Rochester, Minnesota Clinical Profile


The research interests of Naser M. Ammash, M.D., include adult congenital heart disease, atrial fibrillation and echocardiography.

The large volume of patients evaluated and treated at Mayo Clinic provides Dr. Ammash and his colleagues with a unique opportunity to learn from their own experiences. There is a wealth of knowledge being accumulated regarding many important and pertinent aspects of cardiovascular diseases that enable him and his team to pursue their research interests.

Focus areas

  • Adult congenital heart disease. There is growing number of adult survivors of congenital heart disease — heart diseases you are both with — who have unique challenges and needs. Dr. Ammash and his colleagues focus on studying those specific challenges, learning from them and sharing their learning experience with other medical professionals.
  • Atrial fibrillation. This cardiac arrhythmia (irregular heartbeat) is very common in adults and increases the risk of stroke and heart failure. With their research, Dr. Ammash and his team focuses on better understanding the underlying mechanism for stroke in this population and identifying novel risk factors to determine who is at increased risk of stroke.
  • Echocardiography. This is an ultrasound of the heart that is commonly used to study heart structure and function. The research of Dr. Ammash and his team is focused on the assessment of ventricular (pumping chamber) function in patients with congenital heart disease and atrial (receiving chamber) function in patients with atrial fibrillation.

Significance to patient care

Dr. Ammash's research will lead to improved understanding of the challenges and needs of adults with congenital heart disease; better understanding of mechanisms for stroke and novel risk factors in people with atrial fibrillation; and improved assessment of heart function in people with congenital heart disease or atrial fibrillation.

Professional highlights

  • Member, Medical Advisory Board, Adult Congenital Heart Association
  • Member, Pediatric and Congenital Heart Disease Council, American Society of Echocardiography
  • Member, International Relations Task Force, American Society of Echocardiography
  • Member, Clinical Council, National Marfan Foundation
  • Member, Grown-Up Congenital Heart Workgroup, European Society of Cardiology
  • Member, Medical Board, Pan-Arab Congenital Heart Disease Association


See my publications


Primary Appointment

  1. Consultant, Division of Structural Heart Disease, Department of Cardiovascular Medicine
  2. Vice Chair for Academic Advancement and Faculty Development, Department of Cardiovascular Medicine

Joint Appointment

  1. Consultant, Division of Cardiovascular Ultrasound, Department of Cardiovascular Medicine

Academic Rank

  1. Professor of Medicine


  1. Fellow - Division of Cardiovascular Diseases & Internal Medicine, Adult Congenital Heart Disease Mayo Graduate School of Medicine, Mayo Clinic College of Medicine
  2. Chief Cardiology Fellow - Cardiovascular Disease University of Louisville
  3. Fellow - Cardiovascular Disease University of Louisville
  4. Resident - Internal Medicine University of Iowa Hospitals and Clinics
  5. Internship - Internal Medicine American University of Beirut Medical Center, American University of Beirut
  6. MD American University of Beirut
  7. BS - Biology American University of Beirut

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