He underwent advanced training in vaginal surgery and benign diseases at Cambridge University Hospitals which enabled him to gain expertise in reconstructive vaginal surgery. Additionally, he completed colposcopy training and was accredited as a colposcopist by the British Society for Colposcopy and Cervical Pathology. In 2015 he obtained his Doctorate of Medicine MD(Res) degree in gynaecological ultrasonography from Imperial College London.

Mr Sayasneh completed his subspeciality training in gynaecological oncological surgery from Hammersmith Hospital, London, part of Imperial College NHS Healthcare Trust, in 2015. Here, he gained extensive experience in managing gynaecological cancers, including ovarian, endometrial and cervical cancer. He is highly skilled in performing complex surgical procedures such as laparoscopic (keyhole) surgery, hysterectomy, vulvectomy, and reconstructive vaginal and vulval surgery. He also managed early pregnancy complications and is competent in surgically managing ectopic pregnancies.

Since 2015, Mr Sayasneh has practised as a Consultant Gynaecology and Gynaecological Oncology Surgeon at Guys and St Thomas’ NHS Foundation Trust, one of the largest hospital trusts in the country with a global reputation for clinical excellence. Here he has introduced new surgical procedures, including ultra-radical peritonectomy techniques for advanced ovarian cancer and advanced laparoscopic radical surgeries for cervical cancer. He runs a rapid access clinic for ovarian masses, which diagnoses and triages patients into the optimal treatment pathways, effectively reducing the waiting lists for diagnosis.

Mr Sayasneh has been actively involved in medical research throughout his career and has over 300 publication citations since 2009. His specialist interest lies in the screening, diagnosis, and management of ovarian cancer, and he has published numerous peer-reviewed studies in this field. His work as the main coordinator of an international study into the characterization and long-term behavior of ovarian masses has informed national guidelines in many countries, including the UK. Mr Sayasneh has chaired numerous events and sessions on the characterization of ovarian masses, both in the UK and abroad as well as chairing conference sessions in gynaecological oncology more widely.

He is a regular peer reviewer for scientific journals such as the Journal of Assisted Reproduction and Genetics and the Journal of Obstetrics and Gynaecology. He has also published chapters in books such as Essentials in Gynaecological Ultrasonography and Applied Surgical Grey’s Anatomy Atlas. Currently, he continues his research into ovarian cancer using ultrasound.

Mr Sayasneh has always been passionate about teaching and training and was appointed Honorary Clinical Senior Lecturer within Imperial College London’s School of Medicine. Here, he has regular teaching sessions for undergraduate and postgraduate medical students. In 2018, he became the Undergraduate Lead for Women’s Health at King’s College London’s (KCL) School of Medical Education, where he oversees the delivery of the gynaecology curriculum across all 13 KCL hospital sites. He is also an Honorary Clinical Senior Lecturer within KCL’s Faculty of Life Sciences and Medicine. He was appointed as a faculty member of the British Society of Gynaecological Endoscopy.

As well as his NHS practice at Guys and St Thomas’ NHS Foundation Trust, Mr Sayasneh sees patients privately at London Bridge Hospital and The Harley Street Clinic, and operates at The Princess Grace Hospital, all part of the HCA UK network of private hospitals.