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High-Risk Drug-Drug Interactions Between Clinical Practice Guidelines for Management of Chronic Conditions.

Tso GJ, Tu SW, Musen MA, Goldstein MK. High-Risk Drug-Drug Interactions Between Clinical Practice Guidelines for Management of Chronic Conditions. AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science. 2017 Jul 26; 2017:531-539.

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Clinicians and clinical decision-support systems often follow pharmacotherapy recommendations for patients based on clinical practice guidelines (CPGs). In multimorbid patients, these recommendations can potentially have clinically significant drug-drug interactions (DDIs). In this study, we describe and validate a method for programmatically detecting DDIs among CPG recommendations. The system extracts pharmacotherapy intervention recommendations from narrative CPGs, normalizes the terms, creates a mapping of drugs and drug classes, and then identifies occurrences of DDIs between CPG pairs. We used this system to analyze 75 CPGs written by authoring entities in the United States that discuss outpatient management of common chronic diseases. Using a reference list of high-risk DDIs, we identified 2198 of these DDIs in 638 CPG pairs (46 unique CPGs). Only 9 high-risk DDIs were discussed by both CPGs in a pairing. In 69 of the pairings, neither CPG had a pharmacologic reference or a warning of the possibility of a DDI.

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