Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Artificial Intelligence (AI) in Cardiovascular Medicine Cardiovascular Medicine Heart Rhythm and Physiological Monitoring Laboratory in Minnesota Heart Rhythm Clinic Pediatric Cardiology Sports Medicine Doctors who perform this procedure Edit search filters close Narrow your search By location Rochester, MN By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K There are no doctors whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R There are no doctors whose last name begins with the letter S S active Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: T Nicholas Y. Tan, M.D., M.S. Cardiac Electrophysiologist Rochester, MN Areas of focus: Atrial fibrillation ablation, Atrial flutter ablation, Implantable cardioverter-defibrillator insertion, Pacemaker inse...rtion, Implantable loop recorder insertion, SVT ablation, Ventricular tachycardia ablation, Atrial fibrillation, Bradycardia, Supraventricular tachycardia, Atrial flutter, Ventricular arrhythmia Show more areas of focus for Nicholas Y. Tan, M.D., M.S. Farris K. Timimi, M.D. Cardiologist Rochester, MN Areas of focus: Electrocardiogram, Echocardiogram, Holter monitoring, Remote hemodynamic monitoring, Heart failure, Coronary artery dis...ease, Dilated cardiomyopathy Show more areas of focus for Farris K. Timimi, M.D. ResearchMayo Clinic researchers with training in heart rhythm disorders study the diagnosis of heart conditions using electrocardiograms and other techniques in Mayo Clinic's Cardiovascular Research Center. Monitoring ECGs The experts of the Heart Rhythm and Physiological Monitoring Laboratory at Mayo Clinic research ways to improve the use of ECGs for people with heart conditions. Some areas of research include: Applying artificial intelligence with electrocardiograms to better diagnose and predict atrial fibrillation (AFib) and to diagnose conditions that have not been traditionally diagnosed with an electrocardiogram. Learning how ambulance ECGs affect the outcomes of people having a heart attack. Evaluating the overuse of certain heart tests in people with typical ECGs. Improving the use of ECGs to guide heart procedures called catheter ablation. At Mayo Clinic, you may have the opportunity to participate in clinical trials. Read more about the Heart Rhythm Disease Program in the Cardiovascular Research Center at Mayo Clinic. PublicationsSee a list of publications about echocardiography by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine. Research Profiles Edit search filters close Narrow your search By location Arizona Florida Minnesota View all View all physicians • Minnesota Asirvatham, Samuel J. M.D. Minnesota By Mayo Clinic Staff Electrocardiogram (ECG or EKG) care at Mayo Clinic Request an appointment AboutCare at Mayo Clinic April 02, 2024 Print Show references Heart tests. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health/heart-tests. Accessed Dec. 28, 2023. Goldman L, et al., eds. Approach to the patient with suspected arrhythmia. In: Goldman-Cecil Medicine. 27th ed. Elsevier; 2024. https://www.clinicalkey.com. Accessed Jan. 2, 2024. AskMayoExpert. Ambulatory heart rhythm monitoring. Mayo Clinic; 2023. Fowler GC, et al., eds. Office electrocardiograms. In: Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed Jan. 2, 2024. Medical review (expert opinion). Mayo Clinic. March 27, 2020. Libby P, et al., eds. Electrocardiography. In: Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12th ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed Jan. 2, 2024. Heart arrhythmia. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/heart-arrhythmia/symptoms-causes/syc-20350668. Accessed Jan. 2, 2024. Yao X, et al. Realtime diagnosis from electrocardiogram artificial intelligence-guided screening for atrial fibrillation with long follow-up (REGAL): Rationale and design of a pragmatic, decentralized, randomized controlled trial. American Heart Journal. 2024; doi:10.1016/j.ahj.2023.10.005. Noseworthy PA, et al. Artificial intelligence-guided screening for atrial fibrillation using electrocardiogram during sinus rhythm: A prospective non-randomised interventional trial. 2022; doi:10.1016/S0140-6736(22)01637-3. Greenland P, et al. 2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. 2010; doi:10.1161/CIR.0b013e3182051b4c. Medical review (expert opinion). Mayo Clinic. Jan 4, 2024. Related Acute coronary syndrome Angina Anorexia nervosa Aortic valve regurgitation Aortic valve stenosis ARDS Arteriosclerosis / atherosclerosis Atrial fibrillation Atrial flutter Atrial septal defect (ASD) Bradycardia Broken heart syndrome Bulimia nervosa Bundle branch block Cardiogenic shock Cardiomyopathy Chagas disease Chest pain Coarctation of the aorta Congenital heart defects in children Congenital heart disease in adults Coronary artery disease Diabetic ketoacidosis Dilated cardiomyopathy Dressler syndrome Ebstein anomaly Eisenmenger syndrome Ejection fraction: What does it measure? Electrocardiogram Endocarditis Enlarged heart Exercise stress test Heart arrhythmia Heart attack Heart disease Heart failure Heart murmurs Heart palpitations Holter monitor Hyperparathyroidism Hypertrophic cardiomyopathy Hypoparathyroidism Implantable loop recorder Kawasaki disease Left ventricular hypertrophy Long QT syndrome Low blood pressure (hypotension) Mitral valve disease Mitral valve prolapse Mitral valve regurgitation Mitral valve stenosis Multiple system atrophy Myocardial ischemia Myocarditis Noonan syndrome Orthostatic hypotension (postural hypotension) Panic attacks and panic disorder Patent ductus arteriosus (PDA) Pectus excavatum Pericardial effusion Pericarditis Premature ventricular contractions (PVCs) Pulmonary atresia Pulmonary atresia with intact ventricular septum Pulmonary atresia with ventricular septal defect Pulmonary edema Pulmonary valve stenosis Rheumatic fever Secondary hypertension Sick sinus syndrome Sudden cardiac arrest Tachycardia Tetralogy of Fallot Transposition of the great arteries Tricuspid valve regurgitation Tuberous sclerosis Vasovagal syncope Ventricular fibrillation Ventricular septal defect (VSD) Ventricular tachycardia Wolff-Parkinson-White (WPW) syndrome Show more related content News from Mayo Clinic AI-ECG tools can help clinicians identify heart issues early in women planning to have children April 29, 2025, 07:15 p.m. CDT Tomorrow's Cure: AI Powered Stethoscopes Improve Access to Heart Care Feb. 13, 2025, 02:02 p.m. CDT Research study shows the cost-effectiveness of AI-enhanced heart failure screening Dec. 04, 2024, 04:25 p.m. CDT Understanding your heart test: What to expect, how to prepare Feb. 26, 2024, 03:58 p.m. CDT Spotlight on early detection of 3 heart diseases using ECG-AI Feb. 22, 2024, 01:30 p.m. CDT Stress test abnormalities reveal more than just cardiovascular risks, Mayo Clinic study finds Sept. 06, 2023, 03:00 p.m. CDT Show more news from Mayo Clinic Products & Services A Book: Future Care A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Mayo Clinic in Rochester, Minnesota, has been recognized as one of the top Cardiology & Heart Surgery hospitals in the nation for 2024-2025 by U.S. News & World Report. Learn more about this top honor Electrocardiogram (ECG or EKG)AboutDoctors&DepartmentsCare atMayoClinic PRC-20214603 Tests & Procedures Electrocardiogram (ECG or EKG)