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Konstantinos Aronis

Konstantinos Aronis, MD, PhD

Cardiology

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Highlights

Age Groups Seen

  • Young Adult 18-25
  • Adult 26-64
  • Older Adult 65+

Languages

  • Greek
  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Konstantinos Aronis

Professional Titles

  • Director, Adult Congenital Heart Disease Complex Ablation Program
  • Associate Director, Ventricular Tachycardia Ablation Program

Primary Academic Title

Assistant Professor of Medicine

Johns Hopkins Physician

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Background

Dr. Aronis is an Assistant Professor of Medicine in the Division of Cardiology at the Johns Hopkins School of Medicine, the Director of the Complex Adult Congenital Heart Disease Ablation Program, and the Associate Director of the Ventricular Tachycardia Ablation Program. He performs all types of electrophysiology procedures, with a special focus on complex catheter ablations for atrial and ventricular arrhythmias as well as complex ablations for arrhythmias in patients with adult congenital heart diseases. 

Dr. Aronis received his M.D. and Ph.D. degrees with Summa Cum Laude honors from the University of Patras School of Medicine in Greece. He completed his internal medicine residency training at Boston University Medical Center both his Cardiovascular Disease and Clinical Cardiac Electrophysiology fellowships at The Johns Hopkins Hospital. In addition, he has completed a post-doctoral research fellowship in Translational Research at Beth Israel Deaconess Medical Center / Harvard Medical School and an NIH funded (T-32) post-doctoral research fellowship in computational electrophysiology at the Institute of Computational Medicine at the Johns Hopkins Whiting School of Engineering. He actively engages in clinical trials and research studies aimed at improving patient outcomes and advancing the understanding of cardiac arrhythmias. He is a member of the American College of Cardiology, American Heart Association, and Heart Rhythm Society. 

Clinical Trial Keywords

Ventricular tachycardia, VT ablation, catheter ablation, ventricular fibrillation, adult congenital heart disease, ACHD, congenital arrhythmia, atrial arrhythmia, atrial fibrillation, supraventricular tachycardia, epicardial ablation, LVAD, hybrid surgical ablation, VATS ablation, conduction system pacing, leadless pacemaker, cardiac implantable electronic device, ICD, sudden cardiac death, tetralogy of Fallot, Fontan, digital twin, computational electrophysiology, cardiac imaging, electroanatomic mapping, arrhythmia mapping, biological pacemaker, premature ventricular complexes, electrophysiology study.

Clinical Trials Summary

  • Site Principal Investigator, NIH-funded EARLY-VT multicenter trial (University of Rochester network).
  • Co-Investigator (pending), DARPA VITAL Program "ELECTRA" project on advanced arrhythmia technologies.
  • Participating investigator within the Rochester multicenter EP trial network (e.g., PIVATAL, CONTEMPT-ICD).

Find a Clinical Trial

View all trials by this principal investigator.

Contact for Research Inquiries

1800 Orleans Street
Zyed Tower Suite 7120
Baltimore, MD 21287

karonis1@jh.edu

 

Research Interests

  • Catheter ablation and longitudinal management of arrhythmias in complex adult congenital heart disease (ACHD).
  • Complex ventricular tachycardia ablation — epicardial, intraoperative/LVAD-concurrent, and ventricular fibrillation ablation.
  • Hybrid surgical, VATS, and mini-thoracotomy approaches to VT ablation.
  • Integration of advanced cardiac imaging into electrophysiology procedures.
  • Computational electrophysiology and patient-specific digital-twin modeling (Trayanova lab collaboration).

Research Summary

  • Author of 80+ peer-reviewed publications (60 original research articles, 11 reviews, multiple case reports, editorials, and a scientific statement); h-index 31 with ~3,300 citations.
  • Co-author on the landmark NEJM digital-twin–guided VT ablation trial.
  • Lead inventor on U.S. Patent No. 12,531,145 for real-time image-guided arrhythmia localization.
  • Director/PI of the IRB-approved JHH ACHD Electrophysiology Registry (~40 patients enrolled).
  • Clinical collaborator on a pre-clinical biological pacemaker program (large-animal, catheter-based delivery).

Selected Publications

  • Aronis KN, Ali RL, Prakosa A, Ashikaga H, Berger RD, Hakim JB, Liang J, Tandri H, Teng F, Chrispin J, Trayanova NA. Accurate Conduction Velocity Maps and Their Association With Scar Distribution on Magnetic Resonance Imaging in Patients With Postinfarction Ventricular Tachycardias. Circ Arrhythm Electrophysiol. 2020 Apr;13(4):e007792

  • Aronis KN, Berger RD, Calkins H, Chrispin J, Marine JE, Spragg DD, Tao S, Tandri H, Ashikaga H. Is human atrial fibrillation stochastic or deterministic? -Insights from missing ordinal patterns and causal entropy-complexity plane analysis. Chaos. 2018 Jun;28(6):063130

  • Aronis KN, Okada DR, Xie E, Daimee UA, Prakosa A, Gilotra NA, Wu KC, Trayanova N, Chrispin J. Spatial Dispersion Analysis of LGE-CMR for Prediction of Ventricular Arrhythmias in Patients with Cardiac Sarcoidosis. Pacing Clin Electrophysiol. 2021 Dec;44(12):2067-2074

  • Aronis KN, Prakosa A, Bergamaschi T, Berger RD, Boyle PM, Chrispin J, Ju S, Marine JE, Sinha S, Tandri H, Ashikaga H, Trayanova NA. Characterization of the Electrophysiologic Remodeling of Patients With Ischemic Cardiomyopathy by Clinical Measurements and Computer Simulations Coupled With Machine Learning. Front Physiol. 2021 Jul 14;12:684149

  • Aronis KN, Yang E, Barnes BT, Cedars A, De La Uz CM, Barth AS. Left bundle pacing in a patient with atrioventricular canal defect presenting with atrial standstill and junctional bradycardia. Heart Rhythm Case Reports. Volume 9, Issue, P314-318, May 2023

Courses & Syllabi

  • Director, Electrophysiology Elective Rotation (JHH) — established invasive, device, and consultative EP electives for general cardiology fellows beyond ACGME-required time; 2–3 fellows complete each year.
  • Pre-EP Curriculum (JHH) — designed a structured preparatory curriculum for fellows entering EP fellowship, including procedural exposure at Sibley Memorial Hospital and guided didactic resources.
  • Core Faculty, ACGME-Accredited ACHD Fellowship (JHH) — sole electrophysiology-expertise core faculty, delivering EP didactics and case-based instruction.

Patents

U.S. Patent No. 12,531,145 — "System and Method for Real-Time Guidance of an Electrophysiology Catheter for Targeting a Location of Origin of an Arrhythmia." Lead Inventor (with Berger RD, Trayanova NA, Zhou S, Tandri H). Filed December 2, 2020; issued January 20, 2026. Johns Hopkins University (Ref. P15775-03).

Honors

  • The W. Leigh Thompson Excellence in Research: Clinical Research Fellow Award Finalist, The Johns Hopkins Department of Medicine/ Whiting School of Engineering, 1/1/19
  • Travel Scholarship; Heart Rhythm Society 40th Annual Meeting, Heart Rhythm Society, 1/1/19
  • 1st Prize; BIDMC - Harvard Medical School Residents/Fellows Clinical Research Day, BIDMC - Harvard Medical School, 1/1/11

Lectures & Presentations

  • Invited regional, national, and international lectures on complex ventricular tachycardia ablation, adult congenital heart disease electrophysiology, and computational/digital-twin approaches to arrhythmia management.
  • Conference presentations at Heart Rhythm Society (HRS) and related scientific sessions, including travel-award–recognized work.
  • Fellowship and divisional teaching conferences; named 2025 Teacher of the Year by the JHH Cardiology Fellowship.

Memberships

  • Fellowships

  • Fellow, American College of Cardiology (FACC)
  • Fellow, Heart Rhythm Society (FHRS)
  • Fellow, European Society of Cardiology (FESC)
  • Fellow, European Heart Rhythm Association (FEHRA)
  • Society Memberships

  • American College of Cardiology (ACC)
  • Heart Rhythm Society (HRS)
  • Pediatric and Congenital Electrophysiology Society (PACES)
  • International Society for Adult Congenital Heart Disease (ISACHD)
  • European Society of Cardiology (ESC)
  • European Heart Rhythm Association (EHRA)

Professional Activities

Media and Professional Association Recognitions

Dr. Aronis's work has been featured by Johns Hopkins Medicine, including a 2024 profile of his innovative approaches to electrical heart complications in congenital heart disease—highlighting 3D-printed cardiac modeling for conduction system pacing and the first intraoperative atrial tachycardia ablation in an adult congenital patient. His role as co-author on the landmark NEJM digital-twin ventricular tachycardia ablation trial was covered by Johns Hopkins University News. He was named 2025 Teacher of the Year by the Johns Hopkins Cardiology Fellowship, and is a Fellow of the American College of Cardiology, Heart Rhythm Society, European Society of Cardiology, and EHRA.

Editorships of Academic Journals

Dr. Aronis serves in editorial leadership across several peer-reviewed cardiovascular journals. He is an Associate Editor for JACC: Case Reports and served as Guest Editor-in-Chief for its ECG Challenge special issue. He has been an Associate Editor for Frontiers in Physiology since 2020 and a Review Editor for Frontiers in Medical Technology. He is a Section Board Member for the Journal of Cardiovascular Development and Disease and an Editorial Board member for Cardiogenetics. He also serves as Guest Editor for the second edition of the Advances in Cardiac Resynchronization Treatment collection in the Journal of Clinical Medicine.

Leadership Positions in Professional Associations

Dr. Aronis holds national leadership roles across major cardiology and electrophysiology societies. He serves on the American College of Cardiology Electrophysiology Section Leadership Council (2026–2029) and the ABIM Cardiac Electrophysiology Board Item-Writing Committee (reappointed 2026–2028). He is a member of the ACC/ABIM EP Collaborative Maintenance Pathway Standard-Setting Committee, the Heart Rhythm Society 2026 Program Committee (Pediatric and Adult Congenital EP Section), and the PACES Communications Committee. He served on the writing committee for the HRS/ISACHD/PACES Scientific Statement on adult congenital EP programs, authoring its Quality of Care section, and is a Department of Defense CDMRP peer reviewer.

Locations

  1. Levi Watkins, Jr., M.D., Outpatient Center
    • 601 North Caroline Street, Suite 7200, Baltimore, MD 21287
    • Get Directions
  2. Greater Baltimore Medical Center
    • 6569 North Charles Street, Pavilion West STE 600, Baltimore, MD 21204
    • Get Directions

Expertise

Education

  • Fellowship: Johns Hopkins University School of Medicine, Cardiac Electrophysiology, 2021
  • Graduate School: University of Patras School of Medicine, PhD, 2021
  • Fellowship: Johns Hopkins University School of Medicine, Cardiovascular Disease, 2019
  • Residency: Boston Medical Center, Internal Medicine, 2015
  • Medical Education: University of Patras School of Medicine, MD, 2008

Board Certifications

  • Clinical Cardiac Electrophysiology: American Board of Internal Medicine, 2021
  • National Board of Echocardiography: National Board of Echocardiography, 2021
  • Adult Comprehensive Echocardiography: National Board of Echocardiography, 2021
  • Cardiovascular Disease: American Board of Internal Medicine, 2018

Insurance

Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

4.9 out of 5

119 ratings, 54 reviews

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Search reviews
    5 out of 5 stars
    Reviewed on 5/19/2026

    Easy toCommunicate With.

    5 out of 5 stars
    Reviewed on 5/19/2026

    Dr Aronis is wonderful, very smart guy.

    5 out of 5 stars
    Reviewed on 5/19/2026

    Received excellent care from Dr. Aronis and his medical team.

    5 out of 5 stars
    Reviewed on 5/19/2026

    Dr. Aronis is very helpful and concerned about my heart pulse issues

    5 out of 5 stars
    Reviewed on 5/11/2026

    Excellent

    5 out of 5 stars
    Reviewed on 5/11/2026

    Provider was excellent, he showed both compassion and care for my situation.

    5 out of 5 stars
    Reviewed on 5/11/2026

    An incredible physician and genuine person changing my health for the better.

    5 out of 5 stars
    Reviewed on 5/11/2026

    Excellent doctor.

    5 out of 5 stars
    Reviewed on 4/27/2026

    Dr Aronis is an outstanding doctor coupled with best bedside manners.

    5 out of 5 stars
    Reviewed on 4/21/2026

    I loved my appointment with Dr. Aronis. He took his time, was thorough, shared helpful Information, and seemed concerned about my overall heath. He was also pleasant and we smiled a lot during the visit. He was very easy to be with almost like a family member.

    5 out of 5 stars
    Reviewed on 4/21/2026

    Dr. Aronis is a great listener and a skilled practitioner. I have complete confidence in his ability to take care of me.

    5 out of 5 stars
    Reviewed on 4/7/2026

    He was very thorough

    5 out of 5 stars
    Reviewed on 4/7/2026

    Excellent caring provider

    5 out of 5 stars
    Reviewed on 3/31/2026

    Excellent. None better

    5 out of 5 stars
    Reviewed on 3/23/2026

    Very good

    5 out of 5 stars
    Reviewed on 3/10/2026

    Not additional comments, I was very satisfied with the Doctor and others.

    5 out of 5 stars
    Reviewed on 3/9/2026

    Professional.

    5 out of 5 stars
    Reviewed on 3/3/2026

    Dr. Aronis is an excellent physician! I appreciated the way he explained my health issues and provided several different treatment options.

    5 out of 5 stars
    Reviewed on 2/17/2026

    Knowledgeable, and explained everything so I could understand the issues

    5 out of 5 stars
    Reviewed on 2/17/2026

    Very knowledgeable and receptive for questions and discussion

    5 out of 5 stars
    Reviewed on 2/17/2026

    Answered any questions, asked my permission to include another doctor in the appointment, discussed followup. Personable.

    5 out of 5 stars
    Reviewed on 2/9/2026

    Great collaboration with my cardiologist. Thoughtful explanations about rationale for testing prior to heart valve replacement

    5 out of 5 stars
    Reviewed on 2/3/2026

    Explain everything I needed to know about my condition

    5 out of 5 stars
    Reviewed on 1/20/2026

    My husband and I very much Like Dr Aronis. He's helpful and hopefully has figured out my problem

    5 out of 5 stars
    Reviewed on 1/12/2026

    Excellent Doctor.

    5 out of 5 stars
    Reviewed on 1/12/2026

    Knowledge, friendly, caring

    5 out of 5 stars
    Reviewed on 1/6/2026

    I have every confidence in Dr. Aronis. I appreciate his gracious, interested manner and cheerful positiveness.

    5 out of 5 stars
    Reviewed on 1/6/2026

    Dr. Aronis is an extraordinary expert in his field, combining advanced research in electrophysiology as well as strong surgical ability.

    5 out of 5 stars
    Reviewed on 1/5/2026

    The Best!

    5 out of 5 stars
    Reviewed on 12/22/2025

    Great care from provider

    5 out of 5 stars
    Reviewed on 12/22/2025

    This provider is an excellent doctor. He is part of my Hopkins team that has saved my life. I highly recommend him.

    5 out of 5 stars
    Reviewed on 12/8/2025

    Excellent - explained things very well

    5 out of 5 stars
    Reviewed on 12/8/2025

    Dr Aronis is awesome. Takes time , listens to concerns , explains in detail, and always asks for questions or concerns. Highly recommend!

    5 out of 5 stars
    Reviewed on 12/8/2025

    Excellent Doctor. Listen to me carefully, explain things properly and came up with the plan of actions

    5 out of 5 stars
    Reviewed on 12/2/2025

    Provider had a very good manner about him which put me at ease talking to him. He went beyond my expectations with explanations and for the first time in over a year I feel I can move on with my life without fear of not waking up in the morning.

    5 out of 5 stars
    Reviewed on 12/2/2025

    Great eye contact, listening skills, and knowledge

    5 out of 5 stars
    Reviewed on 11/24/2025

    Very good experience with Dr Aronis

    5 out of 5 stars
    Reviewed on 11/24/2025

    Dr Aronis explained options extremely well. He was personable, interested in my case and of course so smart!

    5 out of 5 stars
    Reviewed on 11/24/2025

    Hard to understand his broken English

    5 out of 5 stars
    Reviewed on 11/18/2025

    Was very good at explaining what was happening with my heart and how he will fix my issuesVery friendly.

    5 out of 5 stars
    Reviewed on 11/18/2025

    Excellent

    5 out of 5 stars
    Reviewed on 11/4/2025

    Excellent

    5 out of 5 stars
    Reviewed on 11/4/2025

    He was clear on technical issues and he was a good listener

    5 out of 5 stars
    Reviewed on 10/27/2025

    Excellent care provided

    5 out of 5 stars
    Reviewed on 10/21/2025

    Provided great insight and lifestyle suggestions I should consider.

    5 out of 5 stars
    Reviewed on 10/7/2025

    All my questions were answered about an upcoming procedure.

    5 out of 5 stars
    Reviewed on 9/19/2025

    This was my very first visit to this provider he spend time & explained my situation to me in a way that I understood .

    5 out of 5 stars
    Reviewed on 9/15/2025

    Dr. Aronis is a great doctor and has a great bedside manner and the surgery he performed on me was successful 100%.

    5 out of 5 stars
    Reviewed on 8/29/2025

    Very professional and thorough

    5 out of 5 stars
    Reviewed on 8/5/2025

    The doctor and his team gave back to me my stamina, energy and basically a much better life. And I just thought that was a general decline due to my age. ( never been 67 before). I feel as if have been re-born again. What Dr. Aronis gave to me with the procedure he performed I would not believed it. But I am living it and getting stronger every day. Thank you Dr. Aronis and [staff] for his recommendation. I have been seeing [staff] for quite sometime and think the world of him.

    5 out of 5 stars
    Reviewed on 7/29/2025

    Answered my concerns; discussed options to manage my condition

    5 out of 5 stars
    Reviewed on 7/29/2025

    I was a new patient and was very pleased with the appointment. Dr Aronis was very helpful. He took time to explain options and give advice.

    5 out of 5 stars
    Reviewed on 7/21/2025

    Excellent. Professional and pleasant. Explained things clearly. A wonderful and caring physician.

    5 out of 5 stars
    Reviewed on 7/15/2025

    Very satisfactory experience