The 20 Best Atrial Fibrillation Doctors Near Me in Michigan, US

Find the Top Atrial Fibrillation Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 1121 doctor with experience in Atrial Fibrillation near Michigan, US. Of these, 459 are Advanced, 437 are Experienced, 212 are Distinguished and 9 are Elite.

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1,121 providers found
    Elite in Atrial Fibrillation
    Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiology | Internal Medicine

    Frankel Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    James Froehlich, MD, MPH, is Professor of Internal Medicine, Assistant Chair of Medicine for Quality and Innovation, Director of Vascular Medicine, Director of MCORRP (Michigan Clinical Outcomes Research and Reporting Program), and Director of Anticoagulation at the University of Michigan Medical School. He received his undergraduate degree in political philosophy from Dartmouth College in 1982, and his medical degree from Dartmouth Medical School (now the Geisel School of Medicine at Dartmouth College), in 1986. He completed a residency and chief residency in internal medicine at the New England Deaconess Hospital, Harvard Medical School, under Dr. Robert Moellering.Dr. Froehlich completed a fellowship in cardiology and vascular medicine at the University of Michigan from 1993-1996. After completing a Masters Degree in Public Health at the Harvard School of Public Health (while serving as Director of Vascular Medicine at the Beth Israel Deaconess Medical Center), he joined the faculty of the University of Massachusetts Medical Center, with a joint appointment in vascular surgery and cardiology, before returning to Michigan and his current position. Dr. Froehlich has served on the editorial boards of the Journal of Vascular Surgery, the Cardiosource Review Journal, the Journal of Thrombosis and Thrombolysis, and as an ad hoc reviewer for JAMA, NEJM, Vascular Medicine and Circulation. He is Past-President of the Society for Vascular Medicine, and has been a member of the AHA/ACC Preoperative Guidelines Committee and of the AHA Scientific Sessions Program Committee. He has published over 120 articles and 11 book chapters. He is an ardent supporter of the Boston Red Sox, the University Musical Society, and serves as on the board of directors of the Ann Arbor Symphony Orchestra. 87148673. Dr. Froehlich is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 70 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Venous Thromboembolism (VTE), Aortic Dissection, Cardiac Ablation, and Pacemaker Implantation. Dr. Froehlich is board certified in Cardiovascular Disease.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Hakan Oral is a Cardiologist and an Internal Medicine provider practicing medicine in Ann Arbor, Michigan. Dr. Oral is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 50 other conditions, according to our data. His clinical expertise encompasses Cardiac Tamponade, Atrial Fibrillation, Ectopic Heartbeat, Cardiac Ablation, and Pacemaker Implantation. Dr. Oral is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Fred Morady is a Cardiologist and an Internal Medicine provider practicing medicine in Ann Arbor, Michigan. Dr. Morady is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 84 other conditions, according to our data. His clinical expertise encompasses Arrhythmias, Ectopic Heartbeat, Atrial Fibrillation, Paroxysmal Supraventricular Tachycardia (PSVT), and Cardiac Ablation.

    Learn about our expert tiers
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Jackson Liang is a Clinical Assistant Professor in the Division of Electrophysiology at the University of Michigan Hospital. He attended medical school at Michigan State University College of Osteopathic Medicine in East Lansing, MI, then completed his internal medicine residency at the Mayo Clinic in Rochester, MN. He subsequently completed Cardiology and Clinical Cardiac Electrophysiology fellowships at the Hospital of the University of Pennsylvania in Philadelphia, PA, where he was chief Electrophysiology fellow.Dr. Liang’s clinical interests within Electrophysiology are focused on management of complex arrhythmias, specifically catheter ablation for ventricular arrhythmias (PVCs and ventricular tachycardia, including epicardial ablation), as well as atrial fibrillation and atrial flutter ablation, SVT ablation, and device implantation.He is active clinically at the University of Michigan Hospital in Ann Arbor as well as the Ann Arbor Veterans Affairs Medical Center, and sees outpatients at the University of Michigan Northville Health Center. He is conversational in Mandarin Chinese. Dr. Liang is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Ventricular Tachycardia, Arrhythmias, Ectopic Heartbeat, Cardiac Ablation, and Pacemaker Implantation. Dr. Liang is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Brighton Center For Specialty Care

    7500 Challis Rd, Entrance 1, Level 2, 
    Brighton, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Rakesh Latchamsetty is a Clinical Assistant Professor in the Division of Electrophysiology at the University of Michigan Hospital. He has completed his training in Clinical Cardiac Electrophysiology at the University of Michigan and has since remained as faculty. He is active clinically at the University of Michigan Hospital in Ann Arbor as well as the Ann Arbor Veterans Affairs Medical Center. He has also established the Arrhythmia Clinic at the University of Michigan Brighton Health Center.Dr. Latchamsetty’s academic interests include research into mechanisms of atrial fibrillation and signal analysis, outcomes and techniques of ablation of atrial and ventricular arrhythmias, and database development and management. He is also involved in clinical trials evaluating defibrillator and pacemaker technology. His works include publications in peer reviewed journals as well as book chapters. He is also actively involved in the General Cardiology and Clinical Cardiac Electrophysiology Fellowship training programs. Dr. Latchamsetty is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Ectopic Heartbeat, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation. Dr. Latchamsetty is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Ghanbari is a cardiovascular electrophysiologist and treats patients who have arrhythmias. He enjoys his specialty because it is challenging and allows him to make a big difference in his patients’ lives very quickly. When not working, Dr. Ghanbari enjoys spending time with his daughters, cooking, running, reading, and traveling. Before completing his Advanced Cardiovascular Electrophysiology Fellowship at the University of Michigan, Dr. Ghanbari was a fellow at Providence Hospital and Medical Centers and a student at Wayne State University, the University of Michigan School of Public Health, American University of the Caribbean, and McMaster University. Dr. Ghanbari is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Ventricular Tachycardia, Arrhythmias, Cardiac Ablation, and Pacemaker Implantation. Dr. Ghanbari is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English

    Krit Jongnarangsin is a Cardiologist and an Internal Medicine provider practicing medicine in Ann Arbor, Michigan. Dr. Jongnarangsin is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Ectopic Heartbeat, Atrial Fibrillation, Arrhythmias, Cardiac Ablation, and Pacemaker Implantation.

    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine
    Elite in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Internal Medicine

    Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Aman Chugh earned his medical degree in 1996 from Wayne State University School of Medicine, Detroit, Michigan. He completed his residency in in Internal Medicine at Barnes Hospital/Washington University Medical Center in 1999 in St. Louis, Missouri. Dr. Chugh completed his fellowship in cardiology and electrophysiology at the University of Michigan Hospital, Ann Arbor in 2003. He is currently an Associate Professor in the Department of Internal Medicine, Division of Cardiology. Dr. Chugh is board-certified in cardiology and electrophysiology. His clinical and research interests include catheter ablation of atrial fibrillation, atrial flutter, and mechanisms of atrial fibrillation, and arrhythmias arising after catheter ablation of atrial fibrillation. Dr. Chugh is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Atrial Tachycardia, Arrhythmias, Cardiac Ablation, and Pacemaker Implantation. Dr. Chugh is board certified in Cardiovascular Disease and Clinical Cardiac Electrophysiology.

    Elite in Atrial Fibrillation
    Internal Medicine
    Elite in Atrial Fibrillation
    Internal Medicine

    University Of Michigan Medical Center

    1500 E Medical Center Dr, 
    Ann Arbor, MI 
    Languages Spoken:
    English

    Michael Kuhne is an Internal Medicine provider practicing medicine in Ann Arbor, Michigan. Dr. Kuhne is rated as an Elite provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Fainting, Heart Block, Cardiac Ablation, and Pacemaker Implantation.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Cardiovascular Services - Bradford

    2900 Bradford Street Northeast, 
    Grand Rapids, MI 
    Experience:
    22+ years
    Languages Spoken:
    English
    Accepting New Patients

    Musa Dahu is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Grand Rapids, Michigan. He has been practicing medicine for over 22 years. Dr. Dahu is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 54 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Cardiomyopathy, Pacemaker Implantation, and Cardiac Ablation. Dr. Dahu is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Dahu is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiology | Internal Medicine
    Distinguished in Atrial Fibrillation
    Cardiology | Internal Medicine

    Frankel Cardiovascular Center

    1425 E Ann St, Floor 3 Reception C, 
    Ann Arbor, MI 
    Languages Spoken:
    English
    Offers Telehealth

    Geoff Barnes is a cardiologist and vascular medicine specialist at the University of Michigan Health System. He completed his undergraduate degree in biomedical engineering at Washington University in St. Louis (2003) followed by medical school at the University of Michigan (2007). He then completed an internal medicine residency (2010), chief residency in internal medicine (2011), cardiology fellowship (2014) and vascular medicine fellowship (2014) at the University of Michigan. His areas of research interest include anticoagulation, venous thromboembolism, quality improvement and shared decision making. He currently co-directs the Michigan Anticoagulation Quality Improvement Initiative (MAQI2) a six-centered BCBSM-sponsored anticoagulation quality improvement collaborative and registry. He is leading an NIH-sponsored study to improve the coordination and care of patients on chronic anticoagulants around the time of surgical procedures. Dr. Barnes is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 28 other conditions, according to our data. His clinical expertise encompasses Pulmonary Embolism, Venous Thromboembolism (VTE), Deep Vein Thrombosis, Embolectomy, and Thrombectomy. Dr. Barnes is board certified in Cardiovascular Disease.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Nuclear Medicine
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology | Nuclear Medicine

    Corewell Health Cardiovascular Services - Bradford

    2900 Bradford Street Northeast, 
    Grand Rapids, MI 
    Experience:
    26+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nagib Chalfoun is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Grand Rapids, Michigan. He has been practicing medicine for over 26 years. Dr. Chalfoun is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Cardiomyopathy, Arrhythmias, Pacemaker Implantation, and Cardiac Ablation. Dr. Chalfoun is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Chalfoun is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health William Beaumont University Hospital Heart & Vascular

    3601 West 13 Mile Road, 
    Royal Oak, MI 
    Experience:
    19+ years
    Languages Spoken:
    English, Gujarati , Hindi, Marathi, Spanish
    Accepting New Patients
    Offers Telehealth

    Nishaki Mehta is a Cardiologist practicing medicine in Royal Oak, Michigan. She has been practicing medicine for over 19 years. Dr. Mehta is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation. Dr. Mehta is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Mehta is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Heart Rhythm Clinic - 4550 Investment Dr

    4550 Investment Drive, Suite 250, 
    Troy, MI 
    Experience:
    40+ years
    Languages Spoken:
    English
    Accepting New Patients

    Brian Williamson is a Cardiologist practicing medicine in Troy, Michigan. He has been practicing medicine for over 40 years. Dr. Williamson is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, Pacemaker Implantation, and Cardiac Ablation. Dr. Williamson is board certified in American Board Of Internal Medicine, American Board Of Internal Medicine, and American Board Of Internal Medicine. Dr. Williamson is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Cardiovascular Services - Bradford

    2900 Bradford Street Northeast, 
    Grand Rapids, MI 
    Experience:
    29+ years
    Languages Spoken:
    English
    Accepting New Patients

    Andre Gauri is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Grand Rapids, Michigan. He has been practicing medicine for over 29 years. Dr. Gauri is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Familial Progressive Cardiac Conduction Defect, Cardiac Ablation, and Pacemaker Implantation. Dr. Gauri is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Gauri is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Cardiovascular Services - Bradford

    2900 Bradford Street Northeast, 
    Grand Rapids, MI 
    Experience:
    19+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Alfred Albano is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Grand Rapids, Michigan. He has been practicing medicine for over 19 years. Dr. Albano is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Cardiomyopathy, Ventricular Fibrillation, Pacemaker Implantation, and Cardiac Ablation. Dr. Albano is board certified in American Board Of Internal Medicine, American Board Of Internal Medicine, and American Board Of Internal Medicine. Dr. Albano is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Heart Rhythm Clinic - 4550 Investment Dr

    4550 Investment Drive, Suite 250, 
    Troy, MI 
    Experience:
    32+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ilana Kutinsky is a Cardiologist practicing medicine in Troy, Michigan. She has been practicing medicine for over 32 years. Dr. Kutinsky is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. She is also highly rated in 34 other conditions, according to our data. Her clinical expertise encompasses Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation. Dr. Kutinsky is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Kutinsky is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology
    Distinguished in Atrial Fibrillation
    Cardiac Electrophysiology | Cardiology

    Corewell Health Cardiovascular Services - Bradford

    2900 Bradford Street Northeast, 
    Grand Rapids, MI 
    Experience:
    19+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Brunner is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Grand Rapids, Michigan. He has been practicing medicine for over 19 years. Dr. Brunner is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Short QT Syndrome, Cardiomyopathy, Atrial Fibrillation, Pacemaker Implantation, and Cardiac Ablation. Dr. Brunner is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Brunner is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation

    Corewell Health William Beaumont University Hospital Cardiology - 27901 Woodward

    27901 Woodward Avenue, Suite 300, 
    Berkley, MI 
    Experience:
    20+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Salim Ahmed is a Cardiologist practicing medicine in Berkley, Michigan. He has been practicing medicine for over 20 years. Dr. Ahmed is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), His Bundle Tachycardia, Pacemaker Implantation, and Cardiac Ablation. Dr. Ahmed is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Ahmed is currently accepting new patients.

    Distinguished in Atrial Fibrillation
    Distinguished in Atrial Fibrillation

    Corewell Health William Beaumont University Hospital Cardiology - 4600 Investment Dr

    4600 Investment Drive, Suite 200, 
    Troy, MI 
    Experience:
    38+ years
    Languages Spoken:
    English
    Accepting New Patients

    William Devlin is a Cardiologist practicing medicine in Troy, Michigan. He has been practicing medicine for over 38 years. Dr. Devlin is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Atherosclerosis, Angina, and Atrial Fibrillation. Dr. Devlin is board certified in American Board Of Internal Medicine. Dr. Devlin is currently accepting new patients.

    Showing 1-20 of 1,121

    Last Updated: 04/28/2026

    What is the definition of Atrial Fibrillation?

    Atrial fibrillation (AF), also known as A-fib, is the most common type of irregular heartbeat (arrythmia) of the heart’s upper chambers (atria) which can lead to strokes, heart failure, blood clots in the heart and/or blockage of blood flow (ischemia) in the heart or other organs. Atrial fibrillation is frequently combined with a rapid heart rate (tachycardia) and occurs when the upper chambers of the heart (atria) receive abnormal electrical signals from the heart’s conduction system that causes the atria to quiver. Atrial fibrillation is categorized by the following four main types: Occasional (Paroxysmal) atrial fibrillation – This type of atrial fibrillation comes and goes, can last from minutes to hours, or even last as long as a week, or occur repeatedly, and may go away on its own. Persistent atrial fibrillation – In this type of atrial fibrillation, the irregular heart rhythm (arrythmia) doesn’t go away on its own and needs treatment to restore normal rhythm. Long-standing persistent atrial fibrillation – This type of atrial fibrillation occurs continuously, lasting longer than 12 months. Permanent atrial fibrillation – In this type of atrial fibrillation, the irregular heart rhythm cannot be restored to normal, in which case it becomes permanent, requiring heart medications and anticoagulants to prevent blood clots. Atrial fibrillation that occurs in individuals who do not have any heart defects or damage is called lone atrial fibrillation.