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Dr P Boon Lim is a cardiologist and electrophysiologist specialising in heart rhythm disturbances, pacing and syncope at Imperial College London. He performs ablation for atrial and ventricular arrhythmias, and implantation of pacemakers and defibrillators. Dr Lim has a special interest in mapping and ablation of atrial fibrillation (AF), and is currently actively researching best techniques for modulating the autonomic nervous system to treat atrial fibrillation and vasovagal syncope. He also works closely with industry to develop the best techniques for treatment of atrial fibrillation and ventricular ectopy, and is highly skilled at using modern 3-D mapping technologies to treat these common arrhythmias. Dr Lim also leads the Imperial Syncope Diagnostic Centre, a unit that performs approximately 700 tilt table tests per year, and is actively engaged in researching mechanisms of syncope and understanding best treatment strategies for patients with debilitating syncope or symptoms of postural orthostatic tachycardia syndrome (POTS). He runs a syncope clinic based in London at Hammersmith Hospital, providing expert care care and attention to patients who have difficult-to-treat blackouts or faints. Dr Lim participates actively in ongoing research trials focussing on developing the best management strategies for treatment of vasovagal syncope in is the principle investigator for several syncope trials. He is consistently rated highly by patients and colleagues as one of the top syncope doctors and cardiologists in London. Dr Lim was award the prestigious Top Doctor 2017 in Cardiology UK as voted by other doctors.

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Review

 

Dr Boon Lim is to be commended for his kind and empathetic approach to patients.. Not only a gifted cardiologist but with an ability to explain complex medical matters in ways that are easily understood. He offers practical advice and treatment plans that in my experience are both reassuring and beneficial.

11th April 2026 | Written by patient at London Cardiovascular Clinic – 66 Harley Street


I had a consolation with Dr Boon Lim having suffered with ectopic heartbeats for some time now. Dr Boon Lim was exceptionally knowledgable, friendly, and a great listener. He was incredibly generous with his time, and articulated in a very accessible fashion what I was experiencing, why, and what I could do to alleviate the symptoms. I cannot recommend Dr Boon Lim more highly! I have also found his online content to be very informative and helpful.

16th March 2024 | Written by patient at Welbeck


Dr Boon Lim understood my AF condition quickly and recommended immediate treatment without any hesitation. The surgery has given me a new lease of life and I can't thank Dr Boon Lim enough. I would highly recommend his services.

8th July 2023 | Written by patient at Hammersmith Hospital


I have seen Dr Boon Lim a number of times since 2019 regarding my heart health, syncope and AF. He has always explained things in a clear manner and taken the time to listen. He has a holistic approach and has advised on how to make effective and achievable lifestyle changes. I have also found his book 'Keeping Your Heart Healthy' an easy and informative read. I would have no hesitation in recommending his care and expertise.

31st May 2023 | Written by patient at Hammersmith Hospital


Dr Lim reassured my 21 year old son with his calm, patient and professional manner. He explained in detail the treatment plan and procedures that he put in place. He and his team made whole process smooth at an anxious time. After a successful procedure my son can resume his competitive sporting activities. We can’t thank him enough.

5th May 2021 | Written by patient at Hammersmith Hospital


He is both excellent at listening and explaining. his manner is assured but warm. I never sensed that my consultations had been in any way hurried

30th March 2021 | Written by patient at West Middlesex University Hospital


I saw Dr Boon Lim at the end of 2020 on the recommendation of another cardiologist, as I needed a pacemaker and my first cardiologist suggested that Dr Boon Lim was the absolute best in class. I can honestly say I felt looked after and listened to every step of the way during my treatment. I was also incredibly impressed at Dr Boon Lim’s holistic approach to my healthcare, which has resulted in me making some fundamental changes to my lifestyle and having further conversations with an endocrinologist. I would have no hesitation in recommending Dr Boon Lim for any cardiology issues.

27th February 2021 | Written by patient at Hammersmith Hospital


I’m a 69 year old man. I have had Atrial Flutter for a few years and it has increasingly been affecting me, and how I felt with exercise. Some shortness of breath and anxiousness associated with the arrhythmia. I was lucky enough to have Dr Lim and his team give me an ablation. Professional painless and wow, I now feel great. Dr Lim really knows what he is doing. Thanks to all

14th August 2020 | Written by patient at Hammersmith Hospital


He is very skilled in what he does and explains everything very clearly .

14th August 2020 | Written by patient at Cromwell Hospital


I have suffered with what was termed as anxiety and a fast heart rate for years. I have seen countless cardiologists before Dr Boon Lim but no one really got to the bottom of it. Dr Boon Lim quickly ascertained that I was likely suffering with a fast heart and anxiety because of blood pooling in my legs and the resulting activation of my nervous system. He explained everything very carefully to me and gave me specific advice to help mitigate the effects. Dr Boon Lim is a very caring and supportive Dr and since receiving his reassurance and putting into practice his advice, I have felt so much better. Dr Lim is extremely knowledgeable and uses very up to date testing methods, such as the zip patch 14 day heart monitor. This allowed Dr Lim to confirm that I did not have any other heart rhythm disturbance. I really can not recommend him highly enough and my experience has been life changing.

3rd August 2020 | Written by patient at Hammersmith Hospital


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