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Myron L. Weisfeldt

Headshot of Myron L. Weisfeldt
  • Medical Consultant Johns Hopkins Technology Ventures
  • Professor of Medicine

Research Interests

Cardiopulmonary Resuscitation; Sudden Death


Dr. Myron Weisfeldt is Professor of Medicine and  Medical Consultant for Johns Hopkins Technology Ventures. In this position he provides advice on strategies and evaluation of intellectual property of Johns Hopkins faculty.

From 2001 to 2014 Dr. Weisfeldt was the William Osler Professor of Medicine and Chairman of the Department of Medicine at Johns Hopkins School of Medicine. He was also Physician-in-Chief of the Johns Hopkins Hospital.  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 and from 1975 to 1991, was Director of the Cardiology Division at the Johns Hopkins.  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. 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. He is a member of the National Academy of Medicine. 

His research interests have included heart function, age changes in the heart and circulation, and cardiopulmonary resuscitation. Since 2003 he has been 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 sponsored by NHLBI and others. This network is called Resuscitation Outcomes Consortium and is now on no cost extension but continues completion of two randomized clinical trials. more


  • Medical Consultant Johns Hopkins Technology Ventures
  • Past Chairman Department of Medicine, Johns Hopkins Medicine
  • Professor of Medicine

Departments / Divisions

Centers & Institutes

Research & Publications

Selected Publications

Pollack RA, Brown SP, Rea T, Aufderheide T, Barbic D, Buick JE, Christenson J, Idris AH,Jasti J, Kampp M, Kudenchuk P, May S, Muhr M, Nichol G, Onato JP, Sopko G, Vaillancourt C, Morrison, L, Weisfeldt M and ROC Investigators ; Impact of Bystander Automated External Defibrillator Use on Survival and Functional Outcomes in Shockable Observed Public Cardiac Arrests; Circulation 2018 Feb 26 pii CIRCULATIONAHA.117.030700. doi:10.1161 [Epub ahead of print] PMID 29483086.

Weisfeldt ML Stop Randomizing All Cardiac Arrests. Circulation. 2016 Dec 20; 134 (25) 2035-2036 PMID 27994021

Peter J. Kudenchuk, M.D., Siobhan P. Brown, Ph.D., Mohamus Daya, M.D., Thomas Rea, M.D., M.P.H., Graham Nichol, M.D., M.P.H, Laurie J. Morrison, M.D., Brian Leroux, Ph.D., Christian Vaillancourt, M.D., Lynn Wittwer, M.D., Clifton W. Callaway, M.D., Ph.D., James Christianson, M.D., Debra Egan, M.Sc., M.P.H., Joseph Ornato, Myron L. Weisfeldt, M.D., Ian G. Stiell, M.D., Ahamed H. Idris, M.D., Tom P. Aufderheide, M.D., James V. Dunford, M.D., M. Riccardo Colella, D.O., M.P.H., Gary M. Vilke, M.D., Ashley M. Brienza, B.S., PatriceDesvigne-Nickens,M.D.,PamelaC.Gray,NREMT-P,RandalGray,M.Ed.,NREMT- P, Norman Seals, B.S., Ron Straight, M.Ed., and Paul Dorian, M.D., for the Resuscitation Outcomes Consortium Investigators. Amiodarone, Lidocaine, or Placebo in Out-of-Hospital Cardiac Arrest. NEJM. 2016, 347:1711-1722

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

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

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

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

Weisfeldt ML, Becker L: Resuscitation after cardiac arrest - A 3-phase time-sensitive model. Commentary: JAMA. 288:23, 3035-3038, 2002.


Integrated system for cardiopulmonary resuscitation and circulation support
Patent # 4397306 | 1983

Cardiopulmonary Resuscitation and Assisted Circulation System
Patent # 4928674 | 1990

ECG Amplifier and Cardiac Pacemaker for Use during Magnetic Resonance Imaging (NMR insensitive pacemaker)
Patent # 5217010 A | 1993

Mri interference-filtered monitor, stimulator and pacemaker
Patent # WO1992021286 A1 | 1994

Cardiac assist method using an inflatable vest
Patent # 6752771 B2 | 1998

Cardiac assist method using an inflatable vest
Patent # 6179793 B1 | 1998

Portable negative pressure ventilation device and methods and software related thereto
Patent # 8571663 B2 | 2013

Contact for Research Inquiries

1812 Ashland Ave Suite 110
Baltimore, MD 21205 map

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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
  • Gold Heart Award, American Heart Association, 1998
  • 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
  • Robert H Williams Distinguished Chair of Medicine, Association of Professors of Medicine, 2015


  • American Clinical and Climatological Association
  • National Academy of Medicine

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 Institute, 2003
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