Internal Medicine Commons^™

Telehealth In Emergency Medicine Residency Training: A Model Curriculum, Laura Oh, Rahul Bhat, Michael J Carr, Aditi U Joshi, Bruce M Lo, Ashley C Rider, Lulu Wang, Michael C Wadman, Samuel D Luber

Faculty, Staff and Student Publications

Emergency physicians are well‐positioned to take a leadership role in telehealth, particularly in emerging categories such as triage, direct acute unscheduled care, and virtual observation. However, the growth of telehealth has outpaced curricular development in emergency medicine (EM) residency programs. This manuscript presents a model longitudinal telehealth curriculum, developed by the consensus of education experts, including representatives from the telehealth interest groups from EM's two primary specialty societies: the American College of Emergency Physicians and the Society for Academic Emergency Medicine. The curriculum describes overarching goals and components that may serve as a foundation for individual institutions seeking to train …

Ten-Year Review Of St-Segment Elevation Myocardial Infarction (Stemi) In Tanzania: A Single Center Retrospective Review, Nadeem Kassam, Mohamed Varwani, Mzee Ngunga, Jeilan Mohamed, Mangaro Mabusi, James Orwa, Salim Surani, Robert Mvungi, Nasiruddin Jamal

Internal Medicine, East Africa

Introduction: Ischemic Heart Disease (IHD) is an emerging epidemic in sub-Saharan Africa (SSA). Although the true burden may be underreported in the African continent, it still remains one of the leading causes of death among adults aged above 60 years. ST-Segment Elevation Myocardial Infarction (STEMI) is a clinically time-sensitive fatal sequela of IHD with timely reperfusion by primary Percutaneous Coronary Intervention (PCI) being the gold standard of care. There has been steady progress in coronary care services in Tanzania, alongside a rise in IHD-related risk factors. However, data on this is limited. This study aimed to examine trends in …

Breast Cancer Screening In Transgender Women With High-Risk Family History, John F. Lloyd

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report using:

de Blok CJM, Wiepjes CM, Nota NM, et al. Breast cancer risk in transgender people receiving hormone treatment: nationwide cohort study in the Netherlands. BMJ. 2019;365:l1652. https://doi.org/10.1136/bmj.l1652

for a transgender woman with family history of breast cancer.

Septal Wall Synthesis Is Sufficient To Change Ameba-Like Cells Into Uniform Oval-Shaped Cells In Escherichia Coli L-Forms, Masafumi Hayashi, Chigusa Takaoka, Koichi Higashi, Ken Kurokawa, William Margolin, Taku Oshima, Daisuke Shiomi

Faculty, Staff and Student Publications

A cell wall is required to control cell shape and size to maintain growth and division. However, some bacterial species maintain their morphology and size without a cell wall, calling into question the importance of the cell wall to maintain shape and size. It has been very difficult to examine the dispensability of cell wall synthesis in rod-shaped bacteria such as Escherichia coli for maintenance of their shape and size because they lyse without cell walls under normal culture conditions. Here, we show that wall-less E. coli L-form cells, which have a heterogeneous cell morphology, can be converted to a …

Real-World Impact Of Emicizumab And Immunosuppression On Acquired Hemophilia A: A Multicenter Us Cohort, Jacqueline N Poston, Cassandra Bryan, Annette Von Drygalski, Kadhim Al Banaa, Jenny Y Zhou, Aric Parnes, Evan C Chen, Osman Khan, Patrick Ellsworth, Lorraine Cafuir, Christopher Walsh, Miguel A Escobar, James F Wu, Lynn M Malec, Craig M Kessler, Maissaa Janbain, Rebecca Kruse-Jarres

Faculty, Staff and Student Publications

Acquired hemophilia A (AHA) is an autoimmune bleeding disorder that is caused by factor VIII (FVIII) autoantibodies with high morbidity and mortality due to bleeding and complications from immunosuppression (IST). To address the real-world implications of the FVIII mimetic antibody, emicizumab, and the role of IST, we retrospectively collected de-identified data on 62 patients with AHA who were treated off-label with emicizumab for a median of 10 weeks at 12 US-based hemophilia treatment centers. Most patients (95.2%) had acute bleeding at diagnosis, and 62.9% had partial or no control of bleeds despite the use of hemostatic agents at the time …

Optimal Management Of Patients With Moderate-To-Severe Inflammatory Bowel Disease, Tugrul Purnak, Atilla Ertan

Faculty, Staff and Student Publications

Inflammatory bowel disease (IBD), encompassing Crohn's disease (CD) and ulcerative colitis (UC), is a chronic and often debilitating condition requiring complex and individualized management. Over the past few decades, advancements in understanding IBD pathophysiology have led to a transformative shift in therapeutic approaches. This article provides a comprehensive overview of the evolution of IBD treatments, from early symptom-focused therapies to modern biologics, small molecule agents, and emerging treatment strategies. We discuss therapeutic goals centered on achieving clinical remission, endoscopic/mucosal healing, and enhancing patient quality of life. Additionally, we explore the rationale for the early and personalized use of biologic therapies …

Assessing The Impact Of Obesity On Postoperative Outcomes In Rcc Using Machine Learning, Atulya A. Khosla, Manas Pustake, Sufal Chhabra, Yanjia Zhang, Mukesh Roy, Muni Rubens, Venkataraghavan Ramamoorthy, Anshul Saxena, Ishmael A. Jaiyesimi

Conference Presentation Abstracts

Introduction Obesity is associated with an increased risk of developing renal cell carcinoma (RCC) but paradoxically correlates with improved outcomes in metastatic cases. Moreover, the data on the relationship between obesity and postoperative outcomes following nephrectomy are inconsistent. Accurate prediction of postoperative outcomes, including complications, 30-day readmissions, and mortality, is essential for improving patient outcomes in surgical procedures. In this study, we utilized ML models to predict such outcomes in RCC patients undergoing nephroureterectomy, radical nephrectomy, partial nephrectomy, and other excision procedures on the kidney using data from the National Surgical Quality Improvement Program (NSQIP; 2016- 2021). Methods A gradient-boosted …

Nusap4 Regulates Chromosome Segregation In Trypanosoma Brucei By Promoting Bipolar Spindle Assembly, Qing Zhou, Ziyin Li

Faculty, Staff and Student Publications

Faithful chromosome segregation in eukaryotes requires the assembly of a bipolar spindle and the faithful attachment of kinetochores to spindle microtubules, which are regulated by various spindle-associated proteins (SAPs) that play distinct functions in regulating spindle dynamics and microtubule-kinetochore attachment. The protozoan parasite Trypanosoma brucei employs evolutionarily conserved and kinetoplastid-specific proteins, including some kinetoplastid-specific nucleus- and spindle-associated proteins (NuSAPs), to regulate chromosome segregation. Here, we characterized NuSAP4 and its functional interplay with diverse SAPs in promoting chromosome segregation in T. brucei. NuSAP4 associates with the spindle during mitosis and concentrates at spindle poles where it interacts with SPB1 and MAP103. …

The Impact Of Diabetes Mellitus On Hiv Virologic Control: Results Of The Macs/Wihs Combined Cohort Study, Sarah C Mann, Weiqun Tong, Alison G Abraham, Frank Palella, Anjali Sharma, Phyllis C Tien, Margaret A Fischl, Samy I Mcfarlane, Cecile D Lahiri, Susan Koletar, Daniel Merenstein, Michelle Floris-Moore, Jordan E Lake, Elizabeth Daubert, Aubri Hickman, Todd T Brown, Jose Castillo-Mancilla

Faculty, Staff and Student Publications

Objective: Diabetes mellitus (DM) is associated with lower antiretroviral (ART) drug exposure among persons with HIV (PWH) compared to PWH without DM. The association between DM and virologic control in PWH, however, remains unknown.

Methods: We included participants in the Multicenter AIDS Cohort Study/Women's Interagency HIV Study Combined Cohort Study (MWCCS) who had initiated ART between 1999 and 2020 and had a suppressed HIV viral load (≤200 copies/ml) within 1 year of ART initiation. We compared the frequency of incident HIV viremia (HIV-1 RNA >200 copies/ml) between adult PWH with and without DM. Poisson regression was used to examine the …

Addressing Statistical Challenges In The Analysis Of Proteomics Data With Extremely Small Sample Size: A Simulation Study, Kyung Hyun Lee, Shervin Assassi, Chandra Mohan, Claudia Pedroza

Faculty, Staff and Student Publications

Background: One of the most promising approaches for early and more precise disease prediction and diagnosis is through the inclusion of proteomics data augmented with clinical data. Clinical proteomics data is often characterized by its high dimensionality and extremely limited sample size, posing a significant challenge when employing machine learning techniques for extracting only the most relevant information. Although there is a wide array of statistical techniques and numerous analysis pipelines employed in proteomics data analysis, it is unclear which of these methods produce the most efficient, reproducible, and clinically meaningful results.

Results: In this study, we compared 9 unique …

Need For Structured Pain Management Curriculum And Competency-Based Evaluation In Gme: An Observational Study In One Internal Medicine Residency Program, Sudhagar Thangarasu, Gowri Renganathan, Barney Soskin, Lela Ruck, Vishakh Prakash, Sumedha Unnikrishnan, Jyothsna Goranti, Everardo Cobos

School of Medicine Publications

OBJECTIVES

One of the major contributing factors to the opioid crisis, marked by a surge in opioid prescriptions, includes inadequate adherence to guideline-based pain management practices, highlighting the need for a comprehensive curriculum during residency training. In this study, we aim to assess opioid exposure prevalence among hospitalized patients and examine potential associations between disease conditions, patient demographics, and opioid prescriptions during their hospital stay.

METHODS

In this retrospective cohort study at a southern California county teaching hospital, we analyzed the medical records of 2272 patients admitted to the IM resident inpatient teaching service for 1 year, from September 2017 …

Evidence That Crispr-Cas9 Y537s-Mutant Expressing Breast Cancer Cells Activate Yes-Associated Protein 1 To Driving The Conversion Of Normal Fibroblasts Into Cancer-Associated Fibroblasts, Luca Gelsomino, Amanda Caruso, Emine Tasan, Adele Elisabetta Leonetti, Rocco Malivindi, Giuseppina Daniela Naimo, Francesca Giordano, Salvatore Panza, Guowei Gu, Benedetta Perrone, Cinzia Giordano, Loredana Mauro, Bruno Nardo, Gianfranco Filippelli, Daniela Bonofiglio, Ines Barone, Suzanne A W Fuqua, Stefania Catalano, Sebastiano Andò

Faculty, Staff and Students Publications

BACKGROUND: Endocrine therapy (ET) has improved the clinical outcomes of Estrogen receptor alpha-positive (ERɑ +) breast cancer (BC) patients, even though resistance to ET remains a clinical issue. Mutations in the hormone-binding domain of ERɑ represent an acquired intrinsic mechanism of ET resistance. However, the latter also depends on the multiple functional interactions between BC cells and the tumor microenvironment (TME). Here, we investigated how the most common Y537S-ERɑ mutation may influence the behavior of fibroblasts, the most prominent component of the TME.

METHODS: We conducted coculture experiments with normal human foreskin fibroblasts BJ1-hTERT (NFs), cancer-associated fibroblasts (CAFs), isolated from …

Management Of Covid-19 In A Patient With Kartagener Syndrome: A Case Report, Yatin Ramesh Babu, Shivani Patel, Andy Aleman Espino, Mallory Kazaleh, Hamlet Monteagudo, Odalys Frontela

HCA-NSU MD Research Day

The unprecedented global health challenge posed by COVID-19, caused by SARS-CoV-2, has driven research into its diverse clinical manifestations and underlying pathophysiological mechanisms. This report explores the interplay between pre-existing conditions, particularly Kartagener Syndrome, and COVID-19 outcomes. Kartagener Syndrome, characterized by primary ciliary dyskinesia, presents a unique perspective due to its anatomical and physiological features. The case details a 63-year-old female with Kartagener Syndrome admitted with COVID-19 symptoms. The gold-standard approach for Kartagener Syndrome involves comprehensive management strategies, including airway clearance techniques, pharmacotherapy, and surgical interventions. The patient's treatment encompassed bronchodilators, antibiotics, and subsequent improvements, leading to discharge with a …

Malignancy-Related Ascites: Thinking Outside The Liver, Nisha Chachad, Erica Pieper Do, Nisha Chachad, Ana Angeli, Pedro Bayonas Md, Jose Gonzalez-Pantaleon Md

HCA-NSU MD Research Day

Introduction. Our objective in discussing this case is to explore an approach to the various etiologies of ascites, thereby encouraging clinicians to consider extrahepatic differentials during disease management. To do so, we examined the following case of ascites in the setting of underlying malignancy. Case Presentation. An 85-year-old female presented with rapid-onset abdominal distension as well as dark stools and shortness of breath. She had also experienced progressive weakness, malaise, and weight loss over the last year. Past medical history was notable for endometriosis, hyperlipidemia, and xanthogranulomatous pyelonephritis. She was mildly tachycardic on admission. Labs were notable for leukocytosis with …

Be Suspicious Of Supplements: A Case Of Exogenous Cushing Syndrome From Hidden Ingredient, Brittany Puebla, Leidy Huie Martinez Md, Carlos Correa Md, Jose Melendez Md, Gerald Chang, Roberto Ruiz Md

HCA-NSU MD Research Day

Introduction: Cushing syndrome, resulting from hypercortisolism, can be caused by both exogenous glucocorticoid use and endogenous production. While exogenous Cushing Syndrome is usually associated with known glucocorticoid exposure, the risk of occult use through over-the-counter (OTC) supplements is a growing concern. Case Presentation: 60-year-old male presented to the ED with worsening dyspnea, bilateral lower extremity swelling, and intermittent chest pain. He was admitted for suspected congestive heart failure (CHF) exacerbation. Medical history includes obesity, hypertension, diabetes, and CHF. On day 2, a Cushinoid appearance was noted on physical exam with BLE muscle wasting, round faces, and prominent central obesity with …

Nosebleed No More: Recognizing And Diagnosing Factor Viii Inhibitor, Salam Harb, Leidy Huie Martinez Md, Jose Alvarado Md, Ajit Koli Do, Hazem Nasef Ms4

HCA-NSU MD Research Day

Acquired hemophilia is a condition characterized by the unexpected onset of severe bleeding due to an issue with coagulation factors. Typically, this disorder results from the production of autoantibodies against the Factor VIII coagulation factor. Although acquired hemophilia is an extremely rare condition, with an annual incidence of just 1.5 cases per million, it is crucial to recognize and understand it. This is because diagnosing this disorder is intricate, and if left undiagnosed and untreated, it can lead to high levels of morbidity and mortality. This case stands out as the condition typically targets older adults, with around 80% of …

When Aml Strikes Twice: A Case Of Acute Myeloid Leukemia With Concurrent Myopericarditis And Acute Pancreatitis, Veronica Benitez, Gabriella A. Morey, Veronica Benitez, Roberto H. Ruiz

HCA-NSU MD Research Day

Introduction: Acute myeloid leukemia (AML) is a hematological malignancy characterized by the proliferation of undifferentiated hematopoietic stem cells, leading to symptoms like fatigue, fever, and bleeding. While AML can infiltrate various organs, myocardial and pancreatic involvement are extremely rare, with myopericarditis and acute pancreatitis being particularly uncommon. Case Description: A 72-year-old hispanic female with a history of pancreatitis and autoimmune disorders presented with worsening lower abdominal pain, dysuria, nausea, and vomiting. Her pancreatitis resolved, but she subsequently developed chest pain and was diagnosed with acute pericarditis. Her elevated white blood cell count, predominantly monocytic, led to the diagnosis of AML …

Lifestyle Effects On An Unusual Presentation Of Syncope: A Case Report, Rishma Gattu, Nisarg Shah, Ramya Ravulapalli, Vania Rodriguez, Gary Merlino

HCA-NSU MD Research Day

Introduction: This case study explores a unique presentation of syncope with a multifactorial etiology and discusses the impact of lifestyle behaviors on syncope exacerbation. Scant literature exists on behavioral modifications affecting cardiogenic responses. Case Presentation: We present a 53 year old Hispanic male with a past history of palpitations and chronic marijuana use coming to the emergency department (ED) with three episodes of sudden loss of consciousness that occurred after starting his job as a night shift worker, which led to severe chronic sleep deprivation. These episodes lacked prodromal (chest pain, shortness of breath, palpitations, diaphoresis) and postictal (drowsiness, nausea, …

The Complex Relationship Between Tuberculosis And Hyperglycemia, Michelle Byers, Elizabeth Guy

Faculty, Staff and Students Publications

Hyperglycemia and tuberculosis are dual global pandemics. Each has a propulsive and amplifying effect on the other, and, because of this, we must consider hyperglycemia and tuberculosis together. Hyperglycemia is immunosuppressive and increases the risk of tuberculosis by threefold. It also leads to a more advanced presentation of pulmonary tuberculosis, thus increasing the likelihood of being smear positive and having cavitating lesions, and it impacts the duration and outcomes of treatment, with an increased one year mortality seen in patients with tuberculosis and diabetes. Additionally, any degree of hyperglycemia can have an impact on susceptibility to tuberculosis, and this effect …

Ephb4-Rasa1 Inhibition Of Piezo1 Ras Activation Drives Lymphatic Valvulogenesis, Di Chen, Yipei Tang, Philip E Lapinski, David Wiggins, Eva M Sevick, Michael J Davis, Philip D King

Faculty, Staff and Student Publications

BACKGROUND: EPHB4 (ephrin receptor B4) and the RASA1 (p120 Ras GTPase-activating protein) are necessary for the development of lymphatic vessel (LV) valves. However, precisely how EPHB4 and RASA1 regulate LV valve development is unknown. In this study, we examine the mechanisms by which EPHB4 and RASA1 regulate the development of LV valves.

METHODS: We used LV-specific inducible EPHB4-deficient mice and EPHB4 knockin mice that express a form of EPHB4 that is unable to bind RASA1 yet retains protein tyrosine kinase activity (EPHB4 2YP) to study the role of EPHB4 and RASA1 in LV valve development in the embryo and LV …