340 results on '"L Cohen"'
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2. Establishing severity levels for patient-reported measures of functional communication, participation, and perceived cognitive function for adults with acquired cognitive and language disorders
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Matthew L. Cohen, Stacy M. Harnish, Alyssa M. Lanzi, Jennifer Brello, William D. Hula, David Victorson, Ratna Nandakumar, Pamela A. Kisala, and David S. Tulsky
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Public Health, Environmental and Occupational Health - Abstract
Purpose To empirically assign severity levels (e.g., mild, moderate) to four relatively new patient-reported outcome measures (PROMs) for adults with acquired cognitive/language disorders. They include the Communicative Participation Item Bank, the Aphasia Communication Outcome Measure, and Neuro-QoL’s item banks of Cognitive Function (v2.0) and Ability to Participate in Social Roles and Activities (v1.0). Method We conducted 17 focus groups that comprised 22 adults with an acquired cognitive/language disorder from stroke, Parkinson’s disease, or traumatic brain injury; 30 care partners of an adult with an acquired cognitive/language disorder; and 42 speech-language pathologists who had experience assessing/treating individuals with those and other cognitive/language disorders. In a small, moderated focus-group format, participants completed “PROM-bookmarking” procedures: They discussed hypothetical vignettes based on PROM item responses about people with cognitive/language disorders and had to reach consensus regarding whether their symptoms/function should be categorized as within normal limits or mild, moderate, or severe challenges. Results There was generally good agreement among the stakeholder groups about how to classify vignettes, particularly when they reflected very high or low functioning. People with aphasia described a larger range of functional communication challenges as “mild” compared to other stakeholder types. Based on a consensus across groups, we present severity levels for specific score ranges for each PROM. Conclusion Standardized, stakeholder-informed severity levels that aid interpretation of PROM scores can help clinicians and researchers derive better clinical meaning from those scores, for example, by identifying important clinical windows of opportunity and assessing when symptoms have returned to a “normal” range.
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- 2022
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3. Fetal imaging of congenital lung lesions with postnatal correlation
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Akosua Sintim-Damoa and Harris L. Cohen
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Pediatrics, Perinatology and Child Health ,Radiology, Nuclear Medicine and imaging - Published
- 2022
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4. Hypertension urgencies in the SPYRAL HTN-OFF MED Pivotal trial
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Michael A, Weber, Roland E, Schmieder, David E, Kandzari, Raymond R, Townsend, Felix, Mahfoud, Konstantinos, Tsioufis, Kazuomi, Kario, Stuart, Pocock, Fotis, Tatakis, Sebastian, Ewen, James W, Choi, Cara, East, David P, Lee, Adrian, Ma, Debbie L, Cohen, Robert, Wilensky, Chandan M, Devireddy, Janice P, Lea, Axel, Schmid, Martin, Fahy, and Michael, Böhm
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Treatment Outcome ,Hypertension ,Humans ,Blood Pressure ,General Medicine ,Sympathectomy ,Kidney ,Cardiology and Cardiovascular Medicine ,Antihypertensive Agents - Abstract
The SPYRAL HTN-OFF MED Pivotal trial (https://clinicaltrials.gov/ct2/show/NCT02439749) demonstrated significant reductions in blood pressure (BP) after renal denervation (RDN) compared to sham control in the absence of anti-hypertensive medications. Prior to the 3-month primary endpoint, medications were immediately reinstated for patients who met escape criteria defined as office systolic BP (SBP) ≥ 180 mmHg or other safety concerns. Our objective was to compare the rate of hypertensive urgencies in RDN vs. sham control patients. Patients were enrolled with office SBP ≥ 150 and p = 0.032), as well as for patients with a hypertensive urgency with office SBP ≥ 180 mmHg (p = 0.046). Rate of escape was similar between RDN and sham control for patients without a measured BP exceeding 180 mmHg (p = 0.32). In the SPYRAL HTN-OFF MED Pivotal trial, RDN patients were less likely to experience hypertensive urgencies that required immediate use of anti-hypertensive medications compared to sham control. Graphical abstract
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- 2022
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5. Crohn’s Disease Is Associated with Liver Fibrosis in Patients with Nonalcoholic Fatty Liver Disease
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Manik Aggarwal, Rajat Garg, Gopanandan Parthasarthy, Amy S. Nowacki, Ruthvik Padival, Arthur McCullough, Taha Qazi, Benjamin Click, Florian Rieder, and Benjamin L. Cohen
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Physiology ,Gastroenterology ,Article - Abstract
BACKGROUND: Chronic inflammation in IBD is postulated to drive NAFLD progression from steatosis to fibrosis. AIMS: To study the histopathological spectrum of NAFLD in Crohn disease (CD) and Ulcerative colitis (UC). METHODS: Patients with biopsy proven NAFLD at a quaternary center from 2008 to 2018 were included in this retrospective analysis. Inflammatory bowel disease (IBD) diagnosed either clinically and/or endoscopically at the time of liver biopsy. Multivariable regression and propensity score (PS) weighted analysis were conducted. Statistical analysis were performed using SAS statistical software. RESULTS: Among 1009 patients with NAFLD a diagnosis of IBD was identified in 50 cases (34 CD and 16 UC). On multivariable analysis; CD was independently associated with significantly higher odds of advanced fibrosis (AF) on liver biopsy (adjusted OR = 4.09, 95% CI = 1.40–11.94) compared to NAFLD patients without IBD. Similar results were obtained with both the overlap PS weighted model (OR = 3.17, 95% CI = 1.55–6.49) and the PS matched model (OR = 3.49, 95% CI = 1.50–8.13). CONCLUSION: In a large cohort of patients with histologically well characterized NAFLD, AF was more common in CD patients than NAFLD patients without IBD. These findings must be confirmed in a larger cohort, but suggest CD patients with NAFLD could be at greater risk for liver fibrosis.
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- 2022
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6. Brain lesions disrupting addiction map to a common human brain circuit
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Juho Joutsa, Khaled Moussawi, Shan H. Siddiqi, Amir Abdolahi, William Drew, Alexander L. Cohen, Thomas J. Ross, Harshawardhan U. Deshpande, Henry Z. Wang, Joel Bruss, Elliot A. Stein, Nora D. Volkow, Jordan H. Grafman, Edwin van Wijngaarden, Aaron D. Boes, and Michael D. Fox
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General Medicine ,General Biochemistry, Genetics and Molecular Biology - Abstract
Drug addiction is a public health crisis for which new treatments are urgently needed. In rare cases, regional brain damage can lead to addiction remission. These cases may be used to identify therapeutic targets for neuromodulation. We analyzed two cohorts of patients addicted to smoking at the time of focal brain damage (cohort 1 n = 67; cohort 2 n = 62). Lesion locations were mapped to a brain atlas and the brain network functionally connected to each lesion location was computed using human connectome data (n = 1,000). Associations with addiction remission were identified. Generalizability was assessed using an independent cohort of patients with focal brain damage and alcohol addiction risk scores (n = 186). Specificity was assessed through comparison to 37 other neuropsychological variables. Lesions disrupting smoking addiction occurred in many different brain locations but were characterized by a specific pattern of brain connectivity. This pattern involved positive connectivity to the dorsal cingulate, lateral prefrontal cortex, and insula and negative connectivity to the medial prefrontal and temporal cortex. This circuit was reproducible across independent lesion cohorts, associated with reduced alcohol addiction risk, and specific to addiction metrics. Hubs that best matched the connectivity profile for addiction remission were the paracingulate gyrus, left frontal operculum, and medial fronto-polar cortex. We conclude that brain lesions disrupting addiction map to a specific human brain circuit and that hubs in this circuit provide testable targets for therapeutic neuromodulation.
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- 2022
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7. A novel subtype of sporadic Creutzfeldt–Jakob disease with PRNP codon 129MM genotype and PrP plaques
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Rabeah Bayazid, Christina Orru’, Rabail Aslam, Yvonne Cohen, Amelia Silva-Rohwer, Seong-Ki Lee, Rossana Occhipinti, Qingzhong Kong, Shashirekha Shetty, Mark L. Cohen, Byron Caughey, Lawrence B. Schonberger, Brian S. Appleby, and Ignazio Cali
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Cellular and Molecular Neuroscience ,Neurology (clinical) ,Pathology and Forensic Medicine - Abstract
The presence of amyloid kuru plaques is a pathological hallmark of sporadic Creutzfeldt–Jakob disease (sCJD) of the MV2K subtype. Recently, PrP plaques (p) have been described in the white matter of a small group of CJD (p-CJD) cases with the 129MM genotype and carrying resPrPD type 1 (T1). Despite the different histopathological phenotype, the gel mobility and molecular features of p-CJD resPrPD T1 mimic those of sCJDMM1, the most common human prion disease. Here, we describe the clinical features, histopathology, and molecular properties of two distinct PrP plaque phenotypes affecting the gray matter (pGM) or the white matter (pWM) of sCJD cases with the PrP 129MM genotype (sCJDMM). Prevalence of pGM- and pWM-CJD proved comparable and was estimated to be ~ 0.6% among sporadic prion diseases and ~ 1.1% among the sCJDMM group. Mean age at onset (61 and 68 years) and disease duration (~ 7 months) of pWM- and pGM-CJD did not differ significantly. PrP plaques were mostly confined to the cerebellar cortex in pGM-CJD, but were ubiquitous in pWM-CJD. Typing of resPrPD T1 showed an unglycosylated fragment of ~ 20 kDa (T120) in pGM-CJD and sCJDMM1 patients, while a doublet of ~ 21–20 kDa (T121−20) was a molecular signature of pWM-CJD in subcortical regions. In addition, conformational characteristics of pWM-CJD resPrPD T1 differed from those of pGM-CJD and sCJDMM1. Inoculation of pWM-CJD and sCJDMM1 brain extracts to transgenic mice expressing human PrP reproduced the histotype with PrP plaques only in mice challenged with pWM-CJD. Furthermore, T120 of pWM-CJD, but not T121, was propagated in mice. These data suggest that T121 and T120 of pWM-CJD, and T120 of sCJDMM1 are distinct prion strains. Further studies are required to shed light on the etiology of p-CJD cases, particularly those of T120 of the novel pGM-CJD subtype.
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- 2023
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8. Effect of lethal total body irradiation on bone marrow chimerism, acute graft-versus-host disease, and tumor engraftment in mouse models: impact of different radiation techniques using low- and high-energy X-rays
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Nhu Hanh To, Caroline Pilon, Audrey Moatti, Anaïs Debesset, Kamel Debbi, Gabriele Coraggio, Wassim Ksouri, Virginie Massaria, José L. Cohen, Yazid Belkacemi, and Allan Thiolat
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Oncology ,Radiology, Nuclear Medicine and imaging - Published
- 2023
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9. Ulcerative colitis is characterized by a plasmablast-skewed humoral response associated with disease activity
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Mathieu Uzzan, Jerome C. Martin, Luka Mesin, Alexandra E. Livanos, Tomas Castro-Dopico, Ruiqi Huang, Francesca Petralia, Giuliana Magri, Shashi Kumar, Qing Zhao, Adam K. Rosenstein, Minami Tokuyama, Keshav Sharma, Ryan Ungaro, Roman Kosoy, Divya Jha, Jeremy Fischer, Harpriya Singh, Mary E. Keir, Nandhini Ramamoorthi, William E. O’Gorman, Benjamin L. Cohen, Adeeb Rahman, Francesca Cossarini, Akihiro Seki, Louise Leyre, Sonia Tejedor Vaquero, Sakteesh Gurunathan, Emilie K. Grasset, Bojan Losic, Marla Dubinsky, Alexander J. Greenstein, Zoe Gottlieb, Peter Legnani, James George, Haritz Irizar, Aleksandar Stojmirovic, Carrie Brodmerkel, Andrew Kasarkis, Bruce E. Sands, Glaucia Furtado, Sergio A. Lira, Zewen K. Tuong, Huaibin M. Ko, Andrea Cerutti, Charles O. Elson, Menna R. Clatworthy, Miriam Merad, Mayte Suárez-Fariñas, Carmen Argmann, Jason A. Hackney, Gabriel D. Victora, Gwendalyn J. Randolph, Ephraim Kenigsberg, Jean Frederic Colombel, and Saurabh Mehandru
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B-Lymphocytes ,Plasma Cells ,Humans ,Colitis, Ulcerative ,Lymphocyte Count ,T-Lymphocytes, Helper-Inducer ,General Medicine ,Intestinal Mucosa ,Article ,General Biochemistry, Genetics and Molecular Biology - Abstract
B cells, which are critical for intestinal homeostasis, remain understudied in ulcerative colitis (UC). In this study, we recruited three cohorts of patients with UC (primary cohort, n = 145; validation cohort 1, n = 664; and validation cohort 2, n = 143) to comprehensively define the landscape of B cells during UC-associated intestinal inflammation. Using single-cell RNA sequencing, single-cell IgH gene sequencing and protein-level validation, we mapped the compositional, transcriptional and clonotypic landscape of mucosal and circulating B cells. We found major perturbations within the mucosal B cell compartment, including an expansion of naive B cells and IgG(+) plasma cells with curtailed diversity and maturation. Furthermore, we isolated an auto-reactive plasma cell clone targeting integrin αvβ6 from inflamed UC intestines. We also identified a subset of intestinal CXCL13-expressing TFH-like T peripheral helper cells that were associated with the pathogenic B cell response. Finally, across all three cohorts, we confirmed that changes in intestinal humoral immunity are reflected in circulation by the expansion of gut-homing plasmablasts that correlates with disease activity and predicts disease complications. Our data demonstrate a highly dysregulated B cell response in UC and highlight a potential role of B cells in disease pathogenesis.
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- 2022
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10. Long-term visual outcomes after ruthenium plaque brachytherapy for posterior choroidal melanoma
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Roderick F. J. O’Day, Kelsey A. Roelofs, Guy S. Negretti, Gordon Hay, Amit K. Arora, Ian Stoker, Bertil E. Damato, Mandeep S. Sagoo, and Victoria M. L. Cohen
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Ophthalmology - Published
- 2022
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11. Effectiveness of a patient-centred sleep study report in the management of obstructive sleep apnoea
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Meera Srinivasan, Joseph M. Duncan, Michael W. O. Hibbert, David Joffe, Anna M. Mohammadieh, Gary L. Cohen, Peter A. Cistulli, and Andrew S. L. Chan
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Sleep Apnea, Obstructive ,Continuous Positive Airway Pressure ,Otorhinolaryngology ,Humans ,Patient Compliance ,Medicine ,Prospective Studies ,Neurology (clinical) ,Sleep - Abstract
Purpose Obstructive sleep apnoea (OSA) is a common condition with a range of short- and long-term health implications. Providing patient-centred care is a key principle to ensure patients are well informed and empowered to participate in clinical decision making. This study aimed to develop a patient-centred sleep study report for patients with obstructive sleep apnoea and to determine whether or not its implementation led to improved patient understanding of their disease. Methods The study was performed in two phases. The first phase utilised the Delphi-survey technique to develop and critically appraise a patient-centred sleep study report (PCSR) for patients with OSA, to accurately and simply convey key components of the patient’s diagnosis and management. The second phase was a prospective, randomised controlled trial to assess the effect of the PCSR on patient knowledge, self-efficacy, and understanding as measured through validated patient questionnaires. Results The PCSR was developed on key concepts deemed to be important by the surveyed physicians, senior sleep scientists and patients. This included ensuring the results were customised, highlighting the patient’s apnoea-hypopnea index, oxygen desaturation index and arousal index and limiting technical information to a few key pieces. Patients randomised to receive the PCSR had improved understanding and perceived patient-physician interaction compared to those randomised to standard care. Conclusion The development and implementation of the PCSR was feasible and improved patient understanding and perceived patient-physician interaction in patients with moderate to severe OSA. Whether or not use of the PCSR will translate to improved compliance with therapy will require further evaluation.
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- 2022
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12. Pseudopheochromocytoma: an Uncommon Cause of Severe Hypertension
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Christie G. Turin and Debbie L. Cohen
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Cardiology and Cardiovascular Medicine - Published
- 2022
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13. Examining the performance of transit systems in large US metropolitan areas
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Matan E. Singer, Aviv L. Cohen-Zada, and Karel Martens
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Transportation ,Development ,Civil and Structural Engineering - Published
- 2023
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14. Ethnic Differences in Clinical Presentations and Esophageal High-Resolution Manometry Findings in Patients with Achalasia
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Daniel L. Cohen, Basem Hijazi, Ali Omari, Anton Bermont, Haim Shirin, Helal Said Ahmad, Narjes Azzam, Fahmi Shibli, Ram Dickman, and Amir Mari
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Speech and Hearing ,Otorhinolaryngology ,Gastroenterology - Abstract
Ethnic differences in achalasia presentations have scarcely been described. The association between achalasia and immunologic HLA haplotypes suggests that there may be a genetic predisposition. We aimed to evaluate differences in demographic, clinical, endoscopic, and manometric findings between two distinct ethnic groups with achalasia-Israeli Arabs (IA) and Israeli Jews (IJ).A retrospective study was performed at two medical centers. High-resolution manometry (HRM) reports were reviewed for newly-diagnosed achalasia patients. Demographic data, clinical presentations, endoscopy reports, and HRM metrics including the integrated relaxation pressure (IRP) were all reviewed.Overall, 94 achalasia patients were included (53.2% male; mean age 54.5 ± 18.0). 43 patients were IA (45.7%). Body mass index (BMI) was similar in both groups. Compared to IJ, the IA patients had more esophageal dysphagia (100% vs. 88.2%; P = 0.022), chest pain (46.5% vs. 25.5%; P = 0.033), and a tortuous esophagus on endoscopy (23.3% vs. 3.9%; p = 0.005). IA patients were also diagnosed at a younger age than IJ patients (50.9 ± 17.5 vs. 57.5 ± 18.0; p = 0.039). Furthermore, IRP values were higher among IA patients than IJ patients (32.2 ± 13.8 vs. 23.3 ± 8.4; p 0.001). A regression model analysis found that ethnicity significantly predicted IRP (β = - 10, p .001).Ethnicity appears to affect achalasia clinical presentation and HRM findings. IA achalasia patients are diagnosed at a younger age, present with more severe esophageal symptoms, and have a higher IRP compared to IJ patients. Additional studies of diverse, multiethnic populations, especially with genetic evaluations, are required to further assess the role of ethnicity in achalasia.
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- 2023
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15. Palau’s warmest reefs harbor thermally tolerant corals that thrive across different habitats
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Hanny E. Rivera, Anne L. Cohen, Janelle R. Thompson, Iliana B. Baums, Michael D. Fox, and Kirstin S. Meyer-Kaiser
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Hot Temperature ,Palau ,Ctenophora ,Animals ,Medicine (miscellaneous) ,Anthozoa ,General Agricultural and Biological Sciences ,Ecosystem ,General Biochemistry, Genetics and Molecular Biology - Abstract
Ocean warming is killing corals, but heat-tolerant populations exist; if protected, they could replenish affected reefs naturally or through restoration. Palau’s Rock Islands experience consistently higher temperatures and extreme heatwaves, yet their diverse coral communities bleach less than those on Palau’s cooler outer reefs. Here, we combined genetic analyses, bleaching histories and growth rates ofPoritescf.lobatacolonies to identify thermally tolerant genotypes, map their distribution, and investigate potential growth trade-offs. We identified four genetic lineages ofP. cf.lobata. On Palau’s outer reefs, a thermally sensitive lineage dominates. The Rock Islands harbor two lineages with enhanced thermal tolerance; one of which shows no consistent growth trade-off and also occurs on several outer reefs. This suggests that the Rock Islands provide naturally tolerant larvae to neighboring areas. Finding and protecting such sources of thermally-tolerant corals is key to reef survival under 21stcentury climate change.
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- 2022
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16. Crystallographic and chemical signatures in coral skeletal aragonite
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Colleen M. Hansel, Jeffrey E. Post, Anne L. Cohen, Gabriela A. Farfan, Amy Apprill, Thomas M DeCarlo, and Rhian G. Waller
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geography ,geography.geographical_feature_category ,010504 meteorology & atmospheric sciences ,Chemistry ,Coral ,Aragonite ,Trace element ,Skeletal structures ,Coral reef ,Aquatic Science ,engineering.material ,010502 geochemistry & geophysics ,01 natural sciences ,Abiogenic petroleum origin ,Crystallography ,chemistry.chemical_compound ,engineering ,Carbonate ,14. Life underwater ,0105 earth and related environmental sciences - Abstract
Corals nucleate and grow aragonite crystals, organizing them into intricate skeletal structures that ultimately build the world’s coral reefs. Crystallography and chemistry have profound influence on the material properties of these skeletal building blocks, yet gaps remain in our knowledge about coral aragonite on the atomic scale. Across a broad diversity of shallow-water and deep-sea scleractinian corals from vastly different environments, coral aragonites are remarkably similar to one another, confirming that corals exert control on the carbonate chemistry of the calcifying space relative to the surrounding seawater. Nuances in coral aragonite structures relate most closely to trace element chemistry and aragonite saturation state, suggesting the primary controls on aragonite structure are ionic strength and trace element chemistry, with growth rate playing a secondary role. We also show how coral aragonites are crystallographically indistinguishable from synthetic abiogenic aragonite analogs precipitated from seawater under conditions mimicking coral calcifying fluid. In contrast, coral aragonites are distinct from geologically formed aragonites, a synthetic aragonite precipitated from a freshwater solution, and mollusk aragonites. Crystallographic signatures have future applications in understanding the material properties of coral aragonite and predicting the persistence of coral reefs in a rapidly changing ocean.
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- 2021
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17. Caregiver burden by treatment and clinical characteristics of patients with glioblastoma
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Phioanh L. Nghiemphu, D. Ryan Ormond, Adam L. Cohen, Diana I. Brixner, Katherine B. Peters, Nicole Willmarth, Beata Korytowsky, Prianka Singh, Connor Willis, Trang H. Au, Cornelia M. Ulrich, Alexandre H. Watanabe, Arnab Chakravarti, Jyothi Menon, Alexander Marshall, Hillevi Bauer, David D. Stenehjem, Junjie Ma, Jennie Taylor, Maija Reblin, and Howard Colman
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Adult ,Gerontology ,Aging ,Adolescent ,Caregiver Burden ,Disease ,GBM ,Medical and Health Sciences ,Rare Diseases ,Cost of Illness ,Cognitive dysfunction ,7.1 Individual care needs ,Quality of life ,Clinical Research ,Surveys and Questionnaires ,Behavioral and Social Science ,Patient experience ,Humans ,Medicine ,Oncology & Carcinogenesis ,Social determinants of health ,Cancer ,business.industry ,Nursing research ,Psychology and Cognitive Sciences ,Cognition ,Caregiver burden ,Caregiver ,Brain Disorders ,Brain Cancer ,Good Health and Well Being ,Caregivers ,Oncology ,Cohort ,Quality of Life ,Original Article ,Management of diseases and conditions ,Glioblastoma ,business - Abstract
Background Glioblastoma is an incurable disease with a poor prognosis. For caregivers of people with glioblastoma, the burden of care can be high. Patients often present with different clinical characteristics, which may impact caregiver burden in different ways. This study aimed to evaluate associations between patient clinical characteristics and caregiver burden/quality of life (QoL). Methods Caregiver–patient dyads were enrolled at 7 academic cancer centers in the United States. Eligible caregiver participants were self-reported as the primary caregiver of an adult living with glioblastoma and completed a caregiver burden survey. Eligible patients were age ≥ 18 years at glioblastoma diagnosis and alive when their respective caregiver entered the study, with the presence of cognitive dysfunction confirmed by the caregiver. Data were analyzed with descriptive statistics and multivariable analyses. Results The final cohort included 167 dyads. Poor patient performance status resulted in patient difficulty with mental tasks, more caregiving tasks, and increased caregiving time. Language problems were reported in patients with left-sided lesions. Patient confusion was negatively associated with all caregiver domains: emotional health, social health, general health, ability to work, confidence in finances, and overall QoL. Better caregiver QoL was observed in patients with frontal lobe lesions versus non-frontal lobe lesions. Conclusion This study reinforced that patient performance status is a critical clinical factor that significantly affects caregiver burden, caregiving tasks, and caregiver time. Additionally, patient confusion affects multiple facets of caregiver burden/QoL. These results could be used to support guided intervention for caregiver support, customized to the patient experience.
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- 2021
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18. Trends in the presentation of patients with esophageal diverticula in the era of endoscopy
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Ariel Krutouz, Daniel L. Cohen, Anton Bermont, and Haim Shirin
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Vascular surgery ,Asymptomatic ,Dysphagia ,Cardiac surgery ,Endoscopy ,Surgery ,Regurgitation (digestion) ,medicine ,Vomiting ,medicine.symptom ,business ,Abdominal surgery - Abstract
Esophageal diverticula (ED) mainly consist of epiphrenic (distal) and mid-esophageal diverticula. Most studies describing the presentation of these patients are older and reported a mean age of about 60. We sought to evaluate how two trends—the frequent use of endoscopy and increasing life expectancy—impact the presentation and evaluation of ED patients. Charts of ED patients at our facility between 2007 and 2020 were retrospectively reviewed. A total of 77 ED patients were identified (mean age 76.4 years; 58% female). 59 (77%) were initially diagnosed endoscopically, with an endoscopic prevalence of 0.295%. 44 (57%) were symptomatic at diagnosis, with the most common symptoms being dysphagia (84%) and vomiting/regurgitation (55%). Subjects diagnosed endoscopically were less likely to be symptomatic than those diagnosed radiographically (49% vs. 83%, p = 0.01). Of the 33 asymptomatic subjects, only 2 (6%) developed symptoms during a mean follow-up of 61 months. Six patients (8%) underwent esophageal manometry (all had a motility disorder); five (6%) underwent surgery. Age was not a predictor of the method of diagnosis or presence of symptoms. However, subjects ≥ 80 years old (34, 44%) were less likely to undergo manometry (0% vs. 16%, p = 0.031), with a trend towards being less likely to undergo surgery (0% vs. 14%, p = 0.063). Nowadays, the majority of ED are endoscopically diagnosed and these are less likely to be symptomatic than radiographically diagnosed ED. ED patients are older than previously reported and older patients are less likely to undergo esophageal manometry or surgery. Gastroenterologists and surgeons should be aware of these emerging trends.
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- 2021
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19. Health care providers’ knowledge of clinical protocols for postpartum hemorrhage care in Kenya: a cross-sectional study
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Junita Henry, Emma Clarke-Deelder, Dan Han, Nora Miller, Kennedy Opondo, Monica Oguttu, Thomas Burke, Jessica L. Cohen, and Margaret McConnell
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Male ,Cross-Sectional Studies ,Clinical Protocols ,Pregnancy ,Health Personnel ,Postpartum Hemorrhage ,Humans ,Obstetrics and Gynecology ,Female ,Kenya - Abstract
Background Postpartum hemorrhage (PPH) remains the leading cause of maternal death worldwide despite its often-preventable nature. Understanding health care providers’ knowledge of clinical protocols is imperative for improving quality of care and reducing mortality. This is especially pertinent in referral and teaching hospitals that train nursing and medical students and interns in addition to managing emergency and referral cases. Methods This study aimed to (1) measure health care providers’ knowledge of clinical protocols for risk assessment, prevention, and management of PPH in 3 referral hospitals in Kenya and (2) examine factors associated with providers’ knowledge. We developed a knowledge assessment tool based on past studies and clinical guidelines from the World Health Organization and the Kenyan Ministry of Health. We conducted in-person surveys with health care providers in three high-volume maternity facilities in Nairobi and western Kenya from October 2018-February 2019. We measured gaps in knowledge using a summative index and examined factors associated with knowledge (such as age, gender, qualification, experience, in-service training attendance, and a self-reported measure of peer-closeness) using linear regression. Results We interviewed 172 providers including consultants, medical officers, clinical officers, nurse-midwives, and students. Overall, knowledge was lowest for prevention-related protocols (an average of 0.71 out of 1.00; 95% CI 0.69–0.73) and highest for assessment-related protocols (0.81; 95% CI 0.79–0.83). Average knowledge scores did not differ significantly between qualified providers and students. Finally, we found that being a qualified nurse, having a specialization, being female, having a bachelor's degree and self-reported closer relationships with colleagues were statistically significantly associated with higher knowledge scores. Conclusion We found gaps in knowledge of PPH care clinical protocols in Kenya. There is a clear need for innovations in clinical training to ensure that providers in teaching referral hospitals are prepared to prevent, assess, and manage PPH. It is possible that training interventions focused on learning by doing and teamwork may be beneficial.
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- 2022
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20. Uterine rupture and factors associated with adverse outcomes
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Stefania K. Finnsdottir, Parmida Maghsoudlou, Kristen Pepin, Xiangmei Gu, Daniela A. Carusi, Jon I. Einarsson, and Sarah L. Cohen Rassier
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Obstetrics and Gynecology ,General Medicine - Published
- 2022
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21. Absence of long-term changes in urine biomarkers after AKI: findings from the CRIC study
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Ian E, McCoy, Jesse Y, Hsu, Joseph V, Bonventre, Chirag R, Parikh, Alan S, Go, Kathleen D, Liu, Ana C, Ricardo, Anand, Srivastava, Debbie L, Cohen, Jiang, He, Jing, Chen, Panduranga S, Rao, Anthony N, Muiru, and Chi-Yuan, Hsu
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Adult ,Kidney Disease ,Clinical Sciences ,Renal and urogenital ,Acute Kidney Injury ,Urology & Nephrology ,Kidney Function Tests ,Good Health and Well Being ,Clinical Research ,Nephrology ,Creatinine ,Chronic kidney disease ,Humans ,Renal Insufficiency ,Renal Insufficiency, Chronic ,Chronic ,Biomarkers - Abstract
Background Mechanisms by which AKI leads to CKD progression remain unclear. Several urine biomarkers have been identified as independent predictors of progressive CKD. It is unknown whether AKI may result in long-term changes in these urine biomarkers, which may mediate the effect of AKI on CKD progression. Methods We selected 198 episodes of hospitalized AKI (defined as peak/nadir inpatient serum creatinine values ≥ 1.5) among adult participants in the Chronic Renal Insufficiency Cohort (CRIC) Study. We matched the best non-AKI hospitalization (unique patients) for each AKI hospitalization using pre-hospitalization characteristics including eGFR and urine protein/creatinine ratio. Biomarkers were measured in banked urine samples collected at annual CRIC study visits. Results Urine biomarker measurements occurred a median of 7 months before and 5 months after hospitalization. There were no significant differences in the change in urine biomarker-to-creatinine ratio between the AKI and non-AKI groups: KIM-1/Cr + 9% vs + 7%, MCP-1/Cr + 4% vs + 1%, YKL-40/Cr + 7% vs -20%, EGF/Cr -11% vs -8%, UMOD/Cr -2% vs -7% and albumin/Cr + 17% vs + 13% (all p > 0.05). Conclusion In this cohort of adults with CKD, AKI did not associate with long-term changes in urine biomarkers.
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- 2022
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22. Hydrops fetalis—trends in associated diagnoses and mortality from 1997–2018
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Jennifer L. Cohen, Kaashif A. Ahmad, Bezalel Perelmuter, Joshua A. Frankfurt, R. Hunter Clark, Veeral N. Tolia, Reese H. Clark, and Matthew E. Abrams
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Pediatrics ,medicine.medical_specialty ,Heart disease ,business.industry ,Mortality rate ,Obstetrics and Gynecology ,Congenital diaphragmatic hernia ,medicine.disease ,Intensive care ,Hydrops fetalis ,Pediatrics, Perinatology and Child Health ,medicine ,Etiology ,Gestation ,business ,Atrial flutter - Abstract
Objectives To describe and evaluate trends in the etiology and mortality risk in neonates admitted for neonatal intensive care with hydrops fetalis. Study design A retrospective review of de-identified patient data in the Pediatrix Clinical Data Warehouse from 1997 to 2018. Results We identified 2144 infants diagnosed with hydrops fetalis. The most common diagnoses were congenital heart disease (n = 325, 15.2%), genetic diagnoses (n = 269, 12.5%) and cardiac arrhythmia (n = 176, 8.2%). Of 2144 neonates, 988 (46%) survived to hospital discharge and 775 (36%) died prior to discharge. Mortality rate was highly variable across diagnoses, ranging from 90% in infants with congenital diaphragmatic hernia to 0% in infants with atrial flutter. Over the study period, more infants were diagnosed with trisomies and fewer with twin-to-twin transfusion. Mortality decreased by 5% from 1997-2007 to 2008-2018. Conclusions The risk of death among neonates with hydrops fetalis is highly dependent on the underlying cause, with increasing risk of mortality at lower gestational ages.
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- 2021
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23. Maternal HIV Stigma and Child Adjustment: Qualitative and Quantitative Perspectives
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Lisa Armistead, Sae-Jin Kim, Debra A. Murphy, Marya T. Schulte, Lindsey L. Cohen, Nada M. Goodrum, and Abigail S. Robbertz
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Multilevel model ,Psychological intervention ,virus diseases ,Stigma (botany) ,Maternal hiv ,Affect (psychology) ,Childbearing age ,Developmental and Educational Psychology ,medicine ,Anxiety ,medicine.symptom ,Maternal anxiety ,Life-span and Life-course Studies ,Psychology ,Clinical psychology - Abstract
Globally, over 36 million people are living with HIV, and 51% are women, most of whom are of childbearing age. Children of mothers with HIV exhibit more adjustment problems than their demographically similar peers. Using mixed methods, this study examined associations between mothers’ HIV stigma and their children’s functioning. As part of a multi-site study in Georgia and California, participants included 181 HIV-positive mothers and one of their 6- to 14-year-old children. Mothers reported on children’s psychological adjustment, their own anxiety, and their perceived HIV stigma. Children reported on parent-child relationship quality. Following the quantitative portion of the study, 14 mothers and 13 children who knew their mothers were HIV positive completed in-depth qualitative interviews addressing the impact of HIV disclosure on family relationships. Hierarchical regression analyses found that parent-child relationship quality, maternal anxiety, and HIV stigma were significantly associated with child adjustment difficulties. HIV stigma predicted child adjustment problems after accounting for the role of parent-child relationship and maternal anxiety. Most mothers and some children in the qualitative portion of the study discussed the impact HIV stigma on their lives. In all, despite efforts to decrease HIV stigma, it continues to affect the lives of those with the virus and their families. Interventions, then, should not only focus on the parent-child relationship and maternal anxiety when attending to child functioning in families affected by HIV, but should also target coping skills for mitigating the impact of stigma while continuing efforts to reduce HIV-related stigma.
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- 2021
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24. External validation of the IMPROVE-DD risk assessment model for venous thromboembolism among inpatients with COVID-19
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Mark Goldin, Saurav Chatterjee, Stephanie K. Lin, Michael Qiu, Kevin Coppa, Dimitrios Giannis, Eugenia Gianos, Sheila Firoozan, Stuart L. Cohen, Thomas G. McGinn, Jamie S. Hirsch, Anise Diaz, Alex C. Spyropoulos, Sam Ngu, Safiya Richardson, Matthew A. Barish, and Nina Kohn
- Subjects
medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,030204 cardiovascular system & hematology ,Risk Assessment ,Article ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,IMPROVE-DD ,Internal medicine ,Humans ,Medicine ,cardiovascular diseases ,030212 general & internal medicine ,Retrospective Studies ,Inpatients ,Receiver operating characteristic ,business.industry ,Pulmonary embolism ,Area under the curve ,COVID-19 ,Retrospective cohort study ,Venous Thromboembolism ,Hematology ,equipment and supplies ,medicine.disease ,ROC curve ,Venous thrombosis ,Deep venous thrombosis ,New York City ,Cardiology and Cardiovascular Medicine ,business ,Risk assessment ,Venous thromboembolism - Abstract
There is a need to discriminate which COVID-19 inpatients are at higher risk for venous thromboembolism (VTE) to inform prophylaxis strategies. The IMPROVE-DD VTE risk assessment model (RAM) has previously demonstrated good discrimination in non-COVID populations. We aimed to externally validate the IMPROVE-DD VTE RAM in medical patients hospitalized with COVID-19. This retrospective cohort study evaluated the IMPROVE-DD VTE RAM in adult patients with COVID-19 admitted to one of thirteen Northwell Health hospitals in the New York metropolitan area between March 1, 2020 and April 27, 2020. VTE was defined as new-onset symptomatic deep venous thrombosis or pulmonary embolism. To assess the predictive value of the RAM, the receiver operating characteristic (ROC) curve was plotted and the area under the curve (AUC) was calculated. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated. Of 9407 patients who met study criteria, 274 patients developed VTE with a prevalence of 2.91%. The VTE rate was 0.41% for IMPROVE-DD score 0–1 (low risk), 1.21% for score 2–3 (moderate risk), and 5.30% for score ≥ 4 (high risk). Approximately 45.7% of patients were classified as high VTE risk, 33.3% moderate risk, and 21.0% low risk. Discrimination of low versus moderate-high VTE risk demonstrated sensitivity 0.971, specificity 0.215, PPV 0.036, and NPV 0.996. ROC AUC was 0.703. In this external validation study, the IMPROVE-DD VTE RAM demonstrated very good discrimination to identify hospitalized COVID-19 patients at low, moderate, and high VTE risk.
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- 2021
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25. Serial single-cell genomics reveals convergent subclonal evolution of resistance as patients with early-stage breast cancer progress on endocrine plus CDK4/6 therapy
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Anne O'Dea, Jinfeng Chen, Frederick R. Adler, Patrick A. Cosgrove, Andrea Bild, Jason I. Griffiths, Aditya Bardia, Ruth O'Regan, Meghna S. Trivedi, Cynthia X. Ma, Issam Makhoul, Qamar J. Khan, Laura Spring, Jeffrey T. Chang, Kevin Kalinsky, Adam L. Cohen, Priyanka Sharma, and Kari B. Wisinski
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Cancer Research ,Combination therapy ,medicine.drug_class ,business.industry ,Letrozole ,medicine.disease ,Somatic evolution in cancer ,Breast cancer ,Oncology ,Growth factor receptor ,Estrogen ,Cancer cell ,medicine ,Cancer research ,business ,CDK inhibitor ,medicine.drug - Abstract
Combining cyclin-dependent kinase (CDK) inhibitors with endocrine therapy improves outcomes for patients with metastatic estrogen receptor-positive breast cancer but its value in earlier-stage patients is unclear. We examined evolutionary trajectories of early-stage breast cancer tumors, using single-cell RNA sequencing of serial biopsies from the FELINE clinical trial of endocrine therapy (letrozole) alone or combined with the CDK inhibitor ribociclib. Despite differences in subclonal diversity evolution across patients and treatments, common resistance phenotypes emerged. Resistant tumors treated with combination therapy showed accelerated loss of estrogen signaling with convergent upregulation of JNK signaling through growth factor receptors. In contrast, cancer cells maintaining estrogen signaling during mono- or combination therapy showed potentiation of CDK4/6 activation and ERK upregulation through ERBB4 signaling. These results indicate that combination therapy in early-stage estrogen receptor-positive breast cancer leads to emergence of resistance through a shift from estrogen to alternative growth signal-mediated proliferation. Bild and colleagues identify convergent clonal evolution mechanisms through single-cell genomic analyses, explaining therapy resistance in patients with early-stage breast cancer treated with endocrine and CDK4/6 therapy in the FELINE trial.
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- 2021
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26. Linking herbivore monitoring with interpolation to map regional risk of pest species
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Abigail L Cohen, Carrie H. Wohleb, Vera W. Pfeiffer, David W. Crowder, and Javier Gutiérrez Illán
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0106 biological sciences ,Integrated pest management ,Herbivore ,business.industry ,Biology ,010603 evolutionary biology ,01 natural sciences ,Spearman's rank correlation coefficient ,010602 entomology ,Agriculture ,Abundance (ecology) ,Statistics ,PEST analysis ,business ,Scale (map) ,Agronomy and Crop Science ,Interpolation - Abstract
Long-term monitoring networks that generate data on pest abundance are the foundation of integrated pest management. Monitoring can estimate local risk from pests and identify when pests first arrive in particular fields. However, while data on pest abundance are collected for the purpose of making management decisions in individual fields, it is often unclear how such data can be used to make landscape scale predictions of risk from pests. We addressed this by using inverse-distance weighted interpolation models to generate predictions of abundance for multiple potato crop pests from long-term monitoring data. Specifically, we collected 30,999 abundance datapoints of four pests for 4 to 11 years and used interpolation to predict abundance of each pest across a 40,250 km2 area; these predictions were compared to observed pest data to validate our approach. We show predicted pest abundance was strongly and positively correlated with observed abundance for each of the four pests studied, with Spearman rank correlations from 0.5 to 0.8. Moreover, our interpolation approach was robust to variation in the type of monitoring data used, although interpolation parameters that produced the best fit to observed data differed slightly across species and ranged from 1 to 2. This suggests that variation in the biological traits of pests can affect interpolation models, and that models should be tailored to individual species. Overall, our study shows that interpolation is a powerful tool to integrate pest monitoring data into predictive maps that can guide management for crop pests across broad spatial scales.
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- 2021
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27. Uterine rupture and factors associated with adverse outcomes
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Finnsdottir, Stefania K., primary, Maghsoudlou, Parmida, additional, Pepin, Kristen, additional, Gu, Xiangmei, additional, Carusi, Daniela A., additional, Einarsson, Jon I., additional, and Rassier, Sarah L. Cohen, additional
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- 2022
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28. Contrast-enhanced ultrasound of the kidneys and adrenals in children
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Annamaria Deganello, Maciej Piskunowicz, Kassa Darge, Aikaterini Ntoulia, Harris L. Cohen, Harriet J. Paltiel, Susan J. Back, Zoltan Harkanyi, Damjana Ključevšek, Patricia T Acharya, and Richard D. Bellah
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Kidney ,medicine.medical_specialty ,business.industry ,Ultrasound ,Context (language use) ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Cystic lesion ,0302 clinical medicine ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,medicine ,Radiology, Nuclear Medicine and imaging ,Radiology ,Adrenal Hemorrhage ,business ,030217 neurology & neurosurgery ,Neuroradiology ,Contrast-enhanced ultrasound - Abstract
Pediatric applications of contrast-enhanced ultrasound (CEUS) are growing. Evaluation of the kidneys and adrenal glands in children using intravenous administration of US contrast agents, however, is still an off-label indication. Pediatric CEUS applications for kidneys are similar to those in adults, including ischemic disorders, pseudo- versus real tumors, indeterminate lesions, complex cystic lesions, complicated pyelonephritis, and abscesses. CEUS applications for evaluation of adrenal glands in children are limited, mainly focusing on the assessment and follow-up of adrenal trauma and the differentiation between an adrenal hemorrhage and a mass. This review addresses the current experience in pediatric CEUS of the kidneys and adrenal glands. By extrapolating the established knowledge for US contrast evaluations in the adult kidney to the pediatric context we can note opportunities for CEUS clinical use in children.
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- 2021
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29. ANETT: PhAse II trial of NEoadjuvant TAK-228 plus Tamoxifen in patients with hormone receptor-positive breast cancer
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Emre Koca, Virginia G. Kaklamani, Adam L. Cohen, Sindhu Nair, Jorge Darcourt, Asha Murthy, Anna Belcheva, Helen Wong, Toniva Boone, Joe Ensor, Pej Hemati, Polly A. Niravath, Wei Qian, Priya V. Ramshesh, Jing Zhao, Jenny C. Chang, Tejal Patel, and Xiaoxian Li
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0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,Receptor, ErbB-2 ,Nausea ,medicine.drug_class ,medicine.medical_treatment ,Breast Neoplasms ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,Nitriles ,medicine ,Clinical endpoint ,Humans ,Neoadjuvant therapy ,Benzoxazoles ,medicine.diagnostic_test ,business.industry ,Triazoles ,medicine.disease ,Hormones ,Neoadjuvant Therapy ,Tamoxifen ,Pyrimidines ,Treatment Outcome ,030104 developmental biology ,Receptors, Estrogen ,Estrogen ,030220 oncology & carcinogenesis ,Toxicity ,Female ,medicine.symptom ,Oncotype DX ,business ,medicine.drug - Abstract
Neoadjuvant endocrine therapy is often utilized to downstage Estrogen Receptor-positive (ER+) breast cancer prior to surgery. However, this approach is sometimes met with endocrine resistance mechanisms within the tumor. This trial examines the safety and efficacy of tamoxifen in combination with an mTORC1/2 inhibitor, TAK-228, in the neoadjuvant treatment of ER+ breast cancer. In this single-arm, open-label trial, pre- and post-menopausal women were enrolled to receive neoadjuvant tamoxifen (20 mg daily) with TAK-228 (30 mg weekly) for 16 weeks prior to surgery. Patient had tissue sampling at baseline, week 6, and week 16. The primary endpoint was change in Ki-67 from baseline to 6 weeks. The toxicity, change in tumor size, pathologic complete response rate, PEPI score, and baseline Oncotype Dx score were also assessed. Twenty-eight women were enrolled on the trial, and 25 completed the entire study course. The combination of tamoxifen and TAK-228 resulted in a significant reduction in Ki-67 from 18.3 to 15.2% (p = 0.0023). The drug was also found to be safe and tolerable. While nausea and hyperglycemia were common side effects, these were manageable. The tumor size also significantly decreased with the treatment, with a median decrease of 0.75 cm (p
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- 2021
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30. Face-Processing Performance is an Independent Predictor of Social Affect as Measured by the Autism Diagnostic Observation Schedule Across Large-Scale Datasets
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Alexander L. Cohen, Mallory R. Kroeck, Ivry Zagury-Orly, and Louis Soussand
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Autism Spectrum Disorder ,Affect (psychology) ,behavioral disciplines and activities ,Article ,Autism Diagnostic Observation Schedule ,Social Skills ,03 medical and health sciences ,0302 clinical medicine ,Social cognition ,Face perception ,mental disorders ,Covariate ,Developmental and Educational Psychology ,medicine ,Humans ,0501 psychology and cognitive sciences ,Autistic Disorder ,05 social sciences ,Recognition, Psychology ,medicine.disease ,Social relation ,Autism spectrum disorder ,Autism ,Psychology ,Facial Recognition ,030217 neurology & neurosurgery ,050104 developmental & child psychology ,Clinical psychology - Abstract
Face-processing deficits, while not required for the diagnosis of Autism Spectrum Disorder (ASD), have been associated with impaired social skills—a core feature of ASD; however, the strength and prevalence of this relationship remains unclear. Across 445 participants from the NIMH Data Archive, we examined the relationship between Benton Face Recognition Test (BFRT) performance and Autism Diagnostic Observation Schedule-Social Affect (ADOS-SA) scores. Lower BFRT scores (worse face-processing performance) were associated with higher ADOS-SA scores (higher ASD severity)–a relationship that held after controlling for other factors associated with face processing, i.e., age, sex, and IQ. These findings underscore the utility of face discrimination, not just recognition of facial emotion, as a key covariate for the severity of symptoms that characterize ASD.
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- 2021
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31. Incidence of Venous Thromboembolism and Mortality in Patients with Initial Presentation of COVID-19
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Saurav Chatterjee, Matthew A. Barish, Thomas McGinn, Martin Lesser, Dimitrios Giannis, Alex C. Spyropoulos, Nina Kohn, Mark Goldin, Stuart L. Cohen, Eugenia Gianos, Kevin Coppa, and Jamie S. Hirsch
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Male ,medicine.medical_specialty ,Deep vein ,New York ,030204 cardiovascular system & hematology ,Article ,law.invention ,Fibrin Fibrinogen Degradation Products ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,law ,Internal medicine ,medicine ,Humans ,cardiovascular diseases ,030212 general & internal medicine ,Mortality ,Retrospective Studies ,Venous Thrombosis ,SARS-CoV-2 ,business.industry ,Incidence ,Mortality rate ,Incidence (epidemiology) ,COVID-19 ,Outpatient ,Thrombosis ,Retrospective cohort study ,Hematology ,Middle Aged ,Protective Factors ,medicine.disease ,Intensive care unit ,Pulmonary embolism ,Intensive Care Units ,Venous thrombosis ,Outcome and Process Assessment, Health Care ,medicine.anatomical_structure ,Female ,Hydroxymethylglutaryl-CoA Reductase Inhibitors ,Pulmonary Embolism ,Cardiology and Cardiovascular Medicine ,business ,Platelet Aggregation Inhibitors ,Venous thromboembolism - Abstract
Venous thromboembolism (VTE) has emerged as an important issue in patients with COVID-19. The purpose of this study is to identify the incidence of VTE and mortality in COVID-19 patients initially presenting to a large health system. Our retrospective study included adult patients (excluding patients presenting with obstetric/gynecologic conditions) across a multihospital health system in the New York Metropolitan Region from March 1-April 27, 2020. VTE and mortality rates within 8 h of assessment were described. In 10,871 adults with COVID-19, 118 patients (1.09%) were diagnosed with symptomatic VTE (101 pulmonary embolism, 17 deep vein thrombosis events) and 28 patients (0.26%) died during initial assessment. Among these 146 patients, 64.4% were males, 56.8% were 60 years or older, 15.1% had a BMI > 35, and 11.6% were admitted to the intensive care unit. Comorbidities included hypertension (46.6%), diabetes (24.7%), hyperlipidemia (14.4%), chronic lung disease (12.3%), coronary artery disease (11.0%), and prior VTE (7.5%). Key medications included corticosteroids (22.6%), statins (21.2%), antiplatelets (20.6%), and anticoagulants (20.6%). Highest D-Dimer was greater than six times the upper limit of normal in 51.4%. Statin and antiplatelet use were associated with decreased VTE or mortality (each p
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- 2021
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32. Imaging strategies for safety surveillance after renal artery denervation
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Debbie L. Cohen, Sidney Cohen, Ido Weinberg, Alexandra Almonacid, Jeffrey J. Popma, Gail Hadley, Raymond R. Townsend, and Seth Uretsky
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Denervation ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Context (language use) ,General Medicine ,030204 cardiovascular system & hematology ,urologic and male genital diseases ,medicine.disease ,Renal artery stenosis ,Magnetic resonance angiography ,Clinical trial ,03 medical and health sciences ,Stenosis ,0302 clinical medicine ,medicine.artery ,Internal medicine ,Cardiology ,Medicine ,030212 general & internal medicine ,Renal artery ,Cardiology and Cardiovascular Medicine ,business ,Computed tomography angiography - Abstract
Renal denervation has emerged as a safe and effective therapy to lower blood pressure in hypertensive patients. In addition to the main renal arteries, branch vessels are also denervated in more contemporary studies. Accurate and reliable imaging in renal denervation patients is critical for long-term safety surveillance due to the small risk of renal artery stenosis that may occur after the procedure. This review summarizes three common non-invasive imaging modalities: Doppler ultrasound (DUS), computed tomography angiography (CTA), and magnetic resonance angiography (MRA). DUS is the most widely used owing to cost considerations, ease of use, and the fact that it is less invasive, avoids ionizing radiation exposure, and requires no contrast media use. Renal angiography is used to determine if renal artery stenosis is present when non-invasive imaging suggests renal artery stenosis. We compiled data from prior renal denervation studies as well as the more recent SPYRAL-HTN OFF MED Study and show that DUS demonstrates both high sensitivity and specificity for detecting renal stenosis de novo and in longitudinal assessment of renal artery patency after interventions. In the context of clinical trials DUS has been shown, together with the use of the baseline angiogram, to be effective in identifying stenosis in branch and accessory arteries and merits consideration as the main screening imaging modality to detect clinically significant renal artery stenosis after renal denervation and this is consistent with guidelines from the recent European Consensus Statement on Renal Denervation.
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- 2021
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33. The yield of CSF molecular testing in febrile neonates
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Yulia Shlonsky, Isaac Srugo, Jacob Genizi, Raeda Mubariki, Ellen Bamberger, Orit Golan-Shany, Sarah L. Cohen, and Basheer Nassrallah
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0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,business.industry ,030106 microbiology ,Human parechovirus ,General Medicine ,medicine.disease ,Gastroenterology ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,Medical microbiology ,Cerebrospinal fluid ,Internal medicine ,Multiplex polymerase chain reaction ,medicine ,Multiplex ,030212 general & internal medicine ,Pleocytosis ,business ,Meningitis - Abstract
We retrospectively examined the yield of a cerebrospinal fluid (CSF) multiplex real-time PCR assay of febrile young infants undergoing a full sepsis work-up. Eighty infants were included in the study: Forty-nine (61%) neonates and 31 (39%) 29–90 day-old patients were included in the study. A viral pathogen was detected in 59% (47/80) of the samples, human enterovirus in 53% (42/80) and Human parechovirus in 6% (5/80). The CSF of nearly half of the subjects with CNS infection was without pleocytosis; all CSF cultures were negative. Multiplex PCR CSF testing enhances the diagnosis of pathogen-specific viral CNS infection among febrile young infants.
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- 2021
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34. The natural history of conjunctival naevi in children and adolescents
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Victoria M L Cohen, Sahar Parvizi, Mandeep S. Sagoo, Guy S. Negretti, Kelsey A. Roelofs, and Bertil Damato
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Adult ,medicine.medical_specialty ,Skin Neoplasms ,Adolescent ,Conjunctival Neoplasms ,Article ,Eye cancer ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Interquartile range ,Biopsy ,medicine ,Humans ,Eye manifestations ,Child ,Melanoma ,Nevus, Pigmented ,medicine.diagnostic_test ,business.industry ,Outcome measures ,Mean age ,Dermatology ,Adolescent population ,Ocular oncology ,Natural history ,Ophthalmology ,030221 ophthalmology & optometry ,business ,Conjunctiva ,Conjunctival Melanoma ,030217 neurology & neurosurgery - Abstract
Objective The objective of this study is to characterise the natural history of conjunctival naevi in a paediatric and adolescent population. Methods All children and adolescents referred to Moorfields Ocular Oncology Service for evaluation between January 2015 and 2020 were included. Exclusion criteria included age >20 years old and lack of anterior segment photographs. A total of 77 patients were included with a mean age of 12 years (standard deviation: 3.9; range, 4-20). The main outcome measures were: number of conjunctival naevi that grew, changed in pigmentation, required excisional biopsy, or were histologically malignant. If there was growth, the percentage increase in size was measured. Results At their first visit, 13% of patients (10/77) were discharged to local follow-up and 10% (8/77) proceeded to excisional biopsy, four further patients underwent excisional biopsy after a period of follow-up. On histopathological assessment, 92% (11/12) of lesions were benign conjunctival naevi. One patient, who had suspicious clinical features at presentation, had conjunctival melanoma. Fifty-nine patients were followed over a median of 1.1 years (interquartile range: 1.54; range, 3 months to 4 years). Eight per cent (5/59) of conjunctival naevi enlarged in diameter by a mean percentage increase in size of 2%, whereas 5% (3/59) showed increased pigmentation and 8.5% (5/59) showed decreased pigmentation. Conclusions Growth of conjunctival naevi in children is infrequent (8%) and the large majority of those excised are benign. Because of a lack of evidence, these patients are often followed for years in ophthalmic practice. This series demonstrates that prolonged follow-up may not be necessary.
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- 2020
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35. Diet and prey selectivity of the mesopelagic lanternfish Myctophum asperum from the Perth Canyon, Western Australia
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Lynnath E. Beckley and Daniel L. Cohen
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0106 biological sciences ,Canyon ,geography ,geography.geographical_feature_category ,biology ,Mesopelagic zone ,Zoology ,Pelagic zone ,04 agricultural and veterinary sciences ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Zooplankton ,Food web ,Predation ,Lanternfish ,Myctophum asperum ,040102 fisheries ,0401 agriculture, forestry, and fisheries ,Ecology, Evolution, Behavior and Systematics - Abstract
The diet and prey selectivity of Myctophum asperum were examined from the Perth Canyon (Western Australia). Calanoid copepods were consumed by 83% of the M. asperum examined and constituted 39% of the total number of prey items. Larger adult euphausiids were consumed by 48% of M. asperum and constituted 15% of the total number of prey items. Prey selectivity was assessed using Chesson’s Index and calanoids were not positively selected with M. asperum showing a preference for euphausiids and neutrally selecting most other zooplankton. This study contributes to understanding of the pelagic food web of the Perth Canyon Marine Park.
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- 2020
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36. The Effect of Hospital Volume on Outcomes of Patients with Occult Breast Cancer
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Camille Baumrucker, Francis I. Macedo, Janelle Cheri Millen, Brianna L. Cohen, Dido Franceschi, and Samantha Spring
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Oncology ,medicine.medical_specialty ,Chemotherapy ,business.industry ,medicine.medical_treatment ,Cancer ,Modified Radical Mastectomy ,medicine.disease ,Occult ,Radiation therapy ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Surgical oncology ,030220 oncology & carcinogenesis ,Internal medicine ,medicine ,030211 gastroenterology & hepatology ,Surgery ,business ,Mastectomy - Abstract
With limited data in regards to management, occult breast cancer (OBC) poses a challenging surgical scenario. Current surgical management includes axillary lymphadenectomy (ALND) with or without mastectomy. We sought to investigate the impact of hospital volume on surgical approach and survival outcomes of patients with OBC. Patients with cT0N+ breast cancer were selected from the National Cancer Data Base (NCDB, 2004–2014). Primary outcome was overall survival (OS), calculated using Kaplan–Meier methods compared according to hospital volume: community cancer center (CC), comprehensive community cancer center (COMP), and academic center (AC). Secondary outcome was the rate of modified radical mastectomy (MRM). We identified 574 patients with OBC, 11.1% were treated at a CC, 51.8% at a COMP, and 37.0% at an AC. Patients treated at CC had lower socioeconomic status compared with COMP or AC (23.1%, 14.1%, 19.3%; p = 0.005, respectively). There was no difference in access to radiation therapy (p = 0.888) or neoadjuvant chemotherapy (p = 0.221). Patients treated at CC had worse OS compared with COMP or AC (87.04, 105.29, 108.06 mo, p = 0.026, respectively). There was an increased rate of MRM at CC compared with COMP or AC (54.7%, 41.2%, 30.5%, p = 0.003, respectively). A direct association seems to exist between hospital volume and outcomes of patients with OBC. Patients with OBC treated at AC were more likely to undergo breast-conserving approaches and had better survival than those treated at CC.
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- 2020
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37. Virtual endoluminal aortic root views determined at coronary CT angiography — an important tool for improving anomalous coronary artery visualization and surgical planning
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Harris L. Cohen, Christopher J. Knott-Craig, Sandeep Sainathan, Umar Boston, and Vijetha V Maller
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medicine.medical_specialty ,business.industry ,Aortic root ,Coronary ct angiography ,medicine.disease ,Surgical planning ,030218 nuclear medicine & medical imaging ,Sudden cardiac death ,Coronary arteries ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,Anomalous coronary artery ,medicine ,Radiology, Nuclear Medicine and imaging ,Radiology ,business ,030217 neurology & neurosurgery ,Neuroradiology ,Artery - Abstract
Anomalous origin of the coronary arteries, though uncommon, is of great clinical concern. It can be the cause of sudden cardiac death and abnormal cardiac hemodynamics. Advances in electrocardiographically (ECG)-gated multi-detector CT have increased diagnostic accuracy in detecting anomalous origin of coronary arteries and their interarterial and intramural courses. Recent advances in multi-detector CT image processing software have allowed the creation of virtual endoluminal views of the aortic root and improved assessment of the intramural course (the length and relationship to the intercoronary commissure) of the coronary artery, which is of considerable surgical importance. We review our experience with virtual endoluminal imaging in our first 19 cases of interarterial coronary artery anomalies (17 cases of interarterial with intramural segment and 2 cases of purely interarterial course) diagnosed preoperatively and proven surgically.
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- 2020
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38. Key competencies in sustainability in higher education—toward an agreed-upon reference framework
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Matthias Barth, Roderic A. Parnell, Weston Dripps, Marco Rieckmann, Liliana Diaz, Geoffrey Habron, Kealalokahi Losch, Jessica Ostrow Michel, Meghann Jarchow, Michaela Zint, Matthew L. Cohen, Peter Walker, Yoko Mochizuki, Gisela Cebrián, Niki Harré, Sonya Doucette-Remington, and Katja Brundiers
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key competencies ,curriculum development ,Health (social science) ,010504 meteorology & atmospheric sciences ,Sociology and Political Science ,Higher education ,Geography, Planning and Development ,Delphi method ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Employability ,Sustainability Science ,01 natural sciences ,Curriculum development ,Sociology ,0105 earth and related environmental sciences ,Nature and Landscape Conservation ,Sustainable development ,Global and Planetary Change ,Hierarchy ,Ecology ,business.industry ,education for sustainable development ,Public relations ,Education for sustainable development ,learning objectives ,Sustainability education ,sustainability problem solving ,Sustainability ,business - Abstract
Hundreds of sustainability programs have emerged at universities and colleges around the world over the past 2 decades. A prime question for employers, students, educators, and program administrators is what competencies these programs develop in students. This study explores convergence on competencies for sustainability programs. We conducted a Delphi study with 14 international experts in sustainability education on the framework of key competencies in sustainability by Wiek et al. (Sustain Sci 6: 203–218, 2011), the most frequently cited framework to date. While experts generally agreed with the framework, they propose two additional competencies, suggest a hierarchy of competencies, and specify learning objectives for students interested in a career as sustainability researcher. The refined framework can inform program development, implementation, and evaluation to enhance employability of graduates and facilitate comparison of sustainability programs worldwide.
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- 2020
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39. sdtlu: An R package for the signal detection analysis of eyewitness lineup data
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Andrew L. Cohen, Jeffrey J. Starns, and Caren M. Rotello
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Receiver operating characteristic ,Bootstrapping ,Computer science ,05 social sciences ,Monte Carlo method ,Experimental and Cognitive Psychology ,Commit ,computer.software_genre ,050105 experimental psychology ,Set (abstract data type) ,Data set ,03 medical and health sciences ,0302 clinical medicine ,Arts and Humanities (miscellaneous) ,Developmental and Educational Psychology ,0501 psychology and cognitive sciences ,Detection theory ,Psychology (miscellaneous) ,Data mining ,Suspect ,computer ,030217 neurology & neurosurgery ,General Psychology - Abstract
In a standard eyewitness lineup scenario, a witness observes a culprit commit a crime and is later asked to identify the culprit from a set of faces, the lineup. Signal detection theory (SDT), a powerful modeling framework for analyzing data, has recently become a common way to analyze lineup data. The goal of this paper is to introduce a new R package, sdtlu (Signal Detection Theory – LineUp), that streamlines and automates the SDT analysis of lineup data. sdtlu provides functions to process lineup data, determine the best-fitting SDT parameters, compute model-based performance measures such as area under the curve (AUC) and diagnosticity, use bootstrapping to determine uncertainty intervals around these parameters and measures, and compare parameters across two different data sets. The package incorporates closed-form solutions for both simultaneous and sequential lineups that allow for model-based analyses without Monte Carlo simulation. Show-ups are also supported. The package can estimate the base-rate of lineups that include a guilty suspect when the guilt or innocence of each suspect in the data set is unknown, as in “real-world” lineups. The package can also produce a full set of graphs, including data and model-based ROC curves and the underlying SDT model.
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- 2020
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40. Circumscribed choroidal haemangioma: Indocyanine green angiography features on scanning laser ophthalmoscopy versus traditional digital fundus photography
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Kelsey A. Roelofs, Roderick O'Day, Mandeep S. Sagoo, Gordon Hay, Amit K. Arora, Victoria M L Cohen, and David I. T. Sia
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Indocyanine Green ,medicine.medical_specialty ,genetic structures ,Fundus Oculi ,Indocyanine green angiography ,Choroidal haemangioma ,Diagnostic accuracy ,Article ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,Photography ,medicine ,Humans ,Fluorescein Angiography ,medicine.diagnostic_test ,Choroid ,business.industry ,Lasers ,Fundus photography ,eye diseases ,Scanning laser ophthalmoscopy ,Ophthalmoscopy ,030221 ophthalmology & optometry ,sense organs ,Hemangioma ,business ,030217 neurology & neurosurgery - Abstract
BACKGROUND AND OBJECTIVE: Circumscribed choroidal haemangioma (CCH) has several characteristic clinical and angiographic features. We aimed to compare indocyanine green angiography (ICG) findings of CCH captured on a traditional digital camera system (DCS) to newer scanning laser ophthalmoscopy (SLO) platforms. STUDY DESIGN/MATERIALS AND METHODS: A total of 35 patients over a 10-year period diagnosed with CCH using ICG were included (18 imaged with DCS and 17 with SLO). RESULTS: On early ICG frames, intrinsic vessels were apparent in two-thirds (12/18; 67%) of the DCS group compared with all of eyes in the SLO group (p = 0.020). In addition, at maximal hyperfluorescence, most eyes imaged with DCS had a feathery appearance (16/18; 89%) compared with those in the SLO group which all (17/17; 100%) displayed a granular appearance (p 30 min) without compromising diagnostic accuracy.
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- 2020
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41. Prion propagation estimated from brain diffusion MRI is subtype dependent in sporadic Creutzfeldt–Jakob disease
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Sara Garbarino, Janis Blevins, Alberto Bizzi, Mark L. Cohen, Lawrence B. Schonberger, Riccardo Pascuzzo, Pierluigi Gambetti, Alexandra L. Young, Neil P. Oxtoby, Brian S. Appleby, Gianmarco Castelli, and Daniel C. Alexander
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Adult ,Male ,0301 basic medicine ,Pathology ,medicine.medical_specialty ,Prion disease ,Creutzfeldt–Jakob disease ,Precuneus ,Prion propagation ,Spongiform degeneration ,Creutzfeldt-Jakob Syndrome ,Prion Proteins ,Pathology and Forensic Medicine ,Lesion ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,Magnetic resonance imaging ,0302 clinical medicine ,medicine ,Humans ,Aged ,Original Paper ,Disease progression ,Neocortex ,medicine.diagnostic_test ,business.industry ,Sporadic Creutzfeldt-Jakob disease ,Middle Aged ,Diffusion Magnetic Resonance Imaging ,Early Diagnosis ,030104 developmental biology ,medicine.anatomical_structure ,Female ,Epicentre ,Neurology (clinical) ,Abnormality ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Diffusion MRI - Abstract
Sporadic Creutzfeldt–Jakob disease (sCJD) is a transmissible brain proteinopathy. Five main clinicopathological subtypes (sCJD-MM(V)1, -MM(V)2C, -MV2K, -VV1, and -VV2) are currently distinguished. Histopathological evidence suggests that the localisation of prion aggregates and spongiform lesions varies among subtypes. Establishing whether there is an initial site with detectable imaging abnormalities (epicentre) and an order of lesion propagation would be informative for disease early diagnosis, patient staging, management and recruitment in clinical trials. Diffusion magnetic resonance imaging (MRI) is the most-used and most-sensitive test to detect spongiform degeneration. This study was designed to identify, in vivo and for the first time, subtype-dependent epicentre and lesion propagation in the brain using diffusion-weighted images (DWI), in the largest known cross-sectional dataset of autopsy-proven subjects with sCJD. We estimate lesion propagation by cross-sectional DWI using event-based modelling, a well-established data-driven technique. DWI abnormalities of 594 autopsy-diagnosed subjects (448 patients with sCJD) were scored in 12 brain regions by 1 neuroradiologist blind to the diagnosis. We used the event-based model to reconstruct sequential orderings of lesion propagation in each of five pure subtypes. Follow-up data from 151 patients validated the estimated sequences. Results showed that epicentre and ordering of lesion propagation are subtype specific. The two most common subtypes (-MM1 and -VV2) showed opposite ordering of DWI abnormality appearance: from the neocortex to subcortical regions, and vice versa, respectively. The precuneus was the most likely epicentre also in -MM2 and -VV1 although at variance with -MM1, abnormal signal was also detected early in cingulate and insular cortices. The caudal-rostral sequence of lesion propagation that characterises -VV2 was replicated in -MV2K. Combined, these data-driven models provide unprecedented dynamic insights into subtype-specific epicentre at onset and propagation of the pathologic process, which may also enhance early diagnosis and enable disease staging in sCJD.
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- 2020
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42. Repeat radiation with bevacizumab and minocycline in bevacizumab-refractory high grade gliomas: a prospective phase 1 trial
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Brett Johnson, Kenneth M. Boucher, Lindsay M. Burt, Dennis C. Shrieve, Howard Colman, Christopher J. Anker, Karen L. Salzman, Randy L. Jensen, and Adam L. Cohen
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Adult ,Male ,Oncology ,Cancer Research ,medicine.medical_specialty ,Bevacizumab ,Minocycline ,Refractory ,Glioma ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Prospective Studies ,Dosing ,Radiation oncologist ,Aged ,Reirradiation ,Temozolomide ,Brain Neoplasms ,business.industry ,Chemoradiotherapy ,Middle Aged ,medicine.disease ,Survival Rate ,Neurology ,Drug Resistance, Neoplasm ,Tumor progression ,Retreatment ,Clinical Study ,Female ,Neurology (clinical) ,Neoplasm Grading ,business ,Follow-Up Studies ,medicine.drug - Abstract
Introduction There are no effective treatments for gliomas after progression on radiation, temozolomide, and bevacizumab. Microglia activation may be involved in radiation resistance and can be inhibited by the brain penetrating antibiotic minocycline. In this phase 1 trial, we examined the safety and effect on survival, symptom burden, and neurocognitive function of reirradiation, minocycline, and bevacizumab. Methods The trial used a 3 + 3 design for dose escalation followed by a ten person dose expansion. Patients received reirradiation with dosing based on radiation oncologist judgment, bevacizumab 10 mg/kg IV every two weeks, and oral minocycline twice a day. Symptom burden was measured using MDASI-BT. Neurocognitive function was measured using the COGSTATE battery. Results The maximum tolerated dose of minocycline was 400 mg twice a day with no unexpected toxicities. The PFS3 was 64.6%, and median overall survival was 6.4 months. Symptom burden and neurocognitive function did not decline in the interval between treatment completion and tumor progression. Conclusions Minocycline 400 mg orally twice a day with bevacizumab and reirradiation is well tolerated by physician and patient reported outcomes in people with gliomas that progress on bevacizumab.
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- 2020
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43. Ultra-wide-field imaging assessment of small choroidal pigmented lesions using red and green colour channels
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Konstantinos Balaskas, Zaria Ali, Rana'a T. Al-Jamal, Mandeep S. Sagoo, Victoria M L Cohen, Jane Gray, and Vasilios P. Papastefanou
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Lesion type ,Choroidal melanoma ,Pathology ,medicine.medical_specialty ,Skin Neoplasms ,genetic structures ,Color ,Early detection ,Article ,Lipofuscin ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Retrospective Studies ,Green colour ,business.industry ,Choroid Neoplasms ,Ophthalmology ,Cross-Sectional Studies ,030221 ophthalmology & optometry ,Ultra wide field ,sense organs ,Subretinal fluid ,business ,030217 neurology & neurosurgery - Abstract
BACKGROUND: Diagnosis of small choroidal melanoma is mainly based on tumour thickness, subretinal fluid, or lipofuscin pigment. Ultra-wide-field imaging (UWF) allows depiction of choroidal lesions through a red (RC) and a green channel (GC). Aim of the study was to determine the utility of this tool in the detection of small choroidal melanoma. METHODS: Retrospective cross-sectional study of patients with small choroidal pigmented lesions up to 3 mm in thickness. All patients underwent clinical and imaging assessment including UWF. Lesions were subcategorized based on thickness and lesion type. A qualitative assessment ensued using the red and green channels feature. RESULTS: A total of 152 patients were included. Melanotic naevi (76/152,50%) and small choroidal melanomas (55/152,36%) were the predominant types. Thickness was
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- 2020
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44. Diagnosing and treating native spinal and pelvic osteomyelitis in adolescents
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Brian D. Snyder, John B. Emans, M. Timothy Hresko, Daniel J. Hedequist, Lawrence I. Karlin, Lara L Cohen, Kathryn A. Williams, Michael P. Glotzbecker, and Benjamin J. Shore
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Male ,medicine.medical_specialty ,Adolescent ,medicine.drug_class ,Biopsy, Fine-Needle ,Population ,Antibiotics ,Sensitivity and Specificity ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Back pain ,Humans ,Orthopedics and Sports Medicine ,Medical diagnosis ,Child ,education ,Retrospective Studies ,030222 orthopedics ,education.field_of_study ,Lumbar Vertebrae ,medicine.diagnostic_test ,business.industry ,Osteomyelitis ,Chronic recurrent multifocal osteomyelitis ,Infant ,Magnetic resonance imaging ,Staphylococcal Infections ,medicine.disease ,Magnetic Resonance Imaging ,Surgery ,Blood Culture ,Child, Preschool ,Orthopedic surgery ,Female ,Spinal Diseases ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Pelvic Inflammatory Disease - Abstract
Retrospective case series. To describe how pediatric patients with spinal and pelvic osteomyelitis are diagnosed and treated and assess the diagnostic value of magnetic resonance imaging (MRI), needle aspiration biopsy (NAB), and blood cultures in this population. Spinal and pelvic osteomyelitis de novo are uncommon in children and minimal literature exists on the subject. Research has shown that NAB and blood cultures have variable diagnostic yield in adult native osteomyelitis. At our institution, there is no standard protocol for diagnosing and treating pediatric spinal and pelvic osteomyelitis de novo. All diagnoses of spinal and pelvic osteomyelitis at a pediatric tertiary care center from 2003 to 2017 were reviewed. Patients aged 0–21 at diagnosis were included. Patients with osteomyelitis resulting from prior spinal operations, wounds, or infections and those with chronic recurrent multifocal osteomyelitis were eliminated. All eligible patients’ diagnoses were confirmed by MRI. 29 patients (18 men, 11 women) met the inclusion criteria. The median age at diagnosis was 11 years old (range 1–18). More than half of all cases (17/29, 59%) affected the lumbar spine. The most common symptoms were back pain (20/29, 69%), fever (18/29, 62%), hip pain (11/29, 38%), and leg pain (8/29, 28%). The majority of NABs and blood cultures performed were negative, but of the positive tests Staphylococcus aureus was the most prevalent bacteria. 86% (25/29) had an MRI before a diagnosis was made and 72% (13/18) had an NAB performed post-diagnosis. MRI is a popular and helpful tool in diagnosing spinal osteomyelitis de novo. NAB cultures are often negative but can be useful in determining antibiotic treatment. Level IV.
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- 2020
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45. Modeling Preference Reversals in Context Effects over Time
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Andrew L. Cohen and Andrea M. Cataldo
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Range (mathematics) ,Neuropsychology and Physiological Psychology ,Context effect ,Computer science ,Consumer choice ,Crossover ,Similarity (psychology) ,Developmental and Educational Psychology ,Response time ,Context (language use) ,Preference (economics) ,Cognitive psychology - Abstract
Context effects constitute benchmark behavioral phenomena for theories of choice. Previous research using signal-to-respond paradigms suggests that these phenomena develop differentially over time. Importantly, however, such time pressure manipulations correspond to an externally controlled stopping rule, which may produce different behavior compared to an internally controlled stopping rule. The first goal of this work was to examine context effects as a function of internally controlled response time. Across eight data sets, we find a consistent crossover pattern such that the attraction and compromise effects are associated with slower response times and the similarity effect is associated with faster response times. The second goal is to utilize state-of-the-art methodology (Evans et al. in Psychonomic Bulletin & Review, 26, 1–33, 2019; Turner and Sederberg in Psychonomic Bulletin & Review, 21(2), 227–250, 2014) to determine whether four information-accumulation models (MDFT, the LCA, the AAM, and the MLBA) can correctly capture the direction in which preference evolves over time in each context when fit to joint choice and response time data with an internal stopping rule. Whereas the MLBA best fit the means, and MDFT and the AAM partially captured the qualitative patterns, none of the models captured the full spectrum of results. Despite a strong historical trend for empirical work in consumer choice, recent response time modeling has focused on fundamentally different non-consumer tasks. The third goal is to generalize that modeling to the consumer choice domain, providing a bridge to a wide range of prior work. The present work provides new insights into the relationship between choice and response times and sets important constraints for models that seek to account for such behavior.
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- 2020
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46. Adverse events associated with JAK inhibitors in 126,815 reports from the WHO pharmacovigilance database
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Léa, Hoisnard, Bénédicte, Lebrun-Vignes, Sébastien, Maury, Matthieu, Mahevas, Khalil, El Karoui, Lydia, Roy, Anissa, Zarour, Marc, Michel, José L, Cohen, Aurélien, Amiot, Pascal, Claudepierre, Pierre, Wolkenstein, Philippe, Grimbert, and Emilie, Sbidian
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Pharmacovigilance ,Multidisciplinary ,Databases, Factual ,Humans ,Janus Kinase Inhibitors ,World Health Organization ,Autoimmune Diseases - Abstract
Increasing number of Janus kinase (JAK) inhibitors have been approved for chronic haematopoietic neoplasms and inflammatory/autoimmune diseases. We aimed to assess safety of the first three approved JAK inhibitors: ruxolitinib, tofacitinib and baricitinib. In this retrospective observational study, pharmacovigilance data were extracted from the World Health Organization database. Adverse events are classified according to Medical Dictionary for Regulatory Activities hierarchy. Until February 28, 2021, all Individual Case Safety Reports [ICSRs] with the suspected drug ruxolitinib, tofacitinib or baricitinib were included. Disproportionality analysis was performed and the information component (IC) was estimated. Adverse events were considered a significant signal if the lower end of the 95% credibility interval of the IC (IC025) was positive. We identified 126,815 ICSRs involving JAK inhibitors. Ruxolitinib, tofacitinib and baricitinib were associated with infectious adverse events (IC025 1.7, especially with viral [herpes and influenza], fungal, and mycobacterial infectious disorders); musculoskeletal and connective tissue disorders (IC025 1.1); embolism and thrombosis (IC025 0.4); and neoplasms (IC025 0.8, especially malignant skin neoplasms). Tofacitinib was associated with gastrointestinal perforation events (IC025 1.5). We did not find a significant increase in the reporting of major cardiovascular events. We identified significant association between adverse events and ruxolitinib, tofacinitib and baricitinib in international pharmacovigilance database.
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- 2022
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47. Rare Cause of Acute Esophageal Symptoms
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Haim Shirin, Daniel L. Cohen, and Anton Bermont
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Speech and Hearing ,medicine.medical_specialty ,Esophagus ,Otorhinolaryngology ,business.industry ,Internal medicine ,Gastroenterology ,medicine ,Humans ,Hepatology ,business ,Dermatology - Published
- 2021
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48. The Effect of Behavioral Changes on the Treatment of Hypertension
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Debbie L. Cohen and Liann Abu Salman
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Blood pressure control ,medicine.medical_specialty ,Relaxation (psychology) ,business.industry ,medicine.medical_treatment ,Biofeedback ,Premature death ,Weight loss ,Internal Medicine ,Breathing ,Medicine ,sense organs ,medicine.symptom ,skin and connective tissue diseases ,Dietary modifications ,business ,Intensive care medicine ,Alcohol consumption - Abstract
Purpose of review Hypertension is one of the leading causes of preventable premature death. Recent findings Strongly advocating for lifestyle changes to improve blood pressure control is of paramount importance in the successful management of hypertension. In this review, we will discuss the effect of various behavioral and lifestyle changes and review the evidence to support these changes to improve blood pressure control. These include dietary modifications, alcohol consumption, weight loss, various types of exercise, device-guided breathing, relaxation, and biofeedback techniques.
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- 2021
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49. Surgical Management of the Axilla in Patients with Occult Breast Cancer (cT0 N+) After Neoadjuvant Chemotherapy
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Francis I. Macedo, Kristin N. Kelly, Amber L. Collier, Brianna L. Cohen, Dido Franceschi, Eli Avisar, Danny Yakoub, Neha Goel, Mecker G. Möller, and Susan B. Kesmodel
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medicine.medical_specialty ,education.field_of_study ,business.industry ,medicine.medical_treatment ,Sentinel lymph node ,Population ,medicine.disease ,Surgery ,Radiation therapy ,03 medical and health sciences ,Axilla ,0302 clinical medicine ,medicine.anatomical_structure ,Breast cancer ,Oncology ,Surgical oncology ,030220 oncology & carcinogenesis ,medicine ,030211 gastroenterology & hepatology ,business ,education ,Survival rate ,Mastectomy - Abstract
Occult breast cancer (OBC) is a rare clinical entity. Current surgical management includes axillary lymphadenectomy (ALND) with or without mastectomy. We sought to investigate the role of sentinel lymph node biopsy (SLNB) in patients with OBC treated with neoadjuvant chemotherapy (NAC). Patients with clinical T0N+ breast cancer were selected from the National Cancer Data Base (NCDB, 2004–2014) and compared according to axillary surgical approach, SLNB (≤ 4 LNs) or ALND (> 4 LNs). Primary outcome was overall survival (OS), calculated using Kaplan–Meier methods. Secondary outcome was complete pathological response (pCR). A total of 684 patients with OBC were identified: 470 (68.7%) underwent surgery upfront and 214 (31.3%) received NAC. Of the NAC patients, 34 (15.9%) underwent SLNB and 180 (84.1%) ALND. One hundred and fifty-three (72%) patients received radiotherapy (RT). There was no difference in pCR rates between the ALND and SLNB (34.3% vs 24.5%, respectively p = 0.245). In patients undergoing surgery first, improved OS was observed with ALND compared to SLNB (106.9 vs 85.5 months, p = 0.013); however, no difference in OS was found in patients who received NAC (105.6 vs 111.3 months, p = 0.640). RT improved OS in patients who underwent NAC followed by SLNB (RT, 123 months vs no RT, 64 months, p = 0.034). Of NAC patients who did not undergo RT, ALND had superior survival compared to SLNB (113 vs 64 months, p = 0.013). This is the first comparative analysis assessing the surgical management of the axilla in patients with OBC who underwent NAC. In this population, there was a decrease in survival in patients who underwent SLNB alone; however, with the addition of RT, there was no difference in OS between SLNB and ALND. SLNB plus RT may be considered as an alternative to ALND in patients with OBC who have a good response to NAC.
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- 2020
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50. Evaluation of CTPA interpreted as limited in pregnant patients suspected for pulmonary embolism
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Pina C. Sanelli, Chinara Feizullayeva, M Mankerian, Douglas P. Barnaby, John Austin McCandlish, Thomas McGinn, Stuart L. Cohen, and J. Wang
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Adult ,medicine.medical_specialty ,Multivariate analysis ,Computed Tomography Angiography ,Pregnancy Complications, Cardiovascular ,Logistic regression ,030218 nuclear medicine & medical imaging ,Continuous variable ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Body Size ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Ct pulmonary angiography ,medicine.diagnostic_test ,business.industry ,Obstetrics ,Age Factors ,030208 emergency & critical care medicine ,Retrospective cohort study ,medicine.disease ,Pulmonary embolism ,Emergency Medicine ,Female ,Pregnancy Trimesters ,Pulmonary Embolism ,business ,Chest radiograph - Abstract
The purpose of this study is to determine the rates of CT pulmonary angiography (CTPA) interpreted as limited and severely limited in pregnant patients suspected for pulmonary embolism (PE), and to evaluate factors that influence these rates. This is a retrospective study with CTPA for evaluation of PE in pregnancy across a large health system from 2006 to 2017. CTPA was classified as limited from the radiology report with a subset of those studies classified as severely limited. Bivariate and multivariate analysis was performed for limited and severely limited rates with maternal age and patient size as a continuous variable and race, trimester, patient location study priority status, and result of chest radiograph before CTPA as categorical variables. 874 patients with 33% of studies limited and 4% of studies severely limited. Multivariate logistic regression of CTPA studies revealed decreasing patient age (OR 0.967, p = 0.0129) and increasing patient size (OR 1.013, p
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- 2019
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