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Thomas A Traill, B.M. B.Ch., M.D.

Director, the E. Cowles Andrus Cardiac Clinic
Professor of Medicine


Appointment Phone


Main Location

Johns Hopkins Outpatient Center

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Director, the E. Cowles Andrus Cardiac Clinic
  • Associate Director, Osler Medical Housestaff Program
  • Professor of Medicine

Centers & Institutes



Johns Hopkins Outpatient Center

Appointment Phone: 443-997-0270

601 N. Caroline Street
Baltimore, MD 21287 map
Phone: 410-614-3140
Fax: 410-502-3727


Cardiology , Cardiomyopathy, Cardiovascular Disease, Clinical Cardiology, Congenital Heart Disease - Young Adult, General Cardiology, Heart Failure, Inherited Heart Diseases

Research Interests

Cardiomyopathy; Valvular Heart Disease; Aortic disease; Marfan syndrome; Echocardiography


Dr. Thomas Traill is director of the E. Cowles Andrus Cardiac Clinic at the Johns Hopkins Hospital. He is an expert in heart failure, heart valve disease, and inherited conditions that affect the heart such as Marfan syndrome. A professor of medicine at the Johns Hopkins School of Medicine, Dr. Traill is also the associate director of the Osler Medical Housestaff Training Program for residents.

Dr. Traill attended St. George’s Hospital Medical School in London, and pursued several residencies in general medicine, cardiology and nephrology at Brompton Hospital, Guy’s Hospital, Royal Free Hampstead NHS Trust in London and the Nuffield Department of Medicine in Oxford. He completed a fellowship in pediatric cardiology at Brompton Hospital and then became a British-American research fellow in the Johns Hopkins Departments of Medicine and Pediatrics before joining the faculty.

Dr. Traill researches structural heart diseases such as cardiomyopathy and valvular heart disease. He is a peer reviewer for seven medical journals, including British Heart Journal and Circulation. He has authored over 100 journal articles and book chapters and has given scores of invited lectures.

Dr. Traill co-authored and edited the 23rd edition of Principles and Practice of Medicine, the 1996 update to Sir William Osler’s classic and still-popular medical education textbook, originally published in 1893. more

Featured Video

Living with Warfarin

    Additional Information

  • Education +


    • St George's Hospital Medical School / MBBS (1971)


    • Brompton Hospital / Cardiology (1972)
    • Guy's Hospital / Nephrology (1973)
    • Nuffield Department of Medicine (1974)
    • Royal Free Hampstead NHS Trust / General Practice (1975)
    • Brompton Hospital (1977)


    • Brompton Hospital / Pediatric Cardiology (1978)


    • Royal College of Physicians (1974)
  • Research & Publications +

    Selected Publications

    Christian D. Nagy; Diane E. Alejo; Mary C. Corretti; William J. Ravekes; Jane E. Crosson; Philip J. Spevak; Richard Ringel; Kathryn A. Carson; Sara Khalil; Harry C. Dietz; et al. Tetralogy of fallot and aortic root dilation: A long-term outlook. Pediatric Cardiology. 2013;34(4):809-816.

    Thomas A. Traill. Valvular Heart Disease and Pregnancy. Cardiology Clinics. 2012;30(3):369-381.

    Kerunne S. Ketlogetswe; Joseph Aoki; Thomas A. Traill; Oscar H. Cingolani. Severe aortic regurgitation secondary to antisynthetase syndrome. Circulation. 2011;124(3):e40-e41.

    Baligh R. Yehia; Justin M. Bachmann; Thomas A. Traill. Scimitar syndrome: A rare cause of dyspnea in adults. Southern Medical Journal. 2010;103(6):578-580.

    Craig T. Basson; David R. Bachinsky; Robert C. Lin; Tatjana Levi; Jacob A. Elkins; Johann Soults; David Grayzel; Elena Kroumpouzou; Thomas A. Traill; Janine Leblanc-Straceski; et al. Mutations in human cause limb and cardiac malformation in Holt-Oram syndrome. Nature Genetics. 1997;15(1):30-35.

    Craig T. Basson; Glenn S. Cowley; Scott D. Solomon; Barbara Weissman; Andrew K. Poznanski; Thomas A. Traill; J.G. Seidman; Christine E. Seidman. The clinical and genetic spectrum of the Holt-Oram syndrome (heart-hand syndrome). New England Journal of Medicine. 1994;330(13):885-891.

  • Academic Affiliations & Courses +

    Graduate Program Affiliation

    Johns Hopkins University School of Medicine

    Courses and Syllabi

    Anatomy course

    Physiology course

    Pathophysiology course

    Clinical skills course

    Advanced clinical skills course

    Pathobiology course

    Rational therapeutics course

    Cardiology fellows orientation course

    CASE II rotation for medical residents

  • Activities & Honors +


    • British-American Fellow, British Heart Foundation, 1976
    • George J. Stuart Award, 1986
    • Fellow of the Royal College of Physicians, FRCP, 1992
    • Helen B. Taussig Award , American Heart Association, 1994
    • Alpha Omega Alpha, 1997
    • Chairman’s award for teaching, Department of Medicine, 2000
    • Nicholas J. Fortuin Award, 2003
    • Professors’ award for teaching excellence. , Johns Hopkins University, 2007


    • American Heart Association
    • International Society for Heart Transplantation
  • Videos & Media +

    Lectures and Presentations

    Valvular Heart Disease and Pregnancy
    Valve and aortic technology symposium. , London (01/30/2014)
    St Georges Hospital trust and Royal Society of Medicine

    Grand Rounds
    Baltimore (01/01/2014)
    Sinai Hospital

    Heart Disease in Pregnancy
    York (01/02/2010)
    York Hospital

    Invited faculty
    6th International Congress of Iranian Society of Cardiac Surgeons , Tehran (01/27/2009)

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