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Authors: Anna Maria Bombardieri, M.D., Ph.D. and Ban C. H. Tsui, M.D., M.Sc. Anesthesiology May 2022, Vol. 136, 867–868. To the Editor: We read with great interest the study by Koch et al.,1 which concluded that “ephedrine results in better brain microcirculation and oxygen delivery than phenylephrine” and raised “concerns regarding phenylephrine for blood pressure augmentation in patients […]
Read MoreAuthors: Klaus Ulrik Koch, M.D., Ph.D. and Mads Rasmussen, M.D., Ph.D. Anesthesiology May 2022, Vol. 136, 868. In Reply: We thank Bombardieri and Tsui1 for their excellent comments and interest in our study.2 We agree with Bombardieri and Tsui that the deterioration of microperfusion and possibly tissue oxygenation after phenylephrine administration in the “healthy” brain hemisphere2 indicates that different vasopressors […]
Read MoreAuthors: Rebecca M. Pullon, Ph.D. et al Anesthesiology March 2022, Vol. 136, 420–433. Background The wakeful brain can easily access and coordinate a large repertoire of different states—dynamics suggestive of “criticality.” Anesthesia causes loss of criticality at the level of electroencephalogram waveforms, but the criticality of brain network connectivity is less well studied. The authors […]
Read MoreAuthors: Cecilie Holse, M.D. et al Anesthesiology March 2022, Vol. 136, 408–419. Background Hyperoxia and oxidative stress may be associated with increased risk of myocardial injury. The authors hypothesized that a perioperative inspiratory oxygen fraction of 0.80 versus 0.30 would increase the degree of myocardial injury within the first 3 days of surgery, and that an antioxidant […]
Read MoreAuthors: Amr E. Abouleish, M.D., M.B.A. et al Anesthesiology May 2022, Vol. 136, 864–865. To the Editor: We read with great interest the review article on the American Society of Anesthesiologists (ASA; Schaumburg, Illinois) Physical Status Classification System by Horvath et al. The review presents in excellent detail the origin, evolution, and current state of the ASA […]
Read MoreAuthors: David N. Flynn, M.D., M.B.A. et al Anesthesiology May 2022, Vol. 136, 865–866. To the Editor: We read with interest the review of the American Society of Anesthesiologists (ASA; Schaumburg, Illinois) Physical Status Classification System by Horvath et al. The authors provided an overview of the ASA Physical Status system; however, one use of the ASA […]
Read MoreAuthors: Balazs Horvath, M.D., F.A.S.A. et al Anesthesiology May 2022, Vol. 136, 866–867. In Reply: We sincerely thank Abouleish et al. and Flynn et al for their interest in and comments on our review article. Whereas our manuscript emphasized the virtually universal, multidisciplinary application of the American Society of Anesthesiologists (ASA; Schaumburg, Illinois) Physical Status Classification System to patient care […]
Read MoreAuthors: Hon Sen Tan, M.D., M.Med., M.H.Sc. et al Anesthesiology May 2022, Vol. 136, 678–687. Background The dural puncture epidural technique may improve analgesia quality by confirming midline placement and increasing intrathecal translocation of epidural medications. This would be advantageous in obese parturients with increased risk of block failure. This study hypothesizes that quality of […]
Read MoreAuthors: Sunny S. Lou, M.D., Ph.D. et al Anesthesiology February 2022. Background Accurate estimation of surgical transfusion risk is essential for efficient allocation of blood bank resources and for other aspects of anesthetic planning. This study hypothesized that a machine learning model incorporating both surgery- and patient-specific variables would outperform the traditional approach that uses […]
Read MoreASA Monitor February 2022, Vol. 86, 20. What We’ve Got Here Is Failure to Communicate A first dose of ketorolac was given early by a different provider. After scanning the ketorolac at the end of the case, I did not confirm that any had already been administered. The error was discovered during handoff as I was […]
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