Background: In the emergency department (ED), residents and attendings may have a short-term relationship, such as a single shift. This poses challenges to learner assessment, instructional strategy selection, and provision of substantive feedback. We implemented a process for residents to identify goals for ED shifts; characterized residents' goals; and determined how goal identification affected learning, teaching, and feedback. Methods:This was an observational study in a large, tertiary pediatric ED using mixed methods. Residents were asked to identify learning goals for each shift and were asked postshift if they had identified, accomplished, and/ or received feedback on these goals. Goals were categorized by Accreditation Council for Graduate Medical Education Core Competencies. Predictors of goal identification, accomplishment, and receipt of feedback were determined. Residents and attendings were interviewed about their experiences.Results: We collected 306 end-of-shift surveys (74% response rate) and 358 goals and conducted 29 interviews. We found that: 1) Goal setting facilitated perceived learning. Residents identified goals 54% of the time. They accomplished 89% of and received feedback on 76% of goals. 2) Residents' perceived weaknesses, future practice settings, and available patients informed their goals. Most goals mapped to patient care (59%) or medical knowledge (37%) competencies. 3) Goal identification helped attendings determine residents' needs. 4) Ideal goals were specific and achievable. 5) Common barriers were busyness of the ED and difficulty creating goals. Residents were less likely to identify goals (odds ratio [OR] = 0.62, 95% confidence interval [CI] = 0.41 to 0.94) and receive feedback on busy evening shifts (OR = 0.19, 95% CI = 0.10 to 0.37) and were most likely to receive feedback overnight (OR = 3.66, 95% CI = 1.87 to 7.14). Conclusions:Asking residents to identify goals for ED shifts as an instructional strategy facilitated perceived learning, goal accomplishment, and receipt of feedback. Resident-driven goal identification is a simple and effective instructional strategy that physicians can incorporate into their precepting in the ED.
We have conducted a phylogenetic analysis of the Fam53A gene throughout vertebrate evolution. Our studies reveal extreme differences in the rates of change between lineages. In particular, rates of change are much higher in placental mammals (Eutheria) than in other groups. The faster evolutionary rates of change in Eutheria correlate with a transition of the Fam53A‐containing isochore towards a much higher guanosine and cytosine (G+C) content. Changes in isochore G+C content are now thought to reflect changes in regional meiotic recombination rates, and to result from base composition biases in the recombination machinery. We have investigated the recent base composition changes for the Fam53A gene in two eutherian groups, rodents and primates, in which we have dense taxon sampling. Our initial goal in comparing these two groups was to compare the evolution of Fam53A in a clade in which the gene is located close to the telomeres (primates) to one in which the telomeric location has been lost (rodents). While we found that chromosomal location did not correlate with evolutionary changes, our studies indicate that the mapping of historical sequence changes may allow the mapping of ancient recombination hot spots. Sequences within the primate Fam53A genes display localized, transient, increases in G+C content, as would be expected from the known biology of recombination hot spots.
Medulloblastoma (MB) is the most common high-grade primary pediatric brain tumor. Recent registry-based studies in children with central nervous system (CNS) tumors have demonstrated that survival outcomes differ by race/ethnicity in multivariable analyses, with Hispanic patients having highest hazard of death overall. To investigate this finding in MB patients, we examined survival in children (0-14 years) and adolescent/young adults (15-39 years) with MB from 2007-2016 in the 2018 Surveillance Epidemiology and End Results Program database, using Kaplan Meier analysis, log-rank test and Cox proportional hazard ratios (HR) with 95% confidence intervals (CI). Race and ethnicity were categorized according to the U.S. Census, with Hispanic ethnicity (yes/no) analyzed separately from race (Black, White, Asian, Other). Among 1612 patients, 81% were White, 9% were Black, 8% were Asian or Pacific Islander, and 2% were from “other” or unknown racial groups. 28% of the cohort was of Hispanic ethnicity. Univariate analysis found that Black patients had a significantly higher hazard of death than White patients (HR=1.55, CI: 1.16 – 2.08, p=0.003). In contrast, Hispanic ethnicity was not significantly associated with outcome (HR=0.98, CI: 0.79-1.21, p=0.8). Medicaid or no insurance (vs. private) were each significantly associated with higher risk of death; Medicaid (HR =1.23, CI = 1.01 - 1.51, p=0.041); Uninsured (HR=2.07, CI=1.41-3.02, p=<0.001). Of the treatment modalities analyzed, patients who received neither chemotherapy nor radiation experienced higher hazard of death than patients who received both treatments (HR=3.63, CI 2.78-4.76, p=<0.001). Consistent with observations in other cancers, racial disparities are observed in patients with MB, with Black race conferring increased risk of death. Public insurance was also significantly associated with death, as was not receiving combined-modality therapy. Further work is needed to understand the multilevel factors impacting diagnosis, treatment and outcome among children and AYAs with MB and prospective studies are warranted.
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