Medical Specialties Commons^™

Congenital Heart Defects, Children's Health School Services

School Guides

Educator guide about how to support students with congenital heart defects.

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 …

Cardiac Step-Down Unit (Csu), Two Failures Drive Suboptimal Vte Prevention: Quality Improvement, Jorim Parmar, Shakir Al-Ezzi, Anvi Manduva, Muhammad Suleman, Fahed Alsayed, Debra Medsker

North Texas GME Research Forum 2026

BACKGROUND: In the Cardiac Step-down Unit (CSU), two failures drive suboptimal VTE prevention: (1). over-ordering of SCDs in patients unlikely to benefit and (2). < 10% documented application when SCDs are truly indicated. Baseline data indicates that curbing over-ordering alone would reduce recorded non-compliance by >50%, revealing a clear opportunity for system redesign.

METHODS: To integrate the updated “3 Bucket” Risk Model assessment into the computerized physician order entry (CPOE) in order to delineate the prophylaxis for a given patient population. Once the manual risk assessment proves to be viable in increasing compliance, we can propose having the tool adopted into the CPOE system. Root Cause Analysis revealed that lack of standardized VTE risk stratification leads to inconsistent ordering practices – …

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 …

Stim1-Dependent Treg Dysfunction Promotes Cardiometabolic Hfpef: Insights From Patients And Animal Studies, Balaji Srinivas, Alluri Kiran, Hongmei Peng, Jiang Xu, Paula Fortuno, Jennifer May, Ismail El Moudden, Nour-Eddine Rhaleb, John M. Herre, Raymond L. Benza, Khalid Matrougui

Department of Biomedical and Translational Sciences Faculty Publications

Background

Heart failure with preserved ejection fraction (HFpEF) arises from chronic cardiometabolic and vascular stress and is increasingly recognized as an inflammatory syndrome with immune dysregulation. Regulatory T cells (Tregs) are critical modulators of cardiovascular inflammation, yet the mechanisms driving Treg dysfunction in HFpEF remain poorly defined. stromal interaction molecule 1 (STIM1)-dependent calcium signaling is a key stress-responsive pathway in immune cells; however, its role in Treg maladaptation during HFpEF remains unknown.

Methods

Circulating Tregs from patients with and without HFpEF were analyzed for abundance, STIM1 expression, and stress-associated signaling pathways. To establish causality, mice with Treg-specific deletion of STIM1 …

Racial Differences In Adverse Pregnancy Outcomes And Incident Hypertension: A Mediation Analysis, Lucia C. Petito, Xiaoning Huang, C. Noel Bairey, Natalie Bello, Janet Catov, Ernesto Licon, Abbi Lane, David M. Haas, Lisa D. Levine, Rebecca B. Mcneil, Eliza Miller, Uma M. Reddy, Bethany Barone Gibbs, George Saade, Lauren Theilen, Laura E. Wiener, Brian M. Mercer, Hyagriv N. Simhan, Lynn M. Yee, Philip Greenland, William A. Grobman, Sadiya S. Khan

Department of Obstetrics & Gynecology Faculty Publications

Background

Adverse pregnancy outcomes (APOs) are associated with increased hypertension risk. Black women experience higher rates of APOs and hypertension compared with White women, but whether APOs contribute to Black-White hypertension disparities remains unknown.

Methods

The nuMoM2b-HHS (Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-To-Be-Heart Health Study) prospectively recruited nulliparous pregnant people at 8 US centers (2010-2013) with follow-up 2 to 7 years postpartum (2014-2017). Race, which represents a social construct, was self-identified. The primary outcome was incident hypertension at follow-up. APOs included hypertensive disorders of pregnancy, preterm birth, and small-for-gestational age birth. Potential confounders (psychological health, social factors, and health behaviors) …

Animal Models Of Aortic Aneurysm And Dissection: A Comparative Guide For Mechanism, Therapeutic Testing, And Translational Readouts, Shayan Mohammadmoradi, Sidney W. Whiteheart

Saha Cardiovascular Research Center Faculty Publications

Aortic aneurysms and dissections are devastating vascular diseases with high mortality, yet no pharmacological therapy has proven effective in halting growth or preventing rupture. Surgical and endovascular repair remain the only treatment options for advanced disease. Animal models have been indispensable in defining mechanisms and testing candidate therapies, but the diversity of protocols, strain-dependent variability, and heterogeneous endpoints complicate interpretation and translation. This review provides an update focused on how to match models to specific research questions. We critically compare commonly used abdominal aortic aneurysm (AAA) models (angiotensin II ± hyperlipidemia, elastase, calcium chloride, β-aminopropionitrile BAPN hybrids, and mineralocorticoid agonist/fludrocortisone …

Impact Of Rapid Response Team On In-Hospital Cardiac Arrest Events, Sara Everard Tucker, Julie Gale Bell, Stephanie Pigg, Shelby Austin, Kelsey Sawyer, Stephan Smith, Michelle Bradberry, Jonathan Ortegon, Matt Mitchell

Covenant Nurses Week 2026

No abstract provided.

Empowering Nurses In Cardioversion Management, Joel Hutcherson, Abby Gale Perez

Covenant Nurses Week 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.

Microgravity-Induced Alterations In Left Atrial Hemodynamics And Thrombogenic Risk: Insights From Healthy And Atrial Fibrillation Models, Grace M. Hoeppner

Dissertations, Master's Theses and Master's Reports

Background: Microgravity exposure alters cardiovascular loading, yet its impact on left atrial flow dynamics and thrombotic risk remains poorly understood. This study investigates how spaceflight-relevant microgravity-induced changes in cardiac outflow affect left atrial hemodynamics in healthy individuals and patients with atrial fibrillation.

Methods: Patient-specific left atrial models were generated for three healthy individuals and three AF patients. Computational fluid dynamics (CFD) simulations were performed using each patient’s baseline mitral outflow waveform and two modified waveforms representing short- and long-duration post-flight cardiac loading changes derived from echocardiographic observations. Hemodynamic metrics included left atrial velocity, time averaged wall shear stress, oscillatory shear …

Albuminuria Screening Among Egyptian Patients With Cardiovascular Diseases, Regardless Of Their Diabetic Condition, Amira Fawzy Soliman, Khaled Shelbaya, Wael Abdelatief Mohamed Elhakeem, Osama Louis, Basheer Hafez, Wael Ali, Tarek M.Abdelaziz Elkholy, Baher Emil Ibrahim, Mahmoud M Abdou, Bassem Zarif

Journal of Medicine in Scientific Research

Even in the absence of overt kidney disease, albuminuria is increasingly recognized as a marker of systemic endothelial dysfunction and heightened cardiovascular risk. This prospective cohort study aimed to evaluate whether baseline urinary albumin-tocreatinine ratio (UACR) predicts subsequent incident cardiovascular outcomes among Egyptian adults with cardiovascular disease, regardless of diabetic status.

Atrial Fibrillation Detection From At-Rest Ppg Signals Using An Sdof-Tf Method, Mamun Hasan, Zhili Hao

Mechanical & Aerospace Engineering Faculty Publications

At-rest PPG signals have been explored for detecting atrial fibrillation (AF), yet current signal-processing techniques do not achieve perfect accuracy even under low-motion artifact (MA) conditions. This study evaluates the effectiveness of a single-degree-of-freedom time–frequency (SDOF-TF) method in analyzing at-rest PPG signals for AF detection. The method leverages the influence of MA on the instant parameters of each harmonic, which is identified using an SDOF model in which the tissue–contact–sensor (TCS) stack is treated as an SDOF system. In this model, MA induces baseline drift and time-varying system parameters. The SDOF-TF method enables the quantification and removal of MA and …

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 …

Sex Differences In Clinical Characteristics, Treatment, And Outcomes Of Cardiovascular Disease: Kenya Heart Registry Analysis, Lilian Mbau, Martha Gulati, Mzee Ngunga, Jasmit Shah, Felix Barasa, Jeilan Mohamed, Anders Barasa, Bernard Gitura, Harun Otieno, Etienne Amendezo

Internal Medicine, East Africa

Background Cardiovascular disease is the leading cause of death globally, with approximately 80% of these deaths occurring in low- and middle-income countries. Sex differences in cardiovascular disease are well described in high-income countries but limited in low- and middle-income countries.

Objectives This study sought to evaluate the sex differences in clinical presentation, cardiovascular risk profile, diagnosis, treatment, and outcomes among patients in the Kenya Heart Registry.

Methods Data were prospectively collected from 3 tertiary hospitals, including patients with heart failure, acute coronary syndrome, venous thromboembolism, and atrial fibrillation. Primary outcomes were in-hospital and 6-month mortality, as well as sex-specific differences …

Increasing Repeat Blood Pressure Compliance Rates At A Primary Care Clinic, Anne Giampietro, Kristin Coulter, Sarah Fincham, Julie Nugent-Carney

Publications 2026-present

No abstract provided.

Outcomes And Implications Of Patients Included Vs. Excluded For Extracorporeal Cardiopulmonary Resuscitation After Initial Activation, Kevin George, Joshua B. Wiener, Michael Zacharias, Frank Forde, Yasir Abu-Omar, Colin Mccloskey

Division of Cardiology Faculty Papers

BACKGROUND: The aim of this study is to describe the implementation of a new Extracorporeal Cardiopulmonary Resuscitation (ECPR) program in Cleveland, Ohio, USA. We also provide a novel comparison of outcomes between patients cannulated vs excluded from cannulation for ECPR after initial field activation.

METHODS: A prospective observational study of ECPR activations between September 2021 and February 2025. Patients meeting initial eligibility criteria for out-of-hospital cardiac arrest (OHCA)-namely based on age, bystander-CPR, and initial shockable rhythm-were transported to the emergency department where the ECPR team completed cannulation based on further biochemical criteria. Medical records were used to collect data after …

Myxedema Coma With Cardiogenic Shock: Diagnostic Challenges And Risks Of Amiodarone In Acute Thyroid Failure, Munachiso Egbo, Jean Ramos-Cardona, Gunjan Mundhra, Veniamin Melnychuk, Suzanne Martinez

South Atlantic Division GME Research Days 2026

No abstract provided.

Percutaneous Vegetectomy As An Emerging Alternative For Tricuspid Valve Endocarditis, Alexander Patel, Elias Wakim, William Zvagelsky, Ebad Ur Rahman, Youssef Al-Saghir, Ahmed Zaky

South Atlantic Division GME Research Days 2026

No abstract provided.

How Does Pulse Field Ablation Compare To Radiofrequency Ablation In The Creation Of Cavotriscupid Isthmus Line In Patients With Atrial Arrythmias?, Sharul Saxena, Veniamin Melnychuk, Sadhana Jonna, Gunjan Mundhra, Firas El Sabbagh

South Atlantic Division GME Research Days 2026

No abstract provided.

A Rare Case Of Ticagrelor-Induced Delirium, Mhd Osama Srour, Ebad Ur Rahman, Aliha Syeda, Tehmina Patel, Mubbasher Syed

South Atlantic Division GME Research Days 2026

No abstract provided.

Acute Stemi Hours After Cabg From Distal Lima–Lad Graft Occlusion Complicated By Ellis Iii Perforation During Pci Successfully Treated With A Covered Stent, Eboselumen Aigbe, Brett Sasseen `

South Atlantic Division GME Research Days 2026

No abstract provided.

Duplex Ultrasound For Detecting Functional Popliteal Vein Entrapment: A Case Series, Ebad Rahman, William Zvagelsky, Alexander Patel, Mubbasher Syed

South Atlantic Division GME Research Days 2026

No abstract provided.

Shone Syndrome: Where Childhood Repair Is Just The Beginning, William Zvagelsky, Ebad Rahman, Ibrahim Fahdi

South Atlantic Division GME Research Days 2026

No abstract provided.

Can An Atrial Fibrillation Template Comprehensively Address Modifiable Risk Factors For Atrial Fibrillation Patients?, Sharul Saxena, Jyoti Moorjani, Sadhanna Jonna, Firas El Sabbagh

South Atlantic Division GME Research Days 2026

No abstract provided.

Clinical Outcomes And Economic Impact Of Coronary Intravascular Lithotripsy In Calcified Lesions: Insights From Contemporary Real-World Registries, Ebad Rahman, Alexander Patel, William Zvagelsky, Mubbasher Syed, Youssef Al Saghir

South Atlantic Division GME Research Days 2026

No abstract provided.

Physiologic Markers Of Mortality In Acute Valve Syndrome: An Ischemic Physiology Score Stratifies Patient Risk, Omar Saleh, Nicholas J. Valle, Israa Saleh, Raymond Benza, Deepak R. Talreja, Matthew R. Summers

Department of Medicine Faculty Publications

Background: Acute valve syndrome (AVS) represents a high-risk phenotype of advanced valvular disease with largely uncharacterized risk heterogeneity. We aimed to validate an expanded AVS definition and develop a physiology-dependent risk stratification tool using available clinical markers.

Methods: This retrospective study analyzed 2380 patients undergoing aortic valve replacement for severe aortic stenosis and classified them as AVS (n = 1556) or progressive valvular disease (n = 824). The primary outcome was 1-year all-cause mortality. An L2-regularized logistic regression model was developed to predict 1-year mortality using admission laboratory markers and comorbidity burden. Model performance was assessed using nested cross-validation with …

Concomitant Transcatheter Edge-To-Edge Repair For Mitral And Tricuspid Regurgitation For Polyvalvular Disease, Omar Khan, Matthew Summers

Department of Medicine Faculty Publications

This patient is a 77-year-old male with non-ischemic cardiomyopathy, severe tricuspid regurgitation, and moderate mitral regurgitation who underwent simultaneous transcatheter edge-to-edge repair of both mitral and tricuspid valves. Post-procedure, the patient exhibited significant symptomatic improvement and reduced regurgitation severity, highlighting the feasibility of dual-valve TEER in high-risk patients.

Permanent Pacemaker Implantation Following Transcatheter Aortic Valve Replacement: Incidence, Predictors, And Association With Reduced Ischemic Stroke Risk, Omar Saleh, Nicholas J. Valle, Shinjer Li, Saleh Mostafa, Israa Saleh, Raymond Benza, Deepak R. Talreja, Matthew R. Summers

Department of Medicine Faculty Publications

Background

Development of conduction abnormalities requiring pacing after transcatheter aortic valve replacement (TAVR) is relatively common. The effects of post-TAVR permanent pacemaker (PPM) implantation on mortality, ischemic stroke, and cardiovascular outcomes remain incompletely characterized. AIMS: To evaluate the incidence, predictors, and cardiovascular outcomes of post-TAVR permanent pacemaker implantation, including its association with 1-year ischemic stroke risk.

Methods

Adults undergoing TAVR (2008-2019; n = 1101) were evaluated. Patients with prior PPM (n = 104) and/or valve-in-valve or redo TAVR (n = 11) were excluded. PPM placement was identified post-indexed TAVR admission based on procedure codes, including both in-hospital and post-discharge implantations. …