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Articles 331 - 360 of 19311
Full-Text Articles in Entire DC Network
Play To Win: A Randomized Controlled Trial To Assess The Effects Of Play-Based Training On Upper Extremity Function In Children With Hemiplegia, Vivian London
Honors Scholar Theses
Hemiplegia, or paralysis of one side of the body, is the primary symptom of unilateral cerebral palsy, a subtype of cerebral palsy, the most common movement disorder in children. Standard of care is regular physical and occupational therapy to improve performance in bimanual activities, but conventional therapy can be expensive and draining for caregivers and children, so a need exists for a novel intervention that can take place at home and that is economical for families while being engaging for children. This thesis reports data from a subset of ten children seen as part of a randomized controlled clinical trial …
The Development Of A Crispr-Based Calibrated Functional Assay For Classifying Pathogenicity Of Msh2 And Msh6 Variants In Lynch Syndrome, Olivia N. Amodeo
The Development Of A Crispr-Based Calibrated Functional Assay For Classifying Pathogenicity Of Msh2 And Msh6 Variants In Lynch Syndrome, Olivia N. Amodeo
Honors Scholar Theses
Lynch syndrome is a hereditary disease caused by the inheritance of a mismatch repair gene variant. Individuals with this condition are predisposed to cancer development, most commonly colorectal cancer. Current guidelines for variant classification are based on numerous evidence categories, including functional evidence. However, many novel clinical variants are not well characterized, and evidence is difficult to obtain if functional assays are not calibrated.
To address this, our lab created a calibrated functional assay that calculates an odds of pathogenicity score for MSH2 and MSH6 gene variants that can be used as evidence for classifying variants of uncertain significance. This …
Consensus Guidelines On Inferior Petrosal Sinus Sampling: A Guideline From The Society Of Vascular And Interventional Neurology Guidelines And Practice Standards Committee, Farhan Siddiq, Hunter Brooks, Esra Demirtas, Ibrahim Ahmad Bhatti, Sami Al Kasab, Adam De Havenon, Robin Novakovic, Ossama Y. Mansour, Cynthia L. Kenmuir, Ameer E. Hassan
Consensus Guidelines On Inferior Petrosal Sinus Sampling: A Guideline From The Society Of Vascular And Interventional Neurology Guidelines And Practice Standards Committee, Farhan Siddiq, Hunter Brooks, Esra Demirtas, Ibrahim Ahmad Bhatti, Sami Al Kasab, Adam De Havenon, Robin Novakovic, Ossama Y. Mansour, Cynthia L. Kenmuir, Ameer E. Hassan
School of Medicine Publications
Background: Bilateral inferior petrosal sinus sampling (BIPSS) is the gold-standard test to distinguish Cushing disease (CD) from ectopic adrenocorticotropic hormone (ACTH) secretion when biochemistry confirms ACTH-dependent Cushing syndrome and pituitary magnetic resonance imaging is equivocal. However, practice varies widely between centers, leading to false negatives, misinterpretation, sampling errors, and avoidable risk. Neurointerventionalists performing BIPSS have lacked dedicated, procedure-focused guidance.
Methods: Using the Society of Vascular and Interventional Neurology Guidelines and Practice Standards framework, a multidisciplinary panel (endocrinology, interventional neuroradiology, and endovascular neurosurgery) performed a systematic review through August 2025 and developed recommendations graded by class of recommendation and level of …
Understanding Delays In Emergency Department Care: A National Analysis Of Wait Times, Gregory Forsberg
Understanding Delays In Emergency Department Care: A National Analysis Of Wait Times, Gregory Forsberg
Mathematics, Statistics, and Computer Science Honors Projects
Emergency department (ED) wait times remain a persistent bottleneck in the United States healthcare system, impacting patient outcomes, hospital efficiency, and equitable access to care. This study analyzes nationally representative data from the National Hospital Ambulatory Medical Care Survey (NHAMCS), a complex, multi-stage probability sample. Using survey-weighted analyses and predictive modeling, we examine the effects of patient characteristics, triage acuity, and visit timing. Results indicate that operational and system-level factors, including hospital capacity, geographic region, and temporal variation, are among the most influential predictors of ED wait times
Pattern Dynamics And Stochasticity Of Brain Rhythms And Spike Trains In A Tauopathy Mouse Model Of Alzheimer’S Disease, Clarissa M. Hoffman
Pattern Dynamics And Stochasticity Of Brain Rhythms And Spike Trains In A Tauopathy Mouse Model Of Alzheimer’S Disease, Clarissa M. Hoffman
Dissertations and Theses (Open Access)
Systems neuroscience posits that every aspect of perceived physical reality, every aspect of animal and human behavior, and every cognitive phenomenon emerges from patterns of neuronal activity. While most researchers embrace this idea, there are major difficulties in describing and analyzing these complex neuronal dynamics—spike flows produced by cells ensembles, synchronized extracellular field oscillations, and other patterns—which limits our understanding of how the activity of individual neurons and the whole-animal cognition and behavior might be connected. In particular, we lack the approaches and even the semantics for connecting the individual cell outputs and the integrated results of their activity. Current …
Technical Development, Optimization, And Clinical Implementation Of Quantitative Magnetic Resonance Imaging Methods For Radiation Oncology, Lucas Mccullum
Technical Development, Optimization, And Clinical Implementation Of Quantitative Magnetic Resonance Imaging Methods For Radiation Oncology, Lucas Mccullum
Dissertations and Theses (Open Access)
Magnetic resonance imaging (MRI) has gradually grown more important in the field of radiation oncology. This paradigm shift has grown from initial experiments with MRI of cancerous lesions in the early 1970s, to the integration of MRI images for radiation therapy treatment planning (i.e., MRI-Simulation) in the early 1980s, to the combined MRI linear accelerator (MR-Linac) becoming commercially available in 2018 which can simultaneously image a tumor and treat it with radiation. However, due to its novelty in radiation oncology, its full potential for the integration of quantitative MRI-based biomarkers has yet to be fully realized.
Therefore, this dissertation will …
Changes In Opioid Prescribing Patterns In Opioid Naive Patients Can Translate To Improved Outcomes In The Opioid Non-Naive Patients With Anterior Cervical Surgery: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Bhargav Ayloo, Trevor Ruesch, Adam Junn, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tang, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang
Changes In Opioid Prescribing Patterns In Opioid Naive Patients Can Translate To Improved Outcomes In The Opioid Non-Naive Patients With Anterior Cervical Surgery: A Michigan Spine Surgery Improvement Collaborative (Mssic) Study, Anisse Chaker, Geoff Kahn, Michael Melhem, Jian-Hui Hu, Kari Jarabek, Heegook Yeo, Bhargav Ayloo, Trevor Ruesch, Adam Junn, Jad Khalil, Kenneth Easton, Richard Easton, Doris Tang, Miguelangelo Perez-Cruet, Noojan Kazemi, Ilyas Aleem, Muwaffak Abulhak, David Nerenz, Victor Chang
Conference Presentation Abstracts
Introduction: Though often necessary for adequate analgesia after spine surgery, continued opioid use can lead to chronic dependency. The Michigan Spine Surgery Improvement Collaborative (MSSIC) has demonstrated in prior work the promise of utilizing a multi-institutional morphine milliequivalent (MME) cutoff for elective anterior cervical surgery in the opioid naıve population. However, the effect of this cutoff in patients who were already on opioids pre-operatively have not previously been studied. The goal of this study was to evaluate whether changes in prescribing patterns in the opioid naıve population would also translate to the non-naıve populations, and whether the non-naıve population would …
Determining Zap-70 Signaling Pathways Mediated By Ccr7 In Tcr T Cell Activation, Vivian Torres
Determining Zap-70 Signaling Pathways Mediated By Ccr7 In Tcr T Cell Activation, Vivian Torres
Open Access Theses & Dissertations
Activation of T lymphocytes is the main event that occurs in the adaptive immune response after engagement of the T cell receptor (TCR) with the peptide of the major histocompatibility complex (pMHC) molecules that are demonstrated by antigen presenting cells [1]. A key step in this process is the recruitment and activation of the zeta chain associated protein of 70 kDa (ZAP-70). ZAP-70 couples TCR engagement to downstream intracellular signaling pathways through phosphorylation of tyrosine residues within intracellular tyrosine activation motifs (ITAMs) [2]. Although there have been extensive studies on the signaling response through TCR activation, the regulatory influence of …
Novel Applications Of Coronary Cta In Patients With Intermediate Risk Of Cad, Ashley Armstrong, Luai Madanat, Robert D. Safian
Novel Applications Of Coronary Cta In Patients With Intermediate Risk Of Cad, Ashley Armstrong, Luai Madanat, Robert D. Safian
Conference Presentation Abstracts
Background: ACC/AHA guidelines provide class 1 and 2A recommendations respectively for coronary CTA and FFRCT in patients with chest pain and intermediate risk of CAD. We present a case in which novel applications of CTA excluded obstructive CAD, identified the correct diagnosis, and allowed optimization of medical therapy. Case: In a 72-year-old male with stable angina and HEART score 6, stress ECG was positive for angina and frequent PVCs (Fig 1A). Coronary CTA (Fig 1B) and FFRCCT (Fig 1C) showed non-obstructive CAD and intramyocardial bridging/severe systolic compression in the mid-LAD (Fig 1D). AI plaque analysis demonstrated a mixed plaque burden …
Esophageal Diverticulum Presenting As Chest Pain In A Patient With Significant Cardiac History: A Diagnostic Challenge, Sujan Shrestha, Alnimer Khabbab, Kamal Khalil, Malitha Hettiarachchi
Esophageal Diverticulum Presenting As Chest Pain In A Patient With Significant Cardiac History: A Diagnostic Challenge, Sujan Shrestha, Alnimer Khabbab, Kamal Khalil, Malitha Hettiarachchi
Conference Presentation Abstracts
Introduction: Esophageal diverticula are uncommon structural abnormalities that may present with nonspecific symptoms such as dysphagia, regurgitation, and chest discomfort. It accounts for < 5% of all cases of dysphagia. In elderly patients with significant cardiac comorbidities, chest pain and dysphagia may be initially attributed to cardiovascular pathology, potentially delaying the correct diagnosis. This case highlights the importance of comprehensive history taking in identifying esophageal diverticulum as an alternative etiology of chronic symptoms. Case presentation: A 77-year-old female with a history of atrial fibrillation, unstable angina, chronic obstructive pulmonary disease, hypertension, and diastolic heart failure presented with chest pain. Given her significant cardiac history, she underwent extensive cardiac evaluation, including serial troponins, electrocardiography, echocardiography, and stress testing, all of which showed no evidence of acute ischemia. Further history revealed intermittent dysphagia to both solids and liquids for over three years, occurring approximately twice weekly. The patient described a sensation of food getting stuck in her throat, occasionally requiring expectoration. Gastroenterology was consulted, and esophagogastroduodenoscopy revealed minimal esophagitis with a distal esophageal diverticulum. The patient was managed conservatively with pantoprazole 40 mg daily, resulting in symptomatic improvement. Discussion: Esophageal diverticula are often associated with underlying esophageal motility disorders and can present with dysphagia to both solids and liquids. Symptoms may mimic or coexist with cardiopulmonary complaints, particularly in elderly patients with multiple comorbidities. While barium esophagography remains the diagnostic modality of choice, endoscopy can identify associated mucosal pathology and confirm the diagnosis. Management is individualized based on symptom severity and diverticulum size, with conservative therapy appropriate for mildly symptomatic patients. Conclusion: This case underscores the importance of considering esophageal diverticulum in the differential diagnosis of chronic dysphagia and chest discomfort, even in patients with significant cardiac disease. Careful history taking and multidisciplinary evaluation are essential to avoid misattribution of symptoms and to ensure timely diagnosis and appropriate management.
Corrigendum To 'Risk Factors For Bronchiolitis Obliterans Syndrome After Initial Detection Of Pulmonary Impairment After Hematopoietic Cell Transplantation' [Transplantation And Cellular Therapy 29/3 (2023) 204-204], Mansour Alkhunaizi, Badar Patel, Luis Bueno, Neel Bhan, Tahreem Ahmed, Muhammad H Arain, Rima Saliba, Gabriela Rondon, Burton F Dickey, Lara Bashoura, David E Ost, Liang Li, Shikun Wang, Elizabeth Shpall, Richard E Champlin, Rohtesh Mehta, Uday R Popat, Chitra Hosing, Amin M Alousi, Ajay Sheshadri
Corrigendum To 'Risk Factors For Bronchiolitis Obliterans Syndrome After Initial Detection Of Pulmonary Impairment After Hematopoietic Cell Transplantation' [Transplantation And Cellular Therapy 29/3 (2023) 204-204], Mansour Alkhunaizi, Badar Patel, Luis Bueno, Neel Bhan, Tahreem Ahmed, Muhammad H Arain, Rima Saliba, Gabriela Rondon, Burton F Dickey, Lara Bashoura, David E Ost, Liang Li, Shikun Wang, Elizabeth Shpall, Richard E Champlin, Rohtesh Mehta, Uday R Popat, Chitra Hosing, Amin M Alousi, Ajay Sheshadri
Faculty, Staff and Student Publications
No abstract provided.
Rethinking Mixed Dka-Hhs: An Extreme Presentation Of Hyperosmolar Hyperglycemic State, Sajith Silva, Umair Malik, Amin Pasha, Sujata Kambhatla
Rethinking Mixed Dka-Hhs: An Extreme Presentation Of Hyperosmolar Hyperglycemic State, Sajith Silva, Umair Malik, Amin Pasha, Sujata Kambhatla
Conference Presentation Abstracts
Introduction: The American Diabetes Association (ADA) recognizes diabetic ketoacidosis (DKA) and hyperglycemic hyperosmolar state (HHS) as life-threatening hyperglycemic emergencies that can overlap clinically; approximately 10% of presentations are described as mixed DKA–HHS. Because current guidelines do not define a single “mixed” category, overlap is best understood as concurrent fulfillment of key elements of both syndromes: DKA-type anion-gap metabolic acidosis with ketonemia or ketonuria, together with HHS-type severe hyperglycemia, hyperosmolality, and dehydration. We report an extreme HHS presentation (glucose >2,100 mg/dL) with limited DKA overlap. Case Description: A 34-year-old woman with longstanding type 1 diabetes mellitus managed with an insulin pump, …
Aspirin And Preterm Birth Among Pregnant People With Increased Heat Exposure: Secondary Analysis Of A Randomized Clinical Trial, Gabriella Meltzer, Luke Duttweiler, Sarah Saleem, Kartik Shankar, Manolo Mazariegos, Antoinette Tshefu, Jackie Patterson, Elwyn Chomba, Waldemar Carlo, Shivaprasad Goudar, Richard Derman, Archana Patel, Patricia Hibberd, Edward Liechty, Fabian Essamai, Edwin Asturias, Denise Babineau, Janet Moore, Cascade Tuholske, Andrew Zimmer, Brent Coull, Elizabeth Mcclure, Robert Goldenberg, Nancy Krebs, Matthew Hoffman, Blair Wylie
Aspirin And Preterm Birth Among Pregnant People With Increased Heat Exposure: Secondary Analysis Of A Randomized Clinical Trial, Gabriella Meltzer, Luke Duttweiler, Sarah Saleem, Kartik Shankar, Manolo Mazariegos, Antoinette Tshefu, Jackie Patterson, Elwyn Chomba, Waldemar Carlo, Shivaprasad Goudar, Richard Derman, Archana Patel, Patricia Hibberd, Edward Liechty, Fabian Essamai, Edwin Asturias, Denise Babineau, Janet Moore, Cascade Tuholske, Andrew Zimmer, Brent Coull, Elizabeth Mcclure, Robert Goldenberg, Nancy Krebs, Matthew Hoffman, Blair Wylie
Global Health Articles
IMPORTANCE: Scalable interventions are urgently needed to mitigate the adverse effects of heat on pregnancy and newborn health.
OBJECTIVE: To evaluate whether low-dose aspirin modifies the association between heat exposure and preterm birth.
DESIGN, SETTING, AND PARTICIPANTS: This secondary analysis of the Global Network for Women's and Children's Health Research Aspirin Supplementation for Pregnancy Indicated Risk Reduction in Nulliparas (ASPIRIN) randomized, double-blinded, placebo-controlled clinical trial was conducted from March 2016 to June 2018. Statistical analyses were performed from June 2024 to June 2025. The study settings included the Democratic Republic of Congo, Zambia, Kenya, Guatemala, Pakistan, and Belagavi and Nagpur, …
Case Series: Joubert Syndrome And Eosinophilic Esophagitis, Jonathon Schening, Stephanie Leon-Paredes, Eric Chiou, Vibha Szafron, Anthony Olive, Sara Anvari
Case Series: Joubert Syndrome And Eosinophilic Esophagitis, Jonathon Schening, Stephanie Leon-Paredes, Eric Chiou, Vibha Szafron, Anthony Olive, Sara Anvari
Faculty, Staff and Students Publications
Joubert syndrome (JS) is a rare genetic disorder characterized by developmental abnormalities, particularly in the brainstem and cerebellar vermis, alongside multisystem manifestations such as kidney and liver anomalies, polydactyly, cleft lip or palate, and tongue defects. The underlying ciliopathy causing JS may also contribute to gastrointestinal symptoms and immune dysregulation via Wnt signaling and impaired epithelial maintenance. Dysmotility including Hirschsprung disease has been documented at increased rates in JS and in other ciliopathies. Our case series highlights how JS patients frequently exhibit feeding intolerance, vomiting, and poor growth, which may raise suspicion for an underlying gastrointestinal condition, such as eosinophilic …
Plasma Proteins Associated With Psychosocial Factors And Heart Disease: The Jackson Heart Study, Sara N O'Brien, Madeline G Gillman, Michael D Green, Daniel E Cruz, James S Floyd, Susan Hankinson, Daniel H Katz, Xiaojuan Liu, Michelle C Odden, Bruce M Psaty, Alexander P Reiner, Jerome I Rotter, Stephen S Rich, Robert E Gerszten, Amil Shah, Mario Sims, Usman A Tahir, Lesley F Tinker, Alexis C Wood, Bing Yu, Anthony S Zannas, Laura M Raffield, Láshauntá M Glover
Plasma Proteins Associated With Psychosocial Factors And Heart Disease: The Jackson Heart Study, Sara N O'Brien, Madeline G Gillman, Michael D Green, Daniel E Cruz, James S Floyd, Susan Hankinson, Daniel H Katz, Xiaojuan Liu, Michelle C Odden, Bruce M Psaty, Alexander P Reiner, Jerome I Rotter, Stephen S Rich, Robert E Gerszten, Amil Shah, Mario Sims, Usman A Tahir, Lesley F Tinker, Alexis C Wood, Bing Yu, Anthony S Zannas, Laura M Raffield, Láshauntá M Glover
Faculty, Staff and Students Publications
Background: Knowledge of proteomic mechanisms explaining the link between psychosocial stress and cardiovascular disease is limited. This study aimed to (1) identify plasma proteins associated with psychosocial factors and (2) assess associational pathways between psychosocial factors, identified proteins, and incident cardiovascular disease events in a discovery cohort, JHS (Jackson Heart Study), and 2 replication cohorts, the CHS (Cardiovascular Health Study), and the MESA (Multi-Ethnic Study of Atherosclerosis).
Methods: JHS participants from exam 1 (2000-2004) with SomaScan 1.3k platform proteomics data were included (n=2143, mean age=55.3). Depressive symptoms and perceived stress scores were measured via the 20-item Center for Epidemiological Studies …
Development And Pilot Testing Of Transdiagnostic Exposure Therapy/Behavioral Activation For Autistic Adolescents With Internalizing Disorders, Andrew G Guzick, Elizabeth A Kaplan-Kahn, Jessica Szu-Chi Cheng, Callie Murphy, Ogechi C Onyeka, David Riddle, Tracy Dibbs, Leandra N Berry, Robin P Goin-Kochel, Eric A Storch
Development And Pilot Testing Of Transdiagnostic Exposure Therapy/Behavioral Activation For Autistic Adolescents With Internalizing Disorders, Andrew G Guzick, Elizabeth A Kaplan-Kahn, Jessica Szu-Chi Cheng, Callie Murphy, Ogechi C Onyeka, David Riddle, Tracy Dibbs, Leandra N Berry, Robin P Goin-Kochel, Eric A Storch
Faculty, Staff and Students Publications
Internalizing disorders disproportionately affect autistic adolescents, though limited research has focused on tailoring therapy for this population. The purposes of this paper were (1) to describe the development of a transdiagnostic exposure therapy/behavioral activation intervention for autistic adolescents with internalizing disorders, and (2) to present a pilot test of feasibility, acceptability, and efficacy of the intervention. The development of this therapy is described in detail, which prioritized the following domains: (1) building on the existing evidence base of exposure-based cognitive behavioral therapy for autistic youth with anxiety disorders, (2) involving caregivers considerably, (3) incorporating autism-specific considerations into case conceptualization and …
Stance And Gait Analysis Of Apollo Astronauts On The Moon, Faye Y Chiou-Tan, Conrad Li, Jason P Caffrey, Millard Reschke, Timothy R Macaulay
Stance And Gait Analysis Of Apollo Astronauts On The Moon, Faye Y Chiou-Tan, Conrad Li, Jason P Caffrey, Millard Reschke, Timothy R Macaulay
Faculty, Staff and Students Publications
Introduction/aim: As humans return to the Moon, safe efficient ambulation and fall prevention on the lunar surface are key concerns. The analysis of gait from archived Apollo mission video footage is now possible with pose estimation video analysis software. Thus, this study aims to retrospectively quantify parameters of Apollo astronauts' stance and gait on the Moon.
Methods: Publicly available National Aeronautics and Space Administration (NASA) footage of astronauts ambulating on the Lunar surface was examined using body pose analysis software. Goniometric lower limb joint/torso angles and width of base of stance and gait were derived. Gait cycle stance phase, swing …
Mif-Cd74 Signaling Drives Immune Modulation In Medulloblastoma, Benjamin Draper, Zhen You, Dean Thompson, Xu Guo, Alaide Morcavallo, Diego Chillon Pino, Carlos Lorenzo Gido Nery, Sumana Shrestha, Chantelle E Bowers, Courtney Himsworth, Alberto Delaidelli, Bethany Remeniuk, Sonia Morlando, Brandon Wade, Freya Gordon, Yara Sanchez-Corrales, Bei Hopkins, Natalie Monteiro, Darren Locke, Miao Liu, Jacob Torrejon Diaz, Kevin Greenslade, Barbara Martins Da Costa, Karen Barker, Colin Kwok, Olumide Ogunbiyi, Anya Fletcher, Stacey Richardson, Carlos Custodia, Rafael Roque, Thomas Jackson, Regan Barfoot, Sergi Castellano, Rebecca M Hill, Olivier Saulnier, Thomas S Jacques, Michael D Taylor, Claudia C Faria, Olivier Ayrault, Poul H Sorensen, John Anderson, Louis Chesler, L Frank Huang, Steven C Clifford, Laura K Donovan
Mif-Cd74 Signaling Drives Immune Modulation In Medulloblastoma, Benjamin Draper, Zhen You, Dean Thompson, Xu Guo, Alaide Morcavallo, Diego Chillon Pino, Carlos Lorenzo Gido Nery, Sumana Shrestha, Chantelle E Bowers, Courtney Himsworth, Alberto Delaidelli, Bethany Remeniuk, Sonia Morlando, Brandon Wade, Freya Gordon, Yara Sanchez-Corrales, Bei Hopkins, Natalie Monteiro, Darren Locke, Miao Liu, Jacob Torrejon Diaz, Kevin Greenslade, Barbara Martins Da Costa, Karen Barker, Colin Kwok, Olumide Ogunbiyi, Anya Fletcher, Stacey Richardson, Carlos Custodia, Rafael Roque, Thomas Jackson, Regan Barfoot, Sergi Castellano, Rebecca M Hill, Olivier Saulnier, Thomas S Jacques, Michael D Taylor, Claudia C Faria, Olivier Ayrault, Poul H Sorensen, John Anderson, Louis Chesler, L Frank Huang, Steven C Clifford, Laura K Donovan
Faculty, Staff and Students Publications
Background: Relapsed medulloblastoma remains a significant therapeutic challenge as it is near universally fatal. The tumor microenvironment of medulloblastoma plays a critical role in tumor progression, influencing tumor growth, immune evasion, and therapeutic resistance. We hypothesized that defining tumor-immune interactions in diagnostic and relapsed medulloblastoma may uncover mechanisms of immune evasion and identify novel therapeutic targets.
Methods: We analyzed paired primary and recurrent RNA-sequencing data from 140 medulloblastoma patients to profile immune cell composition and validate spatial relationships within the TME. To identify key tumor-immune interactions, we developed a novel algorithm to detect receptor-ligand pairs using single-cell RNA-sequencing data. These …
Assessment Of Correctness, Content Omission, And Risk Of Harm In Large Language Model Responses To Ophthalmology Continuing Medical Education Questions, Jacqueline L Chen, Amanda J Lu, Rohan Verma, Li Wang, Douglas D Koch, Allison J Chen
Assessment Of Correctness, Content Omission, And Risk Of Harm In Large Language Model Responses To Ophthalmology Continuing Medical Education Questions, Jacqueline L Chen, Amanda J Lu, Rohan Verma, Li Wang, Douglas D Koch, Allison J Chen
Faculty, Staff and Students Publications
Purpose: To evaluate the accuracy and prose responses of 2 large language models (LLMs) to ophthalmology continuing medical education questions.
Design: Question prompts and multiple choice (MC) answer options were input into the 2 LLMs, and responses were analyzed for accuracy and assessed for evidence of correctness, completeness, bias, and potential harm using a previously reported standardized rubric.
Subjects: Basic and Clinical Science Course questions and MC answer options from the American Academy of Ophthalmology question bank were used as inputs into the 2 LLMs (ChatGPT-4 and Google Vertex's Gemini Pro 1.5).
Methods: The MC responses were assessed for accuracy …
The Camus Initiative: A Multiphase, Multicentre International Collaboration To Redefine Risk Stratification, Reporting, And Grading Of Surgical Complications In Urology., Christopher Soliman, Niranjan J. Sathianathen, Niall M. Corcoran, Nathan Lawrentschuk, Patrick Y. Wuethrich, Marc A. Furrer, Paul Chung, Camus Study Group Collaborators
The Camus Initiative: A Multiphase, Multicentre International Collaboration To Redefine Risk Stratification, Reporting, And Grading Of Surgical Complications In Urology., Christopher Soliman, Niranjan J. Sathianathen, Niall M. Corcoran, Nathan Lawrentschuk, Patrick Y. Wuethrich, Marc A. Furrer, Paul Chung, Camus Study Group Collaborators
Department of Neurology Faculty Papers
Surgical complications remain a major source of preventable morbidity, mortality, and health care expenditure, but existing frameworks such as the Clavien-Dindo classification and Comprehensive Complication Index are clinician-centred and intervention-focused and fail to capture cumulative patient-centred outcomes. This protocol outlines the Complications After Major and Minor Urological Surgery (CAMUS) initiative, a global, multiphase effort to redefine complication reporting, risk stratification, and outcome measurement in urological surgery. CAMUS aims to address these limitations via an integrated, seven-arm programme combining retrospective and prospective data analysis, consensus development, and digital infrastructure design. Arm 1 has assembled a retrospective data set of 130 034 …
Knowledge Gaps In High-Energy Sacral Fracture Treatment And Management, Ashraf N. El Naga, Marko H. Neva, Ahmed Abdelazim Hassan, Gregory D. Schroeder, Mohammad El-Sharkawi, Sebastian F. Bigdon, Andrei F. Joaquim, Klaus Schnake, Richard Bransford, Emre Yilmaz
Knowledge Gaps In High-Energy Sacral Fracture Treatment And Management, Ashraf N. El Naga, Marko H. Neva, Ahmed Abdelazim Hassan, Gregory D. Schroeder, Mohammad El-Sharkawi, Sebastian F. Bigdon, Andrei F. Joaquim, Klaus Schnake, Richard Bransford, Emre Yilmaz
Rothman Institute Papers
High-energy sacral fractures (HESF) are often challenging injuries due to the location of the sacrum at the junction of the spine and pelvis, the complex biomechanics of the pelvic ring and the wide spectrum of injury patterns, which make treatment standardization challenging. Despite advances in classification systems - particularly the AOSpine Sacral Injury Classification - significant gaps remain in understanding optimal management. To review and discuss the management and identify knowledge gaps related to HESF. A narrative review of the literature was conducted, focusing on five domains: 1. Relative instability and biomechanics affected in different injury patterns; 2. The significance …
Cyanosis-Associated Coagulopathy In Neonates Undergoing Cardiopulmonary Bypass: A Scoping Review, Lily Crickmar
Cyanosis-Associated Coagulopathy In Neonates Undergoing Cardiopulmonary Bypass: A Scoping Review, Lily Crickmar
Student Works
2. Structured summary:
A. Background: Patients with cyanotic congenital heart disease exhibit coagulation abnormalities related to chronic hypoxemia, which may increase the risk of bleeding and thrombosis, particularly during cardiopulmonary bypass.
B. Objective: This scoping review mapped the existing literature on coagulation disturbances and perioperative hemostatic outcomes in pediatric patients with cyanotic congenital heart disease.
C. Methods: 14 studies meeting the inclusion criteria were identified through structured database searching. The data were collected and synthesized descriptively due to heterogeneity in study design, patient populations, and coagulation assessment methods.
D. Results: Across studies, cyanotic patient physiology was associated with platelet dysfunction, …
Occupational Stressors And Health Impacts Among First Responders, Mason N. Roach
Occupational Stressors And Health Impacts Among First Responders, Mason N. Roach
Honors College Theses
The United States 911 emergency response system is an interconnected web of public services that seeks to provide its community with care, resources, and safety in times of need. However, the impact of this support on the employees providing the service often goes unnoticed. This review identifies and analyzes the unique strains on first responders' physical and mental health using the Job Demand-Control Model and the Allostatic Load Model. A review of available research literature supports the conclusion that occupational-related stress, including trauma exposure, shift work, poor leadership, and inadequate communication, can have long-lasting negative impacts on provider health.
Reinforcement Learning Improves Llm Accuracy And Reasoning In Disease Classification From Radiology Reports, Yishu Wei, Yi Lin, Adam Flanders, George Shih, Yifan Peng
Reinforcement Learning Improves Llm Accuracy And Reasoning In Disease Classification From Radiology Reports, Yishu Wei, Yi Lin, Adam Flanders, George Shih, Yifan Peng
Department of Radiology Faculty Papers
Accurate disease classification from radiology reports is essential for many applications. While supervised fine-tuning (SFT) of lightweight LLMs improves accuracy, it can degrade reasoning. We propose a two-stage approach: SFT on disease labels followed by Group Relative Policy Optimization (GRPO) to refine predictions by optimizing accuracy and format without reasoning supervision. Across three radiologist-annotated datasets, SFT outperformed baselines and GRPO further improved classification and enhanced reasoning recall and comprehensiveness.
Extrapulmonary Small Cell Carcinoma Presenting As Bilateral Papilledema, Hyponatremia, Encephalitis, Seizures, Crmp5-Igg Reactivity, And Prominent Anterior Tubular Perivascular Spaces, Ramsis Benjamin, Drew Thomas, Nina Mourao, J. Judd Fite, Brianna Woodliff, Shubhank Goyal
Extrapulmonary Small Cell Carcinoma Presenting As Bilateral Papilledema, Hyponatremia, Encephalitis, Seizures, Crmp5-Igg Reactivity, And Prominent Anterior Tubular Perivascular Spaces, Ramsis Benjamin, Drew Thomas, Nina Mourao, J. Judd Fite, Brianna Woodliff, Shubhank Goyal
School of Medicine Publications
Background: Paraneoplastic syndromes that affect both the optic disc and the brain parenchyma typically harbor antibodies directed toward CV2/collapsin response-mediator protein 5 (anti-CRMP5), amphiphysin, Ma antigen 2 (Ma2/Ta), and Yo. The most common cancers linked to anti-CRMP5 antibodies include small-cell lung carcinoma (SCLC), followed by thymoma, renal cell carcinoma, and thyroid papillary carcinoma. A long-held belief explains papilledema as related to increased pressure within the subarachnoid space or the microvascular capillaries, but intracranial pressures within the normal standard range may exist in a person with a paraneoplastic syndrome and papilledema. The glymphatic system, a central waste-clearance conduit, may play a …
Hypercalcemic Crisis After Open Mitral Valve Replacement, Andrew Sunwood, Do, Jason Heino
Hypercalcemic Crisis After Open Mitral Valve Replacement, Andrew Sunwood, Do, Jason Heino
Books, Presentations, Posters, Etc.
59. Hypercalcemic Crisis After Open Mitral Valve Replacement Andrew Sunwood, DO Background: Hypercalcemic crisis is a rare manifestation of primary hyperparathyroidism characterized by a sudden increase in serum calcium levels to >14 mg/dL with symptoms of hypercalcemia including adverse gastrointestinal symptoms, abdominal pain, and even predisposition to cardiac arrhythmias. There is only one other documented case of hypercalcemic crisis occurring after open heart surgery. Case information: 69-year-old female with a history of primary osteoporosis on alendronate and valvular heart failure presented for mitral valve replacement. Preoperative lab work did not show evidence of electrolyte abnormalities. She under- went open bioprosthetic …
Improving Cervical Cancer Screening At Pmg Southeast Family Medicine Through Implementing A New Screening Tool: Patient-Collected High-Risk Hpv Screening, Brianna Pickering, August Stuppy, Eric Waelbroeck, Ben Pederson, Daniel Ruegg
Improving Cervical Cancer Screening At Pmg Southeast Family Medicine Through Implementing A New Screening Tool: Patient-Collected High-Risk Hpv Screening, Brianna Pickering, August Stuppy, Eric Waelbroeck, Ben Pederson, Daniel Ruegg
Books, Presentations, Posters, Etc.
No abstract provided.
Addressing Food Insecurity Through Partnering With The Community Teaching Kitchen On Lifestyle Medicine Hypertension Class, Emily Miyasako, Jill Christensen
Addressing Food Insecurity Through Partnering With The Community Teaching Kitchen On Lifestyle Medicine Hypertension Class, Emily Miyasako, Jill Christensen
Books, Presentations, Posters, Etc.
Background: Food insecurity is defined as limited or unreliable access to adequate and nutritious food. In Oregon, approximately 1 in 8 residents experience food insecurity, with rates disproportionately affecting low-income individuals, racial and ethnic minorities, and households with children or elderly individuals. Food insecurity remains a significant threat to our patients’ health and is associated with obesity, malnutrition, and poor mental health. As a primary care provider, I have seen the effects of food insecurity on my patients, but I am thankful for the presence of our Community Teaching Kitchen. The Community Teaching Kitchen (CTK) at Providence Milwaukie provides nutritional …
Erratum To ``Childhood Obesity: Global Burden, Multifactorial Etiologies, Biological Mechanisms, And Emerging Interventions For Prevention And Management'' [Saudi Medical Journal 2026; 47(2):183–194], Fahad H. Baali
Saudi Medical Journal
In the manuscript entitled: ``Childhood Obesity: Global Burden, Multifactorial Etiologies, Biological Mechanisms, and Emerging Interventions for Prevention and Management'' Published in Saudi Med J 2026; Vol. 47(2): 183–194. doi: 10.15537/1658-3175.1001
The tables included in the published version were incorrect due to a production error.
Erratum To ``The Association Between Inflammatory Bowel Disease And Ischemic Heart Disease: A Retrospective Cohort Study'' [Saudi Medical Journal 2025 Oct; 46(10):1174–1181], Mahmoud H. Mosli, Dima M. Alsulami, Yara K. Alghamdi, Abdullah S. Badahdah, Asmaa H. Alhibshi, Thamer M. Alamri, Maan S. Alkhattabi, Khames T. Alzahrani, Hadeel A. Alsufyani, Omar I. Saadah
Erratum To ``The Association Between Inflammatory Bowel Disease And Ischemic Heart Disease: A Retrospective Cohort Study'' [Saudi Medical Journal 2025 Oct; 46(10):1174–1181], Mahmoud H. Mosli, Dima M. Alsulami, Yara K. Alghamdi, Abdullah S. Badahdah, Asmaa H. Alhibshi, Thamer M. Alamri, Maan S. Alkhattabi, Khames T. Alzahrani, Hadeel A. Alsufyani, Omar I. Saadah
Saudi Medical Journal
In the manuscript entitled ``The Association between Inflammatory Bowel Disease and Ischemic Heart Disease: A Retrospective Cohort Study,'' published in Saudi Med J 2025 Oct;46(10):1174–1181. doi: 10.15537/smj.2025.46.10.20250181, the affiliation of Dr. Maan Alkhattabi was omitted from the final published version.
The correct affiliation for Dr. Maan Alkhattabi is as follows:
Department of Medicine, Faculty of Medicine, King Abdulaziz University–Rabigh, Jeddah, Kingdom of Saudi Arabia.