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Dr Alessandro GiardiniPaediatric cardiology in Central London
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Dr Alessandro Giardini

Paediatric cardiology in Central London

Top Doctors Awards: 2021
MD PhD
GMC: 6165846

5.085reviewsReview

Expert in:
Chest pain
Heart murmur
Palpitations
Syncope
Echocardiogram
Congenital heart disease
Fainting in children
Arrhythmia
  • Information
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Professional statement

Dr Alessandro Giardini is an award-winning and leading cardiologist based at the world-renowned Great Ormond Street Hospital (GOSH) in London, specialising in paediatric cardiology. An expert on congenital heart disease, Dr Giardini is the lead 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. He also privately practices at The Harley Street Clinic Children's Hospital, The Portland Hospital and Chase Lodge Hospital, alongside Bupa Cromwell Hospital.


Dr Giardini's experience in congenital heart disease extends to the diagnosis and management of a wide range of defects in babies, children and adolescents. His GOSH unit has pioneered techniques including transcatheter pulmonary valve replacement and Dr Giardini's involvement in paediatric cardiac research means his patients are treated according to the latest and most successful techniques.


Dr Giardini, who is a Top Doctors 2021 award winner, also leads specialist clinics for children with paediatric hypertrophic cardiomyopathy. He's highly regarded for expertise in providing guidance for children and adolescents with documented cardiac disease and those with symptoms during exercise, such as palpitations, chest pains or fainting/syncope.  


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.    ​


Dr Giardini has a medical degree and a PhD (in the pathology of heart failure in patients with congenital heart defects) from the University of Bologna's (Italy) School of Medicine. 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. 

Clinics

Great Ormond Street Hospital
  • Great Ormond Street Hospital profile image

    Great Ormond Street Hospital

    Central London, Great Ormond Street. WC1N 3JH,

    Medical insurances accepted

    I'm paying for myself
    Bupa
    AXA
    AVIVA
    Cigna
    WPA
    Simply Health
    Allianz

Credentials

Professional experience

  • 27 years of experience
  • Consultant paediatric cardiologist, Great Ormond Steet Hospital (2007 - present)
  • Consultant paediatric cardiologist,  Harley Street Clinic (present)
  • Consultant paediatric cardiologist, The Portland Hospital (present)
  • Director of Cardiology Inpatient Services, Great Ormond Street Hospital
  • Consultant paediatric cardiologist, The Cromwell Hospital (present)
  • Consultant paediatric cardiologist, University of Bologna (2004 - 2007)
View more

Subspecialties

  • Chest pain 
  • Heart murmur 
  • Palpitations
  • Syncope
  • Echocardiogram
  • Paediatric cardiology
  • Postural Tachycardia Syndrome (POTS)
View more

Education

  • PhD, Paediatric cardiology,  Università di Bologna (2007)
  • CCST, Cardiology (Paediatric Cardiology), Università di Bologna (1999 – 2004)
  • MD, Universita degli Studi di Bologna (1992 - 1999)
  • Associated Professor of Cardiology, Italian Ministry of Education, University and Research (MIUR) (2014)
View more

Teaching posts

  • Educational and Clinical Supervisor in Paediatric Cardiology, Great Ormond Street Hospital

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.
View more

Prizes and awards

  • Winner, Top Doctors Awards 2021 (2021)

Languages spoken

  • English
  • Italian
Registration number: 6165846

Reviews

All reviews are from real patients and have been verified by our Customer Service department to ensure they meet our guidelines. Rules of the service

85 reviews

5.0

Review this doctor
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  • 28 November 2025

    C.P.

    Verified patient
  • 28 November 2025

    A.P.

    Verified patient
  • I’m lost for words of how incredible Dr Alessandro Giardini and his team are. My daughter was diagnosed with a Large ASD and Alessandro went above and beyond to help us and make sure that our daughter got the best care she needed.
    27 September 2025

    J.N.

    Verified patient
  • The doctor was very understanding and professional, he answered all our questions and advised us on the next steps.
    18 September 2025

    G.N.

    Verified patient
  • 11 March 2025

    A.H.

    Verified patient
  • Very professional, and made my son comfortable. Obviously has a lot of experience in his field. Very observant. I would definitely recommend and would happily see him again if needed.
    3 January 2025

    F.C.

    Verified patient
  • Very efficient process. Kind and thorough assessment.
    7 July 2024

    G.B.

    Verified patient
  • Excellent service, made my little boy feel comfortable.
    23 June 2024

    M.T.

    Verified patient
  • Although we were a little late being seen, in the context of a busy hospital this was absolutely no problem at all.
    18 March 2024

    R.R.

    Verified patient
  • Put my daughter at ease. Wonderful manner.
    23 February 2024

    J.E.

    Verified patient
View all reviews

Treatments

The doctor is expert in

Arrhythmia

Chest pain

Congenital heart disease

Echocardiogram

Fainting in children

Heart murmur

Palpitations

Syncope

The doctor also specialises in:

Aortopathy

Atrial septal defect

Chest pain in children

Heart murmur in children

Hypertrophic cardiomyopathy

Kawasaki disease

Marfan syndrome

Patent foramen ovale

Sports cardiology

Supraventricular tachycardia

Frequently Asked Questions

What is Dr Alessandro Giardini's specialty?

Dr Alessandro Giardini is a consultant specialising in Paediatric cardiology, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Dr Alessandro Giardini specialise in?

Dr Alessandro Giardini is a paediatric cardiologist who provides assessment and treatment for Chest pain, Heart murmur, Palpitations, Syncope, Echocardiogram, Congenital heart disease, Fainting in children and Arrhythmia. During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Dr Alessandro Giardini have?

Dr Alessandro Giardini has 27 years of professional experience as a consultant paediatric cardiologist, providing specialist assessment and treatment in this medical field.

What do patients say about Dr Alessandro Giardini?

Patients give a rating of 5.0 out of 5 to Dr Alessandro Giardini, a score considered excellent. This average is based on 85 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Dr Alessandro Giardini's reviews verified?

Yes. All Dr Alessandro Giardini's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Dr Alessandro Giardini practise?

Dr Alessandro Giardini practices in the following locations:

  • Central London at Great Ormond Street. WC1N 3JH
  • Central London at The Harley Street Clinic Children’s Hospital, 35 Weymouth St, Marylebone
  • Central London at 205-209 Great Portland St
  • Central London at Page St, London NW7 2ED, UK
  • Central London at 164-178 Cromwell Rd, Kensington

In-person consultations are available at these locations as a Paediatric cardiology.

How can I book an appointment with Dr Alessandro Giardini?

You can book an appointment with Dr Alessandro Giardini directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Dr Alessandro Giardini see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Dr Alessandro Giardini through this platform are private, either self-pay or covered by private medical insurance.

Does Dr Alessandro Giardini offer private appointments?

Yes, Dr Alessandro Giardini offers private appointments for patients seeking flexible and direct access to a consultant paediatric cardiologist.

Does Dr Alessandro Giardini offer online consultations?

Yes, Dr Alessandro Giardini offers online consultations. You can book an appointment directly from this page by selecting the date and time that suit you best. Personalised assistance is also available by calling the number displayed on this page.

Does Dr Alessandro Giardini accept insurance?

Dr Alessandro Giardini works with the following private medical insurance providers: Bupa, AXA, AVIVA, Cigna, WPA, Simply Health, Allianz, CS Healthcare, Vitality, The Exeter Friendly, Pru Health, Groupama, April, Freedom, National Assurance, General Medical, Saga, Healix, Legal & General Insurance and Health-online. If your insurer is not listed, you may contact the practice directly to confirm your coverage.

What is Dr Alessandro Giardini's availability?

Dr Alessandro Giardini's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Dr Alessandro Giardini offer?

You can pay for your consultation with Dr Alessandro Giardini using the following methods: Self-paying or Prepaid.

What languages does Dr Alessandro Giardini speak?

Dr Alessandro Giardini is a paediatric cardiologist who offers consultations in English and Italian.

How is Dr Alessandro Giardini selected to appear on this platform?

All doctors listed on Top Doctors, including Dr Alessandro Giardini, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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Great Ormond Street HospitalCentral London, Great Ormond Street. WC1N 3JH,
Payment methodSelf-paying

Important: For appointments at the Cromwell, please call the clinic. Appointments at Chase Lodge Hospital are available Sundays 10.00-12.00.

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