218 results match your criteria: "Georgetown University Washington[Affiliation]"
Emergency physicians are well-positioned to take a leadership role in telehealth, particularly in emerging categories such as triage, direct acute unscheduled care, and virtual observation. However, the growth of telehealth has outpaced curricular development in emergency medicine (EM) residency programs. This manuscript presents a model longitudinal telehealth curriculum, developed by the consensus of education experts, including representatives from the telehealth interest groups from EM's two primary specialty societies: the American College of Emergency Physicians and the Society for Academic Emergency Medicine.
View Article and Find Full Text PDFJGH Open
December 2024
Ministry of Health Honiara Solomon Islands.
Aims: This study aims to evaluate the current state of endoscopy services in Pacific Island Countries (PICs) by quantifying human and material resources, including the number of trained endoscopists and nurses, the types of procedures performed, and the availability and maintenance of endoscopic equipment.
Methods And Results: A mixed methods survey was conducted in 2023, targeting doctors and nurses who participated in the WGO-FNU-ANZGITA endoscopy training program as well as non-participants. Survey invitations were sent through email, WhatsApp, and Facebook Messenger.
Surgery
December 2024
Division of General, Endocrine and Metabolic Surgery, University of Kentucky, Lexington, KY. Electronic address: https://twitter.com/InabnetMD.
Chem Sci
September 2024
Department of Chemistry, Michigan State University East Lansing Michigan 48824 USA
The prenyl group is present in numerous biologically active small molecule drugs and natural products. We introduce benzylic C-H alkenylation of substrates Ar-CH with alkenylboronic esters (CH)OB-CH[double bond, length as m-dash]CMe as a pathway to form prenyl functionalized arenes Ar-CHCH[double bond, length as m-dash]CMe. Mechanistic studies of this radical relay catalytic protocol reveal diverse reactivity pathways exhibited by the copper(ii) alkenyl intermediate [Cu]-CH[double bond, length as m-dash]CMe that involve radical capture, bimolecular C-C bond formation, and hydrogen atom transfer (HAT).
View Article and Find Full Text PDFCardiol Young
September 2024
Adult Congenital Heart Disease Program, University of California San Diego, San Diego, CA, USA.
Background: Lack of sexual orientation and gender identity (SOGI) data creates barriers for lesbian, gay, bisexual, transgender, and queer (LGBTQ+) people in health care. Barriers to SOGI data collection include physician misperception that patients do not want to answer these questions and discomfort asking SOGI questions. This study aimed to assess patient comfort towards SOGI questions across five quaternary care adult congenital heart disease (ACHD) centres.
View Article and Find Full Text PDFJ Glaucoma
September 2024
Department of Ophthalmology, School of Medicine, Georgetown University Washington, DC.
Heart Rhythm
September 2024
Helmsley Center for Cardiac Electrophysiology, Icahn School of Medicine at Mount Sinai, New York, New York. Electronic address:
J Innov Card Rhythm Manag
March 2024
Georgetown University-Washington Hospital Center, Washington, DC, USA.
Multifocal ectopic Purkinje-related premature contractions are a unique electrophysiological finding that can be characteristic of a rare sodium channelopathy. We describe the medical management of this rare channelopathy in a patient who was pregnant.
View Article and Find Full Text PDFDiverticular bleeding is the most common cause of lower gastrointestinal bleeding and accounts for 20.8%-41.6% of cases in the Western world.
View Article and Find Full Text PDFChem Sci
March 2024
Department of Chemistry, Georgetown University USA
Pyrazinacenes are next generation N-heteroacenes and represent a novel class of stable n-type materials capable of accepting more than one electron and displaying intriguing features, including prototropism, halochromism, and redox chromism. Astonishingly, despite a century since their discovery, there have been no reports on the conjugated polymers of pyrazinacenes due to unknown substrate scope and lack of pyrazinacene monomers that are conducive to condensation polymerization. Breaking through these challenges, in this work, we report the synthesis of previously undiscovered and highly coveted conjugated polymers of pyrazinacenes.
View Article and Find Full Text PDFBJUI Compass
March 2024
Department of Interventional Radiology, Miller School of Medicine University of Miami Miami Florida USA.
Background: Although holmium laser enucleation (HoLEP) is considered a size-independent procedure for treatment of an enlarged prostate, prostate artery embolization (PAE) is emerging as an alternative modality to treat moderate and large benign prostatic hyperplasia. This study aims to compare the early post-operative and short-term efficacy of PAE and HoLEP.
Methods: PubMed, Cochrane Library and EMBASE databases were searched.
California's Channel Islands are home to two endemic mammalian carnivores: island foxes () and island spotted skunks (). Although it is rare for two insular terrestrial carnivores to coexist, these known competitors persist on both Santa Cruz Island and Santa Rosa Island. We hypothesized that examination of their gut microbial communities would provide insight into the factors that enable this coexistence, as microbial symbionts often reflect host evolutionary history and contemporary ecology.
View Article and Find Full Text PDFMineral licks are key ecological components of the Amazon rainforest, providing critical dietary functions for herbivorous and frugivorous mammals and birds, which help maintain the structure and function of the forest itself through seed and nutrient dispersal. One of the most frequent visitors of interior forest mineral licks in the Amazon is the red brocket deer (), a large-bodied ruminant frugivore and seed predator. While several hypotheses for the drivers of geophagy exist, including mineral supplementation, toxin adsorption, and habitat selection, robust data on geophagy for the red brocket deer for large numbers of mineral licks is nonexistent.
View Article and Find Full Text PDFRSC Chem Biol
February 2024
Department of Chemistry, Georgetown University Washington District of Columbia USA
We recently developed Riboglow-FLIM, where we genetically tag and track RNA molecules in live cells through measuring the fluorescence lifetime of a small molecule probe that binds the RNA tag. Here, we systematically and quantitatively evaluated key elements of Riboglow-FLIM that may serve as the foundation for Riboglow-FLIM applications and further tool development efforts. Our investigation focused on measuring changes in fluorescence lifetime of representative Riboglow-FLIM probes with different linkers and fluorophores in different environments.
View Article and Find Full Text PDFChem Sci
January 2024
Department of Chemistry, Georgetown University Washington DC 20057 USA
The analysis of mixtures of chiral compounds is a common task in academic and industrial laboratories typically achieved by laborious and time-consuming physical separation of the individual stereoisomers to allow interference-free quantification, for example using chiral chromatography coupled with UV detection. Current practice thus impedes high-throughput and slows down progress in countless chiral compound development projects. Here we describe a chemometric solution to this problem using a redox-responsive naphthoquinone that enables chromatography-free click chemistry sensing of challenging mixtures.
View Article and Find Full Text PDFAlzheimers Dement (Amst)
December 2023
Introduction: Traditional Alzheimer's disease (AD) and mild cognitive impairment (MCI) screening lacks the sensitivity and timeliness required to detect subtle indicators of cognitive decline. Multimodal artificial intelligence technologies using only speech data promise improved detection of neurodegenerative disorders.
Methods: Speech collected over the telephone from 91 older participants who were cognitively healthy ( = 29) or had diagnoses of AD ( = 30) or amnestic MCI (aMCI; = 32) was analyzed with multimodal natural language and speech processing methods.
J Am Heart Assoc
January 2024
Center of Biostatistics, Informatics and Data Science MedStar Health Research Institute Washington DC USA.
Catheter Cardiovasc Interv
December 2023
Section of Interventional Cardiology, MedStar Georgetown University/Washington Hospital Center, Washington, District of Columbia, USA.
Background: Bleeding events are associated with higher mortality rates in patients with cardiovascular diseases, including patients presenting with acute coronary syndrome (ACS) undergoing coronary revascularization. We aimed to determine whether a reduction in hemoglobin (Hgb) from pre- to postpercutaneous coronary intervention (PCI), with or without evidence of clinical bleeding, is a correlate of in-hospital mortality for patients presenting with ACS who underwent primary PCI.
Methods: We divided 33816 consecutive patients with ACS who underwent PCI into three categories: (1) target group (defined as Hgb reduction without overt bleeding [n = 112]); (2) Hgb reduction with overt bleeding (n = 48); and (3) control group (defined as no Hgb reduction and no overt bleeding [n = 3156]).
Intussusception is the telescoping or invagination of the proximal part of the gastrointestinal tract into an adjacent section. It is rare in adults, accounting for 1% of adult bowel obstruction. Adult presentation of intussusception is variable, with nonspecific, vague symptoms like abdominal pain, nausea, vomiting, and rectal bleeding.
View Article and Find Full Text PDFCardiovasc Revasc Med
January 2024
Section of Interventional Cardiology, MedStar Georgetown University/Washington Hospital Center, Washington, DC, USA. Electronic address:
Purpose: Explore gender disparities in patients undergoing transseptal puncture (TSP) for selected transcatheter cardiac intervention procedures.
Methods: Patients who underwent TSP from January 2015 through September 2021 were reviewed. Primary outcomes were procedural and in-hospital major adverse events.
Lancet Reg Health Southeast Asia
August 2022
Birth Place Lab, Department of Family Practice, University of British Columbia, Vancouver, BC, Canada.
Chem Sci
May 2023
Department of Chemistry, Georgetown University Washington, D.C. USA
Controlling network growth and architecture of 3D-conjugated porous polymers (CPPs) is challenging and therefore has limited the ability to systematically tune the network architecture and study its impact on doping efficiency and conductivity. We have proposed that π-face masking straps mask the π-face of the polymer backbone and therefore help to control π-π interchain interactions in higher dimensional π-conjugated materials unlike the conventional linear alkyl pendant solubilizing chains that are incapable of masking the π-face. Herein, we used cycloaraliphane-based π-face masking strapped monomers and show that the strapped repeat units, unlike the conventional monomers, help to overcome the strong interchain π-π interactions, extend network residence time, tune network growth, and increase chemical doping and conductivity in 3D-conjugated porous polymers.
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