Anesthesiology
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Randomized Controlled Trial Multicenter Study Comparative Study
Dexamethasone for Cardiac Surgery: A Practice Preference-Randomized Consent Comparative Effectiveness Trial.
High-dose corticosteroids have been used to attenuate the inflammatory response to cardiac surgery and cardiopulmonary bypass, but patient outcome benefits remain unclear. The primary aim was to determine whether using dexamethasone was superior to not using dexamethasone to increase the number of home days in the first 30 days after cardiac surgery. The secondary aim was to evaluate efficiency, value, and impact of the novel trial design. ⋯ Among patients undergoing cardiac surgery, high-dose dexamethasone decreased intensive care unit stay but did not increase the number of home days after surgery.
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Most of science involves making observations, forming hypotheses, and testing those hypotheses, to form valid conclusions. However, a distinct, longstanding, and very productive scientific approach does not follow this paradigm; rather, it begins with a screen through a random collection of drugs or genetic variations for a particular effect or phenotype. ⋯ This review explains the rational for forward screening approaches and uses examples of screens for mutants with altered anesthetic sensitivities and for novel anesthetics to illustrate the methods and impact of the approach. Forward screening approaches are becoming even more powerful with advances in bioinformatics aided by artificial intelligence.