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  • Dr Alessandro Giardini

Dr Alessandro Giardini

Paediatric cardiology in Central London and North London

Top Doctors Awards: 2021
MD PhD
GMC: 6165846
5.089 reviewsReview
e-ConsultationBook
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

    Great Ormond Street. WC1N 3JH, Central London

    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

Content

Photos

    • Image gallery
    • Image gallery
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Health content

What happens when you go to Dr. G's office?

Video

What happens when you go to Dr. G's office?

Many parents are unsure of what happens during a paediatric cardiology assessment and are ...

Heart conditions in children: what you should know

Article

Heart conditions in children: what you should know

In our latest article, we find out what the most common heart conditions are in children f...

Dr Alessandro Giardini

Video

Dr Alessandro Giardini

A patient testimonial for Dr Giardini.

Congenital heart disease (for parents): what is the outlook?

Article

Congenital heart disease (for parents): what is the outlook?

As a parent, it can be very scary to find out that your baby has a congenital heart defect...

Dr Alessandro Giardini

Video

Dr Alessandro Giardini

A patient testimonial for Dr Giardini

How cardiovascular screening of young athletes can save lives

Article

How cardiovascular screening of young athletes can save lives

Every week, 12 children or young adults die suddenly in the UK while they are exercising o...

What are the signs of heart problems in young children?

Video

What are the signs of heart problems in young children?

<p>Dr Alessandro Giardini is a paediatric cardiologist based at Great Ormond Street Hospit...

Pectus excavatum: how might it affect the heart?

Article

Pectus excavatum: how might it affect the heart?

Pectus excavatum is a condition where the breastbone is sunken inwards instead of being le...

What is the best way to treat PoTS?

Video

What is the best way to treat PoTS?

<p>For people with POTS, the end goal to ensure they have a good quality of life and to be...

Should my child have an echocardiogram?

Article

Should my child have an echocardiogram?

Echocardiograms are often used to check that the heart and its valves are working. We spok...

What is PoTS and what does an attack feel like?

Video

What is PoTS and what does an attack feel like?

<p>PoTS (postural tachycardia syndrome) is an abnormal increase in heart rate that happens...

Congenital heart disease (CHD): Can my child have a normal life?

Article

Congenital heart disease (CHD): Can my child have a normal life?

Parents and relatives of a child with congenital heart disease (CHD) frequently ask how th...

How cardiovascular screening of young athletes can save lives

Video

How cardiovascular screening of young athletes can save lives

<p>Every week in the UK, 12 children or young adults with heart abnormalities die suddenly...

My child is having heart palpitations: should I be worried?

Article

My child is having heart palpitations: should I be worried?

Just as in some adults, children can have heart palpitations too, where the heart feels li...

What are some treatment options for congenital heart disease?

Video

What are some treatment options for congenital heart disease?

Congenital heart disease does require treatment, which may consist of either medication, b...

My child has chest pain! Should I be worried about their heart?

Article

My child has chest pain! Should I be worried about their heart?

The chest is packed with many vital structures and therefore it is not surprising that che...

Can congenital heart disease be cured?

Video

Can congenital heart disease be cured?

Dr Alessandro Giardini, a leading paediatric cardiologist, explains how congenital heart d...

What causes congenital heart disease?

Video

What causes congenital heart disease?

Congenital heart disease is a large group of defects in the way the heart of the baby deve...

Chest deformation – effects of chest deformation on the heart

Video

Chest deformation – effects of chest deformation on the heart

Pectus excavatum is an anomaly of the anterior chest wall where the front chest bone, whic...

Other information

http://www.childheartspecialist.com/
https://alessandrogiardini.co.uk/
https://pubmed.ncbi.nlm.nih.gov/?term=Alessandro+Giardini
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Profile on Linkedin
Profile on Youtube

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

89 reviews

5.0

Review this doctor
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  • Dr Giardini immediately put my child and myself at ease, he was approachable, empathetic and professional. We left completely satisfied and would not hesitate to recommend him to others in the future or see him again if the need arises.
    23 September 2026

    L.P.

    Verified patient
  • 12 September 2026

    M.E.

    Verified patient
  • Dr Giardini was wonderful with my son and put him at ease immediately
    18 May 2026

    A.B.

    Verified patient
  • 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
  • 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

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 specialist 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 specialist in Paediatric cardiology, 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 89 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
  • North London at Page St, Mill Hill
  • 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 specialist in Paediatric cardiology.

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 HospitalGreat Ormond Street. WC1N 3JH, Central London
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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