Cardiology Commons^™

Mimickers Of Atrial Fibrillation: When All Irregular Rhythms Are Not Atrial Fibrillation, Tirumala Nischal Jasty, Devi Parvathy Jyothi Ramachandran Nair

Transformative Medicine

Atrial fibrillation (AFib) is the most common sustained cardiac arrhythmia and carries important therapeutic implications, particularly regarding anticoagulation and stroke prevention. However, AFib remains frequently misdiagnosed, often due to overreliance on automated electrocardiogram (ECG) interpretations and failure to recognize alternative causes of rhythm irregularity. This review highlights the fundamental ECG characteristics required for the diagnosis of AFib and emphasizes that not all irregular rhythms represent atrial fibrillation. Through a representative clinical case and discussion of common mimickers—including Mobitz I (Wenckebach) atrioventricular block, premature atrial contractions, blocked premature atrial contractions, multifocal atrial tachycardia, and sinus arrhythmia—we demonstrate key electrocardiographic features that …

Real-World Outcomes Of Dedicated Leaflet Modification For Bioprosthetic Valve-In-Valve Tavr: A 150-Patient Commercial Experience., Raj R Makkar, Aakriti Gupta, Ignacio Inglessis, Curtiss T Stinis, Pradeep K Yadav, Vinod H Thourani, Stanley J Chetcuti, Matthew Summers, Vivek Patel, Bassem M Chehab, Apurva Patel, Gilbert H L Tang, Sahil Khera, Michael Rinaldi, Trevor Simard, Jeffrey Southard, Benjamin R Stripe, Brian Whisenant, Keith Allen, Yoseph Rozenman, Danny Dvir, Carlos E Sanchez, Jeffrey Popma, Martin B Leon, Philippe Généreux

Heart and Vascular Articles

BACKGROUND: Coronary obstruction during valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) is infrequent but catastrophic. Mechanical splitting of bioprosthetic leaflets may mitigate this risk, but real-world experience remains limited.

OBJECTIVES: The aim of this is to evaluate procedural performance and in-hospital outcomes of a dedicated mechanical leaflet-splitting device in ViV TAVR.

METHODS: Consecutive postapproval cases were performed at 28 centers from February to November 2025. Patients were selected for elevated risk based on preprocedural computed tomography criteria, including virtual valve-to-coronary distance ≤4 mm and/or virtual valve-to-sinotubular junction distance ≤3 mm. Procedural outcomes were assessed among patients in whom splitting was …

Intermittent Fasting In Chronic Heart Failure: A Systematic Review Of Safety And Physiological Outcomes, Zulrahman Erlangga, Prenali Dwisthi Sattwika

Journal of the Saudi Heart Association

Interest in intermittent fasting has expanded substantially due to its reported metabolic effects. However, whether such dietary patterns are safe for individuals living with chronic heart failure remains unclear. This issue is particularly relevant for patients who fast for religious observance, including Ramadan. We therefore performed a systematic review to evaluate the clinical safety and physiological implications of intermittent fasting in stable heart failure populations. The review protocol adhered to established reporting standards for systematic reviews. Multiple electronic databases were systematically searched from inception through December 2025 to identify studies evaluating intermittent fasting in adults with chronic heart failure. Both …

Safety Evaluation Of Dofetilide Administration Per Enteral Tube., Megan E Labreck, Katherine Crawford, David M Nemer, Auroa Badin, Anish Amin

Heart and Vascular Articles

No abstract provided.

Electronic Health Record Alerts To Improve Lipid Lowering After A Recent Myocardial Infarction, Dean G. Karalis, Benjamin Richter, Scott Hessen, Patrick Moeller, Laney K. Jones

Division of Cardiology Faculty Papers

BACKGROUND: This observational, quality initiative evaluated the impact of changing from a passive (dismissible) to an active (nondismissible without action) electronic health record alert on guideline-recommended lipid-lowering therapy (LLT) prescriptions in patients with recent myocardial infarction at risk for secondary events.

METHODS: We sequentially recruited a retrospective passive-alert (February 2018-July 2019; n=733) and a prospective active-alert (August 2020-January 2022; n=587) cohort of patients who triggered an alert to intensify LLT or order a low-density lipoprotein-cholesterol (LDL-C) test if they had a recent myocardial infarction (within 12 months) and elevated (≥70 mg/dL) or missing LDL-C. Prescribed LLTs and cumulative percentages of …

Differential Roles Of Moesin And Vasp In Β-Catenin-Associated Networks During Zebrafish Heart Regeneration, Allen Rutman

Undergraduate Theses, Capstones, and Recitals

With cardiovascular disease remaining as the leading cause of mortality worldwide, it is largely due to the limited regenerative capacity of the human heart. However, zebrafish (Danio rerio) can fully regenerate cardiac tissue following injury, providing a valuable model for studying the mechanisms of heart repair. To investigate these mechanisms, we used proteomics methods in the past. Proximity labeling is a technique that identifies proteins based on their physical proximity to a protein of interest. It can be applied in organisms and in living cells (Roux et al., 2012; Cho et al., 2020). We used proximity labeling to characterize protein …

Nurses’ Knowledge Regarding Ventilator-Associated Pneumonia Prevention Bundle In Adult Cardiac Care Units, Marwa Abdo

Nursing

Ventilator-associated pneumonia (VAP) is among the most common ICU infections for ventilated patients, associated with increased mortality (20-50%), morbidity, and health care costs. Nurses' knowledge of VAP prevention bundles is vital to reducing its incidence in critical care areas. Aim: To assess Nurses’ knowledge regarding the ventilator-associated pneumonia prevention bundle in Adult Cardiac Care Units. Study design: A cross-sectional study design was used. Setting: This study was conducted in both the adult cardiac intensive care unit and the cardiac care unit at Aswan Heart Centre–Magdy Yacoub Foundation, Egypt. Subject: A convenience sample of 67 nurses was selected. Data collection tool: …

Apolipoprotein B100 Predicts Cardiovascular And Limb Events In Type 2 Diabetes Patients With Chronic Limb-Threatening Ischemia, Federico Biscetti, Maria Margherita Rando, Maria Anna Nicolazzi, Flavia Angelini, Roberto Iezzi, Luis H. Eraso, Paul J. Dimuzio, Dario Pitocco, Massimo Massetti, Antonio Gasbarrini, Andrea Flex

Department of Surgery Faculty Papers

BACKGROUND: Patients with type 2 diabetes mellitus (T2DM) and chronic limb-threatening ischemia (CLTI) undergoing lower extremity revascularization (LER) face high risks of major adverse cardiovascular events (MACE) and major adverse limb events (MALE), despite guideline-directed lipid-lowering therapy. Apolipoprotein B100 (ApoB100), reflecting total atherogenic particle number, may identify residual risk beyond LDL-cholesterol (LDL-C). Therefore, we investigated whether baseline ApoB100 levels independently predict MACE and MALE beyond conventional risk factors in this high-risk population.

METHODS: In this prospective cohort study, 167 T2DM patients with CLTI undergoing LER were followed for 12 months with visits at 1, 3, 6, and 12 months post-procedure. …

Intravenous Atropine In Reducing Reperfusion Arrhythmias, Conduction Abnormalities, And Hypotension In Inferior St-Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention, Mohamed Ismail Rashed, Islam Mahmoud Bastawy, Ahmed Lotfy Mohamed, Mohamed Gamaleldin Elewa

Journal of the Saudi Heart Association

Objectives: Inferior ST-segment elevation myocardial infarction is frequently complicated by vagally mediated bradyarrhythmias and hypotension during reperfusion, contributing to increased morbidity. The Bezold–Jarisch reflex has been implicated in this hemodynamic instability; however, evidence supporting prophylactic atropine remains limited. The study evaluated whether intravenous atropine administered immediately before reperfusion reduces clinically meaningful bradyarrhythmias, hypotension, early sustained ventricular arrhythmias, and inpatient major adverse cardiovascular events in patients undergoing primary percutaneous coronary intervention.

Methods: In this prospective single-center, randomized, double-blind, placebo-controlled trial, adults presenting within 12 hours of symptom onset with inferior ST-segment elevation myocardial infarction were randomized 1:1 to intravenous …

Right Ventricular–Pulmonary Artery Coupling Predicts Early Myocardial Strain Improvement In Sglt2 Inhibitor-Treated Hfref, Mohammad Ali Hammad, Ramy Magdy Elgamal, Arwa Mohsen Abouelkhir, Osama Abouelfetouh Elshaer, Mohamed Shokry Fahmy, Reda Nabil Dawoud, Reda Biomy, Mohamed Kamal Salama

Journal of the Saudi Heart Association

Background: While sodium-glucose cotransporter-2 (SGLT2) inhibitors clearly benefit left ventricular recovery in heart failure with reduced ejection fraction (HFrEF), their rapid effects on right ventricular (RV) function remain poorly characterized. This prospective observational study investigated the timeline and markers of biventricular changes shortly after SGLT2 inhibitor initiation.

Methods:In this prospective observational study, 50 adults with HFrEF (LVEF

Results:After 3 months, NT-proBNP levels decreased significantly (1116.5 vs 913.5 pg/mL, P

Conclusions: In this prospective observational study without a control group, SGLT2 inhibitor initiation was associated with coordinated biventricular improvements within three months in HFrEF patients. The baseline TAPSE/PASP ratio …

Comments On The Letter “Bridging The Gap: The Critical Next Steps For Implementing Genetic Risk Scores In Myocardial Infarction Prevention In Saudi Arabia, Abdullah Saeed

Journal of the Saudi Heart Association

No Abstract for this article type.

Bridging The Gap: The Critical Next Steps For Implementing Genetic Risk Scores In Myocardial Infarction Prevention In Saudi Arabia, Ahmed Almohammadi

Journal of the Saudi Heart Association

No Abstract for this article type.

Hypertensive Disorders Of Pregnancy, Covid And Readmission Status, Margaret Luebke, Ross Bindler, Trisha Saul, Linda Trinh

Publications 2026-present

No abstract provided.

Ambulatory Blood Pressure Monitoring Phenotypes And Circadian Blood Pressure Patterns Among Adults Referred For Diagnostic Evaluation At Aga Khan University Hospital, Nairobi, Kenya: A Retrospective Cross-Sectional Study, Nadeem Kassam, Mzee Ngunga, James Orwa, Alisa Bhojani, Mohamed Varwani, Swaffiya Salim, Yvonne Oketch, Salim Surani, Anthony Ochola, Barbara Karau, Jeilan Mohamed, Etienne Amendezo

Internal Medicine, East Africa

Introduction: hypertension represents the primary modifiable risk factor for cardiovascular disease and poses a public health challenge in sub-Saharan regions, with Kenya experiencing particularly low detection and control rates. Traditional office-based blood pressure measurements often fail to detect key phenotypes, such as white-coat and masked hypertension. Ambulatory Blood Pressure Monitoring (ABPM) offers a comprehensive 24-hour profile that excludes white-coat hypertension and allows for the evaluation of circadian patterns, including nocturnal hypertension and non-dipping status, both of which are recognized as high-risk phenotypes strongly linked to adverse cardiovascular events. This study evaluated ABPM data from Aga Khan University Hospital, Nairobi …

Sex-Based Disparities In Health Care Access And Utilization Among Patients With Atrial Fibrillation, Ji Mei May Wong, Peter R. Kowey

Department of Medicine Faculty Papers

IMPORTANCE: Females with atrial fibrillation (AF) experience a higher risk of stroke, myocardial infarction, and mortality than males with AF. Theories suggest that sex-based differences in hormonal, structural, and electrophysiologic factors are associated with this imbalance; we hypothesized that sex-based differences in health care access and utilization (HCAU) are also underlying factors.

OBJECTIVE: To determine whether sex-based disparities in HCAU barriers exist among individuals with AF.

DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used data on patients with AF in the All of Us Research Program Registered Tier dataset (version 8), which contains integrated data from the electronic health record …

Evaluating Low Molecular Weight Heparin For Venous Thromboembolism Treatment In Extreme Body Weights, Natalie Tran, Brittanii Prahl, Jordan Amaro, Barbara Branneman, Jack Huber

All Poster Presentations

No abstract provided.

Contextual Variability In Under-Diagnosed Cardiometabolic Disease And Cognitive Vulnerability Among Populations At High Risk For Alzheimer's Disease And Related Dementias, Nwanyieze Jiakponnah, Joseph Curran, Tamlyn Watermeyer, Jasmit Shah, Litha Musili, Stanely Onyango, Benard Aliwa, Zul Merali, Karen Blackmon, Chinedu Momoh

Brain and Mind Institute

Underdiagnosis of cardiometabolic risk factors (CMRFs) may represent an unrecognised biological pathway contributing to dementia risk; yet remains poorly characterised in African and African diaspora populations. We quantified the prevalence and determinants of underdiagnosed hypertension and abnormal glycaemia across four cohorts comprising up to 7000 adults aged ≥40 years from Nigeria, Kenya, and The United States: Indianapolis, and North Texas. Underdiagnosis was defined as absence of self-reported diagnosis despite elevated systolic blood pressure ( ≥130 mmHg) or fasting blood glucose ( ≥100 mg/dL). Cohort-stratified analyses examined demographic, socioeconomic, cognitive, Alzheimer’s genetic, and blood-based biomarker correlates. Underdiagnosis was pervasive in African …

Impact Of Gum Chewing On Postoperative Ileus Following Open Heart Surgery At Swedish Cherry Hill, Jacinta Smith

All Podium Presentations

No abstract provided.

Quality Improvement: Referral Algorithm For Team-Based Care Of Blood Pressure Control, Hai-Yen Tang, Elise Gibson

All Podium Presentations

No abstract provided.

Practice Patterns In Pediatric Cardiothoracic Presurgical Conferences: A Multicenter Survey Study., Britney Reed, Poonam Puranik, Andrew Rodenbarger, Mira Trivedi, Dilachew A. Adebo, Gary Beasley, Louis Bezold, M Jay Campbell, Michael R. Carr, Joshua Daily, Mark Debrunner, Erica Del Grippo, Carlen G. Fifer, Timothy M. Hoffman, Susan R. Hupp, Joshua D. Kurtz, Gira Morchi, Carl Owada, Renuka Peterson, Michael D. Puchalski, Ryan Romans, Arwa Saidi, Rajesh U. Shenoy, Anoop K. Singh, Robert D. Tunks, Thomas M. Yohannan, Carolyn M. Wilhelm, Jyoti K. Patel

Manuscripts, Articles, Book Chapters and Other Papers

Pediatric cardiothoracic surgeries are high-stakes, complex procedures, typically undergoing prior review at multidisciplinary conferences. This study evaluates practice patterns of conferences throughout the United States (US). Surveys were distributed to fellowship program directors or division directors in 124 US pediatric cardiology centers seeking information on conference logistics, fellow roles, quality improvement (QI), and satisfaction. All 47 responding centers (response rate 38%) conduct presurgical conferences, mostly on a weekly basis (92%) lasting 60-120 min (79%). The conferences are solely virtual (19%) or hybrid (81%). High-volume centers (> 300 surgical cases/year) are more likely to hold multiple conferences (13/20 vs 7/27, p <  0.01) and less likely to designate a moderator (11/20 vs 22/26, p = 0.027). Categorical pediatric cardiology fellows at 33 centers present clinical data (97%), echocardiograms (85%), catheterizations (82%), and cross-sectional imaging (39%), typically beginning in their first year. Most centers report that minor (98%) or major changes (51%) are made to patient management at least "sometimes." Responders rate conferences as very important (median 10/10 on a 10-point Likert scale, IQR 9-10), but satisfaction is more modest (median 7/10, IQR 7-9). Only 17% of centers have a formal QI process. Comments from 42 centers reveal positive themes of collaboration (68%) but also concerns about lengthy (30%) or inefficient (36%) discussion. Conclusions: This survey highlights common practices for pediatric cardiothoracic presurgical conferences. Conferences are collaborative and seen as highly impactful. However, satisfaction varies, and QI efforts are infrequent. These findings highlight opportunities for process improvement and standardization.