Search Strategy for Best Evidence
Formulating a search strategy is critical in the identification of the most appropriate evidence to answer the PICOT question for CRMC concerning critically ill patients admitted to the ICU and the effect of daily CHG baths on HAIs. The key ideas of the proposed PICOT question are a critically ill patient in the ICU, the intervention of daily CHG bath, comparison with standard soap and water bath, the outcome of HAI reduction, and patient safety (Peixoto et al., 2024).
PubMed, CINAHL and the Cochrane Library were chosen for the search because they offer a vast collection of biomedical and nursing literature (Enticott et al., 2021). This systematic approach is designed to obtain the best possible evidence that would help to introduce CHG bathing in the ICU. The search summary is illustrated in the Appendix as a PRISMA chart, which details the identification, screening, inclusion, and exclusion of studies throughout the search process.
Databases and Keywords
Choosing the right databases and the right keywords is crucial in a successful search to obtain the best evidence about the feasibility of daily CHG baths in the ICU. Databases like PubMed database, CINAHL, and Cochrane Library were used (Enticott et al., 2021). Some strong key terms like Chlorhexidine gluconate, CHG bathing, ICU-acquired infections, hospital-acquired infections, critical care, and patient safety outcomes were used. Applying Boolean operators such as AND, OR, and NOT enhanced the search process and identified appropriate research to inform improvements to quality (Enticott et al., 2021).
Based on the PICO(T) question and the established search strategy, the inclusion criteria for the retained articles were as follows. Studies must meet the following criteria: the studies must be randomized controlled trials, systematic reviews, or meta-analyses issued in English; they must examine the implementation of daily CHG bathing compared to standard water and soap baths; they must report the incidence of HAIs as an outcome measure; and they are restricted to ICU or critical care units, and published in or after 2020 (Wanyama et al., 2021).
On the other hand, studies that were conducted outside hospitals, studies that did not report HAIs as an outcome of the intervention, studies written in other than English language, and any studies done and published before the year 2020 were excluded (Wanyama et al., 2021). Applying these criteria, 15 articles were selected for further analysis. All these articles provided strong evidence for the use of CHG bathing in decreasing HAIs in critical patients in the ICU environment.
References
Blot, S., Ruppé, E., Harbarth, S., Asehnoune, K., Poulakou, G., Luyt, C.-E., Rello, J., Klompas, M., Depuydt, P., Eckmann, C., Martin-Loeches, I., Povoa, P., Bouadma, L., Timsit, J.-F., & Zahar, J.-R. (2022). Healthcare-associated infections in adult intensive care unit patients: Changes in epidemiology, diagnosis, prevention and contributions of new technologies. Intensive and Critical Care Nursing, 70(103227). https://doi.org/10.1016/j.iccn.2022.103227
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