Medical Specialties Commons^™

Cytometric Characterization Of Circulating Tumor Cells Captured By Microfiltration And Their Correlation To The Cellsearch(®) Ctc Test., Daniel L Adams, Steingrimur Stefansson, Christian Haudenschild, Stuart S Martin, Monica Charpentier, Saranya Chumsri, Massimo Cristofanilli, Cha-Mei Tang, R Katherine Alpaugh

Pathology Faculty Publications

Recent studies reporting hundreds, to thousands, of circulating tumor cells (CTCs) in the blood of cancer patients have raised questions regarding the prevalence of CTCs, as enumerated by the CellSearch(®) CTC Test. Although CellSearch has been shown to consistently detect clinically relevant CTCs; the ability to only capture EpCAM positive cells has led to speculation that it captures limited subsets of CTCs. In contrast, alternative approaches to CTC isolation are often cited as capturing large numbers of CTCs from patient blood. Not surprisingly the number of cells isolated by alternative approaches show poor correlations when compared to CellSearch, even when …

A Standardized Autopsy Procurement Allows For The Comprehensive Study Of Dipg Biology., Madhuri Kambhampati, Jennifer P. Perez, Sridevi Yadavilli, Amanda M. Saratsis, D. Ashley Hill, Cheng-Ying Ho, Eshini Panditharatna, Melissa Markel, Roger J. Packer, Javad Nazarian

Pathology Faculty Publications

Diffuse intrinsic pontine glioma (DIPG) is one of the least understood and most deadly childhood cancers. Historically, there has been a paucity of DIPG specimens for molecular analysis. However, due to the generous participation of DIPG families in programs for postmortem specimen donation, there has been a recent surge in molecular analysis of newly available tumor specimens. Collaborative efforts to share data and tumor specimens have resulted in rapid discoveries in other pediatric brain tumors, such as medulloblastoma, and therefore have the potential to shed light on the biology of DIPG. Given the generous gift of postmortem tissue donation from …

Complex Care Curriculum: Autonomic Dysreflexia, Jimmy Beck, Rebekah Conroy

E-Learning Modules

Children with special health care needs (CSHCN) are increasingly prevalent in US hospitals. The pediatric hospitalist is often the primary provider of inpatient care for these patients. However, exposure to this patient population during training varies from provider to provider. No published educational curricula are specific to the inpatient care of this population. The purpose of this project is to build a multi-modal educational curriculum for providers with the overall goal of improving inpatient care for this at-risk population.

This curriculum is primarily composed of a series of topic-specific learning modules. Asynchronous learning modules, utilized appropriately, can augment learning by …

Neurosurgery Concepts: Key Perspectives On Dendritic Cell Vaccines, Metastatic Tumor Treatment, And Radiosurgery, Gordon Li, Jonathan H. Sherman, Jin Mo Cho, Michael Lim, Alexander A. Khalessi, Chaim B. Colen, Chae Yong Kim, Viincent Yat Wang, Gabriel Zada, Zachary A. Smith, Isaac Yang

Neurological Surgery Faculty Publications

Background: This is a laboratory study to investigate the effect of adding brain-derived-neurotrophic factor (BDNF) in a poly (N-isopropylacrylamide-g-poly (ethylene glycol) scaffold and its effect on spinal cord injury in a rat model.

Methods: This is a laboratory investigation of a spinal cord injury in a rat model. A dorsolateral funiculotomy was used to disrupt the dorsolateral funiculus and rubrospinal tract. Animals were then injected with either the scaffold polymer or scaffold polymer with BDNF. Postoperatively, motor functions were assessed with single pellet reach to grasp task, stair case reaching task and cylinder task. Histological study …

Imitation By Combination: Preschool Age Children Evidence Summative Imitation In A Novel Problem-Solving Task., Francys Subiaul, Edward Krajkowski, Elizabeth E Price, Alexander Etz

Pediatrics Faculty Publications

Children are exceptional, even 'super,' imitators but comparatively poor independent problem-solvers or innovators. Yet, imitation and innovation are both necessary components of cumulative cultural evolution. Here, we explored the relationship between imitation and innovation by assessing children's ability to generate a solution to a novel problem by imitating two different action sequences demonstrated by two different models, an example of imitation by combination, which we refer to as "summative imitation." Children (N = 181) from 3 to 5 years of age and across three experiments were tested in a baseline condition or in one of six demonstration conditions, varying in …

Treatment Planning And Patient Positioning For Mr-Guided High Intensity Focused Ultrasound Treatment: A Systematic Approach, David Kinnaird, Doug Wackerle, Daniel Yang, Matthew E. Oetgen, Avinash Eranki, Aerang Kim, +5 Additional Authors

Pediatrics Faculty Publications

No abstract provided.

Principles Of Using Cold Atmospheric Plasma Stimulated Media For Cancer Treatment, Dayun Yan, Annie Talbot, Niki Nourmohammadi, Xiaoqian Cheng, Jerome Canady, Jonathan H. Sherman, Michael Keidar

Neurological Surgery Faculty Publications

To date, the significant anti-cancer capacity of cold atmospheric plasma (CAP) on dozens of cancer cell lines has been demonstrated in vitro and in mice models. Conventionally, CAP was directly applied to irradiate cancer cells or tumor tissue. Over past three years, the CAP irradiated media was also found to kill cancer cells as effectively as the direct CAP treatment. As a novel strategy, using the CAP stimulated (CAPs) media has become a promising anti-cancer tool. In this study, we demonstrated several principles to optimize the anti-cancer capacity of the CAPs media on glioblastoma cells and breast cancer cells. Specifically, …

The Piriform, Perirhinal, And Entorhinal Cortex In Seizure Generation, Marta S. Vismer, Patrick A. Forcelli, Mark D. Skopin, Karen Gale, Mohamad Z. Koubeissi

Neurology Faculty Publications

Understanding neural network behavior is essential to shed light on epileptogenesis and seizure propagation. The interconnectivity and plasticity of the limbic and cortical regions of the mammalian brain provide the substrate for the hypersynchrony and hyperexcitability associated with epilepsy and seizure activity. Recurrent unprovoked seizures are the hallmark of epilepsy, and limbic epilepsy is the most common type of medically-intractable focal epilepsy in adolescents and adults that necessitates surgical evaluation. In this review, we describe the role and relationships among the piriform (PIRC), perirhinal (PRC), and entorhinal cortex (ERC) in seizure-generation and epilepsy. The inherent function, anatomy, and histological composition …

Proteomic Profiling Of High Risk Medulloblastoma Reveals Functional Biology, Jerome A. Staal, Ling San Lau, Huizhen Zhang, Wendy J. Ingram, Andrew R. Hallahan, Roger J. Packer, Brian R. Rood, Kristy J. Brown, +6 Additional Authors

Neurology Faculty Publications

Genomic characterization of medulloblastoma has improved molecular risk classification but struggles to define functional biological processes, particularly for the most aggressive subgroups. We present here a novel proteomic approach to this problem using a reference library of stable isotope labeled medulloblastoma-specific proteins as a spike-in standard for accurate quantification of the tumor proteome. Utilizing high-resolution mass spectrometry, we quantified the tumor proteome of group 3 medulloblastoma cells and demonstrate that high-risk MYC amplified tumors can be segregated based on protein expression patterns. We cross-validated the differentially expressed protein candidates using an independent transcriptomic data set and further confirmed them in …

The Piriform, Perirhinal, And Entorhinal Cortex In Seizure Generation., Marta S Vismer, Patrick A Forcelli, Mark D Skopin, Karen Gale, Mohamad Z. Koubeissi

Neurology Faculty Publications

Understanding neural network behavior is essential to shed light on epileptogenesis and seizure propagation. The interconnectivity and plasticity of mammalian limbic and neocortical brain regions provide the substrate for the hypersynchrony and hyperexcitability associated with seizure activity. Recurrent unprovoked seizures are the hallmark of epilepsy, and limbic epilepsy is the most common type of medically-intractable focal epilepsy in adolescents and adults that necessitates surgical evaluation. In this review, we describe the role and relationships among the piriform (PIRC), perirhinal (PRC), and entorhinal cortex (ERC) in seizure-generation and epilepsy. The inherent function, anatomy, and histological composition of these cortical regions are …

Do Emergency Department Patients Receive A Pathological Diagnosis? A Nationally-Representative Sample, Leana Wen, Janice A. Espinola, Joshua M. Mosowsky, Carlos A. Camargo

Emergency Medicine Faculty Publications

Introduction: Understanding the cause of patients’ symptoms often requires identifying a pathological diagnosis. A single-center study found that many patients discharged from the emergency department (ED) do not receive a pathological diagnosis. We analyzed 17 years of data from the National Hospital Ambulatory Medical Care Survey (NHAMCS) to identify the proportion of patients who received a pathological diagnosis at ED discharge. We hypothesized that many patients do not receive a pathological diagnosis, and that the proportion of pathological diagnoses increased between 1993 and 2009.

Methods:Using the NHAMCS data from 1993-2009, we analyzed visits of patients age ≥18 years, …

Single Center Experience On Dosing And Adverse Events Of Recombinant Factor Seven Use For Bleeding After Congenital Heart Surgery, Mustafa Kurkluoglu, Alyson M. Engle, John P. Costello, Narutoshi Hibino, David Zurakowski, Richard A. Jonas, John T. Berger, Dilip S. Nath

Surgery Faculty Publications

There are limited data on the relationship between the administered dose of recombinant factor seven (rFVIIa) and the development of adverse clinical outcomes after congenital heart surgery. This single institution case series reports on dosing, adverse events, and blood product usage after the administration of rFVIIa in the congenital heart surgery patient population. A retrospective review identified 16 consecutive pediatric patients at an academic, free-standing, children’s hospital who received rFVIIa to curtail bleeding following congenital heart surgery between April 2004 and June 2012. Patients were assessed for survival to hospital discharge versus in-hospital mortality and the presence or absence of …

Pneumonectomy In A Patient With Swyer-James-Macleod Syndrome, Mariana Vignola Cruz, Gregory D. Trachiotis

Surgery Faculty Publications

Swyer-James-MacLeod syndrome is a rare disease that results in parenchymal damage believed to be caused by recurrent lung infections in childhood. We report a case of a previously healthy young woman that presented with insidious progression of exertional dyspnea with restrictive lung physiology. Axial imaging demonstrated a hyperinflated emphysematous right lung with lower lobe fibrosis, nodules and air-fluid filled cysts, with a small right pulmonary artery and contralateral shifting of the mediastinum. She underwent right pneumonectomy ultimately resulting in improvement of her symptoms, with surgical pathology indicating extensive emphysema, bronchiectasis, fibrosis with osseous metaplasia, and placental transmogrification of alveolar septa, …

A Single Center Experience With Coronary Endarterectomy And Vein Patch Reconstruction, C. F. Hynes, Gregory D. Trachiotis

Surgery Faculty Publications

Background: To evaluate the medium and late term outcomes of coronary artery bypass grafting with pull-through coronary endarterectomy using a saphenous vein patch for bypass distal anastomosis site.

Methods: Retrospective review of all coronary artery bypass graft (CABG) procedures performed from January 1, 2000 through June 30, 2013 with and without concomitant coronary endarterectomy (CE), was carried out at the Veterans Affairs Medical Center in Washington DC. Patients who underwent concomitant valve operations were excluded. Primary outcome was overall survival, with analyses performed examining CE as well as the use of cardiopulmonary bypass. Secondary outcomes included 30-day mortality and post-operative …

A Retrospective Study Of The Impact Of 21-Gene Recurrence Score Assay On Treatment Choice In Node Positive Micrometastatic Breast Cancer., Thomas G Frazier, Kevin R Fox, J Stanley Smith, Christine Laronga, Anita Mcswain, Devchand Paul, +10 More

Surgery Faculty Publications

To assess clinical utility of the 21-gene assay (Oncotype DX® Recurrence Score®), we determined whether women with HER2(−)/ER+ pN1mi breast cancer with low ( vs. 57.9% in the intermediate-risk group and 100% in the high-risk group (p < 0.001). A total of 80.2% of the low-risk group were recommended endocrine therapy alone, while 77.8% of the high-risk group were recommended both endocrine and chemotherapy (p < 0.001). The Oncotype DX Recurrence Score result provides actionable information that can be incorporated into treatment planning for women with HER2(−)/ER+ pN1mi breast cancer. The Recurrence Score result has clinical utility in treatment planning for HER2(−)/ER+ pN1mi breast cancer patients.

Reduced Functional Connectivity Of Default Mode And Set-Maintenance Networks In Ornithine Transcarbamylase Deficiency., Ileana Pacheco-Colón, Stuart D. Washington, Courtney Sprouse, Guy Helman, Andrea L. Gropman, John W. Vanmeter

Neurology Faculty Publications

BACKGROUND AND PURPOSE: Ornithine transcarbamylase deficiency (OTCD) is an X-chromosome linked urea cycle disorder (UCD) that causes hyperammonemic episodes leading to white matter injury and impairments in executive functioning, working memory, and motor planning. This study aims to investigate differences in functional connectivity of two resting-state networks-default mode and set-maintenance-between OTCD patients and healthy controls.

METHODS: Sixteen patients with partial OTCD and twenty-two control participants underwent a resting-state scan using 3T fMRI. Combining independent component analysis (ICA) and region-of-interest (ROI) analyses, we identified the nodes that comprised each network in each group, and assessed internodal connectivity.

RESULTS: Group comparisons revealed …

Optical Measurement Of Skin Temperature In Mr-Hifu, Daniel Yang, Haydar Celik, Doug Wackerle, David Kinnaird, Avinash Eranki, Matthew E. Oetgen, Aerang Kim, Karun Sharma, Harry Kim, Peter Kim, Pavel Yarmolenko

Pediatrics Posters and Presentations

No abstract provided.

The Optimization Of Treatment Planning And Ablation Rate Improvements On Feasibility Of Pediatric Mr-Hifu Applications, Doug Wackerle, Haydar Celik, David Kinnaird, Daniel Yang, Avinash Eranki, Matthew E. Oetgen, Aerang Kim, Karun Sharma, Harry Kim, Peter Kim, Pavel Yarmolenko

Pediatrics Posters and Presentations

No abstract provided.

Emergency Department Ultrasound Probe Infection Control: Challenges And Solutions, Hamid A. Shokoohi, Paige Armstrong, Ryan Tansek

Emergency Medicine Faculty Publications

Point-of-care ultrasound (US) has become a cornerstone in the diagnosis and treatment of patients in the emergency department (ED). Despite the beneficial impact on patient care, concern exists over repeat use of probes and the role as a vector for pathogen transmission. US probes are used for various applications, with the level of infection risk, based on the Spaulding Classification, ranging from noncritical with common practice to semicritical with endocavitary probes. To date, the most closely studied organisms are Staphylococcus aureus and human papilloma virus. Current evidence does confirm probe colonization but has not established a causative role in human …

Educational Technology Improves Ecg Interpretation Of Acute Myocardial Infarction For Medical Students And Emergency Medicine Residents, Ali Pourmand, Mary Tanski, Steven Davis, Hamid A. Shokoohi, Raymond Lucas, Fareen Zaver

Emergency Medicine Faculty Publications

Introduction: Asynchronous online training has become an increasingly popular educational format in the new era of technology-based professional development. We sought to evaluate the impact of an online asynchronous training module on the ability of medical students and emergency medicine (EM) residents to detect electrocardiogram (ECG) abnormalities of an acute myocardial infarction (AMI).

Methods: We developed an online ECG training and testing module on AMI, with emphasis on recognizing ST elevation myocardial infarction (MI) and early activation of cardiac catheterization resources. Study participants included senior medical students and EM residents at all postgraduate levels rotating in our emergency department (ED). …

Do Emergency Department Patients Receive A Pathological Diagnosis? A Nationally-Representative Sample., Leana S. Wen, Janice A. Espinola, Joshua M. Mosowsky, Carlos A. Camargo

Emergency Medicine Faculty Publications

Introduction

Understanding the cause of patients’ symptoms often requires identifying a pathological diagnosis. A single-center study found that many patients discharged from the emergency department (ED) do not receive a pathological diagnosis. We analyzed 17 years of data from the National Hospital Ambulatory Medical Care Survey (NHAMCS) to identify the proportion of patients who received a pathological diagnosis at ED discharge. We hypothesized that many patients do not receive a pathological diagnosis, and that the proportion of pathological diagnoses increased between 1993 and 2009.

Methods

Using the NHAMCS data from 1993–2009, we analyzed visits of patients age ≥18 years, discharged …

Solving The Worldwide Emergency Department Crowding Problem - What Can We Learn From An Israeli Ed?, Jesse M Pines, Steven L Bernstein

Emergency Medicine Faculty Publications

ED crowding is a prevalent and important issue facing hospitals in Israel and around the world, including North and South America, Europe, Australia, Asia and Africa. ED crowding is associated with poorer quality of care and poorer health outcomes, along with extended waits for care. Crowding is caused by a periodic mismatch between the supply of ED and hospital resources and the demand for patient care. In a recent article in the Israel Journal of Health Policy Research, Bashkin et al. present an Ishikawa diagram describing several factors related to longer length of stay (LOS), and higher levels of ED …

Treatment Failure Outcomes For Emergency Department Patients With Skin And Soft Tissue Infections, Larissa S. May, Mark S. Zocchi, Catherine Zatorski, Jeanne A. Jordan, Richard E. Rothman, Chelsea Ware

Emergency Medicine Faculty Publications

Introduction: Skin and soft tissue infections (SSTIs) are commonly evaluated in the emergency department (ED). Our objectives were to identify predictors of SSTI treatment failure within one week post-discharge in patients with cutaneous abscesses, as well as to identify predictors of recurrence within three months in that proportion of participants. Methods: This was a sub-analysis of a parent study, conducted at two EDs, evaluating a new, nucleic acid amplification test (NAAT) for Staphylococcus aureus in ED patients. Patients≥18 years receiving incision and drainage (I and D) were eligible. Patient-reported outcome data on improvement of fever, swelling, erythema, drainage, and pain …

Mental Health Disorders In Child And Adolescent Survivors Of Post-War Landmine Explosions., Mohammad Ali Hemmati, Hamid Shokoohi, Mehdi Masoumi, Shahriar Khateri, Mohammadreza Soroush, Ehsan Modirian, Mahtab Poor Zamany Nejat Kermany, Maryam Hosseini, Batool Mousavi

Emergency Medicine Faculty Publications

BACKGROUND: To describe the mental health status of 78 child and adolescent survivors of post-war landmine explosions.

METHODS: Child and adolescent survivors of landmine explosions who were younger than 18 years old at the time of the study were identified and enrolled in this study. The mental health status of the participants was assessed by general health assessment and psychiatric examinations. Psychiatric assessment and diagnosis were undertaken using the Diagnostic and Statistical Manual for mental disorders (DSM-IV) criteria. A psychiatrist visited and interviewed each survivor and identified psychiatric disorders.

RESULTS: Seventy-eight child and adolescent survivors with a mean age of …

Telepsychiatric Assessment Of A Mariner Expressing Suicidal Ideation., Alexander Lee, Neal Sikka, Francis O'Connell, Allen Dyer, Keith Boniface, James Betz

Emergency Medicine Faculty Publications

This case report highlights the successful use of telepsychiatric consultation by secure video chat to remotely assess a mariner expressing suicidal ideation. As a result of this intervention, telemedicine providers initiated psychiatric stabilisation while the mariner was still aboard the vessel, determined that he was safe for repatriation under the care of qualified medical escorts, and facilitated admission to a psychiatric facility near his home in the United States. Mental health emergencies are a significant cause of morbidity and mortality among mariners. Telepsychiatry is a validated method of establishing a psychiatric diagnosis and disposition as well as assessing risk of …

Improving Anatomical Knowledge Through Interactive Modules On The Ob/Gyn Clinical Clerkship, Artin Galoosian, Jill A. Krapf, Kirsten Brown, Gisela Butera, Ellen F. Goldman, Rosalyn A. Jurjus

Anatomy and Regenerative Biology Faculty Posters and Presentations

The goal of this study is to evaluate the impact of a newly designed interactive method of teaching clinically relevant anatomy to medical students on the OB/GYN clerkship. A 20-question multiple-choice exam was administered to 143 consenting third-year medical students at the beginning and end of each OB/GYN rotation. Students participated in a skills lab with preparatory e-modules that linked anatomy to clinical applications during each rotation. Topics included perineal muscle anatomy (laceration), anterior abdominal wall anatomy (cesarean section), vulvovaginal and uterine anatomy (IUD), and pelvic organ, vasculature, and neural anatomy (hysterectomy). Mean scores improved significantly after the nesting of …

Insistence On Sameness Relates To Increased Covariance Of Gray Matter Structure In Autism Spectrum Disorder., Ian W Eisenberg, Gregory L Wallace, Lauren Kenworthy, Stephen J Gotts, Alex Martin

Psychiatry and Behavioral Sciences Faculty Publications

BACKGROUND: Autism spectrum disorder (ASD) is characterized by atypical development of cortical and subcortical gray matter volume. Subcortical structural changes have been associated with restricted and repetitive behavior (RRB), a core component of ASD. Behavioral studies have identified insistence on sameness (IS) as a separable RRB dimension prominent in high-functioning ASD, though no simple brain-behavior relationship has emerged. Structural covariance, a measure of morphological coupling among brain regions using magnetic resonance imaging (MRI), has proven an informative measure of anatomical relationships in typical development and neurodevelopmental disorders. In this study, we use this measure to characterize the relationship between brain …

Cervical Varices Presenting As Vaginal Bleeding: A Description Of Two Cases And A Management Plan, Kathy Chyjek, Catherine Hutz, Charles Macri, Jeffrey S. Berger, Anthony C. Venbrux, Nadia Juliet Khati, Dorothy I. Bulas, John W. Larsen

Obstetrics and Gynecology Faculty Publications

Background: Varicose veins are common in pregnancy. However, potentially life-threatening uterine cervical varices have rarely been reported and there are currently no guidelines for their management. Cases: We present two cases of cervical varices found in the setting of second and third trimester bleeding, report on the clinical outcomes and propose a management plan. Both of our patients were delivered between 38-39 weeks gestation and required interdisciplinary meetings between Obstetrics and Gynecology, Anesthesiology, Neonatology and Interventional Radiology to prepare for delivery. Conclusion: For patients in which varices are found inside the cervix, we recommend consideration of second trimester cerclage followed …

Improving Newborn Care Practices Through Home Visits: Lessons From Malawi, Nepal, Bangladesh, And Uganda., Deborah Sitrin, Tanya Guenther, Peter Waiswa, Sarah Namutamba, Gertrude Namazzi, Srijana Sharma, K. C. Ashish, Sayed Rubayet, Subrata Bhadra, Reuben Ligowe, Emmanuel Chimbalanga, Elizabeth Sewell, Kate Kerber, Allisyn Moran

Pediatrics Faculty Publications

Background: Nearly all newborn deaths occur in low- or middle-income countries. Many of these deaths could be prevented through promotion and provision of newborn care practices such as thermal care, early and exclusive breastfeeding, and hygienic cord care. Home visit programmes promoting these practices were piloted in Malawi, Nepal, Bangladesh, and Uganda.

Objective: This study assessed changes in selected newborn care practices over time in pilot programme areas in four countries and evaluated whether women who received home visits during pregnancy were more likely to report use of three key practices.

Design: Using data from cross-sectional surveys …

Percutaneous Mr Guided Direct Left Atrial Access To Deliver Large Interventional Devices, Toby Rogers, William Schenke, Jonathan R. Mazal, Merdim Sonmez, Ozgur Kocaturk, Kanishka Ratnayaka, Michael Hansen, Anthony Z. Faranesh, Robert J. Lederman

Pediatrics Faculty Publications

No abstract provided.