Dr Giardini

  • Chest pain
  • Heart murmur
  • Palpitations
  • Syncope
  • Echocardiogram
  • Congenital heart disease

Dr Alessandro Giardini

GMC: 6165846

Dr Alessandro Giardini is a top cardiologist based at Great Ormond Street Hospital (GOSH) in London, specialising in paediatric cardiology. An expert on congenital heart disease, Dr Giardini is Director of Inpatient Services at GOSH, and also provides outpatient consultations for all manner of heart problems in children, including palpitations, heart murmurs, chest pain, and heart valve issues.

Graduating from the University of Bologna in his native Italy, Dr Giardini went on to undergo extensive training in paediatric cardiology both in Bologna and in San Francisco, USA. He is actively involved in research, having published over 120 articles in peer-reviewed journals. His unit at GOSH is a world leader in cardiac care. His philosophy is a patient-centric approach, delivering treatment with compassion and understanding, and personalising his consultations and treatment to each child and their family.

  • Professional experience

    • Consultant Paediatric Cardiologist, Great Ormond Steet Hospital (2007 - present)
    • Consultant Paediatric Cardiologist, Harley Street Clinic (present)
    • Consultant Paediatric Cardiologist, The Portland Hospital (present)
    • Consultant Paediatric Cardiologist, Chase Farm Hospital (present)
    • Consultant Paediatric Cardiologist, The Cromwell Hospital (present)
    • Consultant Paediatric Cardiologist, University of Bologna (2004 - 2007)
  • Education

    • Research Fellow (Paediatric Cardiology), University of California, San Francisco (2004 – 2004)
    • Specialist Training in Cardiology, Università di Bologna (1999 – 2004)
    • MD, Universita degli Studi di Bologna (1992 - 1999)
  • Publications and conferences

    • Contribution of rare inherited and de novo variants in 2,871 congenital heart disease probands. Jin SC, Homsy J, Zaidi S, Lu Q, Morton S, DePalma SR, Zeng X, Qi H, Chang W, Sierant MC, Hung WC, Haider S, Zhang J, Knight J, Bjornson RD, Castaldi C, Tikhonoa IR, Bilguvar K, Mane SM, Sanders SJ, Mital S, Russell MW, Gaynor JW, Giardini A, Porter GA Jr, Srivastava D, Lo CW, Shen Y, Watkins WS, Yandell M, Yost H, Tristani-Firouzi M, Newburger JW, Roberts AE, Kim R, Zhao H, Kaltman JR, Goldmuntz E, Chung WK, Seidman JG, Gelb BD, Seidman CE, Lifton RP, Brueckner M.
    • Contribution of rare inherited and de novo variants in 2,871 congenital heart disease probands. Nat Genet. 2017 Nov;49(11):1593-1601.
    • De novo mutations in congenital heart disease with neurodevelopmental and other congenital anomalies. Science. 2015 Dec 4;350(6265):1262-6.
    • Feasibility and safety of cardiopulmonary exercise testing in children with pulmonary hypertension. Cardiol Young. 2016 Aug;26(6):1144-50.
    • Peak oxygen uptake, ventilatory efficiency and QRS-duration predict event free survival in patients late after surgical repair of tetralogy of Fallot. Int J Cardiol. 2015 Oct 1;196:158-64.
    • Cone reconstruction for Ebstein's anomaly: Patient outcomes, biventricular function, and cardiopulmonary exercise capacity. J Thorac Cardiovasc Surg. 2015 Apr;149(4):1144-50.
    • Does TCPC power loss really affect exercise capacity? Heart. 2015 Apr;101(7):575.
    • Computational modeling of pathophysiologic responses to exercise in Fontan patients. Ann Biomed Eng. 2015 Jun;43(6):1335-47.
    • Ventriculovascular interactions late after atrial and arterial repair of transposition of the great arteries. J Thorac Cardiovasc Surg. 2014 Dec;148(6):2627-33.
    • Asymptomatic adults with mild/moderate isolated native pulmonary valve stenosis are in need of treatment… but not the kind you are thinking of! Heart. 2014 Sep;100(17):1313-4.
    • Computational models of aortic coarctation in hypoplastic left heart syndrome: considerations on validation of a detailed 3D model. Int J Artif Organs. 2014 May;37(5):371-81.

 Diseases, Medical Tests and Treatments

  • Aortopathy
  • Arrhythmia
  • ASD (atrial septal defect)
  • Chest pain
  • Chest pain in children
  • Congenital heart disease
  • Echocardiogram
  • Fainting in children
  • Heart murmur
  • Heart murmur in children
  • Hypertrophic cardiomyopathy
  • Kawasaki disease
  • Marfan syndrome
  • Palpitations
  • Patent foramen ovale
  • Sports cardiology
  • Supraventricular tachycardia
  • Syncope
  • Tilt table

Make an appointment


  • Great Ormond Street Hospital
    Great Ormond Street Hospital, Great Ormond St WC1N 3JH - London (Central London)
    (+44) 02033148429
  • The Harley Street Clinic Children’s Hospital
    The Harley Street Clinic Children’s Hospital, 35 Weymouth St, Marylebone W1G 8BJ - London (Central London)
    (+44) 02033148429
  • The Portland Hospital
    205-209 Great Portland St W1W 5AH - London (Central London)
    (+44) 02033148429
  • Chase Lodge Hospital
    Page St, Mill Hill, London NW7 2ED NW7 2ED - London (North London)
    (+44) 02033148429
  • Bupa Cromwell Hospital
    164-178 Cromwell Rd, Kensington SW5 0TU - London (Central London)
    (+44) 02033148429


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  • Calming, reassuring and empathetic Dr Giardini sought to understand out journey and was able to provide us with the answers we needed.
  • Very professional, kind with the children, experienced in his field. I would definitely recommend him.