After completing his postgraduate training (MS –Master of surgery) in Obstetrics and Gynaecology from Sri Lanka, Vat moved to United Kingdom in 2004 to pursue his advanced training. He continued his training in Yorkshire and London. He completed his Specialty training in London Deanery and awarded Certificate of Completion of Training (CCT) in 2011. During the last 3 years of training he underwent advanced skills training in Laparoscopic surgery, emergency gynaecology and early pregnancy at Queen Charlotte’s Hospital, Imperial College Health care, London, Chelsea and Westminster Hospital, London and Northwick Park Hospital. He continued his advanced training in minimal access surgery and endometriosis as a post CCT fellow at The Chelsea and Westminster Hospital and its Endometriosis centre, London. He also completed his advanced training in ultrasound scanning (Gynaecology and Early pregnancy) at Queen Charlotte Hospital, London and King’s College London. During this time, he also completed Post Graduate diploma in Medical Ultrasound (Gynaecology and Early Pregnancy) with Merit from King’s College London. He was appointed as Consultant Obstetrician and Gynaecologist at Wexham Park and Heatherwood Hospitals (currently Frimley Health NHS) in 2012 where he is the Lead for Early pregnancy services and the site lead for Southampton undergraduate O&G students. He is also the Gynaecology and Laparoscopy simulation training lead for Health Education England, Thames Valley.

He has more than 26 years’ experience as a doctor and more than 21 years of experience in Obstetrics and Gynaecology. Having had work experience in both developing and developed countries and undergone advanced training in some of the best centres in the world, Mr Vathanan has earned excellent experience in managing complex cases with minimal intervention and best outcomes. He has extensive experience in all benign Gynaecology conditions including menstrual disorders, endometriosis, chronic pelvic pain, fibroid, ovarian cysts and utero vaginal prolapse. He chairs the fibroid multidisciplinary team meeting at his NHS hospital. He has particular interest in minimal access surgery, endometriosis, reproductive surgery and early pregnancy issues affecting women including miscarriage, recurrent miscarriage, ectopic pregnancy and a range of other conditions and early pregnancy check-ups. Through his advanced training, he aims to perform most of the surgeries via key hole (including hysterectomy, ovarian cyst removal, fibroid removal, ectopic pregnancy, endometriosis and other conditions) providing the advanced surgical technique and best surgical outcome for his patients with minimal abdominal (tummy) scar, usually 3 small scars of 5mm each. He performs major operations such as hysterectomy through 3 small tummy scars (usually three 5mm scars) to provide best cosmetic and surgical outcome for his patients.



Vat firmly believes and practices in evidence based medicine. He has contributed and still actively involves in research. His research interests include early pregnancy, minimal access surgery and ultrasound scanning. He was awarded Post Graduate Diploma in Health Research with Merit from The University of Leeds and contributed research articles in journals and chapter in electronic training modules. He authored 9 research articles in scientific journals, more than 20 national and international presentations, more than 20 abstract publications and 1 chapter in RCOG electronic training module. He also peer reviewed 2 researches and 1 review article. He still actively involves in research and publishes articles in scientific journals.

Research Publications:

  • Evaluating cut-off levels for progesterone, β human chorionic gonadotropin and β human chorionic gonadotropin ratio to exclude pregnancy viability in women with a pregnancy of unknown location: A prospective multicenter cohort study. Acta Obstet Gynecol Scand. 2022;101:46–55. doi:10.1111/aogs.14295


He takes responsibility for Gynaecology and Laparoscopic simulation training for Health Education, Thames Valley Obstetrics and Gynaecology trainees as being the Gynaecology and Laparoscopy simulation lead for Health Education England, Thames Valley. He is also an educational and clinical supervisor for specialty trainees of Oxford deanery. He is an accredited training preceptor of Royal College of Obstetricians and Gynaecologists (RCOG) for advanced training in emergency Gynaecology and early pregnancy. He is the undergraduate tutor and site lead for Southampton University O&G medical students at Wexham Park Hospital.

Personal note:

He is married with 2 children. Along with English he can converse fluently in Tamil and Sinhala. In spite of his busy schedule he finds time to spend with his family and kids, travelling and walking. He is keen in charity work and currently involved in helping orphans affected by the ethnic conflict in Sri Lanka.