An algorithm is an illustration of a series of medical decisions that address certain patient specific conditions outlining appropriate responses intended to lead to an outcome.^{2, 3} The goals of an algorithm are to identify diagnostic alternatives, treatment options, and outcomes by weighing decision benefits against risks and costs. A primary benefit of a well – developed algorithm is that it focuses the reader on the critical decision points in any clinical scenario and specifically lists the input data that leads to a decision. Algorithms can be applied to specific problems, processes, or diseases. They allow for evolution of a disease related topic with new information or clinical conditions that may affect decision making later in the time course of a situation. They can convey the scope of a clinical condition from presentation, through testing and assessment, followed by a clinical judgment and action leading to an eventual outcome. Annotations are added to appropriate points on the algorithm and are necessary for all decision nodes. The purpose of the annotation is to explain all critical factors affecting decisions in as concise a manner as possible. The primary advantage of an algorithm is that it can summarize an evidence based guideline into an easily and quickly available practice protocol for use in the clinical care setting. The Western Trauma Association has played a significant role in guiding the practice of trauma surgery based on sound scientific evidence through publication of its multi-center trials.^4-8 High quality practice algorithms will further serve the trauma community by an efficient review of current recommendations in trauma decision making.

The WTA Critical Decisions in Trauma ad hoc committee oversees the development of these algorithms. After a thorough literature review, which includes review of currently published guidelines, a draft document is distributed to the committee. Critical review by the committee members is used to develop a second draft. The algorithm is reviewed and revised at a meeting of the committee. The algorithms are presented to the WTA membership at the Annual Meeting. Membership discussion results in further refinement before final submission to the Journal of Trauma and publication on the website.

We anticipate that implementation of the algorithms will require consideration of institution specific capability. An additional benefit of algorithm development is to reveal areas of uncertainty thereby defining the “grey areas.”¹ These areas are perfect questions to be developed into clinical research projects. Algorithms will be forwarded to the WTA Multi-institutional Trials Committee for consideration of study development to test application of the algorithm. Further, a study group may be formed to perform decision analysis if appropriate for the given question.⁹ Each algorithm will be reviewed on a cycle of every three years by the steering committee. If substantial revision is necessary the algorithm may be directed back to the expert panel for revision. These algorithms exist in a series to follow and we look forward to the trauma community testing the algorithms and further refining care by eliminating the “grey areas” in decision making.