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Sng Ban Leong

Associate Professor

Vice Chair, Research, Anaesthesiology & Perioperative Sciences Academic Clinical Programme



Education Qualifications: MBBS, MMed (Anaesthesiology), FANZCA, FFPMANZCA, MCI, FAMS

Dr Sng Ban Leong is a Senior consultant and Head of Department at Women's Anaesthesia, KK Women’s and Children’s Hospital (KKH). He is an Associate Professor at Duke-NUS Medical School Singapore. He is the Academic Vice Chair (Research) of SingHealth Anaesthesiology and Perioperative Sciences ACP.

Dr Sng received his medical degree from National University of Singapore School. He completed the Masters in Clinical Investigation and his specialist training in Singapore and pain fellowship at the Royal Perth Hospital. He has been awarded several clinical research grants including the NMRC Clinician Scientist Award, NHIC I2D and I2I Grants, NMRC Clinical Trials Grant, NMRC Transition Award, Centre Grant and Singhealth Foundation Clinical Trials Grant. 

Dr Sng is a mentor and co-mentor of the Duke-NUS Year 3 student projects and teaching in the Anesthesiology Integrated Program. He has won the NUS Dean's Award for Teaching Excellence (2014). He is also the Clinician Scientist Mentor and Core Faculty in the SingHealth Anesthesiology Residency Program and coordinates the obstetric anaesthesia research elective for senior residents.


Professional Appointments and Committee Memberships:Awards:Leadership positions / roles in Education:

  • Member, KKH Research Committee 2016-present
  • Adjunct Assistant Professor, Faculty of Engineering, NUS 2013-present
  • Senior Clinical Lecturer, Yong Loo Lin School of Medicine, Medicine, NUS 2011-present


  • SingHealth Excellence Awards - Distinguished Researcher Award (2017)
  • AM-ETHOS Academic Mentor Development Fellowship (2017)
  • Clinician Scientist Award National Medical Research Council Award (2016)
  • Singapore Quality Service (Star) Award (2016)
  • Publish! Award (Medical Research) Singapore Health Services (2015)

Leadership positions / roles in Education: 

  • Clinician-Scientist Mentor and Core Faculty, Singhealth Anaesthesiology Residency Programme

Research Interests: Obstetric epidural anaesthesia and analgesia, opioid analgesia, closed-loop systems and chronic post-surgical pain.

Selected Publications:

Tan HS, Li SY, Yao WY, Yuan YJ, Sultana R, Han NR, Sia AT, Sng BL. Association of Mallampati scoring on airway outcomes in women undergoing general anesthesia with Supreme laryngeal mask airway in cesarean section. BMC Anesthesiol 2019 Jul 8;19(1): 122. JIF: 1.788

Yao WY, Li SY, Yuan YJ, Tan HS, Han NR, Sultana R, Assam PN, Sia AT, Sng BL. Comparison of Supreme laryngeal mask airway versus endotracheal intubation for airway management during  general anesthesia for cesarean section: a randomized controlled trial. BMC Anesthesiol 2019 Jul 8;19(1):123. JIF: 1.788

Tan HS, Sng BL. Sia ATH. Reducing breakthrough pain during labour epidural analgesia: an update. Curr Opin Anaesthesiol 2019 Jun;32(3):307-314. JIF: 2.581

Oh TT, Ikhsan M, Tan KK, Rehena S, Han NR, Sia ATH, Sng BL. A novel approach to neuraxial anesthesia: application of an automated ultrasound spinal landmark identification. BMC Anesthesiol 2019 Apr 16;19(1):57. JIF: 1.788

Chan JJI, Gan YY, Dabas R, Han NR, Sultana R, Sia ATH, Sng BL. Evaluation of association factors for labour episodic pain during epidural analgesia. J Pain Res 2019 Feb 15;12:679-687. JIF: 2.645

Goy RWL, Ithnin F, Lew E, Sng BL. Exploring the challenges of task-centred training in obstetric anaestehsia in the operating theater environment. Int J Obstet Anesth 2019 Feb. JIF: 3.404

Ching YY, Wang C, Tay T, Loke YM, Tang PH, Sng BL, Zhou L. Altered sensory insular connectivity in chronic postsurgical pain patients. Front Hum Neurosci 2018 Dec 5;12:483. JIF: 2.871

Lee JSE, Sultana R, Han NLR, Sia ATH, Sng BL. Development and validation of a predictive risk factor model for epidural re-sitting in women undergoing labour epidural analgesia: a retrospective cohort study. BMC Anesthesiol 2018 Nov 29;18(1):176. JIF: 1.78

Sng BL, Ching YY, Han NR, Ithnin FB, Sultana R, Assam PN, Sia ATH. Incidence and association factors for the development of chronic post-hysterectomy pain at 4- and 6-month follow-up: a prospective cohort study. J Pain Res. 2018 Mar 27;11:629-636. JIF: 2.645

Sng BL, Du W, Lee MX, Ithnin F, Mathur D, Leong WL, Sultana R, Han NR, Sia AT. Comparison of double intravenous vasopressor automated system using nexfin versus manual vasopressor bolus administration for maintenance of haemodynamic stability during spinal anaesthesia for caesarean delivery: A randomised double-blind controlled trial. Eur J Anaesthesiol. 2018 May;35(5):390-397. JIF: 3.958

Sng BL, Tan M, Yeoh CJ, Han NR, Sultana R, Assam PN, Sia AT. Incidence and risk factors for epidural re-siting in parturients with breakthrough pain during labour epidural analgesia: a cohort study. Int J Obstet Anesth. 2018 May;34:28-36. JIF: 3.404

Sng BL, Zeng Y, de Souza NNA, Leong WL, Oh TT, Siddiqui FJ, Assam PN, Han NR, Chan ES, Sia AT. Automated mandatory bolus versus basal infusion for maintenance of epidural analgesia in labour. Cochrane Database Syst Rev. 2018 May 17;5:CD011344. JIF: 6.754

Tan DJA, Sultana R, Han NLR, Sia ATH, Sng BL. Investigating determinants for patient satisfaction in women receiving epidural analgesia for labour pain: a retrospective cohort study. BMC Anesthesiol. 2018 May 9;18(1):50. JIF: 1.788

Li SY, Yao WY, Yuan YJ, Tay WS, Han NR, Sultana R, Assam PN, Sia AT, Sng BL. Supreme™ laryngeal mask airway use in general Anesthesia for category 2 and 3 Cesarean delivery: a prospective cohort study. BMC Anesthesiol. 2017 Dec 19;17(1):169. JIF: 1.788