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Cardiothoracic Surgery Unit

The Department of Cardiothoracic Surgery at Mediclinic City Hospital offers a full range of adult and paediatric cardiac and thoracic surgery with emphasis placed on the evaluation and management of patients with ischemic heart disease, valvular disorders, congenital heart defects, aortic aneurysms and other thoracic and mediastinal pathologies including thoracic oncology. 

The state of the art equipment in our custom-built heart centre, combined with an expert team of cardiothoracic surgeons and cardiologists makes us one of the most respected units of its kind in the region. The professionalism and experience of the support staff including cardiac anaesthetists, intensivists, nurses, technicians and the rehabilitation team is equally impressive.

Heart disease is common in the Gulf, the result of a sedentary lifestyle, poor diet, high incidence of smoking and diabetes and hot weather. The average age for patients presenting with coronary artery disease in the West is 65-70 whereas in this region it is around 45-50. Within this environment, it is crucial to provide education to help reduce the incidence of heart disease, whilst also offering international standards of healthcare to cardiothoracic patients who require it.  Our “Heart Team” is here to help.

Cardiothoracic surgery applies the latest scientific research and surgical techniques, whilst maintaining a highly diligent and meticulous approach to diagnosis and treatment. We insist that each patient receives highly personalised attention from their surgeon, and that the referring physicians stay involved, from the initial consultation right through to the patient's discharge and eventual follow-up visits.

Our team regularly updates its knowledge and skills by attending international and local conferences and workshops.

Mediclinic City Hospital has set a benchmark in cardiac care in the Gulf region and our results are comparable with the best centres in the world. Where once patients were inclined to travel abroad for heart surgery, increasingly they find the expertise required right here on their doorstep.

Our services include:

  • Coronary artery bypass grafting including total arterial revascularisation, beating heart surgery and endoscopic vessel harvesting
  • Heart valve repairs and replacement
  • Repair of congenital heart defects in children and adults 
  • Complex aortic aneurysms requiring replacement of the ascending aorta and aortic valve and re-implantation of the coronary arteries
  • Surgery for cardiac tumours
  • Surgery for disease of the pericardium - pericardiectomy, drainage, pericardial window, excision of pericardial cysts and tumours
  • Lung surgery – Video-Assisted Thoracoscopic surgery (VATS), bronchoscopy, lobectomy, pneumonectomy, tumours, lung abscess, and lung biopsy
  • Surgery for pleural disease - decortication, biopsy
  • Surgery for mediastinal disease - mediastinoscopy, excision of mediastinal tumours, thymectomy, retrosternal goitre
  • Minimally-invasive sympathectomy
  • Chest wall reconstruction surgery


Our team of Specialists:


Dr. Sam Haydar, Consultant Cardiothoracic Surgeon

Dr. Haydar joined Mediclinic City Hospital from the USA with over 20 years of experience in adult and paediatric cardiothoracic surgery.

He is board certified in Thoracic and Cardio-Vascular surgery, and his main area of expertise is in congenital heart defects, valve repair and replacement including TAVI and PPVI, coronary artery revascularisation, aortic root surgery and minimally invasive lung and mediastinal surgery.  He also has a degree in Paediatric Cardiology and a long experience in managing complex congenital heart defects including Transposition of Great Arteries, Hypoplastic Aortic Arch, Single Ventricle and valve atresia.

Dr. Haydar is a member of the American Society for Thoracic Surgeons (STS), European Association for Cardio-Thoracic Surgery (EACTS), and French Society of Thoracic and Cardio-Vascular Surgery (SFCTCV).


Dr. Zubin Nalladaru, Consultant Cardiothoracic Surgeon 

Dr. Nalladaru has worked with Mediclinic Middle East since 2002 when he started at Mediclinic Welcare Hospital to help set up the cardiothoracic department there.  He was part of the team which performed the first open heart surgery in a private hospital in the UAE.  He is an expert in a wide variety of procedures including coronary artery bypass grafts, surgery for valvular heart diseases, surgery for diseases of the aorta and various lung diseases.


Dr. Obaid Aljassim, Consultant Cardiothoracic Surgeon 

Dr. Aljassim as well as working at Mediclinic City Hospital, is also head of the Cardiothoracic Surgery Department at Dubai Health Authority.  He qualified as a doctor and did his specialist training in Sweden before moving to Dubai in 2005 to further his career.  He is also a Fellow of the Royal College of Surgeons, UK.

His main areas of interest include adult cardiothoracic surgery, on-pump and off-pump coronary artery revascularization, aortic and mitral valve surgery, general thoracic surgery, paediatric and congenital cardiac surgery.

Dr. Talib Majwal, Consultant Interventional Cardiologist

Dr. Majwal is a consultant interventional cardiologist. After graduating from Baghdad University in 1983, he underwent further training in hospitals in Baghdad, Iraq before undertaking a postgraduate course in clinical adult cardiology at Whittington Hospital, London, UK. He also worked as an interventional cardiologist at University Hospital, Edmonton, Canada and a consultant interventional cardiologist at King Abdullah Teaching Hospital, Jordan. He came to Dubai in 2004 and worked at Dubai Hospital as Director of Interventional Cardiology until 2016.
He is a Fellow of the Royal College of Physicians (Ireland), a Fellow of the American College of Cardiology and a Fellow of the Royal College of Physicians (Glasgow).
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