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Home > Our Doctors > Our Doctors > Department of Cardiac, Thoracic and Vascular Surgery > Assistant Professor Ramanathan K.R.

Assistant Professor Ramanathan K.R.



Consultant Department of Cardiac, Thoracic and Vascular Surgery, NUHCS

Assistant Professor Department of Surgery, Yong Loo Lin School of Medicine, NUS


Assistant Professor Ramanathan is an Adult Cardiac Intensivist at the Cardiothoracic Intensive Care Unit (CTICU) at the National University Heart Centre, Singapore. Having graduated from Trivandrum Medical College in India, Asst. Prof. Ramanathan completed his postgraduation MD and Diplomate National Board (DNB) examinations in Anesthesiology. He then completed his National Board Fellowship (FNB) in Cardiac Anesthesiology from Narayana Hrudayalaya, Bangalore and went to UK for further training. While working in the UK, he got selected to the ICU training programme at Brisbane in Australia. He was trained at the Royal Brisbane Hospital and the Prince Charles Hospital and he was awarded his ICU fellowship in 2011. He also completed his Diploma in Echocardiography [DipEcho] from the University of Melbourne and was awarded the honorary fellowship (FCCP) by the American College of Chest Physicians for his contributions to critical care. He worked as a consultant at the Robina Hospital in Gold Coast briefly before joining NUHCS in 2013.


Asst. Prof. Ramanathan has published several papers and has been an invited speaker at conferences and workshops. He has been actively involved in research programmes in India and Australia. He received the TN Jha Gold Medal for the best research paper from the Indian Society of Anesthesiologists. His work on congenital cyanotic heart diseases was selected for the Janak Mehta Award in Cardiac Anesthesiology while his project on Electrical Impedance Tomography in lung transplant patients got selected for the Matt Spence Medal in Intensive care.



Specialty Interest(s)


  • Post-operative Care
  • Extracorporeal Life Support
  • Infections in ICU
  • Critical Care Echocardiography
  • Simulation training
  • Quality assurance


Professional Highlights


  • Winner T.N Jha Gold medal for the best post graduate research paper- Indian Society of Anesthesiologists
  • Selected for Janak Mehta award for the best research paper in cardiothoracic anesthesia.
  • Selected for Matt Spence medal for the best research paper in Intensive care at ANZICS conference, Brisbane
  • Specialist registration with AMC in Intensive Care
  • Honorary Asst. Professor, Bond University, Gold Coast, Australia
  • Specialized in Cardiac Anesthesiology [India] and Intensive care [Australia]
  • Trained in management of ECMO, VAD, and transplant patients


Professional Memberships


  • Member. National Academy of Medical Sciences
  • Member. Indian Association of Cardiothoracic Anesthesiologists (IACTA)
  • College of Intensive Care Medicine, Australia
  • Member. American College of Chest Physicians
  • Member. Australia-New Zealand Intensive Care Society




  1. Extracorporeal membrane oxygenation for poisoning in adult patients: outcomes and predictors of mortality. Ramanathan K, Tan C.S, Rycus P, MacLaren G. Intensive Care Medicine 2017, 43[10] ,1538-1539.
  2.  Extracorporeal membrane oxygenation for adult community acquired pneumonia: survival and predictors of mortality. Ramanathan K, Tan C.S, Rycus P, MacLaren G. Crit Care Med, 2017, 45[5], 814-21
  3. Severe Disseminated Adenovirus in Immunocompetent Adults Needing Extracorporeal Membrane Oxygenation: A Case Series KR Ramanathan, P Tambyah, G Maclaren. European Journal Of Heart Failure 2017, 19, 16-16
  4. Dengue myopericarditis mimicking acute myocardial infarction. Ramanathan K, Teo L, Wong R, Maclaren G,  Circulation 2015; 131: 519-22
  5. Ethical Dilemmas in adult Extracorporeal Membrane Oxygenation: Emerging Conceptual challenges. Ramanathan K, Cove ME, Caleb MG, Teoh KL, Maclaren G. Journal of cardiothoracic and vascular anesthesia. 2015; 29: 229-233
  6. Refractory Hypoxemia in adult ARDS: What is the current evidence? Ramanathan K, Journal of cardiothoracic and vascular anesthesia, 2016, Volume 30 {3}, 791–799
  7. Multidisciplinary Extubation Protocol in Cardiac Surgical Patients Reduces Ventilation Time and Length of Stay in the Intensive Care Unit. Cove ME, Ying C, Taculod JM, Ramanathan K et al. Ann. Thorac. Surg. 2016;102:28–34
  8. Single-Lung Transplant Results in Position Dependent Changes in Regional Ventilation: An Observational Case Series Using Electrical Impedance Tomography. Ramanathan K, Hend Mohammed, Peter Hopkins etal. Canadian Respiratory Journal, volume 2016 (2016), Article ID 2471207, http://dx.doi.org/10.1155/2016/2471207
  9. Multidisciplinary weaning: who weans, who extubates, and how? Cove ME, Ramanathan K, Tan CS, MacLaren G. 2017, Ann Thoracic Surg.2017; 103[3],1039-40.
  10. Discrepancies between autopsy reports and clinical findings in patients who underwent Extra-corporeal Membrane Oxygenation. Ramanathan KR, Deng Jia, Ryan Neo, Eda Lim, Tan Chuen Seng, Graeme MacLaren. Critical Care and Resuscitation. 2017[ In print]
  11. Extubation to facilitate mother–baby bonding in refractory acute respiratory distress syndrome. Maclaren G, Ramanathan K, Sorokin V. Intensive care medicine. 2014; 40:1558-1559
  12. An unusual case of cardiac sarcoidosis. Ramanathan K, D Platts, YV Apte, D Mutalidas.  Sarcoidosis Vasculitis And Diffuse Lung Diseases 2014; 31; 71-75
  13. Anesthesia for Angelman syndrome.  Ramanathan, Muthuswamy, Brian Jenkins, Anaesthesia, 2007, vol 63 no.6, 659-61.
  14. A smoker with cyanosis and hypotension- Ramanathan, Nikki Blackwell. BMJ Case reports, 2010.
  15. Delayed presentation of Angiotensin converting enzyme inhibitor induced angioedema- a case report. – Guy A, Waidyasekhara P, Ramanathan K BMJ Case Reports, July 2013
  16. Fulminant psittacosis in a traveller Waidyasekara P, Ramanathan K. JMM Case Reports. 2015; 2.
  17. Inhalational Nitroglycerine and pulmonary hypertension. Ramanathan KR, e-letters, British Journal of Anesthesia, 2006, vol 97.
  18. An interesting case of Coronary- cameral fistula. SK Mohanty, Ramanathan, Banakal S, Muralidhar K, Annals of Cardiac Anesthesia, vol 8 no. 2, 152-54.
  19. Efficacy of propofol in prevention of nausea- vomiting in gynecological surgeries     .Ramanathan KR, Augustus, Thirvengadam etal, Internet Journal of Anesthesiology,2004,  vol 7 no. 1
  20. Renal function in off pump Coronary Artery Bypass surgery:  Effects of pentastarch and tetrastarch: a double blind randomised trial. Ramanathan, Sanjay Banakal, Muralidhar, Internet Journal of Anesthesiology,2008,vol 17 no.2

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