ArticleCureus2026
Timing of Cefazolin Prophylaxis in Clean Surgery: Prophylaxis Administered After Incision Results in a Higher Surgical Site Infection Rate.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionThe timing of antibacterial prophylaxis in the hour before incision remains undecided because of inadequate clinical outcome data. The purpose of this study was to determine if the timing of cefazolin prophylaxis in the hour before surgery influences the surgical site infection (SSI) rate in clean procedures.
methodsWe conducted a prospective SSI surveillance in 16 Southern Cross Healthcare hospitals in New Zealand, from 2005 through 2023. The timing of cefazolin antibacterial prophylaxis was recorded, in minutes, with respect to incision time. Patients were followed for 30 days after surgery. Standard definitions for SSIs were used. The SSI rate with respect to the timing of antibacterial prophylaxis was analysed in 10-minute periods. Uni- and multivariable analyses were performed.
resultsA total of 52,368 procedures had the timing of prophylaxis recorded in minutes against incision time. There were 694 (1.3%) SSIs. For all procedures, the lowest SSI rate was for prophylaxis given 21-30 minutes before surgery; however, after multivariate analysis, timing within the hour before incision was not significant. Prophylaxis given after incision had a higher SSI rate, with an odds ratio of 1.8 (95% CI: 1.2-2.8, P = 0.01).
conclusionThe SSI rates for prophylaxis increased when cefazolin prophylaxis was given after incision, but no optimal time before incision was observed. The results may not be applicable to non-clean procedures or non-cefazolin prophylaxis.
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