18 research outputs found
Contrast-Enhanced Endoscopic Ultrasound for Identification of Sentinel Lymph Nodes in Esophageal Cancer
Introduction:
In esophageal carcinoma, lymph node involvement is a crucial aspect of nodal staging and determining treatment strategies. Although grayscale endoscopic ultrasound (EUS) is the standard of care for staging, it is unable to identify lymph node drainage from primary tumors or sentinel lymph nodes (SLN). The goal of this study was to determine if Contrast Enhanced Endoscopic Ultrasound (CE- EUS) is superior to EUS in the identification of SLNs and nodal staging in esophageal carcinoma.
Methods:
In the unblinded pilot study, patients with newly diagnosed esophageal carcinoma were recruited to undergo CE-EUS and standard EUS. EUS was performed and visible lymph nodes were noted. The contrast agent, Sonazoid was injected peri-tumorally. Fine needle aspiration (FNA) was performed on all lymph nodes considered suspicious by either modality. Specimens were compared, using cytology as a reference.
Results:
55 peri-esophageal lymph nodes were collected from 14 enrolled patients, with tumor staging of T2 and T3. 10 nodes identified as suspicious by EUS and 19 nodes identified as suspicious by CE-EUS were sampled by FNA. 4 nodes (40% cytologic yield) identified by EUS and 12 nodes (63% cytologic yield) identified by CE-EUS showed signs of metastatic disease. Nodal staging was upgraded in 4 patients (29%) with the addition of SLNs identified by CE-EUS.
Discussion:
CE-EUS may increase the identification of SLNs and increase cytologic yield that would not have normally been biopsied using EUS. This increase in SLN identification and cytologic yield can provide more accurate lymph node staging in esophageal carcinoma. Further study is indicated
IMPACT: The Journal of the Center for Interdisciplinary Teaching and Learning. Volume 10, Issue 2, Summer 2021
Impact: The Journal of the Center for Interdisciplinary Teaching & Learning is a peer-reviewed, biannual
online journal that publishes scholarly and creative non-fiction essays about the theory, practice, and assessment of interdisciplinary education. Impact is produced by the Center for Interdisciplinary Teaching & Learning at Boston University
College of General Studies. Impact accepts submissions throughout the year and
publishes issues in February and July. Please submit your essays for consideration at https://
citl.submittable.com/submit.
Impact provides free and open access to all of its research publications. There is no charge to authors for
publication, and the journal abides by a CC-BY license. Authors published in Impact retain copyright on their
articles, except for any third-party images and other materials added by Impact, which are subject to copyright
of their respective owners. Authors are therefore free to disseminate and re-publish their articles, subject to
any requirements of third-party copyright owners and subject to the original publication being fully cited. Visitors may
download and forward articles subject to the citation requirements; all copyright notices must be displayed. If readers want
to search by journal subject they might use these words: education, graduate, undergraduate, interdisciplinary, disciplines,
curriculum, higher education.The theme of this issue is interdisciplinary approaches to, or including, the sciences. STEM disciplines like chemistry,
biology, physics, computer science, and math are often taught as separate and distinct from the humanities. The concept
of STEAM (STEM + Arts) has attempted to make STEM subjects more interdisciplinary, allowing students to interact with
the material from different perspectives. The essays in this issue explore unique ways to design and implement interdisciplinary curricula that combine sciences and humanities/arts
CEERS Key Paper VII: Emission Line Ratios from NIRSpec and NIRCam Wide-Field Slitless Spectroscopy at z>2
We use James Webb Space Telescope Near-Infrared Camera Wide Field Slitless
Spectroscopy (NIRCam WFSS) and Near-Infrared spectrograph (NIRSpec) in the
Cosmic Evolution Early Release survey (CEERS) to measure rest-frame optical
emission-line of 155 galaxies at z>2. The blind NIRCam grism observations
include a sample of galaxies with bright emission lines that were not observed
on the NIRSpec masks. We study the changes of the Ha, [OIII]/Hb, and
[NeIII]/[OII] emission lines in terms of redshift by comparing to lower
redshift SDSS and CLEAR samples. We find a significant (>3) correlation
between [OIII]/Hb with redshift, while [NeIII]/[OII] has a marginal (2)
correlation with redshift. We compare [OIII]/Hb and [NeIII]/[OII] to stellar
mass and Hb SFR. We find that both emission-line ratios have a correlation with
Hb SFR and an anti-correlation with stellar mass across the redshifts 0<z<9.
Comparison with MAPPINGS~V models indicates that these trends are consistent
with lower metallicity and higher ionization in low-mass and high-SFR galaxies.
We additionally compare to IllustriousTNG predictions and find that they
effectively describe the highest [OIII]/Hb ratios observed in our sample,
without the need to invoke MAPPINGS models with significant shock ionizionation
components.Comment: 16 pages, 11 figure
A Review of The Wisdom of Whores: Bureaucrats, Brothels and the Business of AIDS
<strong>Review of: </strong><em>The Wisdom of Whores: Bureaucrats, Brothels and the Business of AID </em>S; Elizabeth Pisani; (2008) . W. W. Norton & Co., New York. 372 pages