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Do Anesthesiologists Know What They Are Doing? Mining a Surgical Time-Series Database to Correlate Expert Assessment with Outcomes RISA B. MYERS, Rice University JOHN C. FRENZEL MD and JOSEPH R. RUIZ MD, University of Texas MD Anderson Cancer Center CHRISTOPHER M. JERMAINE, Rice University Anesthesiologists are taught to carefully manage patient vital signs during surgery. Unfortunately, there is little empirical evidence that vital sign management, as currently practiced, is correlated with patient outcomes. We seek to validate or repudiate current clinical practice and determine whether or not clinician evaluation of surgical vital signs correlate with outcomes. Using a database of over 90,000 cases, we attempt to determine whether those cases that anesthesiologists would subjectively decide are "low quality" are more likely to result in negative outcomes. The problem reduces to one of multi-dimensional time-series classification. Our approach is to have a set of expert anesthesiologists independently label a small number of training cases, from which we build classifiers and label all 90,000 cases. We then use the labeling to search for correlation with outcomes and compare the prevalence of important 30-day outcomes between providers. To mimic the providers' quality labels, we consider several standard classification methods, such as
ACM Transactions on Knowledge Discovery from Data (TKDD) – Association for Computing Machinery
Published: Feb 9, 2016
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