Canadian Journal of Anesthesia-Journal Canadien D Anesthesie最新文献

Purpose: Over the last decade, there has been an increasing interest in gender equity. The present study explored the gender gap in five leading anesthesiology journals worldwide, covering the period from 1980 to 2020.

Methods: We included all articles published in Anaesthesia, the British Journal of Anaesthesia, Anesthesiology, Anesthesia & Analgesia, and the Canadian Journal of Anesthesia in the years 1980, 1990, 2000, 2010, and 2020, analyzing trends in women's authorship. We explored its association with variables including study type, subspecialty, continent of the corresponding author, number of authors, and gender of coauthors.

Results: There was a significant increase in women's authorship across all positions (first, second, and last) over the years (P < 0.001). Despite this progress, a substantial gender disparity remains evident. Women's authorship positions were notably associated with the type of study, the subspecialty, and the continent of the corresponding author. There was a strong positive correlation (0.82) between the total number of authors and women's first authorship position, whereas the correlation was negative (-0.54) for women's last authorship position. Furthermore, women's first and last authorship, as well as first and second authorship, were strongly associated, with odds ratios of 2.13 and 1.99, respectively.

Conclusion: The trajectory of women's authorship in anesthesiology shows an upward trend, yet women continue to be underrepresented in the field. Particularly noteworthy is the finding that, when a woman is either the first or last author, there is a notable increase in the probability of having a woman as the second or first author, respectively. Understanding these dynamics is crucial for fostering inclusivity and diversity within the discipline.

Purpose: Gender disparities in academia are a growing concern, impacting various disciplines, including health care. We aimed to investigate gender-based differences in academic performance, leadership roles, and academic distinction within anesthesiology and critical care medicine.

Source: We conducted electronic searches for relevant articles published in PubMed, CENTRAL, Scopus, Web of Science, Embase, Education Resources Information Center, PsychINFO, and ProQuest from database inception until 23 June 2024. Three researchers conducted blinded assessments using predefined inclusion and exclusion criteria, with discrepancies resolved through discussion. We reported descriptive statistics for quantitative data from the included research articles.

Principal findings: Our initial screening identified 37,311 studies, 71 of which met the specified inclusion criteria and were therefore evaluated. Analysis of academic publishing trends revealed a gradual increase in the proportion of women as coauthors, first authors (in anesthesiology, the increase ranged from 7% to 17%, and in critical care medicine the increase was 4%), last authors, and corresponding authors. Despite these improvements, women remain underrepresented on the editorial boards of top journals. Although an increase in the representation of women as abstract presenters at conferences was noted, gender disparities persist in senior authorship roles.

Conclusion: Gender disparities are evident in academic leadership positions within anesthesiology and critical care medicine, with few women holding editor-in-chief positions and underrepresentation of women on editorial boards. We observed similar gaps in departmental and scientific society leadership roles. The distribution of awards, prizes, and grants remains skewed, indicating persistent gender imbalances in academic distinction. While progress has been made in certain areas, substantial gaps persist in scholarly publishing, leadership, and academic distinction.

Study registration: PROSPERO ( CRD42022377524 ); first submitted 20 November 2022.

Purpose: During the COVID-19 pandemic, neighbourhoods with high material deprivation and high proportions of racialized Canadians were disproportionately affected by COVID-19. Many of these neighbourhoods were served by community hospitals. We sought to compare the burden of COVID-19 care in community and academic intensive care units (ICUs) in Ontario, Canada.

Methods: We included all adult patients admitted to Ontario ICUs with COVID-19 between 1 March 2020 and 31 July 2021 in a retrospective cohort study. We compared patient volumes, demographics, interventions, and outcomes between community hospital corporations (CHCs) and academic hospital corporations (AHCs).

Results: During the first three waves of the pandemic, 9,651 adult ICU admissions for COVID-19 were reported across 72 hospital corporations in Ontario: 6,902 (71.5%) in CHCs and 2,749 (28.5%) in AHCs. Days of ICU care per baseline ICU bed were highest in large CHCs (> 10 baseline ICU beds) relative to AHCs and small CHCs (median [interquartile range], 73.7 [53.8-110.6] vs 42.2 [32.7-71.8] vs 21.4 [7.2-40.3]; Kruskal-Wallis test, P < 0.001). Among direct ICU admissions, CHC patients had greater severity of illness whereas among transfer ICU admissions, AHC patients were more severely ill. In a multivariable logistic regression model, mortality was similar among patients with index admission to a CHC or AHC; however, patients with index admission to an AHC were more likely to receive extracorporeal membrane oxygenation (adjusted odds ratio, 6.16; 95% confidence interval, 4.72 to 8.11).

Conclusion: During the pandemic, Ontario's large CHCs provided significantly more days of ICU COVID-19 care per baseline ICU bed compared with AHCs and small CHCs. Equipping large CHCs to handle ICU surges during future emerging disease outbreaks should be a priority for pandemic preparedness.

Purpose: Pulmonary aspiration is an adverse event with high morbidity and mortality. Despite fasting for > 8 hr, some patients still have residual gastric volume and are thus at risk of aspiration. We aimed to determine the accuracy of gastric ultrasound in assessing residual gastric content in patients undergoing upper gastrointestinal endoscopy.

Methods: In a prospective cohort study, we performed gastric ultrasound immediately before upper gastrointestinal endoscopy in a sample of 294 patients. We categorized the ultrasound results as high risk of aspiration when the fluid volume was > 1.5 mL·kg^-1 or when there was thick/solid content. We applied Spearman's test to determine the correlation between aspirated volume and ultrasound-estimated volume using three mathematical models. We assessed the method's accuracy by calculating its sensitivity and specificity.

Results: We included 282 patients in the analysis. The incidence of residual gastric contents was 5%. There were no aspiration events. Prokinetic use (relative risk [RR], 7.5; 95% confidence interval [CI], 1.9 to 29.1; P < 0.01), previous stroke (RR, 4.0; 95% CI, 1.2 to 13.6; P = 0.02), and male sex (RR, 3.3; 95% CI, 1.2 to 9.4; P = 0.02) were significantly more frequent among those with residual gastric content. The ultrasonography's specificity and sensitivity to predict gastric content at risk of aspiration were 100% and 77%, respectively, with a positive predictive value of 100% and a negative predictive value of 99%.

Conclusion: Ultrasonography was an effective way to assess residual gastric content, which can help improve patient safety.

Purpose: This Continuing Professional Development module aims to help the general anesthesiologist recognize common pitfalls in ambulatory pediatric adenotonsillectomy and perform appropriate risk stratification, analgesic management, and disposition planning.

Principal findings: Pediatric adenotonsillectomy is a widely performed procedure. An updated approach to preoperative risk assessment of commonly associated comorbidities allows the practitioner to anticipate and plan for adverse events. Risks include obstructive sleep apnea, airway hyperresponsiveness, asthma, recent upper respiratory tract infections, obesity, and young age. Risk-modifying interventions consist of delaying surgery, preoperative bronchodilator therapy, recognizing the limitations of volatile agents, and referral of high-risk patients to specialized pediatric centres. Appropriate selection of intraoperative and postoperative analgesia can optimize patient comfort, avoid readmission, and limit adverse events such as postoperative hemorrhage or respiratory depression.

Conclusions: Ambulatory pediatric adenotonsillectomy is a common surgical procedure, performed both in the community as well as tertiary care pediatric centres. To optimize outcomes in this heterogenous patient population, anesthesiologists must risk stratify and anticipate perioperative respiratory adverse events.

Purpose: Same-day mobilization and early hospital discharge is increasingly emphasized following hip and knee arthroplasty. One challenge of spinal anesthesia in this setting is achieving adequate block height while avoiding excessively large local anesthetic doses and prolonged motor and sensory blockade. Using a hypobaric local anesthetic solution is one potential strategy, as its intrathecal distribution can be reliably manipulated by patient positioning to achieve adequate block height independent of dose.

Methods: We conducted a prospective observational study to determine the clinical characteristics of spinal anesthesia with low-dose hypobaric mepivacaine and bupivacaine in patients undergoing hip and knee arthroplasty. Thirty patients scheduled for same-day discharge received 51 mg of hypobaric 1.5% mepivacaine and 30 patients scheduled for inpatient stay received 10 mg of hypobaric 0.33% bupivacaine.

Results: The mean (standard deviation) time to achieve sensory blockade at or above L1 and T10 in the operative limb was 5.7 (1.8) and 7.3 (3.3) min with mepivacaine and 6.2 (2.6) and 8.1 (4.8) min with bupivacaine, respectively. Anesthesia was adequate for surgical commencement in all patients regardless of spinal injection level. Four patients required anesthetic supplementation for surgical completion. Sensory block duration at or above T10 and L1 in the operative limb was 97 (27) and 115 (37) min with mepivacaine and 127 (32) and 161 (34) min with bupivacaine, respectively. Motor function returned by 145 (37) and 217 (43) min in mepivacaine and bupivacaine groups, respectively.

Conclusion: The anesthetic profiles of low-dose hypobaric mepivacaine and bupivacaine were favorable for fast-track hip and knee arthroplasty with short and predictable operating times.