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Dr Benjamin Leong Sieu-Hon

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  • Senior Consultant, Emergency Medicine Department, National University Hospital
  • Senior Consultant, Emergency Medicine Department, Alexandra Hospital
  • Assistant Professor, Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore


MBBS (Singapore), MMed (Emergency Medicine), MRCSEd (A&E), FAMS


Emergency Medicine

Clinical Disciplines/Programmes:

Chronic Programme (Live Better), FAST Programme (Get Better)

Special Interests:

Resuscitation, Emergency Medical Services


Dr Benjamin Leong is a Senior Consultant at the Emergency Medicine Department of National University Hospital and the Urgent Care Centre of Alexandra Hospital. He graduated from National University of Singapore in 1995 and obtained his specialist registration in Emergency Medicine in 2005. He completed a Research Fellowship at the Virginia Commonwealth University Reanimation Shock Center (VCURES) in 2009. He currently serves as chair of the emergency department's Incredible Care workgroup as well as the Mortality Audit Coordinator. He also serves as a Deputy Director of the Unit for Prehospital Emergency Care (UPEC) reporting to the Hospital Services Division of MOH, and also as a member of the Medical Advisory Committee to the Singapore Civil Defence Force. He is also active in medical education at the NUS Yong Loo Lin School of Medicine, and chairs a systems based workgroup in the medical school. His awards include the NUHS-Mochtar Riady Pinnacle Team Award in 2018, SMJ best research paper award in 2017, Home Team Innovation Awards 2017 (Silver), Home Team Process/Innovation of the Year 2014 (Platinum).

Dr Leong's special interests include Cardiac Arrest, Resuscitation, Emergency Medical Services and Shock, and has spoken at various local and international conferences and seminars on these topics. He is currently working with various research teams that include artificial intelligence in dispatch centres, community first responders to cardiac arrests, resuscitation by EMS, as well as post-cardiac arrest care and prognostication.

Emergency Medicine is at the centre of various crossroads between life and death, prehospital and inhospital, community and healthcare. Dr Leong is most passionate about delivering care that makes a difference to the patients, which may or may not necessarily be the same for all patients, and seeks to understand how best to deliver care that the patient needs.

Potential areas for collaboration include video and voice AI analytics, EMS and cardiac arrest resuscitation and post cardiac arrest care.

Journals & Publications

  1. Lim SL, Lau YH, Chan MY, Chua T, et al. Early Coronary AngiographyIs Associated with Improved 30-Day Outcomes among Patients with Out-of-Hospital Cardiac Arrest. J Clin Med. 2021 Nov 6;10(21):5191. doi: 10.3390/jcm10215191.
  2. Lim SH, Chee TS, Wee FC, et al. Singapore basic cardiac life support and automated external defibrillation guidelines 2021. Singapore Med J 2021; 62(8): 415-423. doi: 10.11622/smedj.2021108.
  3. Ching CK, Leong BS, Nair P, et al. Singapore advanced cardiac life support guidelines 2021. Singapore Med J 2021; 62(8): 390-403. 10.11622/smedj.2021109.
  4. Phua K, Chew NWS, Sim V, Zhang AA, Rastogi S, Kojodjojo P, Chor WD, Koh BC, Leong BS, Ng ZY, Tung BW, Ambhore A, Kong WKF, Poh KK, Chai P, Ng G, Chan KH, Lee CH, Loh JP,Low AF, Chan MY, Yeo TC, Tan HC, Loh PH. One-year outcomes of patients with ST-segment elevation myocardial infarction during the COVID-19 pandemic. J Thromb Thrombolysis. 2021 Aug 26:1–11. doi: 10.1007/s11239-021-02557-6.
  5. White AE, Ho AFW, Shahidah N, et al. An essential review of Singapore's response to out-of-hospital cardiac arrests: Improvements over a ten-year period. Singapore Med J 2021; 62(8): 438-443. 10.11622/smedj.2021114.
  6. Chia YW, Lim SL, Loh JK, et al. Beyond return of spontaneous circulation: Update on post-cardiac arrest management in the intensive care unit. Singapore Med J 2021; 62(8): 444-451. 10.11622/smedj.2021115.
  7. Ho AFW, Tan TXZ, Latiff E, Shahidah N, Ng YY, Leong BS, Lim SL, Pek PP, Gan HN, Mao DR, Chia MYC, Cheah SO, Tham LP, Ong MEH. Assessing unrealised potential for organ donation after out-of-hospital cardiac arrest. Scand J Trauma Resusc Emerg Med. 2021 Jul 28;29(1):105. doi: 10.1186/s13049-021-00924-z.
  8. Lau Y, Cheng LJ, Chow XP, Chee DGH, Lim ZJ, Hamid ZBA, Leong BS, Lau ST. Evaluating the effectiveness of interprofessional advanced cardiac life support training: a sequentialmixed-methods approach. J Interprof Care. 2021 Jun 1:1-12. doi: 10.1080/13561820.2021.1892611.
  9. Lim SL, Shahidah N, Saffari SE, Ng QX, Ho AFW, Leong BS, Arulanandam S, Siddiqui FJ, Ong MEH. Impact of COVID-19 on Out-of-Hospital Cardiac Arrest in Singapore. Int JEnviron Res Public Health. 2021 Mar 31;18(7):3646. doi: 10.3390/ijerph18073646.
  10. Wong XY, Fan Q, Shahidah N, De Souza CR, Arulanandam S, Ng YY, Ng WM, Leong BSH, Chia MYC, Ong MEH. Impact of dispatcher-assisted cardiopulmonary resuscitation and myRespondermobile app on bystander resuscitation. Ann Acad Med Singap. 2021 Mar;50(3):212-221. doi: 10.47102/annals-acadmedsg.2020458.

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