• World Neurosurg · Dec 2023

    Utility of Routine Pre-Operative Urinalysis in the Prevention of Surgical Site Infections.

    • Aden P Haskell-Mendoza, Senthil Radhakrishnan, Ana Lisa Nardin, Kristina Eilbacher, Lexie Zidanyue Yang, Joshua D Jackson, Hui-Jie Lee, John H Sampson, and Peter E Fecci.
    • Duke University School of Medicine, Durham, North Carolina, USA.
    • World Neurosurg. 2023 Dec 1; 180: e449e459e449-e459.

    ObjectivePreoperative assessment is important for neurosurgical risk stratification, but the level of evidence for individual screening tests is low. In preoperative urinalysis (UA), testing may significantly increase costs and lead to inappropriate antibiotic treatment. We prospectively evaluated whether eliminating preoperative UA was noninferior to routine preoperative UA as measured by 30-day readmission for surgical site infection in adult elective neurosurgical procedures.MethodsA single-institution prospective, pragmatic study of patients receiving elective neurosurgical procedures from 2018 to 2020 was conducted. Patients were allocated based on same-day versus preoperative admission status. Rates of preoperative UA and subsequent wound infection were measured along with detailed demographic, surgical, and laboratory data.ResultsThe study included 879 patients. The most common types of surgery were cranial (54.7%), spine (17.4%), and stereotactic/functional (19.5%). No preoperative UA was performed in 315 patients, while 564 underwent UA. Of tested patients, 103 (18.3%) met criteria for suspected urinary tract infection, and 69 (12.2%) received subsequent antibiotic treatment. There were 14 patients readmitted within 30 days (7 without UA [2.2%] vs. 7 with UA [1.2%]) for subsequent wound infection with a risk difference of 0.98% (95% confidence interval -0.89% to 2.85%). The upper limit of the confidence interval exceeded the preselected noninferiority margin of 1%.ConclusionsIn this prospective study of preoperative UA for elective neurosurgical procedures using a pragmatic, real-world design, risk of readmission due to surgical site infection was very low across the study cohort, suggesting a limited role of preoperative UA for elective neurosurgical procedures.Copyright © 2023 Elsevier Inc. All rights reserved.

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