Cardiovascular Diseases Commons^™

Devising A Protocol For Mri Clearance In Patients With Cardiac Implantable Electronic Devices (Cied), Sienna Luk, Alvin Mathew, Darshan Bhatty, Kamran Rizvi

North Texas GME Research Forum 2026

Background: Magnetic Resonance Imaging (MRI) in patients with Cardiac Implantable Electronic Devices (CIEDs) remains a logistical challenge in many clinical settings. At Medical City Denton, the absence of a standardized institutional policy has led to significant inefficiencies, including prolonged hospital stays and increased healthcare costs. The primary objective of this project was to address these barriers by developing a streamlined, evidence-based protocol to improve care coordination and resource utilization for patients with CIEDs requiring diagnostic imaging.

Methods: Launched in 2026, this pilot initiative utilized a multi-stakeholder approach involving hospitalists, EPs, radiology staff, and device representatives. A core component of the …

Relationship Between Exception Request For Higher Listing Urgency And Aggressiveness In Accepting Heart Offers, Jorim Parmar, Yingxian Liu, Devika Adusumilli, Luke Taylor, Shakir Al-Ezzi, Usman Khan, Claudio Bravo, Claudius Mahr, Song Li

North Texas GME Research Forum 2026

BACKGROUND: Transplant programs may submit exception requests to upgrade a listed patient’s priority, often anticipating a higher likelihood of accepting marginal or high-risk donor organs. This study explores whether exception request status is associated with increased risk tolerance in organ acceptance.

METHODS: We conducted a retrospective analysis using data from the Scientific Registry of Transplant Recipients (SRTR), focusing on adult patients (≥18 years) listed for heart transplantation. Statistical analyses were performed using SAS/STAT 14.1. Descriptive statistics summarized demographic and clinical variables. Baseline characteristics were compared between recipients with and without exception requests. Primary analysis: Mixed-effects linear regression was used to …

A Storm At Both Ends: Hypertensive Emergency Unmaksing C3-Dominant Glomerulonephritis, Karthik Kasireddy, Boney Lapsiwala, Marisha Sharma, Rupali Prabhukhot, Victor Canela

North Texas GME Research Forum 2026

Background: C3 glomerulopathy (C3G) encompasses a group of diseases that result from abnormalities in the alternative pathway of complement regulation, and has been defined by C3 only or C3-dominant immunofluorescence staining seen on renal biopsy. C3G includes C3 glomerulonephritis (C3GN) and dense deposit disease (DDD); the latter of which is characterized ultra-structurally by the presence of highly osmiophilic intramembranous deposits. Both C3GN and DDD often present with a membranoproliferative pattern of glomerular injury, a finding that can also be seen in thrombotic microangiopathy (TMA). Most common causes include infection, autoimmune and monoclonal gammopathy.

Case presentation: A 70-year-old man with hypertension, …

Too Young For A Broken Heart: Stemi At Twenty, Shana-Kay Lambert-Johnson, Jason Thompson

North Texas GME Research Forum 2026

Background: ST-elevation myocardial infarction (STEMI) is exceptionally rare in young adults, accounting for less than 1% of acute coronary syndromes in individuals younger than 35 years. When it occurs in early adulthood, particularly among women, it introduces diagnostic uncertainty and exposes gaps in post-discharge continuity of care. This case of a 20-year-old female with STEMI highlights the role of primary care in preserving evidence-based therapy while addressing psychosocial determinants of recovery.

Case Presentation: A 20-year-old female presented to her primary care clinic for post-discharge follow-up after hospitalization for an anterior STEMI that began with sudden-onset substernal chest pain radiating to …

Analysis Of Stemi Activations, Ashleigh Wilson, Christopher Houston

North Texas GME Research Forum 2026

Background Prior studies of ST-segment elevation myocardial infarctions (STEMI) presentations have shown that longer door-to-balloon (D2B) times are associated with increased mortality. Percutaneous Coronary Intervention (PCI) within 90-minutes is standard. It appears that STEMI patients without prehospital notifications have longer ischemic times. Prehospital activation of cathlab involves EKG transmission that the Emergency Physician interprets before activating cathlab, which has the potential to cause delays. We propose that prehospital notification and prehospital having the ability to activate cathlab could decrease D2B times.

Study aims:

• Evaluate current prehospital notification system.
• Assess EMS accuracy in STEMI identification and cathlab activation. 
• Does prehospital notification …

An Unusual Case Of Genetic Dilated Cardiomyopathy Unmasked By Covid-19 Infection, Greeshma Molugu, Daniel Mcmahan, Seline Haci, Giridhar Mundluru, Machaiah Madhrira

North Texas GME Research Forum 2026

Introduction: Titin (TTN) mutations are a well-known cause of dilated cardiomyopathy (DCM), occurring in approximately 25% of familial cases of idiopathic DCM and 18% of sporadic cases. Recognition and referral for genetic testing remains underutilized but has important prognostication and helps the patient better understand the disease transmission. This case report stresses the importance of a complete evaluation for genetic causes of DCM.

Case Presentation: A 21-year-old male who was adopted as an infant was hospitalized with COVID-19 infection and diagnosed with non-ischemic cardiomyopathy with an initial left ventricular ejection fraction (EF) of 10%. He was assumed to have DCM …

Prognostic Value Of Systemic Inflammatory Indices For Predicting Mace In Nstemi Patients Undergoing Pci, Boney Lapsiwala, Aditya Sharma, Usman Khan, Jorim Parmar, Justin Soloman, Veeranna Vibhuti, Mehdi Khalafi

North Texas GME Research Forum 2026

Background: Cardiovascular diseases (CVD) account for nearly one-third of global mortality, with ischemic heart disease caused by a mismatch between myocardial oxygen supply and demand. Despite advances in percutaneous coronary intervention (PCI) and contemporary pharmacotherapy, patients with non–ST-segment elevation myocardial infarction (NSTEMI) continue to experience substantial residual risk for major adverse cardiovascular events (MACE). As traditional risk stratification tools have limited ability to identify high-risk individuals, interest has shifted toward biomarkers reflecting inflammatory pathways central to atherosclerosis and plaque instability. Hematologic inflammatory markers including pan inflammatory value (PIV), systemic immune inflammation index (SII), neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) initially …

Double Trouble: A Rare Co-Existence Of Hypertrophic Obstructive Cardiomyopathy And Anomalous Origin Of The Right Coronary Artery, Greeshma Molugu, Srinivasan Rajaganapathy, Seline Haci, Machaiah Madhrira

North Texas GME Research Forum 2026

Introduction: Hypertrophic obstructive cardiomyopathy (HOCM) and anomalous origin of the right coronary artery (RCA) are well-known but rare congenital heart diseases that are recognized as independent leading causes of sudden cardiac death(SCD). The independent prevalence of both these conditions is less than 1%. The co-occurrence of these two conditions is seldom ever reported in the literature. We present an extremely rare case of HOCM and the anomalous origin of the RCA in the same individual.

Background: A 67-year-old male with no significant past medical history presented for chest pain and palpitations. EKG showed atrial fibrillation with rapid ventricular response. Troponin …

A Rare Case Of New Onset Lisinopril-Induced Angioedema Improved With Tranexamic Acid: A Case Report, Hafiz Numan Ijaz, Shahzaib Maqbool, Yugandhar Kandimalla

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

High-Flow Ectatic Anomalous Right Coronary Artery From The Pulmonary Artery With Stimulant-Induced Cardiomyopathy: A Case Report, Prithvi Basu Roy, Danish Bawa, Louis Orlando

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Type 2 Myocardial Infarction In Adults Admitted For Severe Persistent Asthma With Status Asthmaticus: Evaluating Predictors And Mortality Burden, Kanwar Bir Dhaliwal, Rahul Pawa, Naresh Kodwani

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Impact Of Pharmacist Intervention And Cardiac Rehab In Post-Acute Myocardial Infarction Patients On 90-Day Readmission Rates, Paige Hall, Jennifer Wong, Tricia Walsh

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Baseline Right Ventricular-Pulmonary Arterial Coupling As A Predictor Of Clinical Outcomes In Endobronchial Valve Therapy For Advanced Emphysema, Syed Ali Raza Abidi, Prithvi Basu Roy, Munaf Siyamwala, Amelia Goslin

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Impact Of Dapagliflozin On Diastolic Function In Asymptomatic Patients With Type 2 Diabetes Mellitus: A Prospective Observational Study, Pankti Shah, Kumar Abhishek, Pratyush Kumar, Aradhana Pandey

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

The Histamine-3 Receptor In Cardiac Fibrosis: A Novel Role In Fibroblast Function, Heather Linsky

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the United States, heart failure affects approximately 6.7 million individuals. Despite a number of available therapies, heart failure prevalence continues to grow, suggesting the need for a broader range of effective therapies. More specifically, heart failure with preserved ejection fraction comprises approximately 50% of all heart failure cases and, as the name suggests, is a disease of diastolic dysfunction as opposed to systolic dysfunction. A hallmark of heart failure with preserved ejection fraction is myocardial fibrosis, which is a key contributor to diastolic dysfunction, and is the major focus of this dissertation work. In the heart, histamine-3 receptor activation …

Investigating Racial And Ethnic Disparities In Cardiometabolic Outcomes Among Women With Polycystic Ovarian Syndrome: An Umbrella Review, Gianna C. Santoni

Honors Undergraduate Theses

Polycystic ovarian syndrome (PCOS) is one of the most common endocrinological disorders affecting women of reproductive age. Due to the possibility of a genetic component affecting women with PCOS, evidence supports varying health outcomes among racial and ethnic groups. This literature aims to answer the question: Does the prevalence of cardiometabolic outcomes differ among women with polycystic ovarian syndrome across racial/ethnic groups? This umbrella review was conducted in accordance with JBI Manual for Evidence Synthesis and PRIOR reporting guidelines and was registered on PROSPERO (CRD420261303872) before completion. PubMed, MEDLINE via EBSCOhost, and Web of Science via EBSCOhost were searched from …

The Interplay Between Loneliness, Cortisol, And Nk Cell Function: The Role Of Cortisol In Nk Cell Dysfunction, Abhinav Saurabh, Yvonne Baumer, Laurel G. Mendelsohn, Elizabeth M. Aquino Peterson, Dana Sadler, Shirley J. Lopez De Leon, Ayushi Dave, Andrew S. Baez, Lola R. Ortiz-Whittingham, Mario A. Pita, Manuel A. Cintron, Hannatu A. Tarfa, Sandy T. Reynolds, Shelby R. Hicks, Sonal Sharda, J. Eleanor Seo, Maria Lopez-Ocasio, Pradeep K. Dagur, Skyler A. Kuhn, Neelam R. Redekar, James F. Troendle, Ayanna L. Wells, Marie Marah, Katherine J. Tolentino, Michael J. Corley, Alika K. Maunakea, Lynnette K. Nieman, Marcus R. Andrews, Tiffany M. Powell-Wiley

Department of Biomedical and Translational Sciences Faculty Publications

Chronic psychosocial stressors contribute to cardiovascular disease (CVD) and related risk factors, particularly in under-resourced communities. Psychosocial stressors activate the hypothalamic-pituitary-adrenal (HPA) axis, leading to sustained cortisol action on immune cells. Natural killer (NK) cells are altered in distribution and function in cardio-metabolic diseases; however, pathways linking cortisol as a marker of chronic stress to NK cell dysfunction remain understudied. We recruited 186 African American women from the Step It Up Community-Engaged, Digital Health Physical Activity Intervention study and collected cortisol, NK cell measures, and psychosocial stress measures using validated questionnaires, including chronic stress and loneliness. Plasma cortisol levels were …

Combined Snare And Buddy-Balloon Strategy For Failed Valve Crossing In Valve-In-Valve Transcatheter Aortic Valve Replacement, Hira Sarfraz, Muhammad U. Javed, Parth K. Parikh, Joshua A. Cohen, Raymond L. Benza, Matthew R. Summers, Deepak R. Talreja

Department of Medicine Faculty Publications

Background

Retrograde valve crossing during valve-in-valve transcatheter aortic valve replacement (ViV TAVR) may fail despite modern delivery systems.

Case Summary

A 67-year-old man with a degenerated 27-mm Magna Ease bioprosthesis and unfavorable aortic geometry (kinked ascending aorta at a prior surgical graft site) underwent ViV TAVR, where retrograde valve crossing failed despite multiple stiff guidewires and snare traction alone. Successful delivery of a 29-mm Evolut FX+ was ultimately achieved by combining gooseneck-snare traction for coaxial realignment with a partially inflated Tyshak buddy balloon acting as a mechanical ramp across the surgical valve frame.

Discussion

This case demonstrates a structured, stepwise …

Effect Of Plant-Based Vs. Standard American Diet On Cardiovascular Parameters In College Students, Timothy J. Horanic

Honors Undergraduate Theses

This study examines how adherence to different dietary patterns—specifically a plant-based diet compared to the standard American diet—can influence physiological indicators tied to cardiovascular health, including heart rate variability (HRV), blood pressure (BP), and heart rate (HR). Among these markers, HRV is considered especially sensitive to autonomic nervous system (ANS) regulation and may offer earlier insight into physiological stress or dysfunction than HR or BP alone. Although nutritional habits are widely believed to impact heart health, few investigations have focused on how specific long-term diets affect autonomic and cardiovascular metrics in healthy, college-aged adults. This study aims to investigate if …

Associations Between Contralesional Neuroplasticity And Motor Impairment Through Deep Learning-Derived Mri Regional Brain Age In Chronic Stroke (Enigma): A Multicohort, Retrospective, Observational Study, Gilsoon Park, Mahir Khan, Justin Andrushko, Nerisa Banaj, Michael Borich, Lara Boyd, Amy Brodtmann, Truman Brown, Cathrin Buetefisch, Adriana Conforto, Steven Cramer, Michael Dimyan, Martin Domin, Miranda Donnelly, Natalia Egorova-Brumley, Elsa Ermer, Wuwei Feng, Fatemeh Geranmayeh, Colleen Hanlon, Brenton Hordacre, Neda Jahanshad, Steven Kautz, Mohamed Salah Khlif, Jingchun Liu, Martin Lotze, Bradley Macintosh, Feroze Mohamed, Jan Nordvik, Fabrizio Piras, Kate Revill, Andrew Robertson, Christian Schranz, Nicolas Schweighofer, Na Jin Seo, Surjo Soekadar, Shraddha Srivastava, Bethany Tavenner, Gregory Thielman, Sophia Thomopoulos, Daniela Vecchio, Emilio Werden, Lars Westlye, Carolee Winstein, George Wittenberg, Jennifer Ferris, Chunshui Yu, Paul Thompson, Sook-Lei Liew, Hosung Kim

Department of Radiology Faculty Papers

BACKGROUND: Stroke leads to complex chronic structural and functional brain changes that specifically affect motor outcomes. The brain predicted age difference (PAD) has emerged as a sensitive biomarker of both sensorimotor and cognitive function after stroke. Our previous study showed a higher global brain PAD associated with poorer motor function after stroke. However, the association between local stroke lesion load, regional brain age, and motor impairment is unclear. This study aimed to investigate the associations between focal lesion damage, regional brain PAD in both hemispheres, and motor outcomes in chronic stroke, and to identify key predictors of motor impairment.

METHODS: …