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Myron L. Weisfeldt, M.D.

University Distinguished Service Professor
Professor of Medicine


Appointment Phone


Main Location

The Johns Hopkins Hospital

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

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

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International Patients

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

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  • University Distinguished Service Professor
  • Former Director, Department of Medicine, Johns Hopkins University School of Medicine
  • Former Physician-in-Chief, Johns Hopkins Hospital
  • Former Director of Medicine, Johns Hopkins Medicine
  • Professor of Medicine

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 443-997-0270

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map

Contact for Research Inquiries

1830 East Monument Street
Suite 9026
Baltimore, MD 21287 map
Phone: 410-955-6642 or 410-614-4584
Fax: 410-614-8510


Cardiology , Cardiovascular Disease, Internal Medicine

Research Interests

Cardiopulmonary Resuscitation and Sudden Death


Dr. Myron Weisfeldt was the William Osler Professor of Medicine and Chairman of the Department of Medicine at Johns Hopkins School of Medicine from 2001 to 2014. He was also Physician-in-Chief of the Johns Hopkins Hospital. Dr. Weisfeldt has broad interests in hemodynamics, cardiovascular aging, and resuscitation from cardiac arrest. Dr. Weisfeldt received a BA and MD from the Johns Hopkins University. He trained in Cardiology at the Massachusetts General Hospital and the National Institutes of Health. From 1991 to 2001, he was Chairman of the Department of Medicine and Samuel Bard Professor of Medicine at the Columbia University College of Physicians and Surgeons and Director of the Medical Service at the Columbia-Presbyterian Campus of the New York Presbyterian Hospital. From 1975 to 1991, he was Director of the Cardiology Division at the Johns Hopkins University School of Medicine. Dr. Weisfeldt was Chairman of the Cardiology Advisory Board of the National Heart Lung and Blood Institute from 1987 to 1990 and held the position of President of the American Heart Association in 1990. Dr. Weisfeldt is a member of the Institute of Medicine. His research interests have included heart function, age changes in the heart and circulation, and cardiopulmonary resuscitation. In 2003 he was appointed by the National Heart, Lung, and Blood Institute to be the Study Chair for a large-scale ongoing clinical trials network to conduct randomized definitive trials of devices, drugs and other therapies for out-of-hospital cardiac arrest and severe traumatic injury. This network is called Resuscitation Outcomes Consortium. more

    Additional Information

  • Education +
    • B.A., Johns Hopkins University (Year I/Human Biology Pgm) (Maryland) (1962)
    • M.D., Johns Hopkins University School of Medicine (Maryland) (1965)
  • Research & Publications +

    Selected Publications


    1. Weisfeldt ML, Wright JR, Shreiner DP, Lakatta EG, Shock NW: Coronary flow and oxygen extraction in perfused hearts of senescent male rats. J. Appl. Physiol. 30:44‑49, 1971.
    2. Lakatta EG, Gerstenblith G, Angell CS, Shock NW, Weisfeldt ML: Diminished inotropic response to aged myocardium to catecholamines. Circ. Res. 36:262‑269, 1975.
    3. Weiss JL, Frederiksen JW, Weisfeldt ML: Hemodynamic determinants of the time course of fall in canine left ventricular response. J. Clin. Invest. 58:751‑760, 1976.
    4. Gerstenblith G, Lakatta EG, Weisfeldt ML: Age change in myocardial function and exercise response. Prog. Cardiovasc. Dis. 19:1‑21, 1976.
    5. Templeton GH, Platt MR, Willerson JT, Weisfeldt ML: Influence of aging left ventricular hemodynamic and stiffness in beagles. Circ. Res. 44(2):189‑194, 1977.
    6. Taylor GJ, Tucker WM, Greene HL, Rudikoff MT, Weisfeldt ML: Importance of prolonged compression during cardiopulmonary resuscitation in man. New Engl. J. Med. 296:1515‑1517, 1977.
    7. Gerstenblith G, Frederiksen J, Yin FCP, Fortuin NJ, Lakatta EG, Weisfeldt ML: Echocardiographic assessment of a normal adult aging population. Circulation 56:273‑278, 1977.
    8. Spurgeon HA, Thorne PA, Yin FCP, Shock NW, Weisfeldt ML: Increased dynamic stiffness of trabeculae carneae from the senescent rat. Am. J. Physiol. 1:H373‑H378, 1977.
    9. Yin FCP, Raizes GS, Guarnieri T, Spurgeon HA, Lakatta EG, Fortuin NJ, Weisfeldt ML: Age associated decrease in ventricular response to hemodynamic stress during beta‑adrenergic blockade. Brit. Heart J. 40:1349‑1355, 1978.
    10. Mirowski M, Reid PR, Mower MM, Watkins L, Gott VL, Schauble J, Langer A, Heilman MS, Fischell RE, Weisfeldt ML: Termination of malignant ventricular arrhythmias with an implanted automatic defibrillator in human beings. New Engl. J. Med. 303:322‑324, 1980.
    11. Yin FCP, Weisfeldt ML, Milnor WR: The role of aortic input impedance in the decreased cardiovascular response to exercise with aging in the dog. J. Clin. Invest. 68:28‑38, 1981.
    12. Weisfeldt ML, Becker L: Resuscitation after cardiac arrest - A 3-phase time-sensitive model. Commentary: JAMA. 288:23, 3035-3038, 2002.
    13. The Public Access Defibrillation Trial Investigators (Weisfeldt ML as a member of the steering committee and writing group): Public-access defibrillation and survival after out-of-hospital cardiac arrest. NEJM. 351:637-646, 2004
    14. Weisfeldt ML, Sitlani CM, Ornato JP, Rea T, Aufderheide TP, Davis D, Dreyer J, Hess EP, Jui J, Maloney J, Sopko G, Powell J, Nichol G, Morrison LJ, and the ROC Investigators: Survival after application of automatic external defibrillators before arrival of the emergency medical system: evaluation in the resuscitation outcomes consortium population of 21 million. JACC.; 55:1713-20, PMID: 20394876, 2010
    15. Weisfeldt ML, Everson-Stewart S, Sitlani C, Rea T, Aufderheide TP, Atkins DL, Bigham B, Brooks SC, Foerster C, Gray R, Ornato JP, Powell J, Morrison LJ and the ROC Investigators: Ventricular tachyarrythmias after cardiac arrest in public versus at home. NEJM. 364:313-321, PMID: 21268723, 2011
    16. Stiell IG, Nichol G, Leroux BG, Rea TD, Ornat JP, Powell J, Christenso J, Callaway CW, Kudenchuk PJ, Aufderheide TP, Idris AH, Daya M, Wang HE, Morrison LJ, Davis D, Andrusiek D,Stephens S, Cheskes S, Schmicker RH, Fowler R, Vaillancourt C, Hostler D, Zive D,Pirrallo RG,Vilke G, Sopko G, Weisfeldt ML, and the Resuscitation Outcomes Consortim (ROC) Investigators. Early versus later rhythm in out-of-hospital cardiac arrest. NEJM. 365:9, 787-797, 2011


    09/09/83: Patent #4397306 – "Integrated system for cardiopulmonary resuscitation and circulation support." Weisfeldt ML, Tsitlik JE, Chandra NC.

    05/29/90: Patent #4928674 – "Cardiopulmonary Resuscitation and Assisted Circulation System" Halperin H, Chandra NC, Tsitlik JE, Guerci AD, Weisfeldt ML.

    08/02/93: Patent #5,217,010 – "ECG Amplifier and Cardiac Pacemaker for Use during Magnetic Resonance Imaging (NMR insensitive pacemaker)" Tsitlik JE, Weisfeldt ML, Halperin H, Levin H.

    04/08/94: European patent application #92913382.5‑2212. "MRI Interference‑filtered Monitor, Stimulator and Pacemaker." Tsitlik JE, Levin RH, Halperin HR, Weisfeldt ML.

    01/14/98: Patent #6,752,771 – "Cardiac assist method using an inflatable vest" Rothman NS, Gelfand M, Burkhoff D, Weisfeldt ML

    01/29/01: Patent #6,179,793 – Cardiac assist method using an inflatable vest" Rothman NS, Gelfand M, Burkhoff D, Weisfeldt ML

    10/29/13: Patent # 8,571,663 – "Portable Negative Pressure Ventilation Device And Methods And Software Related Thereto" Weisfeldt ML, Acharya, S, Haswell C, Khanna HS, Long Y, Pau VC, Singhal GK, Taqi N, Zhao L

  • Academic Affiliations & Courses +
  • Activities & Honors +


    • Phi Beta Kappa, Johns Hopkins, 1962
    • Alpha Omega Alpha, Johns Hopkins, 1965
    • American Physiological Society, 1974
    • American Society for Clinical Investigation, 1977
    • Interurban Clinical Club, 1982
    • Association of American Physicians, 1988
    • Fellow, American Association for Advancement of Science, 1991
    • Award of Merit recipient, American Heart Association, 1992
    • Elected member, Institute of Medicine, 1996
    • Gold Heart Award, American Heart Association, 1998
    • Member, American Clinical and Climatological Association, 2003
    • Recipient Herrick Award of the Council on Clinical Cardiology, American Heart Association, 2004
    • John Phillips Memorial Award, American College of Physicians, 2006
    • Diversity Award, Association of Professors of Medicine, 2008

    Professional Activities

    • Cardiology Advisory Board, NHBLI, 1986 - 1990
    • Chairman, Cardiology Advisory Board, National Heart, Lung and Blood Institute, 1987 - 1990
    • President, AHA (National), 1989 - 1990
    • Study Chair, Executive Committee Resuscitation Outcomes Consortium, National Heart, Lung, and Blood Institue, 2003
  • Videos & Media +
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