Search Strategy Formulation- Intraoperative Monitoring of Cerebral Oximetry
Literature Search Strategy
The initial literature search for articles related to “Intraoperative Monitoring of Cerebral Oximetry” was conducted in two major databases, PubMed Central and ProQuest Central, using the specified keywords and Boolean operators. The literature search involved the following search terms and Boolean functions; “monitoring, intraoperative” OR “monitoring” AND “intraoperative” OR “intraoperative monitoring” OR “intraoperative” AND “monitoring” AND “cerebrum” OR “cerebrum” OR “cerebral” OR “brain” OR “brain” AND “oximetry” OR “oximetry.” Filtering was applied across all databases using various filtering tools, including filtering by date, article type, and availability of full text. Regarding the publication date, filtering was applied to ensure all articles returned in each search were published between 2017 and 2024 to ensure the most recent and relevant articles would be selected. Additionally, priority for article screening was paid to articles presenting level 1-2 evidence. In ProQuest Central, filtering also included articles only available in full text, while in PubMed Central, further filtering focused on open-access articles.
Process of Study Selection
The screening of the studies was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. The study screening process applied various criteria to include and exclude papers. The search based on the above search strategy returned a total of 2947 articles: 2046 from PubMed Central and 901 from ProQuest Central. The screening included a review of the article’s title, the abstract, as well as its research methodology. The criteria for exclusion included articles that were not directly related to intraoperative monitoring of cerebral oximetry, articles that were not scholarly journals to ensure the quality remained high, articles that did not provide a detailed discussion of the results of the research, including a detailed discussion on intraoperative monitoring and cerebral oximetry, and articles that did not provide full texts. The inclusion criteria included articles with titles directly related to the intraoperative monitoring of cerebral oximetry published between 2017 and 2023 and that provided open access to the full text. Only articles that were considered to provide level 1-2 evidence, had been published in scholarly journals, and provided a clear and detailed presentation of the research methods were included. Further filtering was applied to include articles published from March 2019 to improve the currency. After the application of the exclusion and inclusion criteria, the final selection of the included articles was based on whether the articles met all inclusion criteria based on a detailed screening of abstracts and analysis of the full text of the prospective papers. A total of 22 papers were identified for the systematic review.
Three Examples of Excluded Studies and Rationale
An article excluded from the review includes Lei et al.’s article published in 2017.1 Although the study was a double-blinded, prospective, randomized, controlled trial, which meant it met most of the inclusion criteria, including direct relation to the topic of intraoperative monitoring of cerebral oximetry, and met the evidence 1 and 2 level criteria, it failed to meet the reviewed currency criteria in which articles published in the last five years were further considered. The second excluded article was published in 2020 by Mamontov et al.2 The article was excluded as it focused on animal models and included no human subjects. The third excluded article was Abdelhameed et al., published in 2021.3 It was excluded as it did not meet major inclusion criteria such as level of evidence criteria. It was a single-center study and did not directly relate to or focus on the topic of intraoperative monitoring of cerebral oximetry.
PRISMA Diagram Flow Chart of Study Inclusion and Exclusion
References
Lei L, Katznelson R, Fedorko L, et al. Cerebral oximetry and postoperative delirium after cardiac surgery: A randomized, controlled trial. Anesthesia. 2017;72(12):1456-1466. doi:10.1111/anae.14056Mamontov OV, Sokolov AY, Volynsky MA, et al. Animal model of assessing cerebrovascular functional reserve by imaging photoplethysmography. Scientific Reports. 2020;10(1). doi:10.1038/s41598-020-75824-wAbdelhameed E, Abdelghany M, Abdelkhalek H, Elatrozy H. Awake surgery for lesions near eloquent brain under scalp block and clinical monitoring: experience of single center with limited resources. The Egyptian Journal of Neurology, Psychiatry and Neurosurgery. 2021;57(1). doi:10.1186/s41983-021-00333-0
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Search Strategy Formulation- Intraoperative Monitoring of Cerebral Oximetry
Check the instructions and watch the videos. Attached in files you’ll see the book Polit and Beck to read Chapter 5, pp87-96
You can go directly to the library website (https://library.fiu.edu/az.php), on the first video you’ll see the steps. You will search for the topic ”Intraoperative monitoring of cerebral oximetry” The first video shows step-by-step the criteria.
Instructions are listed from 1 to 7, with some resources and examples. You will also see the Rubric at the end.
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