Medical specialists – Top Doctors UK
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Dr Oliver Segal is one of London’s leading cardiologists and electrophysiologists. Based in the NHS at Barts Heart Centre and UCLH, where he is arrhythmia lead, he sees patients privately at The Harley Street Clinic. He has over 20 years’ experience in the management of all arrhythmias, performing catheter ablation for atrial fibrillation and other rhythms, as well as implanting pacemakers, defibrillators and other cardiac devices. 
 
Dr Segal is an expert in electrophysiology, focusing on the analysis of irregular heart rhythms. He focuses on seeing patients with rapid palpitations and tachycardias, irregular heartbeats, ectopic or ‘skipped’ beats, pauses and slow heartbeats, dizzy spells and blackouts, including patients with breathlessness and tiredness due to atrial fibrillation (AF). He has performed >2,000 ablations (including the use of three-dimensional and non-contact mapping systems) and >1,500 device implantation procedures. He implants left atrial appendage occlusion (LAAO) devices (the Amulet devices) for patients with AF and high risk of stroke who cannot take anticoagulants or when anticoagulants have failed, leadless pacemakers and conduction system pacemakers. 
 
Dr Segal was awarded an MB BS degree from King's College London in 1995, and later obtained his Doctorate (MD) from the National Heart & Lung Institute, Imperial College London in 2008. Dr Segal's training took him to prestigious institutions, including St Mary’s, The Heart & and St George's Hospitals in London, where he honed his skills in electrophysiology, before earning a coveted fellowship in electrophysiology and devices, with the world-renowned Professor George Klein in Canada. 
 
Dr Segal's professional involvement extends beyond his practice, as he holds key positions within esteemed organisations. He is a member of the Royal College of Physicians and plays a pivotal role as a lead for electrophysiology and arrhythmias at University College London Hospitals. Furthermore, he contributes as a valued member of the European Heart Rhythm Association Exam Setting Committee, the British Heart Rhythm Society, and the Heart Rhythm Society in the USA.
 

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Dr Sachin Khambadkone is a leading senior consultant in paediatric and adolescent cardiology and specialises in echocardiography and interventional cardiology. He works in the NHS as chief of cardiology at Great Ormond Street Hospital for Children in London, and is an honorary associate professor at University College London. Dr Khambadkone is recognised as a world expert in his field and a key opinion leader in UK, Europe and US and is often sought to provide a second medical opinion to patients, families and other cardiologists from within UK, and internationally. He practices privately at The Portland Hospital and International and Private Patients, Great Ormond Street Hospital, London.

Dr Khambadkone has extensive training in general paediatrics, neonatology and paediatric cardiology. With his clinical experience of over 30 years, he is an expert in diagnosing and treating all aspects of cardiac problems including heart murmurs, chest pain, palpitations, syncope (fainting), heart failure, and management of simple and complex structural heart conditions. Dr Khambadkone also specialises in problems of adolescence including chest pain, screening for sporting activities, fainting, postural orthostatic hypotension syndrome (POTS) and assessing long term outcome after treatment of congenital heart disease.

Dr Khambadkone was part of the pioneering team that introduced pulmonary valve replacement procedure without open heart surgery. This was recognised as a landmark innovation in treatment of congenital heart disease that has now expanded the use of valve repair and valve replacement procedures in children and adults. He was one of the first Proctor or Trainer for implantation of the Melody valve, and he was instrumental in setting up training programmes in several paediatric cardiology centres in UK, Europe and Asia. In addition to interventional procedures such as balloon angioplasty, closures of holes in the heart, stent angioplasty, and valve implantations, he takes a keen interest in introducing novel techniques and devices in the field of congenital cardiology. Additionally, as a result of his overseas experience, he has expertise in managing acute rheumatic fever and rheumatic valvular heart diseases, considered a rare expertise in UK.

Dr Khambadkone has over 120 publications and book chapters in leading scientific journals and textbooks.

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Mr Raj Lakhani is an award-winning consultant ENT surgeon, based at the Harley Street Nose Clinic in London. He has a special interest in both rhinology and facial plastic surgery, as well as having a breadth of expert knowledge in general adult and paediatric ENT conditions. Mr Lakhani completed his undergraduate and postgraduate training at London teaching hospitals and has also gained further experience in both rhinoplasty and complex sinus surgery across Europe.

Mr Lakhani is currently an honorary senior lecturer at St George's Medical School, University of London and is equally committed to academia, with more than 30 peer-reviewed articles published and over 50 scientific presentations given worldwide. He has won numerous prizes throughout his career, including 'Best Short Paper' prize from the Royal Society of Medicine. He was also shortlisted in 2016 for the Royal Society of Medicine national 'Trainee of the Year' award. Most recently, to expand his skill-set, Mr Lakhani completed a Masters in evidence-based healthcare at UCL.

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Mr Jonathan Hyam is highly renowned consultant brain and comprehensive spinal neurosurgeon at the leading National Hospital for Neurology and Neurosurgery, Queen Square in London.

With over twenty years of experience, Mr Hyam specialises in managing and treating a wide of conditions, including spinal (back pain, sciatica, brachialgia, cervical stenosis), myelopathy/radiculopathy, peripheral nerve disorders (carpal tunnel syndrome, ulnar nerve compression), and cranial conditions such as trigeminal neuralgia, hydrocephalus, Parkinson’s, and dystonia. His interests include Gamma Knife stereotactic radiosurgery, deep brain stimulation, cranioplastic reconstruction, and disc prolapse, as well as expertise in utilising focused ultrasound for treating tremors.

With a PhD in neurosurgery from the University of Oxford and a diploma in microscopic neurosurgery from the University of Zurich's Yasargil Neurosurgery Laboratory, Mr Hyam also serves as a specialist advisor to NICE for the British Society for Stereotactic and Functional Neurosurgery. He has been elected as President of the Royal Society of Medicine Clinical Neurosciences Section for 2022/2023.

Mr Hyam’s expertise and contributions to the field of neurosurgery have earned him a well-deserved reputation as a top neurosurgeon. With an impressive knowledge and work experience, Mr Hyam has received numerous accolades for his work, including the Resident Prize for Stereotactic and Functional Neurosurgery from America’s Congress of Neurological Surgeons. His research interests focus on neurosurgery and have been published in prestigious journals such as The Lancet, Nature Reviews Neurology, and The Lancet Neurology.

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Professor Aung Ye Oo is an esteemed cardiothoracic surgeon with more than 15 years of consultant-grade experience. Practising at Barts Health NHS Trust, Professor Aung Ye Oo has a particular expertise in aortic, valvular and coronary surgery, and minimally-invasive surgical techniques. He is a national and international expert in the field of complex aortic surgery in treatment of aneurysm of arch, descending and Thorac-abdominal aorta.

Professor Aung Ye Oo originally obtained his medical degree in Myanmar, before moving to the UK to pursue specialist cardiothoracic training in London and Liverpool. He became a fellow of the Royal College of Surgeons in 1996 then earned a further fellowship in cardiothoracic surgery in 2002. For the following 14 years he was Consultant Cardiac Surgeon at Liverpool Heart and Chest Hospital, before becoming the Clinical Lead for Aortovascular Surgery at Barts Health in 2017. In addition to his day-to-day responsibilities, Professor Aung Ye Oo is committed to the dissemination of the latest surgical techniques and hosts the annual Aortovascular Symposium at St Bartholomew's Hospital, London. He is also a highly sought-after professor, with academic and teaching responsibilities at Barts Heart Centre, the University of Liverpool, and the University of Medicine in Yangon, Myanmar.

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Mr Hersh Deo is a leading consultant orthopaedic surgeon based in Great Yarmouth and Norwich. He specialises in knee and hip surgery, in particular, soft tissue injuries of the knee such as meniscal tears, ACL rupture and cartilage damage. His areas of expertise also include total and partial knee replacements and total hip replacements. Mr Deo is particularly interested in knee preservation procedures such as cartilage regeneration and high tibial osteotomy.

Mr Deo graduated from St George's Hospital Medical School at the University of London in 1996 with a bachelor degree in medicine and surgery. Having completed his basic surgical training, he completed a masters at Imperial College London with a thesis on cartilage regeneration and repair. He then completed higher surgical training in the Southeast Thames Deanery. Mr Deo additionally undertook specialist fellowships at Queen Elizabeth Hospital, Adelaide and Guys’ and St Thomas’ in lower limb arthroplasty. In 2012, Mr Deo was appointed consultant orthopaedic surgeon at James Paget University Hospital NHS Foundation Trust. Mr Deo was appointed as clinical lead of the trauma and orthopaedic department in 2018 and was further promoted to assistant medical director of the trust in 2019.

Mr Deo is a leading educator in trauma and orthopaedics and is an advanced trauma and life support instructor for the Royal College of Surgeons. He regularly presents on his areas of expertise, as well as training other health professionals, such as general practitioners and physiotherapists.

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Mr Alistair Slesser is an esteemed and highly qualified consultant colorectal and general surgeon who specialises in all types of hernia, colorectal cancer, haemorrhoids, anal fistulas, bowel cancer screening, and colonoscopy. He is currently practising at Bishops Wood Hospital and The Clementine Churchill Hospital. 

Mr Slesser, who is also at present an honorary senior lecturer at Imperial College London, completed an MBBS at the University of London in 2003. Following this, he would go on to obtain an MSc in surgical sciences from said university. In 2016, he notably officially became a Fellow of the Royal College of Surgeons. He is also an expert when it comes to gallbladder removal surgery, pilonidal sinus disease surgery, colonoscopy, and endoscopy. 

Mr Slesser undertook his higher surgical training in north-west London at both busy district general hospitals and tertiary centres of excellence. Impressively, he also previously spent time working as a surgical registrar in Brisbane, Australia. Mr Slesser has published over 30 peer-reviewed publications and is a medical school undergraduate firm lead for Imperial College, London. 

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Dr Pushpakaran Munuswamy is a leading consultant gastroenterologist with practice in Brentwood and Chelmsford who specialises in the diagnosis and treatment of gastrointestinal disorders using endoscopic procedures, for conditions including dyspepsia, bowel cancer, inflammatory bowel disease, irritable bowel syndrome disease and small intestinal bacterial overgrowth. An accredited bowel cancer screening practitioner, Dr Munuswamy is also an expert in colonoscopy procedures, having performed over 5,000 colonoscopies with an adenomatous polyp detection rate double the national target.

Included in his main areas of expertise are also gastroscopy examinations, having performed more than 5,000 gastroscopies, as well as therapeutic procedures for the treatment of gastrointestinal bleeding, percutaneous endoscopic gastrostomy, foreign body removal and variceal banding.

Dr Munuswamy originally qualified from Tamil Nadu Dr MGR Med University in India in 1997. He then relocated to the UK, where he undertook his gastroenterology and liver disease training in London at King’s College Hospital, on the South East rotation, acquiring in-depth expertise in complex, acute and chronic disorders of the digestive system. Dr Munuswamy later obtained a post graduate diploma in digital health leadership, NHS digital academy.

Dr Munuswamy is a fellow of the Royal College of Physicians, London. He is a member of British Society of Gastroenterology and the clinical lead for artificial intelligence in gastroenterology, BSG task group.

Beyond his clinical practice, Dr Munuswamy is passionate about innovation, and went on to develop a highly commended modern design of a naso-gastric tube for feeding. He also maintains an interest in research that improves the management of gastrointestinal disorders and thus, collaborates at present in several national trials, including the CONSTRUCT study for acute colitis management. He has presented in national scientific meetings, NHS digital meetings and has published in peer-reviewed journals.

Dr Munuswamy has held several management roles and as chief clinical information officer introduced several digital innovations including electronic observations, e-prescribing and electronic records. He was clinical director for gastroenterology and currently is a department lead for gastroenterology.

Awards for his work include the BSG highly commended prize for service innovation and a finalist in HSJ awards.

Patient safety is integral to Dr Munuswamy’s practice. With a gentle and comprehensive approach to care, Dr Munuswamy involves and works together with his patients in the decision-making process of their treatment. Alongside his NHS work at Basildon and Thurrock University Hospitals, Dr Munuswamy currently sees private patients at Nuffield Health Brentwood Hospital, Springfield Hospital and Spire Hartswood Hospital.

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Mr Zaid Awad is a consultant otolaryngologist in London. He completed his higher surgical training in otolaryngology in London, before taking up advanced otolaryngology and head and neck surgery in Adelaide, Australia. He further honed his skills in otolaryngology and head and neck surgery visiting a number of prestigious international institutions. A leader in his field, he has the expertise to treat and and manage all kinds of adult and child ear, nose and throat (ENT) conditions, taking a particular clinical interest in the treatment of head and neck cancer and how it impacts daily life.

His wealth of knowledge and experience earned him many leading positions in ENT committees in the UK and abroad. Utilising the latest techniques and technology, Mr Awad is prolific in revolutionary robotic and laser surgery. He always aims to provide his patients with the best care possible, tailored to each specific case. He publishes extensively in renowned peer-reviewed ENT journals, and has received 22 awards for his outstanding work in medicine.

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Dr Charis Kyriakides is a highly regarded consultant general/upper GI surgeon based in London who specialises in gallbladder surgery (cholecystectomy), abdominal pain, and open and laparoscopic hernia surgery. As a JAG accredited upper GI endoscopist, Dr Kyriakides is also highly proficient in diagnostic procedures such as gastroscopy.

Dr Kyriakides, who consults privately at HCA UK at The Shard and at HCA UK City of London, qualified from Semmelweis University School of Medicine in 1997 with distinction. He received undergraduate training at the renowned Pitié-Salpêtrière University Hospital in France and completed his primary surgical training at the Evaggelismos General Hospital in Greece. He is a fellow of the Royal College of Surgeons of England since 2019.

His comprehensive training, which underscores his high standards of surgical practice and personalised patient care, also includes post graduate fellowships at Hammersmith Hospital and at the Royal London Hospital, where Dr Kyriakides acquired proficiency in benign and malignant hepatobiliary and pancreatic diseases.

Additionally, Dr Kyriakides also serves as an NHS consultant since 2015 and is currently appointed at Croydon University Hospital since 2019. He has published in high-impact, peer-reviewed scientific journals and has presented at national and international meetings. Further to his main areas of expertise, Dr Kyriakides also possesses a specialist interest in appendicectomy, lipoma removal, and splenectomy.  

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