Welcome to the KeepinRhythm Lab, an immersive experience designed and built by our sci-comms team in training: our own students and trainees. We invite learners at every stage of their patient care journey to explore the work and achievements of our current and former team members.
Our Mission
Turning Observations into Evidence-Based Heart Rhythm Outcomes Research
Innovate: We critically examine our daily clinical practices, looking for gaps in knowledge to fuel hypotheses that advance the care of heart rhythm pathologies- generating real-world evidence that informs the clinical trials of tomorrow.
Inspire & Mentor: We create research opportunities and provide personalized mentorship to inquiring minds at different stages of their training who are dedicated to the practice of clinical medicine. Here, research serves as the conduit for continuous mentorship. Team members seamlessly fluctuate between mentor and mentee, creating a uniquely unified atmosphere of collaboration.
Advance Care: Quality is research, and research is quality. We have built the digital infrastructure to harness the power of longitudinal follow-up throughout our large health system to answer clinical questions, evaluate current practices, and compare outcomes against national guidelines.
Who We Are
Clinicians Catalyzing Real-World Evidence to Transform Heart Rhythm Care
We are a team of clinicians at Lenox Hill Hospital (New York, NY), operating within Northwell Health, driven by a passion for research ignited by academic and clinical curiosity. As clinicians delivering care every day, we are constantly faced with questions that demand answers. This has driven us to build the research infrastructure to address the challenges we encounter in daily practice, partnering with like-minded colleagues to advance care for patients with heart rhythm disorders. Our research is enhanced by our collaborations across Northwell Health Cardiovascular Institute, Feinstein Institutes for Medical Research, Barbara and Donald Zucker School of Medicine at Hofstra, and Katz Institute for Women’s Health.
Signature Research Programs
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Database of long-term outcomes following catheter ablation for Atrial Fibrillation across Northwell Health.
Overview
Multicenter cohort of patients undergoing first-time atrial fibrillation catheter ablation across Northwell Health.
Includes long-term clinical outcomes from Northwell's five electrophysiology laboratories.
Projects
Cardiometabolic Syndrome
OSA, HFpEF & Anemia
Renal Dysfunction
Sex, Racial & Language-Based Disparities
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Applying artificial intelligence to electrocardiograms to improve cardiovascular risk prediction and clinical decision-making.
Our research develops and validates AI-powered ECG models to identify patients at risk for cardiovascular disease, predict clinical outcomes, and support earlier diagnosis and more personalized care.
Collaborators
Theodoros Zanos
Nabil Etehadi
Kristie Coleman
Projects
AF Recurrence
Stroke
Aortic Disease
CP AF
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Investigating therapies that target the autonomic nervous system to improve the treatment of cardiac arrhythmias.
Our research evaluates innovative, non-pharmacologic approaches that modulate neural pathways involved in heart rhythm disorders. Through clinical trials, we study therapies designed to reduce arrhythmia burden and expand treatment options for patients.
Projects
Barostim™ Activation Therapy
NOVA PVC
SVT aVNS
Non-invasive Vagus Nerve Stimulation
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Recent Highlights
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Determinants of Clinical Hemolysis
Attempting to establish common ground for discussing pulsed field ablation-induced hemolysis. State of the Art Review just published in JACCEP
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Alexandra Bekiaridou, MD successfully defended her PhD thesis
Alexandra Bekiaridou successfully defended her PhD thesis on “Splenic Neuroimmune Mechanisms in the Pathogenesis of Pulmonary Hypertension” at the Elmezzi Graduate School of Molecular Medicine.
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Isabel Sullivan, visiting scholar, represents our lab at the HRS 2026 conference
Isabel presented An ITHACA Database Study, a Comparative Analysis of Long-Term Outcomes Between Cryo, Radiofrequency, and Pulsed Field Catheter Ablation for Atrial Fibrillation
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Kristie Coleman wins Health Equity Award at HRS 2026 Conference
Presented our lab’s work on sex-based differences in the AFib care pathway. Our findings show a persistent transfer-of-care gap, with women less likely to reach EP consult and ablation. Lots more to come from our ITHACA database
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— Dr. Stavros Mountantonakis,