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Background: Laparoscopic sleeve gastrectomy (LSG) is the most commonly performed bariatric surgery performed in North America. As our knowledge of the importance in limiting narcotic use in postoperative patients increases, we sought to evaluate the effect of transversus abdominis plane (TAP) blocks on inpatient narcotic use in patients undergoing LSG., Methods: A retrospective review of LSG performed at a single institution by 3 bariatric surgeons was performed. All cases over a 15-month period were included, and anesthesia records were reviewed to stratify patients that received a TAP block and those that did not. Demographic, as well as surgical, outcomes were collected for all patients. Narcotic utilization, as reported in morphine equivalents (ME), was evaluated between the 2 groups., Results: 384 LSG patients were identified, of which 37 (9.6%) received a TAP block. There was no statistically significant difference in postoperative morbidity, length of stay, or readmission between groups. Median narcotic utilization in hospital days 1 and 2 in patients with TAP blocks was 49 ME (Interquartile Range (IQR) 14.5-84.5) to 82.5 ME (IQR 57.4-106) in the no-TAP group ( P < .001). After controlling for multiple demographic- and patient-related cofactors, multiple linear regression analysis demonstrated TAP block patients utilized 22.48 ME less than the no-TAP group ( P < .001) in the first 2 days of their hospitalization., Discussion: Patients that received a TAP block as a part of their perioperative anesthetic care utilized less in-hospital narcotics than those patients that did not receive a TAP block. TAP blocks should be considered as part of a multimodal pain control strategy for patients undergoing LSG.

Competing Interests: Conflicts of Interest: J. F. Answine have spoken nationally and internationally for Baxter and Desflurane and received financial compensation from Baxter.

Oxygen supply failures are potentially life-threatening and are often associated with death or brain damage. Knowledge of how oxygen is supplied is essential for understanding how failures are caused and their management. Even though safety mechanisms exist to reduce the likelihood of a supply failure, events still occur. Simulation studies have identified knowledge and performance gaps in management of supply failures. A straightforward approach to immediate management of these critical events is provided., Competing Interests: Disclosure R. Botney has nothing to disclose. J.F. Answine has nothing to disclose. C.E. Cowles, Technical Committee Member for National Fire Protection Association (NFPA) Healthcare Section. Travel expense reimbursement only., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Evaluation of the degree of neuromuscular blockade by the surgeon using clinical criteria alone is unreliable. We report a case of prolonged neuromuscular blockade lasting 5.5 h, where an additional intra-operative dose of neuromuscular relaxant was given at the request of the surgical team. Possible causes of prolonged neuromuscular antagonism are discussed, as is the importance of neuromuscular assessment prior to the administration of additional neuromuscular blocking agents when receiving a surgeon request for additional neuromuscularblockade.