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Development and Validation of a Deep Neural Network Model for Prediction of Postoperative In-hospital Mortality
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Background: It is unclear whether recognition of epidural catheter failures is delayed with combined spinal epidural technique (CSE) compared to traditional epidural technique (EPID) when used for labor analgesia. The authors hypothesized that recognition of failed catheters is not delayed by CSE.Methods: Anesthetic, obstetric, and quality assurance records from 2,395 labor neuraxial procedures (1,440 CSE and 955EPID) performed at Forsyth Medical Center (Winston-Salem, North Carolina) between June 30 and December 31, 2012, were retrospectively analyzed. The primary outcome was catheter survival (failure-free) time during labor analgesia. A proportional hazards model with the counting method was used to assess relationships between the techniques and survival (failurefree) time of catheters, while controlling for subjects’ body mass index and providers’ level of training in the final best-fit multivariable regression model.Results: Cumulative incidence of epidural catheter failures was 6.6% for CSE and 11.6% for EPID (P = 0.001). In the multivariable regression model, catheters placed with CSE versus epidural were less likely to fail (hazard ratio, 0.58; 95% CI, 0.43 to 0.79; P = 0.0002) for labor analgesia. Among the catheters that failed, there was no overall difference in failure time course between the techniques (hazard ratio, 1.17; 95% CI, 0.89 to 1.54; P = 0.26) even though more failed catheters with CSE (48.4%) than with EPID (30.6%) were recognized within the first 30 min of placement (P = 0.009).Conclusions: In this cohort, CSE has a significantly lower risk of overall epidural catheter failures than EPID and does not delay recognition of epidural catheter failures. Choice of CSE versus EPID should be based on overall risk of failure, efficacy, and side effects.
CME Credit: 1.00 AMA PRA Category 1 Credit™
Required Hardware / Software:Adobe Acrobat Reader, Internet connection. Web browser version must have been released within the last three years.
Activity Release Date:08/16/2016
Activity Expiration Date:08/15/2019
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Learning Objectives: After successfully completing this activity, the learner will be able to:
Faculty and Credentials
Editor-in-Chief: Evan D. Kharasch, M.D., Ph.D., has reported receiving consulting fees from TEN Healthcare and The Medicines Co., and honoraria from Astra-Zeneca.
Editor-in-Chief Emeritus: James C. Eisenach, M.D., receives consulting fees from Aerial BioPharma LLC and Cubist Pharmaceuticals, Inc.
CME Editors: Leslie C. Jameson, M.D. has reported no relevant financial relationships with commercial interests. Dan J. Kopacz, M.D., has an equity position in SoloDex, LLC.
Authors: Jessica M. Booth, M.D., Joshua C. Pan, B.S., Vernon H. Ross, M.D., Gregory B. Russell, M.S., Lynne C. Harris, B.S.N., and Peter H. Pan, M.D., M.S.E.E., report no relevant financial relationships with commercial interests.
ASA Staff: Kari L. Lee, Editorial Manager, has reported no relevant financial relationships with commercial interests. Ginger Clark, Senior Editor, has an equity position in Merck & Co.
Disclosure StatementThe American Society of Anesthesiologists remains strongly committed to providing the best available evidence-based clinical information to participants of this educational activity and requires an open disclosure of any potential conflict of interest identified by our faculty members. It is not the intent of the American Society of Anesthesiologists to eliminate all situations of potential conflict of interest, but rather to enable those who are working with the American Society of Anesthesiologists to recognize situations that may be subject to question by others. All disclosed conflicts of interest are reviewed by the educational activity course director/chair to ensure that such situations are properly evaluated and, if necessary, resolved. The American Society of Anesthesiologists educational standards pertaining to conflict of interest are intended to maintain the professional autonomy of the clinical experts inherent in promoting a balanced presentation of science. Through our review process, all American Society of Anesthesiologists CME activities are ensured of independent, objective, scientifically balanced presentations of information. Disclosure of any or no relationships will be made available for all educational activities.
The information provided at this CME activity is for continuing education purposes only and is not meant to substitute for the independent medical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition.
Core Competencies: Medical knowledge
Target Audience: ANESTHESIOLOGY Journal CME is intended for anesthesiologists. Researchers and other health care professionals with an interest in anesthesiology may also participate.
CME Credit: 1.00 AMA PRA Category 1 Credit™
The American Society of Anesthesiologists is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
The American Society of Anesthesiologists designates this journal-based CME activity for a maximum of 1.00 AMA PRA Category 1 Credit(s)™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
1.00 Non-physician Credit Non-physicians may receive a Certificate of Completion stating that this activity was designated for 1.00 AMA PRA Category 1 Credit(s)™.
Activity Release Date: 8/16/2016 Activity Expiration Date: 8/15/2019
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