Does the Current American Society of Anesthesiologists Physical Status Classification Represent the Chronic Disease Burden in Children Undergoing General Anesthesia?

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Pain Management: A Problem-Based Learning Approach

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Handbook of Sepsis

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A Comparison of Spinal Anesthesia Versus Monitored Anesthesia Care With Local Anesthesia in Minimally Invasive Fetal Surgery

BACKGROUND: Minimally invasive fetal surgery is commonly performed to treat twin-to-twin transfusion syndrome with selective fetoscopic laser photocoagulation and twin-reversed arterial perfusion sequence using radiofrequency ablation. Although an increasing number of centers worldwide are performing these procedures, anesthetic management varies. Both neuraxial anesthesia and monitored anesthesia care with local anesthesia are used at different institutions. We sought to determine the efficacy and outcomes of these 2 anesthetic techniques for fetal procedures at our institution. METHODS: All patients undergoing minimally invasive fetal surgery for twin-to-twin transfusion syndrome or twin-reversed arterial perfusion sequence over a 6-year time period (2011–2016) were reviewed. Patients receiving monitored anesthesia care with local anesthesia were compared with those receiving spinal anesthesia in both selective fetoscopic laser photocoagulation and radiofrequency ablation fetal procedures. The primary outcome examined between the monitored anesthesia care and spinal anesthesia groups was the difference in conversion to general anesthesia using a noninferiority design with a noninferiority margin of 5%. Secondary outcome measures included use of vasopressors, procedure times, intraoperative fluids administered, maternal complications, and unexpected fetal demise within 24 hours of surgery. RESULTS: The difference in failure rate between monitored anesthesia care and spinal was −0.5% (95% CI, −4.8% to 3.7%). Patients receiving monitored anesthesia care plus local anesthesia were significantly less likely to need vasopressors, had a shorter presurgical operating room time, and received less fluid (P

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Speaker Gender Representation at the American Society of Anesthesiology Annual Meeting: 2011–2016

The American Society of Anesthesiologists (ASA) Annual Meeting is the primary venue for anesthesiologists to present research, share innovations, and build networks. Herein, we describe gender representation for physician speakers at the Annual Meeting relative to the specialty overall. Details of ASA Annual Meeting presentations for individuals and panels were abstracted from the ASA archives for 2011–2016. Observed speaker gender composition was compared to expected composition based on the gender distribution of members of the ASA. There were 5167 speaker slots across 2025 presentations and panels. Of the speaker slots, 3874 were assigned to men and 1293 to women. Speaker slot gender composition was relatively consistent between 2011 and 2016 (annual percentage 22.3%–27.7% women, trend test P = .062). ASA membership composition of women increased slightly over the study period (24%–28%). The overall observed number of women in speaker slots over the study period did not differ significantly from what would be expected based on the ASA membership composition (25.0% observed vs 25.9% expected; P = .153). However, the percentage of single speakers who were women was significantly less than would be expected based on the ASA gender distribution (20.2% observed vs 25.9% expected; P

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General Anesthesia Alters the Diversity and Composition of the Intestinal Microbiota in Mice

Dysbiosis of the intestinal microbiota has been shown to result in altered immune responses and increased susceptibility to infection; as such, the state of the intestinal microbiome may have profound implications in the perioperative setting. In this first-in-class study, we used 16s ribosomal RNA sequencing and analysis in a mouse model of general anesthesia to investigate the effects of volatile anesthetics on the diversity and composition of the intestinal microbiome. After 4-hour exposure to isoflurane, we observed a decrease in bacterial diversity. Taxonomic alterations included depletion of several commensal bacteria including Clostridiales. These data identify volatile anesthetics as potential contributors to microbial dysbiosis in the postoperative patient. Accepted for publication October 17, 2018. Funding:This work was supported by grants from the National Institutes of Health (R01 GM120519-01). The authors declare no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (https://ift.tt/KegmMq). Reprints will not be available from the authors. Address correspondence to Cyrus D. Mintz, MD, PhD, The Johns Hopkins University School of Medicine, 720 Rutland Ave, Ross Bldg 370, Baltimore, MD 21205. Address e-mail to Cmintz2@jhmi.edu. © 2018 International Anesthesia Research Society

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The Impact of Postoperative Intensive Care Unit Admission on Postoperative Hospital Length of Stay and Costs: A Prespecified Propensity-Matched Cohort Study

BACKGROUND: In this prespecified cohort study, we investigated the influence of postoperative admission to the intensive care unit versus surgical ward on health care utilization among patients undergoing intermediate-risk surgery. METHODS: Of adult surgical patients who underwent general anesthesia without an absolute indication for postoperative intensive care unit admission, 3530 patients admitted postoperatively to an intensive care unit were matched to 3530 patients admitted postoperatively to a surgical ward using a propensity score based on 23 important preoperative and intraoperative predictor variables. Postoperative hospital length of stay and hospital costs were defined as primary and secondary end points, respectively. RESULTS: Among patients with low propensity for postoperative intensive care unit admission, initial triage to an intensive care unit was associated with increased postoperative length of stay (incidence rate ratio, 1.69 [95% CI, 1.59–1.79]; P

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