AANA journal
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This article examines successful management of an anesthesia machine failure with the Draeger (or Dräger) Apollo (Draeger Inc) anesthesia workstation. Approximately 45 minutes into the case, while the patient was under general anesthesia and mechanical ventilation, the anesthesia machine failed to achieve positive pressurization following a high-pressure alarm. Despite multiple maneuvers, the issue did not resolve until the machine was manually powered off and on at the main power switch. This case report emphasizes the importance of always having a backup means of patient ventilation and anesthesia administration.
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Randomized Controlled Trial
Sevoflurane Consumption During Inhalational Induction in Children: A Randomized Comparison of Minute Ventilation-Based Techniques With Standard Fixed Fresh Gas Flow Technique.
This study was done to ascertain the optimum fresh gas flow (FGF) offering the best balance between rapid induction and minimal waste in pediatric patients. Forty-five children (weighing 10-20 kg) undergoing elective procedures under general anesthesia were randomly assigned into 3 groups: 0.5 minute ventilation (MV), MV, and S (FGF = 6 L/min). After priming the pediatric closed circuit, anesthesia was induced using a face mask with 8% sevoflurane in 100% oxygen (Draeger Primus Vista 120 anesthesia machine) at FGF-determined MV per group allocation. ⋯ Sevoflurane consumption (3.8 vs 5.8 vs 9.2 mL) and cost of sevoflurane (104.2 vs 199.4 vs 312.8 rupees) were lowest in group 0.5 MV (P < .001). There was no difference in hemodynamic parameters, movement on cannulation/LMA insertion, and rescue propofol boluses required. For pediatric sevoflurane induction, half the MV-based FGF provided similar anesthetic conditions for LMA insertion with minimum sevoflurane consumption.
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A "cannot ventilate, cannot intubate" scenario is a rare, high-risk anesthesia event. Cricothyrotomy is the final step, but anesthesia training and maintenance of surgical airway skills is variable. The ability to "cut to air" when one performs a cricothyrotomy may be all that prevents a patient from experiencing anoxic brain injury or death. ⋯ The confidence of CRNAs in performing a successful cricothyrotomy in less than 2 minutes was significantly increased (P ≤ .001). Simulating airway skills improved performance, speed, and confidence. Because not all CRNAs have had extensive education in performing surgical airways and practicing these skills, simulation may have additional value in developing and maintaining skills and confidence.
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Newly advanced diagnostic bronchoscopic procedures, such as electromagnetic navigation bronchoscopy using navigation system technology (superDimension, Medtronic), provides computed tomography referenced and computerized 3-dimensional imaging. To increase accuracy and higher diagnostic biopsy yield, electromagnetic navigation bronchoscopy necessitates special anesthetic and ventilation techniques providing the interventional pulmonologist minimal respiratory lung motion. This anesthetic meets 2 important goals by limiting almost all interference from diaphragmatic and lung movement while allowing the anesthesia provider to achieve hands-free management. ⋯ The technique offers essentially no chest motion, without interrupting ventilation. Additionally, HFJV allows the anesthetist better availability to attend to total intravenous anesthesia, adjustments, and interventions. The intention of this article is to detail an anesthetic method that provides a hands-free technique that requires only one anesthesia provider.
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Opioids are the mainstay of intraoperative pain control, but they have several deleterious effects. Alternative medications and strategies to opioids, while effective in producing intraoperative analgesia, are underutilized by anesthesia providers. The purpose of this study was to examine and describe Certified Registered Nurse Anesthetists' perspectives and practices on administering opioids vs nonopioid or opioid-sparing strategies ("opioid alternatives") to treat intraoperative pain. ⋯ Barriers expressed by study participants included opioid superiority, inconsistent analgesic effects of intraoperative opioid alternatives, limited experience with opioid alternatives, limited resources on opioid alternatives, negative experiences with intraoperative opioid-alternative administration, and patient comorbidities. Facilitators expressed by study participants included the adverse effects of opioids, institutional policy and procedures, positive experiences with opioid-alternative administration, and regional anesthesia superiority. This study highlights the importance of improving education, training, and institutional policies in support of opioid-alternative medications and strategies to treat intraoperative pain and better prevent opioid addiction and abuse.