Internal Medicine Commons^™

Streamlining Stroke Care: Optimizing In-House Stroke Alert Order Set Utilization, Drashti Desai, Joshua Shultz, Yu Ya Nway, Hasib Ibne-Rasa

North Florida Division GME Research Day 2025

No abstract provided.

Phentermine Induced Thrombocytopenia, Claudia Thornton, Jack Demirjian, Jason Pereira, Juan Nunez Rodriguez

Central & West Texas and San Antonio GME Research Day 2025

No abstract provided.

A Vaping Nightmare: Sudden Death Provoked By Vaping In The Setting Of Pectus Excavatum, Anoop Gala, Nga Van, Grace Rustom, Danielle Ford, Phuc Nguyen

North Texas Research Forum 2025

Pectus excavatum (PE), characterized by an inward depression of the sternum, is the most common congenital chest wall abnormality. It has been rarely linked to cardiac abnormalities, such as arrhythmias and sudden cardiac arrest (SCA). In addition, emerging research suggests that vaping is a cardiovascular risk factor that has the potential to destabilize cardiac rhythm and promote arrhythmias. There is a lack of FDA oversight and long-term research on the effects of vaping. The rising popularity of vaping among youth, coupled with misconceptions about its safety, underscores the urgent need to understand the potential interactions vaping has in precipitating fatal …

Bradycardia In A Renal Transplant Patient Receiving Rabbit Antithymocyte Globulin, John Mathew, Victor Delprincipe, Seline Haci, Karthik Anand, Rangina Farhad

North Texas Research Forum 2025

Rabbit antithymocyte globulin (rATG) is widely used for induction and treatment of acute T-cell mediated rejection in renal transplant patients. Bradycardia is reported as a rare side effect of this medication (citation). With the increasing number of transplanted kidneys in today's world, there is greater need to understand the adverse effects of these drugs in transplant recipients.. Here we report a case of symptomatic bradycardia in a renal transplant patient receiving rATG for acute T-cell mediated rejection.

Streptococcus Intermedius In The Setting Of Adalimumab Use, Gerardo Martinez Arroyo, Amelia Mellor, Joseph Prokop, Oscar Garcia

Central & West Texas and San Antonio GME Research Day 2025

No abstract provided.

Exploring The Link Between Covid-19 And Transverse Myelitis: A Case Report, Sara Sanghera, Trivianne Franklin, Veeranna Vibhuti, Danielle Ford

North Texas Research Forum 2025

Transverse myelitis (TM) is a rare inflammatory syndrome of the spinal cord that is often attributed to immune-mediated responses which lead to demyelination and the resultant varying degrees of motor, sensory, and autonomic dysfunction. While COVID-19 virus itself is known to present with anosmia, ageusia and Guillian Barre syndrome, a few rare cases of COVID-virus related TM have been reported. This case presents a 61-year-old female experiencing bilateral lower extremity weakness with brisk to absent reflexes. Onset of the symptoms was of 3 days origin, and she was tested positive for COVID-19. Patient did not have upper extremity symptoms but …

Hypothyroidism Associated Hyponatremia, A Complicated Presentation, Gary Lee, Spencer Steinberg, Samiuallh Shahid, Evangelista Ezenduka, Edgardo Flores

North Texas Research Forum 2025

Introduction: Hypothyroidism is a well known text-book cause of euvolumic hyponatremia that is a rare occurrence in clinical practice in the absence of other potential etiologies of hyponatremia. We review a case of a 48 year old female presenting with profound generalized weakness found to have severe hyponatremia, later found to have severe hypothyroidism during admission. We review the potential mechanisms whereby hypothyroidism results in hyponatremia and whether or not hypothyroidism-induced hyponatremia truly exists and the current evidence supporting these views Case Presentation: 48 year old female with history of hypothyroidism, breast cancer post right lumpectomy and radiation presented for …

Has The Elimination Of Mandatory Buprenorphine X-Waiver Increased Presciptions Of This Medication Upon Discharge From The Hospital?, Kendall Moore, Robyn Meadows, Robyn Hoelle, Matthew Calestino

North Florida Division GME Research Day 2025

No abstract provided.

Adverse Bleeding Events In Patients Taking Verapamil With Apixaban Or Rivaroxaban, Heena Patel, Franklin Hernandez, Kathleen Mattingly, Seth Sukriti, Chandan Mitra

North Florida Division GME Research Day 2025

No abstract provided.

Association Of Glp-1 Receptor Agonist With Risk Of Hepatocellular Carcinoma, Joane Titus, Vinay Katukuri, Moheb Boktor, Ishak Mansi

North Florida Division GME Research Day 2025

No abstract provided.

Development Of A Continous Renal Replacement Therapy Protocol For A Midsize Community Hospital, Srinidhi Shyamkumar, Eric Riha, Crystal Ike, Rachel Wright, D Villareal, Justin Shanks, Damon Cao

Gulf Coast Division GME Research Day 2025

No abstract provided.

A Case Of Gastric Outlet Obstruction Secondary To A Gallstone, Mahesh Tummala, Adam Devine, Akash Tummala, Livasky Concepcion-Perez

East Florida Division GME Research Day 2025

Introduction: Bouveret syndrome is characterized by a gallstone passing through a bilioenteric fistula causing gastric outlet obstruction and represents 1-3% of gallstone obstructions. Fistualization occurs when chronic inflammation from the gallstone on the gallbladder wall leads to ischemia and perforates into the bowel. Over 60% of patients with cholelithiasis are asymptomatic. Biliary colic is the most common presentation in symptomatic patients. A biliary fistula occurs in 3-5% of cases and just 7-10% of these cases lead to gallstone ileus. The highest prevalence is among women of advanced age. Typical presentation is with general symptoms of nausea/vomiting and vague abdominal pain. …

Cocaine Induced Agranulocytosis And Neutropenia, Maria Gomez Alvarez, Ashish Govan, Raymond Larocque

East Florida Division GME Research Day 2025

Introduction: Cocaine use in the United states is seen in many cases within the hospital system. Typically, they present with tachycardia, hypertension, sweating, even heart attack. Due to the uncontrolled sale and distribution of drugs, patients can be exposed to other additives in drugs which can lead to unexpected complications. Cocaine laced with levamisole (an antiparasitic drug used in veterinary medicine) can lead to agranulocytosis and neutropenia. Cocaine being the second most used illegal drug following marijuana it may be much more common than we think. Millions of individuals use cocaine yearly and develop a heavy addiction with use of …

National Outcomes Of Pre-Emptive Tips In Patients With Acute-On-Chronic Liver Failure And Variceal Bleeding, Aya Akhras, Waseem Wahood, Azizullah Beran, Bisher Sawaf, Asad Ur Rahman, David Goldberg, Muhammed U. Shahid

East Florida Division GME Research Day 2025

Background

Pre-emptive transjugular intrahepatic portosystemic shunt (pTIPS), defined as placement within 72 hours of initial endoscopic therapy for an active variceal bleed, has been proposed as a strategy to reduce rebleeding and improve survival in high-risk patients with cirrhosis. We evaluated outcomes of patients with acute-on-chronic liver failure (ACLF) who presented with variceal bleeding and underwent therapeutic endoscopy (EGD) with or without the addition of pre-emptive TIPS.

Methods

The Nationwide Readmissions Database (2010–2022) was queried for patients with ACLF using previously validated algorithms admitted with variceal upper GI bleeding who received endoscopic intervention. Patients were stratified into two groups: therapeutic …

The Role Of Bandemia In Clinical Outcomes Of Critically Ill Septic Patients., Yerandi Gil, Grettel Gonzalez Garcia, Ambar Sekulis, Rafael Miret, Siddarth Kathuria, Mauricio Danckers, Daniel Heller

East Florida Division GME Research Day 2025

Rationale: Bandemia, defined as the presence of immature neutrophils in circulation, is commonly used as an early marker of systemic inflammation and infection. 1 However, its prognostic significance in sepsis, severe sepsis, and septic shock remains uncertain. 1-2 This study aimed to determine whether bandemia is associated with adverse clinical outcomes and increased intensive care unit (ICU) resource utilization among critically ill septic patients admitted from the emergency department (ED).

Methods: A retrospective analysis was conducted using de-identified data from the HCA Healthcare database. Adult patients (aged 18–90 years) admitted to the ICU at HCA Florida Aventura Hospital from the …

Turmeric, Red Yeast Paste, And Statins: A Recipe For Dili, John V. Nahas, Sinay Ceballos, Franklin Kasmin

East Florida Division GME Research Day 2025

Introduction Drug induced liver injury (DILI) contributes to a significant portion of acute liver injuries and acute liver failure in the west. DILI accounts for approximately 11% of acute liver failure cases in the US according to ACG. Insulting agents are numerous and well documented in the NIH LiverTox database, however the rarity and complexity of individual agents is a matter of ongoing study. Case Description/Methods A 52 year old man with PMH of HTN and HLD presents for a 2 week history of abdominal swelling, bilateral lower extremity swelling, decreased appetite, and positional shortness of breath. He endorses occasionally …

Pseudoachondroplasia, A Case Report (Preprint), Alec J. Pupo, Connor J. Stinson, Autumn Dye

Internal Medicine Resident Research

No abstract available.

Wearable-Derived Heart Rate Variability Reveals Autonomic Dysfunction In Schizophrenia (Preprint), Alec J. Pupo, Stephanie H. Felgoise

Internal Medicine Resident Research

Autonomic dysfunction has long been implicated in schizophrenia, yet objective physiological markers remain underutilized in psychiatric research. Heart rate variability (HRV), a noninvasive measure of autonomic regulation, is conventionally derived from short electrocardiographic recordings. In this study, we tested whether continuous, wearable-derived HRV can identify physiologic alterations in schizophrenia-spectrum disorders. Using the NIH All of Us database, we analyzed second-level Fitbit heart rate data from 26 individuals with schizophrenia-spectrum diagnoses and 26 matched controls. Frequency-domain analyses focused on ultra-low frequency (ULF), very low frequency (VLF), and truncated low frequency (tLF) bands, given sampling constraints. Schizophrenia participants showed significantly reduced power …

Elevated Neutrophil-To-Lymphocyte Ratios In Schizophrenia: Insights From A Precision Medicine Cohort (Preprint), Alec J. Pupo, Connor J. Stinson, Chinwendu Madukwe, Stephanie H. Felgoise

Internal Medicine Resident Research

Systemic inflammation has been increasingly implicated in the pathophysiology of schizophrenia. The neutrophil-to-lymphocyte ratio (NLR), a readily available marker of systemic inflammation, has not been thoroughly investigated in large, demographically-matched schizophrenia cohorts. Using data from the All of Us Research Program, we analyzed participants with schizophrenia (n = 396) matched to controls (n = 396) by sex, race, and age. NLR was calculated as the ratio of each participant’s median neutrophil count to median lymphocyte count across all available measurements, excluding extreme values (NLR > 7). Distribution normality was assessed using the Shapiro–Wilk test, and group differences were evaluated with the …

Barriers To Adherence To Standard Of Care In Appalachia: A Qualitative Assessment In Gastrointestinal Cancers, Brittany Levy, Jennifer T. Castle, Roshmita Bardhan, Mark Dignan, Avinash S. Bhakta

Internal Medicine Faculty Publications

Purpose: Appalachian Kentucky, a 32-county region in the eastern part of the state, has elevated colon cancer mortality rates. While recommended as the standard of care, access to adjuvant chemotherapy treatment is limited in this region due to scarce health services and significant social and geographical barriers. The purpose of this investigation was to improve understanding of barriers that cancer patients residing in rural areas not served directly by tertiary medical systems must overcome in completing adjuvant therapy.

Methods: Participants were recruited from two medical centers: A tertiary care NCI designated Cancer Center and a regional hospital. Participants underwent a …

Circulating Molecular Drivers Of Bone Remodeling In Pancreatitis, Rachel L. Hill, Dhiraj Yadav, Phil A. Hart, David C. Whitcomb, Kristen J. Mcquerry, Kelsey N. Karnik, Kimberly M. Stello, Darwin L. Conwell, Madhumathi Rao

Internal Medicine Faculty Publications

INTRODUCTION: 

Pancreatitis-associated osteopathy is a clinically significant but mechanistically underexplored complication of pancreatic disease. We aimed to characterize stage-specific alterations in bone remodeling biomarkers across the spectrum of disease: recurrent acute pancreatitis (RAP) and chronic pancreatitis (CP).

METHODS: 

In a cross-sectional analysis of North American Pancreatitis Study 2 participants, we measured serum mechanistic (sclerostin, dickkopf-1, receptor activator of nuclear factor κβ ligand, and osteoprotegerin), hormonal (fibroblast growth factor 23, insulin, and leptin), and modulatory (osteopontin, oncostatin, and osteoactivin) markers in controls (n = 30), RAP (n = 40), and CP (n = 40) using a multiplex assay. Group differences were …

Digital Health Interventions For Colorectal Cancer Screening Uptake: A Scoping Review, Sujin Kim, Andrew J. Whipkey, Jihye Bae, Avinash S. Bhakta

Internal Medicine Faculty Publications

Digital health interventions (DHIs) are increasingly employed to improve colorectal cancer (CRC) screening uptake, yet comprehensive syntheses of their effectiveness across diverse contexts remain scarce. This scoping review examines how individual, contextual, technological, and timing-related factors shape CRC screening outcomes in DHI-based trials. Following PRISMA-ScR guidelines, we conducted a systematic search of PubMed, Google Scholar, and ClinicalTrials.gov from March 1 to April 20, 2024, identifying 4,523 records through databases and an additional 2,039 through backward citation tracking. After deduplication and screening, 51 studies were included and charted using the PICOT (Population, Intervention, Comparison, Outcome, and Timing) framework. Included studies spanned …

Early-Onset Bevacizumab-Associated Knee Osteonecrosis In A Young Adult With Astrocytoma, Chandra L. Kakarala, Nicole A. Lisek, Clyde Coleman, John L. Villano, Katherine L. Copely, Patricia A. Santos

Internal Medicine Faculty Publications

We describe a rare case of knee osteonecrosis in a 22-year-old man with astrocytoma and neurofibromatosis type 1 after short-term treatment with bevacizumab and corticosteroids. Magnetic resonance imaging (MRI) identified infarctions and osteonecrosis of the distal femur and proximal tibia. Osteonecrosis associated with bevacizumab is typically limited to the jaw; this case highlights the potential for earlier, extra-jaw involvement. Clinicians should maintain a high index of suspicion for osteonecrosis in patients on vascular endothelial growth factor inhibitors, especially with concurrent steroid use, and consider prompt MRI in the evaluation of unexplained joint pain.

Bundled Approach To Improve Colorectal Cancer In Primary Care, Elizabeth Reddiar

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Abstract

Background: Colorectal cancer (CRC) remains the second leading cause of cancer-related deaths in the United States, despite being preventable through timely screening. National guidelines recommend regular screening for adults aged 45 to 75; (American cancer Society (ACS), 2025) however, screening rates remain suboptimal, particularly in primary care settings serving diverse and high-volume populations. Local Problem: At the project site, a community-oriented primary care clinic in North Texas, baseline data revealed CRC screening completion rates were below benchmarks set by the organization. Barriers included limited patient awareness, inconsistent provider reminders, and workflow challenges in distributing and tracking fecal immunochemical test …

Recombinant Factor Viia: New Insights Into The Mechanism Of Action Through Product Innovation, Miguel A Escobar, Maureane Hoffman, Giancarlo Castaman, Cedric Hermans, Johnny Mahlangu, Johannes Oldenburg, Charles L Percy, Mark T Reding, Amy D Shapiro, Steven W Pipe

Faculty, Staff and Student Publications

Management of bleeding in persons with hemophilia and inhibitors involves treatment with bypassing agents, including recombinant activated factor VII (rFVIIa). Two rFVIIa products are commercially approved for use in the United States and the European Union. Eptacog alfa and eptacog beta share the same amino acid sequence but differ in posttranslational modifications. Although rFVIIa has been used to manage bleeding in persons with hemophilia and inhibitors for over 30 years, its mechanisms of action is still being studied. In vitro and in vivo studies have suggested that rFVIIa could promote hemostasis by (1) increasing tissue factor-dependent activation of factor (F)X …

All-Cause And Exacerbation-Related Readmissions In Thrombotic Microangiopathy Requiring Plasmapheresis: A Population-Based Cohort Study, Alexander R. Thebert, Toru Yoshino, Sae X. Morita, Misa Ito, Ayman Qasrawi, Hirotaka Kato

Internal Medicine Faculty Publications

Objective: Thrombotic microangiopathy (TMA) is a serious condition characterized by microangiopathic hemolytic anemia and thrombocytopenia, with high exacerbation rates. This study examined all-cause and exacerbation-related readmission risks among patients hospitalized with TMA requiring plasmapheresis.

Materials and Methods: Secondary analysis of the 2020 Nationwide Readmission Database was conducted, including discharge data from non-federal hospitals in 31 U.S. states. Patients aged 18 years or older admitted non-electively with a primary or secondary diagnosis of TMA requiring plasmapheresis were included. Exacerbation-related readmission was defined as subsequent admission requiring plasmapheresis within 7 or 30 days after the original discharge. Multivariable logistic regression and Cox …

Clonal Hematopoiesis Of Indeterminate Potential And The Risk Of Cognitive Impairment In The Women’S Health Initiative Memory Study, Yasminka A. Jakubek, Aaron P. Smith, Xiaoyan I. Leng, Megan E. Hall, Daniel Ezzat, Yash Pershad, Jason M. Collins, Md Mesbah Uddin, David W. Fardo, Pradeep Natarajan, Alexander G. Bick, Jacob O. Kitzman, Michael C. Honigberg, Kathleen M. Hayden, Joann E. Manson, Siddhartha Jaiswal, Eric A. Whitsel, Alexander P. Reiner

Internal Medicine Faculty Publications

INTRODUCTION

Clonal hematopoiesis of indeterminate potential (CHIP) confers an increased risk of several chronic aging-related diseases. Paradoxically, CHIP was associated with lower risk of dementia in recent studies.

METHODS

We examined associations between baseline CHIP and incident mild cognitive impairment (MCI) and/or probable dementia in the Women's Health Initiative Memory Study. CHIP was detected using blood-based targeted sequencing. Cox proportional hazards models examined time to onset of cognitive impairment, adjusting for traditional risk factors.

RESULTS

Using a conventional variant allele fraction (VAF) threshold of 2%, CHIP was not associated with incident cognitive impairment. The presence of larger CHIP clone (VAF …

Dual Biologic Therapy Induces Remission In Refractory Crohn’S Disease With Vedolizumab And Ustekinumab, Syed Adeel Hassan, Courtney Perry, Patrick Carey, Durham Colohan, Mohamed Gebril Eltaher, Nabila Dawoud, Mahmoud Elkammar, Waqas Rasheed, Casie Mayne, Amy Stuffelbeam, Deborah R. Auer Flomenhoft, Terrence A. Barrett

Internal Medicine Faculty Publications

Background

Despite advancements in the therapeutic armamentarium for Crohn’s disease (CD), biologic and small molecule monotherapies are associated with sub-optimal response and remission rates. Utilizing dual biologic therapy (DBT) holds the potential to increase efficacy in the treatment of refractory or partially responsive CD. Evidence pertaining to this strategy remains limited. Methods

We retrospectively examined refractory CD patients treated with a combination of ustekinumab and vedolizumab. Outcomes to DBT at week (wk) 52 were compared to monotherapy. The primary outcome constituted corticosteroid-free remission. Secondary outcomes included adverse events, infections, hospitalizations, surgeries, treatment persistence, and disease clearance. Results

Sixteen of 21 …

Unintentional Lead Dislodgement In Twiddler’S Syndrome, Howard Tan, Ashok Chaudhary, Nishant Nerella, Suman Pasupuleti

West Florida Division GME Research Day 2025

No abstract provided.

Development Of Intra-Hospital Ceftriaxone Resistance Of Serratia Marcescens Endocarditis, Mahyar Doraji, Michael Denney, Adeel Malik, Praveen Chekka, Nishant K. Nerella

West Florida Division GME Research Day 2025

No abstract provided.