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Dr Vijayan Joy

Dr Vijayan Joy

​FRCP (Edin), FAMS (Singapore)


Conditions Treated by this Doctor:
Motor Neuron Disease, Myasthenia Gravis, Neuromuscular Diseases.


​Dr Vijayan completed his basic medical training in India. He attained his Membership from the Royal College of Physicians of UK in 2011 and subsequently completed training in Neurology from the National University Hospital, Singapore in 2016. He completed his Fellowship in Neuromuscular Disorders from the University of Toronto, Canada in 2020. He worked as a Consultant in the Neurology Division of the National University Hospital till the end of 2023. Prior to coming to Singapore, he held faculty positions at the Christian Medical College, Vellore and the National Institute of Mental Health and Neurosciences, Bangalore. He is a diplomate of the European Board of Neurology and the American Board of Electrodiagnostic Medicine. He is a Follow of the Academy of Medicine (Singapore) and the Royal College of Physicians (Edinburg). He has more than 20 years of experience working in Neurology.  He has a keen interest in disorders of the peripheral nerves and focal neuropathies and plexopathies.


  • ​Fellowship in Neuromuscular Disorders: University of Toronto, Canada.
  • American Board of Electrodiagnostic Medicine (ABEM)- Neuromuscular Ultrasound-Certificate of Added Qualification
  • American Board of Electrodiagnostic Medicine (ABEM)- Certificate of Recognition
  • Specialist Certification in Neurology (Specialist Accreditation Board, Singapore)
  • Diploma of European Board of Neurology (European Board of Neurology)
  • Specialty Certificate Examination in Neurology (Royal College of Physicians, UK)
  • MRCP Diploma (Royal College of Physicians, UK)
  • DM in Neurology (Christian Medical College, Tamil Nadu, India)
  • MD in Internal Medicine (Manipal Academy of Higher Education, India)
  • MBBS (Mangalore University, Karnataka, India)

Professional Appointments and Committee Memberships

  • Fellow of the Royal College of Physicians (FRCP) 148534
  • Fellow of the Academy of Medicine, Singapore (FAMS)


  • ​Great Teacher Award AY2021-22. Undergraduate teaching award.
  • Residents' Choice Awards 2020. For dedication and contribution in core Education Program. 
  • Dedicated Teacher Award: 2019 Residents’ Choice Awards (for consecutive years of teaching in weekly R1 CEP teaching and/or R2 module) May 2019
  • Residents’ Choice Awards: Professional Development Session Awards. Top simulation session- Medical Emergencies- May 2018 Department of Medicine, National University Hospital, Singapore.
  • Residents’ Choice Awards: Professional Development Session Awards. Top simulation Session-Medical Emergencies- September 2017. Department of Medicine, National University Hospital, Singapore.
  • Residents’ Choice Awards: Short, sweet and illuminating talk 2016. Department of Medicine, National University Hospital, Singapore.
  • Residents’ Choice Awards: Best Case-Based Session-Approach to a confused patient 2015, Department of Medicine, National University Hospital, Singapore.
  • Angel Registrar award 2014; Department of Medicine, National University Hospital, Singapore.
  • Best paper award 2009 Asian and Oceanian Congress of Clinical Neurophysiology April 15-18 Seoul, South Korea. Combined Doppler and B-Mode Sonography in Carpal Tunnel Syndrome. J Vijayan, AK Therimadasamy, YC Chan, Einar Wilder-Smith

Research Interests

  1. ​Ei Zune The, Ng Naing Lin, Ching Jocelyn Chan, Jason Cher Wei Loon, Benjamin Yong-Qiang Tan, Chee Seong Raymond Seet, Hock Luen Teoh, Joy Vijayan, Leong Litt Leonard Yeo. Antiplatelets or anticoagulants? Secondary prevention in Cervical artery dissection: An updated meta-analysis. Neurological Research and Practice. 2022 Jun 13; 4(1): 23.
  2. Isabel Siow, Cheun Chan Yee, Kay Ng, Joy Vijayan, Alison Ng, Jonathan Ong, Anslem Mak, Amanda Chan. Toxic exposure in a clinical pathology laboratory as a potential occupational health hazard causing small fiber neuropathy. International Journal of Occupational and Environmental Safety 2022; 6(1); 9-13.
  3. Lim Jin Xi, Joy Vijayan, Sandeep Sebastian. Normative value of the cross-sectional are of the median nerve at the carpal tunnel inlet and distal forearm in the Singapore population. Journal of Hand Surgery (Asia Pacific). 2022; 27(04): 649-655.
  4. Deepak Mohan, Joy Vijayan, John-Philip Lawo, Orell Mieke, Mylan Ngo, James Dela Cruz, Vera Bril. Duration and temporal dispersion measurements in CIDP subjects from the Polyneuropathy and Treatment with Hizentra (PATH) study. RRNMF Neuromuscular Journal 2021;2(3):27-34.
  5. Joy Vijayan, Deepak Mohan, Carolina Barnett, Hans Katzberg, Leif Erik Lovblom, Vera Bril. Clinical profile and impact of comorbidities in patients with very-late onset myasthenia gravis. Muscle Nerve 2021 Oct; 64(4): 462-466.
  6. Jasmin Shimin Koh, Yihui Goh, Benjamin Yong-Qiang Tan, Andrew Che-Fai Hui, Rebecca Hui Min Hoe, Andrew Makmur, Pin Lin Kei, Joy Vijayan, Kay Wei Ping Ng, Amy May Lin Quek, Umapathi Thirugnanm. Neuralgic amyotrophy following COVID-19 mRNA vaccination. QJM 2021Aug 4:hcab216.doi:10.1093/qjmed/hcab216.
  7. Lee PY, Oen KQX, Lim GRS, Hartono JL, Muthiah M, Huang DQ, Teo FSH, Li AY, Mak A, Chandran NS, Tan CL, Yang P, Tai ES, Ng KWP, Vijayan J, Chan YC, Tan LL, Lee MB, Chua HR, Hong WZ, Yap ES, Lim DK, Yuen YS, Chan YH, Aminkeng F, Wong ASC, Huang Y, Tay SH. Neutrophil-to-lymphocyte ratio predicts development of immune-related adverse events and outcomes from immune checkpoint blockade: A case-control study. Cancers (Basel). 2021 Mar 15;13(6):1308.
  8. Deepak Menon, Sara Alnajjar, Carolina Barnett, Joy Vijayan, Hans Katzberg, Davood Fathi, Monica Alcantara, Vera Bril. Telephonic consultation for Myasthenia Gravis Care during the COVID-19 pandemic: assessment of a novel virtual myasthenia gravis index. Muscle Nerve 2021 Apr 1.
  9. Yihui Goh, Benjamin Yong Qiang Tan, Nicole Ya-Yuan Chong, Margaret Ma, Manjari Lahiri, Andrew Makmur, Yee Cheun Chan, Soon Booon Justin Wong, Joy Vijayan. D-penicillamine in Wilson's disease: recognizing the transition from benefit to harm. eNeurologicalSci. 2021 Feb 15; 23:100328.
  10. Faith Huiwen See, Yihui Goh, Ching-Hui Sia, Benjamin Yong-Qiang Tan, Leonard Leong Yeo, Joy Vijayan, Ahmad Aftab. A Brain-Heart Interaction: Bickerstaff's brainstem encephalitis with Takotsubo cardiomyopathy. QJM 2020 July 8 doi:10.1093 (Online ahead of print).
  11. Sumanth Shivaram, Madhu Nagappa, Ravi Anadurai, BN Nandeesh, Yasha T Chickabasaviah, Joy Vijayan, Sanjib Sinha, Arun B Taly et al. Vogt-Koyanagi-Harada syndrome- A neurologist's perspective.  Annals of Indian Academy of Neurology DOI: 10.4103/aian (Online ahead of print)
  12. Chong Ya Yuan Nicole, Benjamin Yong-Qiang Tan, Joy Vijayan. Functional decline in an elderly: Connecting the dots to reach the diagnosis. American Journal of Medicine. 2020; 133(4): 432-433.
  13. May MeiQi Liau, Soong Hui Natalie tan, Tan Lixian Chris, Joy Vijayan, Nisha Suyien Chandran. Facial ulceration in stroke: an usual and lesser known complication described by Wallenberg. Neurology 2017; 90: e1448-e1449.
  14. Sundar R, Bandla A, Tan SS, Liao LD, Kumarakulasinghe NB, Jeyasekharan AD, Ow SG, Lim JS, Vijayan J, Therimadasamy AK, Hairom Z, Ang E, Thakor NV, Lee SC, Wilder-Smith EP. Limb hypothermia for preventing Paclitaxwl-induced peripheral neuropathy in breast cancer patients: A pilot study. Front Oncol. 2017 Jan 10;6:274.
  15. Chandra B, Vijayan J, Yuki N, Therimadasamy A, Wilder-Smith E. Clinical reasoning: Temporal profile of inflammatory neuropathies: Beginning to make sense of the uncertainties. Neurology 2016 Oct 18;87(16): e182-e188.
  16. Samarawickrama D, Therimadasamy AK, Chan YC, Vijayan J, Wilder-Smith EP. Nerve ultrasound in electrophysiologically verified Tarsal Tunnel Syndrome. Muscle Nerve 2015 Nov 12.
  17. Leonard LL Yeo, Rahul Rathakrishnan, Vijayan Joy, Aravinda T Kannan, Einar Wilder-Smith. Localizing median neuropathies: the role of different investigations. Annals of Academy of Medicine Singapore 2015; 44: 9.
  18. Vijayan J, Chan YC, Therimadasamy A, Wilder-Smith EP. Role of combined B-mode and Doppler sonography in evaluating neurolymphomatosis. Neurology 2015 Sep 1; 85(9): 752-5.
  19. Vijayan J, Sharma VK. Neurogenic orthostatic hypotension- management update and role of droxidopa. Ther Clin Risk Manag 2015; 8: 915-23.
  20. Vijayan, J, Sharma VK; Cerebral Venous Thrombosis: A path less travelled and making a difference. Brain Disorders and Therapy; 2014 (accepted for publication)
  21. Joy Vijayan, Chuen YC, Punzalan AM, Wilder-Smith EP. A 27-year old man with hand numbness: Exploring new horizons and reinventing the past. Neurology 2014 March11; 82(10):e80-4. 
  1. Joy Vijayan, Therimadasamy AK, Chan YC, Wilder-Smith EP. Combined Doppler and B-mode sonography in Carpal Tunnel Syndrome. J Neurological Sciences 2011 Sept 15;308(1-2): 16-20.3.   
  1. Esther ST Ng, Joy Vijayan, AK Therimadasamy, TC Tan, YC Chan, A Lim, EW Smith. The added value of Pre-operative ultrasonography of the ulnar nerve: an observational study. Muscle and Nerve 2010; 42 (4): 613-614.
  1. J Vijayan, MLS Tai, A Ahmad, VK Sharma. An unhappy patient following successful sonothrombolysis in Vertebrobasilar thrombosis: Dilemma with final diagnosis. Journal of Neuroimaging 2011; 21 (2): e173-e176.
  1. ES Ng, J Vijayan, AK Therimadasamy, TC Tan, YC Chan, A Lim, E Wilder-Smith. High resolution ultrasonography in the diagnosis of ulnar nerve lesions with particular reference to post-traumatic lesions and sites outside the elbow. Clinical Neurophysiology 2011; 122(1): 188-93.
  1. DK Prashantha, AB Taly, S Sinha, TC Yasha, N Gayathri, JME Kovur, J Vijayan. Familial amyloidotic polyneuropathy with muscle wasting, vitreous, leptomeningeal and cardiac involvement: Phenotypic, pathological and MRI description. Ann Indian Academy of Neurology 2010; 13(2) 142-144.
  1. Vijayan J, NG ST, Therimadasamy AK, Titus L, Wilder-Smith EP. A 54 year women with hand dysesthesia: many dimensions to a common problem. Neurology 2009; 73: e68-e72.
  1. Vijayan J, Therimadasamy AK, Teoh HL, Chan YC, Wilder-Smith EP. Sonography as an aid in diagnosing Tarsal tunnel syndrome. Am J Phy Med Rehab. 2009 Jun; 88(6): 500-1.
  1. Vijayan J, Therimadasamy AK, Chan C, Wilder-Smith EP. Diagnostic utility of ultrasound in Posterior Interosseous Nerve Syndrome. Archives of Neurology 2009; 66(7): 902-903.
  1. C Shyambabu, S Sinha, AB Taly, J Vijayan, JME Kovoor. Serum B12 deficiency and hyperhomocysteinemia: A reversible cause of acute chorea, cerebellar ataxia in an adult with cerebral ischaemia. J Neurological Sciences 2008; 273: 152-154.
  1. Mani RS, Yasha TC, Nagarathna S, Chandramukhi A, Shivprakash MR, Vijayan J, Prasantha DK, Pillai SV, Natarajan A, Kovoor J. Cerebral phaeohyphomycosis caused by Scytalidium dimidiatum: a case report from India. Medical Mycology 2008; 46: 705-711.
  1. J Vijayan, S Sinha, S Ravishankar, AB Taly. MR imaging in multiple system atrophy: Its role in "splitting: Parkinsonism. Ann Indian Academy of Neurology 2008; 11(4): 257-258.
  1. Karkare K, Sinha S, Ravishankar S, Gayathri N, Yasha TC, Goyal MK, Vijayan J, Vannirajan A, Thangaraj K, Taly AB. Epilepsia partialis continua in mitochondrial dysfunction: Interesting phenotypic and MRI Observations. Ann Indian Academy of Neurology 2008; 11: 193-96
  1. Praveen Kumar S, Sinha S, Taly AB, Jayasree S, Ravi V, Vijayan J, Ravishankar. Electroencephalographic and imaging profile in a subacute sclerosing panencephalitis (SSPE) cohort: a correlative study. Clin Neurophysiol. 2007; 118(9): 1947-54.
  1. Karkare K, Sinha S, Ravishankar S, Gayathri N, Yasha TC, Goyal MK, Vijayan J, Vannirajan A, Thangaraj K, Taly AB. Epilepsia partialis continua in mitochondrial dysfunction: Interesting phenotypic and MRI Observations. Ann Indian Academy of Neurology 2008; 11: 193-96.
  1. Praveen KS, Sinha S, Chandrasekhar HS, Vijayan J, Taly AB. Sporadic onset Creutzfeldt-Jacob disease: Interesting MRI observations. Neurology India 2006; 54(4): 418-420
  1. Kumar S, Vijayan J, Jacob J, Aaron S, Joseph M, Alexander M, Gnanamuthu C. Cervical spine injuries in 64 attempted suicidal hangings in India. Tropical Doctor 2005; 35(4): 198-200.
  1. S Aaron, S Kumar, J Vijayan, J Jacob, M Alexander, C Gnanamuthu. Clinical and laboratory features and response to treatment in patients presenting with Vitamin B12 deficiency related neurological syndromes. Neurology India 2005; 53: 55-58.
  1. Vijayan J, Alexander Mathew. Critical illness neuropathy. Indian J of Critical Care Medicine 2005; 9(1): 32-34.
  1. Srivatsa, Rajesh Jacob, Prathap Tharyan, Joy Vijayan, Mathew Alexander. Neuroacanthocytosis presenting with psychiatric symptoms. Indian Journal of Psychiatry 2004; 46(3): 272-273.

Publications and Research Trials

Research Trials