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Nicolas Madsen, M.D.

Nicolas Madsen, M.D.

Titles and Appointments

Chief, Division of Pediatric Cardiology

Professor & Division Chief

Endowed Title
Pogue Family Distinguished Chair in Pediatric Cardiology
Schools
Medical School
Departments
Pediatrics

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For more information on the doctor and patient care, please visit the clinical profile.

  • Biography

    Nicolas Madsen, M.D., M.P.H., earned both his M.P.H. and M.D. at the University of Washington. He completed his residency in 2008, a fellowship in Epidemiology in 2009, and another fellowship in Pediatric Cardiology in 2012, all at the University of Washington.

    Dr. Madsen is a pediatric cardiologist with academic and clinical expertise in acute care cardiology and long-term outcomes of children with congenital heart disease (CHD). Dr. Madsen has a history of productive research examining the long-term outcomes of the CHD population. This work is aided by his formal appointment at Aarhus University, Denmark within the Department of Clinical Epidemiology. Dr. Madsen has mentored medical and PhD students, post-docs, as well as categorical cardiology fellows through many of these investigations, which has led to several international awards for his mentees (including AAP and AHA). In addition, Dr. Madsen has partnered with faculty within the Heart Institute, as well as at external centers including the NIH, to design and execute projects focused on the long-term health and outcomes of the CHD community. Dr. Madsen’s scholarly leadership experience includes his attention to acute care cardiology outcomes as exemplified by his history of co-founding the Pediatric Acute Care Cardiology Collaborative (PAC3), an organization that he leads today as the Executive Director. The aim of this organization, and Dr. Madsen’s work, is to improve the care and outcomes of hospitalized cardiac patients through traditional research and quality improvement science.

    His expertise is in acute care cardiology, caring for children hospitalized with congenital and acquired heart conditions and adults with congenital heart disease. He is co-founder and co-Director of the Pediatric Acute Care Cardiology Collaborative, an international learning network with over 40 hospital member centers that aims to drive better outcomes and experiences for children hospitalized with heart conditions.

    He is presently an Associate Professor of Pediatrics and Population and Data Scientists at UT Southwestern Medical Center and serves as the Chief of Pediatric Cardiology at UT Southwestern and Chief of Cardiology and Co-Director of The Heart Center at Children’s Health.

  • Education
    Medical School
    University of Washington School of Medicine (2005)
    Residency
    University of Washington/Seattle Children's Hospital (2008), Pediatrics
    Other Post Graduate Training
    University of Washington School of Public Health (2011)
    Fellowship
    University of Washington/Seattle Children's Hospital (2012), Pediatric Cardiology
  • Research Interest
    • Acute Care Cardiology outcomes such as hospital length of stay, complications, and hospital readmission.
    • Long term cardiac and non-cardiac health outcomes in the congenital heart disease population.
    • Quality Improvement Science
  • Publications
    Surveillance Alone After a Subtotal Resection of Disseminated Juvenile Xanthogranuloma
    Mu A, Prasad S, Rakheja D, Timmons C, Madsen N, Avula S, Davies R, Sadanand A Pediatric Blood and Cancer 2026 Mar 73
    Response by Gal et al to Letter Regarding Article, “Predictors of Neurodevelopmental and Mental Health Diagnoses in Congenital Heart Disease: A Danish Population-Based Cohort Study”
    Gal DB, Farkas DK, Laugesen K, Sørensen HT, Kasparian NA, Madsen NL, Miles KG Circulation: Cardiovascular Quality and Outcomes 2025 Nov 18 e012690
    Predictors of Neurodevelopmental and Mental Health Diagnoses in Congenital Heart Disease: A Danish Population-Based Cohort Study
    Miles KG, Gal DB, Farkas DK, Laugesen K, Sørensen HT, Kasparian NA, Madsen NL Circulation: Cardiovascular Quality and Outcomes 2025 Aug 18 e011944
    Cardiac Juvenile Xanthogranulomatosis in an Infant Presenting With Pericardial Effusion
    Mehdi MQ, Doctor P, Kelley S, Madsen N JACC: Case Reports 2025 Apr 30
    Mitigating Alarm Fatigue and Improving the Bedside Experience by Reducing Nonactionable Alarms
    Yang JK, Su F, Graber-Naidich A, Hedlin H, Madsen N, DeSousa C, Feehan S, Graves A, Palmquist A, Cable R, Kipps AK Journal of Pediatrics 2025 Jan 276
    Sustaining and spreading success: Expanding a multicentre quality improvement project to reduce postoperative chest tube duration after paediatric CHD
    Sheth SS, Tignor A, Connelly C, Madsen NL, Graupe M, Bates KE, Figueroa M, Greiten LE, Hart SA, Jensen M, Morse T, Patel M, St. John A, Saudek D, Kipps AK Cardiology in the Young 2025
    Evaluation and treatment of infective endocarditis in children and adolescents with underlying CHD: a Paediatric Acute Care Cardiology Collaborative Clinical Practice Guideline
    Aldrich JB, Madsen N, Armstrong AK, Burns J, Collins M, Coward C, Davila SZ, Dimas V, Erdmann A, Fatemi Y, Goldstein BH, Harahsheh AS, Khan S, Kipps A, Kwon MH, Lyman E, Maples H, Merklinger SL, Sganga D, Stang C, Subramanyan RK, Vaikunth S, Gal D Cardiology in the Young 2025
    Variation in central venous catheter practice in paediatric acute care cardiology
    Rodts M, Pater C, Patel SS, Schiller A, Graupe M, Ware AL, Madsen N Cardiology in the Young 2025
    Angiographic tool to detect pulmonary arteriovenous malformations in single ventricle physiology
    Spurgin SB, Arar YM, Zellers TM, Wang J, Madsen NL, Veeram Reddy SR, Cleaver O, Divekar AA Cardiology in the Young 2024 Sep 34 1871-1876
    Caregiver and provider attitudes toward family-centred rounding in paediatric acute care cardiology
    Gal DB, Rodts M, Hills BK, Kipps AK, Char DS, Pater C, Madsen NL Cardiology in the Young 2024 Jan 34 67-72
  • Books

    Featured 

  • Honors & Awards
    • Cincinnati Top Doctors
      (2019-2020)
    • Patient Education Advocacy Award
      Home Care for Heart Health (2018)
    • Clinical Care Achievement Award
      Cincinnati Children's Hospital (2017)
    • Heart Hero Award
      Pediatric Congenital Heart Association (2017)
    • Cincinnati Children's Hospital
      Make a Difference Award (2016)
    • Advocacy Day Training Scholarship Award
      AAP Section on Cardiology and Cardiac Surgery Washington, DC (2015)
    • Early Bird Career (Specialty Focus) Best Poster
      AHA 2015 Scientific Sessions (2015)
    • Third place abstract
      24th Annual Symposium on the Adult with Congenital Heart Disease (2014)
    • Outstanding Fellow Teaching Award
      Seattle Children's Hospital (2012)
    • Corkey Travel Award
      Seattle Children's Hospital, University of Washington School of Medicine (2011)
    • Education Travel Grant Recipient
      AAP Section on Cardiology and Cardiac Surgery, Boston, MA (2011)
    • Fellow's Teaching Award
      Seattle Children's Hospital, Seattle, WA (2011)
    • Finalist Young Investigator Award
      AAP Section on Cardiology and Cardiac Surgery, Boston, MA, (2011)
    • Outstanding Clinical Research Award
      Seattle Children's Fellow's College Research Day (2010-2012)
    • Outstanding Investigator Award
      Cardiology 2010 Children's Hospital of Philadelphia, Orlando, FL (2010)
    • Young Investigator's Travel Award
      Pediatric Academic Society Annual Meeting, Vancouver, Canada (2010)
    • Scientific Sessions 2019, Top Abstract (CVDY)
      American Heart Association
  • Professional Associations/Affiliations
    • Adara Group, Medical Consultant (2011-2015)
    • American Academy of Pediatrics, Fellow (2012)
    • American College of Cardiology, Member (2009)
    • American Heart Association Science and Clinical Education Lifelong Learning (SCILL) Committee of the Council on Cardiovascular Disease in the Young (CVDY), Member (2016-2019)
    • American Heart Association, Member (2012)
    • American Medical Association (2001-2005)
    • Center for Clinical and Translational Science and Training, University of Cincinnati (2012)
    • Congenital Heart Public Health Consortium, Member (2015-2019)
    • Institute of Translational Heart Sciences University of Washington (2009-2012)
    • Membership & Communications Committee American Heart Association, Cardiovascular Disease in the Young (CVDY), Chair (2017-2019)
    • Mended Little Hearts, Medical Advisory Board (2014-2016)
    • National Institute of Heath Loan Repayment Program, Ambassador Network (2011)
    • Pediatric Cardiology Critical Care Consortium (PC4), Executive Committee (2016)
    • Pediatric Congenital Heart Association, Medical Advisory Board (2014)
    • Pediatric Heart Network, Member & Investigator (2013)