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Authors: Matthew B. Allen, MD and Nicholas Sadovnikoff, MD, FCCM, HEC-C ASA Monitor February 2022, Vol. 86, 23–24. ASA guidelines for perioperative management of do-not-resuscitate (DNR) orders recommend that we revisit existing DNR orders prior to surgery and modify them as needed to align with patient preferences and clinical circumstances (asamonitor.pub/3lq2jgi). This “revisit and revise” or […]
Read MoreASA Monitor February 2022, Vol. 86, 14. New medical technology designed to better manage hypotension during surgery gains FDA clearance Directed Systems Limited, a medical software and data science company based in Cambridge, U.K., recently received U.S. Food and Drug Administration 510(k) clearance for a new version of its Hypotension Decision Assist (HDA) software, HDA-OR2. This […]
Read MoreAuthors: Rune P. Hasselager, M.D. et al Anesthesiology March 2022, Vol. 136, 459–471. Background Surgery is the main curative treatment for colorectal cancer. Yet the immunologic and humoral response to surgery may facilitate progression of micro-metastases. It has been suggested that epidural analgesia preserves immune competency and prevents metastasis formation. Hence, the authors tested the […]
Read MoreAuthors: Chung-Sik Oh, M.D., Ph.D. et al Anesthesiology March 2022, Vol. 136, 448–458. Background The antitumor effects of natural killer cells, helper T cells, and cytotoxic T cells after cancer surgery were reported previously. This study hypothesized that propofol-based anesthesia would have fewer harmful effects on immune cells than volatile anesthetics–based anesthesia during colorectal cancer […]
Read MoreAuthors: Clémence Erlich, M.D. et al Anesthesiology March 2022, Vol. 136, 472–481. Background Perioperative hypersensitivity reactions may be difficult to diagnose during general anesthesia. Postinduction hypotension is the most common sign but is not specific. It was recently suggested that low end-tidal carbon dioxide (ETco2) might be a marker of anaphylaxis (Ring and Messmer grades […]
Read MoreAuthor: Dong Xu Chen, Ph.D. Anesthesiology April 2022, Vol. 136, 662. To the Editor: Silverton et al. nicely described their work with a prototype monitor that measures oxygen partial pressure in the urine at the exit from the urinary catheter. I commend the authors for further emphasizing the association between oxygen partial pressure in the urine and […]
Read MoreAuthors: Natalie A. Silverton, M.D., F.R.C.P.C., F.A.S.E. et al Anesthesiology April 2022, Vol. 136, 662–663. In Reply: We thank Dr. Chen for his interest in our pilot study determining the feasibility of real-time noninvasive urine oxygen measurements in cardiac surgery patients. The device we investigated was a brand-new technology measuring urine oxygen outside of the body at […]
Read MoreAuthors: Madison I. Goldberger, MD et al ASA Monitor January 2022, Vol. 86, 26–27. The COVID-19 global pandemic led to a complete halt in elective surgery so that hospitals could conserve their resources for the onslaught of critically ill patients. Now, as the rate of new infections that require hospitalization declines in the wake of […]
Read MoreAuthor: Sher-Lu Pai, M.D and Niraja Rajan, M.B.B.S., FAAP ASA Monitor October 2019, Vol. 83, 24–26. Niraja Rajan M.B.B.S., FAAP, is Associate Professor of Anesthesiology and Perioperative Medicine, Penn State Health, and Medical Director, Hershey Outpatient Surgery Center, Hershey, Pennsylvania. Ambulatory surgery continues to expand rapidly. An increasing number of patients with several comorbidities and advanced age are […]
Read MoreAuthor: Catlin Nalley ASA Monitor February 2021, Vol. 85, 27. Decades ago, sending a patient home the same day he or she underwent surgery was unheard of. However, ongoing advancements in surgical practices as well as improvements in postoperative care have made this the norm. Since it was first proposed in the mid-19th century, ambulatory […]
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