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Dr Arjun Bolem

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  • Associate Consultant, Division of Neurosurgery, Department of Surgery, Alexandra Hospital
  • Associate Consultant, Division of Neurosurgery, Department of Surgery, National University Hospital





Clinical Disciplines/Programmes:

Surgery, Surgical Oncology

Special Interests:

Skull-Base Surgery, Neurovascular Surgery, Neuro-Oncology, Endonasal Surgery for Pituitary Tumours, Spine Surgery


Dr Arjun Bolem is an Associate Consultant in the Division of Neurosurgery, Department of Surgery, National University Hospital. He completed his MBBS at the Yong Loo Lin School of Medicine, National University of Singapore (YLLSoM-NUS) in 2013 and was a part of the coveted Dean’s Dinner in his final year. 

He was accepted into the Neurosurgical residency program at National University Health System (NUHS) in 2016, and concurrently, into the Clinician-Scientist residency in 2020. During his residency, he also embarked on and completed a Masters in Clinical Investigation (MCI) at NUS. 

He subsequently completed both residency programs in 2023 and graduated with the highest score in the exit examination for Neurosurgery. (Fellowship of Royal College of Surgeons (Edinburgh) in Surgical Neurology). 

He completed a 1 year fellowship at Addenbrookes Hospital, Cambridge, United Kingdom under the supervision of Mr Richard Mannion, Mr Adel Helmy, Mr Mathew Guilfoyle, Mr Rodney Laing, Mr Jibin Francis, and Mr Mark Kotter. He divided his time there between Spine and Skull Base surgery, spending six months in each field. 

He has a General Neurosurgical practice with particular interests in skull base tumours, pituitary lesions, spine tumours, neuro-oncology, and degenerative spine conditions.


  • 2022 - Gold Medal for Highest Score in FRCSEd (Surgical Neurology) Exam

Journals & Publications

  1. Lim, Xin & Capinpin, Sharah & Bolem, Nagarjun & Foo, Aaron & Yip, Wai-Cheong & Kumar, Alan & Teh, Daniel. (2023). Biomimetic nanotherapeutics for targeted drug delivery to glioblastoma multiforme. Bioengineering & Translational Medicine. 8. 10.1002/btm2.10483.
  2. Bolem, Nagarjun & Soon, Yu & Ravi, Sreyes & Dinesh, Nivedh & Teo, Kejia & Nga, Vincent & Lwin, Sein & Yeo, Tseng Tsai & Vellayappan, Balamurugan. (2022). Is there any survival benefit from post-operative radiation in brain metastases? A systematic review and meta-analysis of randomized controlled trials. Journal of Clinical Neuroscience. 99. 327-335. 10.1016/j.jocn.2022.03.024.
  3. Teh, Daniel & Bansal, Akshaya & Chai, Chou & Toh, Tan Boon & Tucker, Robert & Gammad, Gil & Yeo, Yan & Lei, Zhendong & Zheng, Xiang & Yang, Fengyuan & Ho, John & Bolem, Nagarjun & Wu, Bing & Gnanasammandhan, Muthu & Hooi, Lissa & Dawe, Gavin & Libedinsky, Camilo & Ong, Wei-Yi & Halliwell, Barry & Kennedy, Brian. (2020). Photodynamic Therapy: A Flexi-PEGDA Upconversion Implant for Wireless Brain Photodynamic Therapy (Adv. Mater. 29/2020). Advanced Materials. 32. 2070219. 10.1002/adma.202070219.
  4. Zhang, John & Aw, Natalie & Tan, Choo & Lee, Keng Siang & Chen, Vanessa & Wang, Shilin & Dinesh, Nivedh & Foo, Aaron & Yang, Ming & Goh, Chun & Bolem, Nagarjun & Quah, Boon & Sun, Ira & Ng, Zhi & Teo, Kejia & Pang, Boon & Yang, Eugene & Lwin, Sein & Low, Shiong & Nga, Vincent. (2021). Impact of time to resumption of antithrombotic therapy on outcomes after surgical evacuation of chronic subdural hematoma: A multicenter cohort study. Journal of Clinical Neuroscience. 89. 10.1016/j.jocn.2021.05.036.
  5. Zhang, John & Ong, Jamie & Tan, Yu & Yeo, Joshua & Lee, Keng Siang & Goh, Chun & Bolem, Nagarjun & Tan, Chin Lik & Yuan, Yang & Teo, Kejia & Lwin, Sein & Yeo, Tseng Tsai & Kirollos, Ramez & Nga, Vincent. (2021). Predictors of 30-day postoperative systemic complications in geriatric patients undergoing elective brain tumor surgery. Journal of Clinical Neuroscience. 85. 72-77. 10.1016/j.jocn.2020.12.023.
  6. Bolem, Nagarjun & Nga, VincentDiong & Ning, Chou & Yeo, TsengTsai & Lin, Jeremy & Sharma, Vijay. (2020). Coexisting Moyamoya Syndrome and Type 1 Diabetes Mellitus: A Case Report and Review of the Literature. Asian Journal of Neurosurgery. 15. 194. 10.4103/ajns.AJNS_218_19.
  7. Lee, Keng Siang & Zhang, John & Bolem, Nagarjun & Leong, MayLian & Goh, ChunPeng & Hassan, Mohammad Rashidul & Salek, Al & Lwin, AsherPaul & Teo, Kejia & Ning, Chou & Nga, Vincent & Yeo, TsengTsai. (2020). Freehand Insertion of External Ventricular Drainage Catheter: Evaluation of Accuracy in a Single Center. Asian Journal of Neurosurgery. 15. 45. 10.4103/ajns.AJNS_292_19.

Professional Memberships

  • Fellow of the Royal College of Surgeons (Edinburgh)

1E Kent Ridge Road, NUHS Tower Block, Singapore 119228
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National University Health System
  • National University Hospital
  • Ng Teng Fong General Hospital
  • Alexandra Hospital
  • Jurong Community Hospital
  • National University Polyclinics
  • Jurong Medical Centre
  • National University Cancer Institute, Singapore
  • National University Heart Centre, Singapore
  • National University Centre for Oral Health, Singapore
  • NUHS Diagnostics
  • NUHS Pharmacy
  • Yong Loo Lin School of Medicine
  • Faculty of Dentistry
  • Saw Swee Hock School of Public Health
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