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Assoc Prof Ong Peck Leong

Dr Ong Peck Leong from National Neuroscience Institute

Assoc Prof Ong Peck Leong

​MBBS, FRACS (Neurosurgery)

Emeritus Consultant


A/Prof Ong Peck Leong is Emeritus Consultant, Department of Neurosurgery at the National Neuroscience Institute. He was Head of Department of Neurosurgery at Tan Tock Seng Hospital from 1986 to 2001, and was also Chairman of the Specialist Training Committee for Neurosurgery from 1998 to 2012.

A/Prof Ong specialises in radiosurgery and stereotactic radiotherapy of cerebral tumours and arteriovenous malformations, and is a Member, Examination Subcommittee for the Neurosurgery Residency Programme.



FRACS (Neurosurgery)

Professional Appointments and Committee Memberships

  • Emeritus Consultant, Department of Neurosurgery, National Neuroscience Institute
  • Visiting Consultant, National Cancer Centre Singapore
  • Clinical Associate Professor, Yong Loo Lin Medical School


  • ​Public Administration Medal (Silver), 1985
  • WHO Fellowship in Neurosurgery, 1975 - 1977

Research Interests


  • ​Tribute to Tham Cheok Fai, “Founding father” of Singapore Neurosurgery.  Aaron SC Foo, James CM Khoo, Peck Leong Ong, Kee Hang Ho, Wan Tew Seow, Tseng Tsai Yeo,  Annals Academy of Medicine Vol 44 No 8, August 2015
  • Chapter 10:  Assessment of Central Nervous Function.  5th Edition, A Guide to the Assessment of Traumatic Injuries and Occupational Diseases for Workmen’s Compensation.   Ministry Of Manpower. 2007
  • Badion MLS, Lim CC, Teo J, PL Ong, Hui F.  Solitary fibrous tumor of the hypoglossal nerve.  Am J Neuroradiology 2003;24(3):343-345
  • Nagar VA, Ye J, Xu M, Ng WH, Yeo TT, PL Ong, Lim CC. Multivoxel MR spectroscopic imaging - distinguishing intracranial tumors from non-neoplastic disease. Ann Acad Med Singapore 2007;36:309-313
  • I Ng, TT Yeo, TWK Lew, DR Smith,  PL Ong, HS Goh.   Apoptosis is Induced Following Closed Head Injury In Humans.  Ann Acad Med.  1999, 28:263-5
  • I Ng, GH Ong, G Kuik, TWK Lew, TT Yeo, WT Seow, KK Tan, PL Ong. The Effects of Head Posture on Physiological Parameters During the Acute Stage of Brain Trauma.  Submitted to Surgical Neurology
  • I Ng, TT Yeo, KK Tan, PL Ong.  Correlation of Outcome to the Level of Perfusion Pressure Achieved.  Proceedings of the 11th International Congress of Neurological Surgery, Moduzzi Editore 11:1293-1299, 1997
  • I Ng, TWK Lew, TT Yeo, WT Seow, KK Tan, PL Ong.  Outcome of the Severely Head-injured Managed on a Traumatic Brain Injury Protocol.  Ann Acad Med 1998; 27: 332-339
  • M Y Y Tung, P L Ong, W T Seow & K K Tan.  A study on the efficacy of intraventricular urokinase in the treatment of intraventricular haemorrhage.  British  J of Neurosurgery, 1998; 12 (3):234-239
  • A Wong, J Tan, TT Yeo, PL Ong, F Hui. Surgical Excision of Intracranial Arteriovenous Malformations After Preoperative Embolization with NBCA.  Annals of the Academy of Medicine, Singapore 26: 475-80, 1997
  • F Hui, KH Lee, S Ng, PL Ong, HK Boey:  Glue Embolization of Intracranial & Extracranial AVMs. Asean J of Radiology, Vol 1, 35-47, 1995
  • Brain Abscesses: Review of 30 Cases treated with Surgery.  PY Ng, WT Seow, PL Ong.  Australia NZ J of Surgery 1995. 65, 9:644-47
  • Preliminary Results of a prospective Controlled Study on Treatment of Intravascular Haemorrhage with Intraventricular Urokinase.  Ong et al Annals of Academy of Medicine, August 1991
  • Surgical Treatment of Moyamoya Disease:  Results in 9 cases undergoing Revascularization Procedure.  TT Yeo, B Sadasivan, K H Lee, KK Tan, PL Ong.  Annals of Academy of Medicine, August 1991
  • T T Yeo, W T Seow, K H Lee, K K Tan, P L Ong: CT-directed Stereotactic Neurosurgery - Local Experience with 41 Cases.  Singapore Medical Journal Vol 32, 307-311, 1991
  • P L Ong, T T Yeo & W T Seow: Tuberculomas of the Brain - Report of 2 Cases & Review of Literature. Singapore Medical Journal 1991
  • P L Ong, K T Tan, J S Cheah: Sphenoid Sinus Aspergillosis Presenting as Pituitary Adenoma. Singapore Medical Journal 1988
  • P L Ong: Management of Trigeminal Neuralgia. Singapore Medical Journal Vol 28, No 1 1987
  • L Tay, P L Ong, L Lang: Nosocomial Infections in a Neurosurgical Department. Annals of Academy of Medicine Vol 16, No 4, Oct 1987
  • P L Ong & K P Tan: Spinal Compression Due To Coarctation Of Aorta. Radiology, 1979

Research Trials

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