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Dr Oon Zhihao

  • Consultant, Department of Anaesthesia, National University Hospital
  • ​Clinical Senior Lecturer (NUS Yong Loo Yin School of Medicine)
Anaesthesiology (Anaesthesia)
Obstetric Anaesthesia, Pain Management, Regional Anaesthesia
Special Interests:
​Pain management


Dr Oon attained a BSc (Hons) in Oral Biology from Queen Mary University of London in 2006 and graduated with a MBBS from Barts & The London, UK in 2007.

He was admitted as a Fellow of the Royal College of the Anaesthetists (FRCA) in 2013 and completed Anaesthetic and Pain Medicine training in London, UK in 2018.

He is a Fellow of the Faculty of Pain Medicine of The Royal College of Anaesthetists (FFPMRCA) and completed a fellowship in Neuromodulation and Interventional Pain Medicine at Guy’s and St Thomas’ NHS Foundation Trust, UK in 2020.

He has worked with the international NGO Medicins Sans Frontieres (Doctors Without Borders) as an anaesthetist in Yemen, Syria and the Occupied Palestinian Territories.

He is experienced in spinal cord stimulation, radiofrequency ablation and pulsed radiofrequency and other interventional pain management techniques.

Journals & Publications

  1. ​Z Oon & C Ha. A novel approach to spinal anaesthesia to avoid aerosol-generating procedures in a patient with COVID-19 presenting for laser prostate surgery. Anaesthesia Reports. 2020. Jul- Dec; 8(2): e12065. doi:10.1002/anr3.12065
  2. Z Oon, C Ha & M Sicinski. Nebulized lidocaine in the treatment of refractory postoperative laryngospam: A case report. Anesthesia & Analgesia Practice. 2019. Jul 1; 13(1): pp 20 – 22. doi: 10.1213/XAA.0000000000000974
  3. Z Oon & A Woo. Should thoracic epidurals be routinely sited in patients having cardiac surgery? British Journal of Hospital Medicine. 2017. Dec 2; 78(12): pp. 730. doi:10.12968/hmed.2017.78.12.730 


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