Medical Specialties Commons^™

Case 213: Primary Spenic Angiosarcoma, John J. Krol, Vera V. Krol, Adrian Dawkins, Halemane S. Ganesh

Radiology Faculty Publications

A 75-year-old woman with a medical history of gastroesophageal reflux disease and type II diabetes presented to the hospital with a 3-month history of gradually worsening headaches, vague upper abdominal pain, and lower back pain. The patient denied fevers, night sweats, contact with sick individuals, occupational exposure to infection, bleeding, immunodeficiency, intravenous drug use, alcohol or tobacco abuse, history of malignancy, family history of genetic disorders, and international travel. Physical examination revealed a skin-colored mass protruding from the right side of her forehead, but there were no other notable abnormalities. Her diabetes was managed with diet, and the only prescription …

Adiponectin Protects Against Paraquat-Induced Lung Injury By Attenuating Oxidative/Nitrative Stress., Rong Yao, Yaxiong Zhou, Yarong He, Yaowen Jiang, Peng Liu, Lei Ye, Zhijie Zheng, Wayne Bond Lau, Yu Cao, Zhi Zeng

Department of Emergency Medicine Faculty Papers

The specific mechanisms underlying paraquat (PQ)-induced lung injury remain unknown, which limits understanding of its cytotoxic potential. Although oxidative stress has been established as an important mechanism underlying PQ toxicity, multiple antioxidants have proven ineffective in attenuating the deleterious effects of PQ. Adiponectin, which shows anti-oxidative and antinitrative effects, may have the potential to reduce PQ-mediated injury. The present study determined the protective action of globular domain adiponectin (gAd) on PQ-induced lung injury, and attempted to elucidate the underlying mechanism or mechanisms of action. BALB/c mice were administered PQ, with and without 12 or 36 h of gAd pre-treatment. The …

Best Practices For Improving Flow And Care Of Pediatric Patients In The Emergency Department., Isabel Barata, Kathleen M. Brown, Laura Fitzmaurice, Elizabeth Stone Griffin, Sally K. Snow, American College Of Emergency Physicians Pediatric Emergency Medicine Committee, Emergency Nurses Association Pediatric Committee, Gregory P. Conners, American Academy Of Pediatrics Committee On Pediatric Emergency Medicine

Manuscripts, Articles, Book Chapters and Other Papers

This report provides a summary of best practices for improving flow, reducing waiting times, and improving the quality of care of pediatric patients in the emergency department.

Ethanol At Low Concentrations Protects Glomerular Podocytes Through Alcohol Dehydrogenase And 20-Hete., Ellen T. Mccarthy, Jianping Zhou, Ryan Eckert, David Genochio, Rishi Sharma, Olurinde Oni, Alok De, Tarak Srivastava, Ram Sharma, Virginia J. Savin, Mukut Sharma

Manuscripts, Articles, Book Chapters and Other Papers

Clinical studies suggest cardiovascular and renal benefits of ingesting small amounts of ethanol. Effects of ethanol, role of alcohol dehydrogenase (ADH) or of 20-hydroxyeicosatetraenoic acid (20-HETE) in podocytes of the glomerular filtration barrier have not been reported. We found that mouse podocytes at baseline generate 20-HETE and express ADH but not CYP2e1. Ethanol at high concentrations altered the actin cytoskeleton, induced CYP2e1, increased superoxide production and inhibited ADH gene expression. Ethanol at low concentrations upregulated the expression of ADH and CYP4a12a. 20-HETE, an arachidonic acid metabolite generated by CYP4a12a, blocked the ethanol-induced cytoskeletal derangement and superoxide generation. Ethanol at high …

Attention Test Performance And Normal Aging: The Effect On Executive Function, Rachel Carmen

Honors Program Theses

In this pilot study, twenty-nine participants completed the following three executive function tests: the Behavioral Assessment of the Dysexecutive System, the Functional Assessment of Verbal Reasoning and Executive Strategies, and Auditory Process Training. Participants, aged blank to blank, were divided into two age groups: young adults, which was comprised of 16 participants, and older adults, which was comprised of 13 participants. Performance means of the two groups were established and compared. There were no predictive qualities to the younger adults’ scores, and there were only in two FAVRES subtests for the older adults: accuracy and reasoning. Further research is needed …

The Analysis Of Diruthenium Compounds On Human Cells As Potential Chemotherapeutic Agents, Elizabeth Mcculloch

Honors Program Theses

Chemotherapy is a common method of cancer treatment, and cisplatin is a common anticancer compound used in chemotherapy. While effective, cisplatin is known to cause many side effects, and people can form resistance to it. Because of these problems, new chemotherapeutic compounds are needed. One compound that has shown anticancer properties, an ability to overcome resistance, and nontoxicity is ruthenium. Multiple mono-ruthenium compounds have been previously studied and were found to be effective. The current research project synthesized a diruthenium compound Cp₂Ru₂(bipy)₂(DMSO)₂ and exposed the compound to human liver cells (HepG2) to determine …

Analysis Of Protein Expression For Potential Biomarkers In Human Pancreatic Tumor Cell Lines, Jade Ashley Simpson

Honors Program Theses

Pancreatic cancer is an aggressive cancer of the pancreas that has been shown to have extremely low survival rates. It can be quite lethal because of its asymptomatic early stages and inability to detect cancer at the cellular level. Once diagnosed, the cancer will have usually spread or metastasized beyond surgical resection. Thus, research is focused on finding potential biomarkers in tumor cell lines to help in earlier diagnosis of this disease leading to better treatment options. Previous work using bioinformatics data suggest several cellular genes including, CTHCR1, EPPK1, AHNAK2, and IGHG3, can be potential biomarkers for pancreatic cancer. The …

Osteoporosis In Older Saudi Women: A Perspective Study, Zahra Saeed Alfaraj

Graduate Research Papers

The purpose of this research is to first discuss and discover reasons behind this increasing outburst of osteoporosis cases in older Saudi women and then to develop certain prevention strategies based on Social Cognitive Theory and this research and its reasoning, in an attempt to check the rapid increase of this disease in menopausal Saudi women. All of these targets can be achieved by an in-depth study of osteoporosis, and then applying this knowledge toward prevention of the disease.

Bordetella Petrii Recovered From Chronic Pansinusitis In An Adult With Cystic Fibrosis, Laura Biederman, Marc Rosen Md, Brent S. Bobik, Amity L. Roberts, Phd, D(Abmm)

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

No abstract provided.

Urological Pathology, Andrew Renshaw

All Publications

No abstract provided.

An Analysis Of Cognitive Factors In School-Aged Children With Emotional Disturbance And Adhd Using The Wisc-Iv, Maria Fragnito Maddalo

PCOM Psychology Dissertations

Children with Emotional Disturbance and ADHD demonstrate social, emotional, and behavioral symptoms that present many challenges for School Psychologists because of differences between each student’s individual needs. A high level of comorbidity exists for these children with internalizing and externalizing symptoms. Little is known about neurocognitive factors as they relate to ED versus ADHD. The current study examined the cognitive profiles of a total of 58 children with ED versus ADHD, using the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV). Index scores that were examined included Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed. The groups were compared …

Adhd Versus Ptsd In Preschool-Aged Children: Implications For Misdiagnosis, Klaudette D. Stewart

PCOM Psychology Dissertations

Attention Deficit Hyperactivity Disorder (ADHD) has been one of the most diagnosed disorders in children since it was included in the Diagnostic and Statistical Manual of Mental Disorders−III (DSM−III) in 1980. The number of children who have been diagnosed since that time has grown significantly, raising concerns about the overwhelming number of young children being diagnosed and prescribed medication. According to the literature, young children are diagnosed at a higher rate by pediatric primary care physicians (PCPs) than clinical child psychologists (CCPs) because they are taken to a PCP’s office by a parent, rather than referred from a school environment, …

Kimura’S Disease Of Head And Neck: A Rare Case Presentation, Talha Ahmed Qureshi, Moghira Siddiqui, Muhammad Tariq

Department of Surgery Docs

Kimura's disease (KD) is a rare, unusual occurrence, predominantly seen in Asian men, and poses a diagnostic challenge, often manifesting with allergic, eosinophilic hyperplasia, and nonspecific lymphadenitis. A 39-year-old man presented with mobile, well circumscribed, facial and neck swelling. His earlier biopsy showed a reactive lymph node hyperplasia on ultrasound neck and was suggestive of lipomatosis. As definitive diagnosis could not be made, the patient was planned for excision and biopsy. Subsequent histopathology demonstrated eosinophilic infiltration of lymphoid follicles and expansion of interfollicular area with interfollicular eosinophilic abscess formation and capillary venule proliferation. This was quite interesting as the previously …

Psychobiobehavioral Model For Preterm Birth In Pregnant Women In Low- And Middle-Income Countries, Shahirose S. Premji, Ilona S. Yim, Aliyah Dosani (Mawji), Zeenatkhanu Kanji, Salima Sulaiman, Wangira Musana, Pauline Samia, Kiran Shaikh, Nicole Letourneau

School of Nursing & Midwifery, East Africa

Preterm birth (PTB) is a final common outcome resulting from many interrelated etiological pathways; of particular interest is antenatal psychosocial distress (i.e., stress, anxiety, and depression). In LMI countries, both exposure to severe life stressors and rate of PTB are on average greater when compared with high-income countries. In LMI countries women are exposed to some of the most extreme psychosocial stress worldwide (e.g., absolute poverty, limited social resources). High prevalence of antenatal stress and depression have been observed in some studies from LMI countries. We propose a psychosocial, biological, and behavioral model for investigating the complex multisystem interactions in …

Patterns Of Barbell Acceleration During The Snatch In Weightlifting Competition, Kristof Kipp, Chad Harris

Exercise Science Faculty Research and Publications

The purpose of this study was to determine the association between weightlifting performance and vertical barbell acceleration patterns. Barbell kinematic time-series data were tracked from 18 snatches from six weightlifters during a regional weightlifting competition. These data were used to calculate vertical barbell accelerations. Time-series data were normalised to 100% of lift phase, defined as the time interval between barbell lift-off and maximum height of the barbell during each snatch lift. The time-series data were then entered into a pattern recognition algorithm that extracted principal patterns and calculated principal pattern scores. Body mass-normalised lift weight, which was used to quantify …

Trunk Postural Control In Unstable Sitting: Effect Of Sex And Low Back Pain Status, Christian Larivière, Dany H. Gagnon, Hakim Mecheri

Études primaires

Background

Adequate neuromuscular control of the lumbar spine is required to prevent lumbar injuries. A trunk postural control test protocol, controlling for the influence of body size on performance, was implemented to carry out between-subject comparisons. The aim of this study was to assess the effect of sex and low back pain status with the use of two measures of trunk postural control, the first based on chair motion, and the second based on trunk motion.

Methods

Thirty-six subjects (with and without low back pain) performed three 60-s trunk postural control trials with their eyes closed while seated on an …

Gene Expression Changes Reflect Clinical Response In A Placebo-Controlled Randomized Trial Of Abatacept In Patients With Diffuse Cutaneous Systemic Sclerosis, Eliza F. Chakravarty, Viktor Martyanov, David Fiorentino, Tammara A. Wood, David J. Haddon, Justin A. Jarrell, Paul Utz, Mark Genovese, Michael Whitfield, Lorinda Chung

Dartmouth Scholarship

Systemic sclerosis is an autoimmune disease characterized by inflammation and fibrosis of the skin and internal organs. We sought to assess the clinical and molecular effects associated with response to intravenous abatacept in patients with diffuse cutaneous systemic.

Quantitative Spatial Frequency Fluorescence Imaging In The Sub-Diffusive Domain For Image-Guided Glioma Resection, Mira Sibai, Israel Veilleux, Jonathan T. Elliott, Frederic Leblond, Brian Wilson

Dartmouth Scholarship

Intraoperative 5- aminolevulinic acid induced-Protoporphyrin IX (PpIX) fluorescence guidance enables maximum safe resection of glioblastomas by providing surgeons with real-time tumor optical contrast. However, visual assessment of PpIX fluorescence is subjective and limited by the distorting effects of light attenuation and tissue autofluorescence. We have previously shown that non-invasive point measurements of absolute PpIX concentration identifies residual tumor that is otherwise non-detectable. Here, we extend this approach to wide-field quantitative fluorescence imaging by implementing spatial frequency domain imaging to recover tissue optical properties across the field-of-view in phantoms and ex vivo tissue.

Nonthermal Atmospheric Pressure Plasma Enhances Mouse Limb Bud Survival, Growth, And Elongation., Natalie Chernets, Jun Zhang, Marla J Steinbeck, Deepa S Kurpad, Eiki Koyama, Gary Friedman, Theresa A. Freeman

Department of Orthopaedic Surgery Faculty Papers

The enhanced differentiation of mesenchymal cells into chondrocytes or osteoblasts is of paramount importance in tissue engineering and regenerative therapies. A newly emerging body of evidence demonstrates that appendage regeneration is dependent on reactive oxygen species (ROS) production and signaling. Thus, we hypothesized that mesenchymal cell stimulation by nonthermal (NT)-plasma, which produces and induces ROS, would (1) promote skeletal cell differentiation and (2) limb autopod development. Stimulation with a single treatment of NT-plasma enhanced survival, growth, and elongation of mouse limb autopods in an in vitro organ culture system. Noticeable changes included enhanced development of digit length and definition of …

Factors Supporting And Inhibiting Adherence To Hiv Medication Regimen In Women: A Qualitative Analysis Of Patient Interviews., Oluwakemi Fagbami, Adetokunbo Oluwasanjo, Carrie Fitzpatrick, Rebecca Fairchild, Ann Shin, Anthony Donato

Reading Hospital Internal Medicine Residency

Adherence to antiretroviral therapy reduces morbidity and mortality; however rates of non-adherence are variable among women for unclear reasons. This study was a single-center qualitative analysis of interviews with 18 female HIV-positive non-adherent patients (defined by virologic failure) to explore psychosocial factors impacting adherence. Factors identified were categorized as promoting, inhibiting or having no effect on adherence. Three themes, characterized as social factors, illness factors and other societal pressures, were identified. Medical systems support, family support and compliance for children were most commonly identified as promoting adherence, while psychiatric comorbidities, lack of medical systems support and side effects were identified …

Job Stress Among Female Residents During Postgraduate Training At A University Hospital In Karachi, Pakistan, Madiha Hashmi, Fauzia A. Khan, Khan S, Ali S. K

Department of Anaesthesia

Background: Postgraduate medical training is a stressful experience for both male and female doctors but previous studies have shown that stress might be more prevalent amongst female residents. Since women make up 70-80% of medical graduates in Pakistan we conducted this study to determine the prevalence of stress among female residents during postgraduate training and identify the most common stressors.

Methodology: All female residents enrolled in postgraduate training programmes at the Aga Khan University meeting the inclusion criteria were recruited and informed written consent was obtained. Job Stress Inventory (JSI) was used to identify symptoms and sources of job stress. …

Perioperative And Acute Care Transesophageal Echocardiography (Toe), Madiha Hashmi

Department of Anaesthesia

In Pakistan perioperative transoesophageal echocardiography (TOE) during cardiac surgery is available in a few centers with reliance on cardiologists and cardiac technicians and its use in noncardiac surgery and intensive care units is very limited. In view of the increasing popularity of TOE based on obvious benefits this review is presented with an aim to evaluate the current indications and potential benefits of using TOE during anesthesia for cardiac and non-cardiac surgery and the intensive care units and compare TOE with pulmonary artery catheter (PAC) and transthoracic echocardiography (TTE) as an hemodynamic monitor in the acute care setting.

Developing Local Guidelines For Management Of Sepsis In Adults: Sepsis Guidelines For Pakistan (Sgp), Madiha Hashmi, Fazal Hameed Khan, Sarwar Zubairi, S. Tipu Sultan, Saeeda Haider, Sadqa Aftab, Javed Husain, Anwar Ul Haq, Zahid Akhtar Rao, Amin Khuwaja, Syed Farjad Sultan, Zunairah Rais, Roohina Baloch, Naseem Salahuddin, Aslam Khan, Faisal Sultan, Kamran Chima, Amjad Ali, Gohar Ali

Department of Anaesthesia

Background: The purpose of developing ‘Sepsis Guidelines for Pakistan’ (SGP) is to provide clinicians practicing in local hospitals with a framework to aid timely recognition and management of adult patients in sepsis by adopting evidence-based recommendations of Surviving Sepsis Campaign (SSC) tailored to available resources. These recommendations are not meant to replace the SSC Guidelines.
Methodology: SGP is an initiative of Pakistan Society of Critical Care Medicine (PSCCM). Four key decision points to be addressed in the guidelines were identified by a thirteen member multidisciplinary committee i.e., grading the hospitals in the country, recognition of sepsis and associated organ dysfunction, …

Human Rights In The New Global Strategy., Jyoti Sanghera, Lynn Gentile, Imma Guerras-Delgado, Lucinda O’Hanlon, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

The Global Strategy for Women’s and Children’s Health (2010), with its emphasis on participatory decision making processes, non-discrimination, and accountability, affirmed the importance of human rights. Despite important gains following its launch women, children, and adolescents continue to experience serious violations of their health and health related human rights, including discrimination in access to quality healthcare. A human rights based approach must thus be fully integrated throughout the Global Strategy.

The right to health is recognised by several legal tools and treaties relating to human rights, including the International Covenant on Economic, Social and Cultural Rights; the Convention on the …

Women’S Health Priorities And Interventions, Marleen Temmerman, Rajat Khosla, Laura Laski, Zoe Mathews, Lale Say

Obstetrics and Gynaecology, East Africa

Over the past decades, governments have taken steps towards improving women’s health in line with commitments made in key international summits. Progress has been made in reducing maternal mortality,1 which accelerated with the launch of the United Nations secretary general’s Global Strategy for Women’s and Children’s Health in 2010. Use of maternal healthcare and family planning has increased in some countries.2 Progress has also been seen on two determinants of women’s health—school enrolment rates for girls and political participation of women—but not for others such as gender based violence.3

However, societies are still failing women in relation to health, especially …

How To Assess Success Of Treatment When Using Multiple Doses: The Case Of Misoprostol For Medical Abortion., Armando H. Seuc, Iqbal H. Shah, Moazzam Ali, Claudia Diaz-Olavarrieta, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Background: The assessment of treatment success in clinical trials when multiple (repeated) doses (courses) are involved is quite common, for example, in the case of infertility treatment with assisted reproductive technology (ART), and medical abortion using misoprostol alone or in combination with mifepristone. Under these or similar circumstances, most researchers assess success using binomial proportions after a certain number of consecutive doses, and some have used survival analysis. In this paper we discuss the main problems in using binomial proportions to summarize (the overall) efficacy after two or more consecutive doses of the relevant treatment, particularly for the case of …

Global Estimates Of The Prevalence And Incidence Of Four Curable Sexually Transmitted Infections In 2012 Based On Systematic Review And Global Reporting, Lori Newman, Jane Rowley, Stephen Vander Hoorn, Nalinka Saman Wijesooriya, Magnus Unemo, Nicola Low, Gretchen Stevens, Sami Gottlieb, James Kiarie, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Background: Quantifying sexually transmitted infection (STI) prevalence and incidence is important for planning interventions and advocating for resources. The World Health Organization (WHO) periodically estimates global and regional prevalence and incidence of four curable STIs: chlamydia, gonorrhoea, trichomoniasis and syphilis.

Methods and Findings: WHO’s 2012 estimates were based upon literature reviews of prevalence data from 2005 through 2012 among general populations for genitourinary infection with chlamydia, gonorrhoea, and trichomoniasis, and nationally reported data on syphilis seroprevalence among antenatal care attendees. Data were standardized for laboratory test type, geography, age, and high risk subpopulations, and combined using a Bayesian meta-analytic approach. …

Low-Grade Serous Carcinoma – The Clinical Challenge, Khadija Warfa, Martin Kobel, Prafull Ghatage, Gregg Nelson

Obstetrics and Gynaecology, East Africa

Low-grade serous carcinoma is one of the five major histological types of ovarian carcinoma associated with a specific biology. We reviewed three cases from our institution to demonstrate the variable clinical course and provide a brief review on this disease entity.

Assessing Predictors Of Contraceptive Use And Demand For Family Planning Services In Underserved Areas Of Punjab Province In Pakistan: Results Of A Cross-Sectional Baseline Survey, Syed Khurram Azmat, Moazzam Ali, Muhammad Ishaque, Ghulam Mustafa, Waqas Hameed, Omar Farooq Khan, Ghazunfer Abbas, Marleen Temmerman, Erik Munroe

Obstetrics and Gynaecology, East Africa

Background: Although Pakistan was one of the first countries in Asia to launch national family planning programs, current modern contraceptive use stands at only 26% with a method mix skewed toward short-acting and permanent methods. As part of a multiyear operational research study, a baseline survey was conducted to understand the predictors of contraceptive use and demand for family planning services in underserved areas of Punjab province in Pakistan. This paper presents the baseline survey results; the outcomes of the intervention will be presented in a separate paper after the study has been completed.

Method: A cross-sectional baseline household survey …

Implementation Of Point-Of-Care Diagnostics Leads To Variable Uptake Of Syphilis, Anemia And Cd4+ T-Cell Count Testing In Rural Maternal And Child Health Clinics, Caroline De Schacht, Carlota Lucas, Nádia Sitoe, Rhoderick Machekano, Patrina Chongo, Marleen Temmerman, Ocean Tobaiwa, Laura Guay, Seble Kassaye, Ilesh V. Jani

Obstetrics and Gynaecology, East Africa

Introduction: Anemia, syphilis and HIV are high burden diseases among pregnant women in sub-Saharan Africa. A quasi-experimental study was conducted in four health facilities in Southern Mozambique to evaluate the effect of point-of-care technologies for hemoglobin quantification, syphilis testing and CD4+ T-cell enumeration performed within maternal and child health services on testing and treatment coverage, and assessing acceptability by health workers.

Methods: Demographic and testing data on women attending first antenatal care services were extracted from existing records, before (2011; n = 865) and after (2012; n = 808) introduction of point-of-care testing. Study outcomes per health facility were compared …