic; oncologic surgery; propensity score matching; surgical site infection

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The study found that increased compliance with hand hygiene, universal mask usage, and social distancing during the COVID-19 pandemic led to a decrease in surgical site infections (SSIs) in major oncologic resections. Factors such as longer surgery duration, prior chemoradiation, and clean contaminated wounds were significantly associated with SSI.
Background and Objectives There are reports of outcomes of elective major cancer surgery during the COVID-19 pandemic. We evaluated if reinforcement of hand hygiene, universal masking, and distancing as a part of pandemic precautions led to a decrease in the incidence of surgical site infections (SSIs) in major oncologic resections. Methods Propensity score matching using the nearest neighbor algorithm was performed on 3123 patients over seven covariates (age, comorbidities, surgery duration, prior treatment, disease stage, reconstruction, and surgical wound type) yielding 2614 matched (pre-COVID 1612 and COVID 1002) patients. Conditional logistic regression was used to identify if SSI incidence was lower amongst patients operated during the pandemic. Results There was a 4.2% (p = 0.006) decrease in SSI in patients operated during the pandemic. On multivariate regression, surgery during the COVID-19 period (odds ratio [OR] = 0.77; 95% confidence interval [CI] = 0.61-0.98; p = 0.03), prior chemoradiation (OR = 2.46; CI = 1.45-4.17; p < 0.001), duration of surgery >4 h (OR = 2.17; 95%CI = 1.55-3.05; p < 0.001) and clean contaminated wounds (OR = 2.50; 95% CI = 1.09-2.18; p = 0.012) were significantly associated with SSI. Conclusion Increased compliance with hand hygiene, near-universal mask usage, and social distancing during the COVID-19 pandemic possibly led to a 23% decreased odds of SSI in major oncologic resections. Extending these low-cost interventions in the post-pandemic era can decrease morbidity associated with SSI in cancer surgery.

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