Dr Ong Kian Chung is a respiratory physician practising at Mount Elizabeth Hospital, Singapore. He subspecialises in intensive care medicine and treats respiratory disorders, such as chronic obstructive pulmonary disease (COPD), sleep apnoea, bronchitis, wheezing, asthma, shortness of breath and lung cancer.

Dr Ong completed his Bachelor of Medicine, Bachelor of Surgery at the National University of Singapore. He then pursued further training as a fellow in the Department of Pulmonary and Critical Care Medicine at the Stanford University Medical Centre, USA. He was also a visiting clinical and research fellow at the the Stanford Centre for Sleep Sciences and Medicine, USA. He is also a fellow of the American College of Chest Physicians (ACCP).

Dr Ong was formerly a senior respiratory consultant at the Tan Tock Seng Hospital (TTSH) and a visiting consultant to the Singapore General Hospital (SGH), National Heart Centre Singapore and St Luke's Hospital. He was also a clinical lecturer at the Yong Loo Lin School of Medicine, NUS.

Dr Ong has been in private practice for more than 15 years.



Bachelor of Medicine, Bachelor of Surgery, National University of Singapore

Member of the Royal College of Physicians of the United Kingdom

Fellow of the Royal College of Physicians of Edinburgh, UK



Among Dr Ong's clinical achievements are the establishment of novel treatment modalities such as Pulmonary Rehabilitation, Noninvasive Ventilation and Hospital-at-Home Programmes for patients with chronic respiratory disorders in Singapore . His research interests include Sleep-related Breathing Disorders, Pulmonary Function and Exercise Testing, and Disease Management in Chronic Obstructive Pulmonary Disease.

Dr. Ong has published over 70 scientific papers and abstracts in peer-reviewed professional journals such as CHEST, European Respiratory Journal and American Journal of Respiratory & Critical Care Medicine, and regularly presents his research findings at major scientific congresses.
He is a reviewer for the journals CHEST, Respirology and the 
Singapore Medical Journal, and was the past Editor of the Medical Digest.

Presently he is also the co-editor-in-chief (Asia Section) of the journal "Update in Respiratory Technology and Applied Technology." He is also a member of the Editorial Board of the journal "Clinical Medicine: Case Reports"

 Dr Ong is the Founder & President of the Chronic Obstructive Pulmonary Disease Association ( Singapore ) ( www.copdas.com ) and is recognized by the G lobal Initiative for Chronic Obstructive Lung Disease (GOLD) as the National Leader in Singapore ( www.goldcopd.com ).



Medical Express - Championing COPD
This article was first published in Ezyhealth and Beauty magazine - November 2009 issue.

COPD update 2009
This article was first published in Ezyhealth and Beauty magazine - November 2009 issue.



  1. Depressive symptoms and chronic obstructive pulmonary disease: effect on mortality, hospital readmission, symptom burden, functional status, and quality of life. Arch Intern Med. 2007 Jan 8; 167(1):60-7.This study emphasizes the extent and impact of depression in COPD. For more, click here...  

  2. Does the multidimensional grading system (BODE) correspond to differences in health status of patients with COPD? Int J COPD 2006; 1(1):91-96.This study discusses the utility of the new classification system for COPD (BODE index). For more, click here...  

  3. A multidimensional grading system (BODE index) as predictor of hospitalization for COPD. Chest. 2005 Dec; 128(6):3810-6.The BODE index is a new system of classifying the severity of COPD. This is the first study that assesses the utility of the BODE index in predicting how often a COPD patient will require hospitalization for his or her condition. For more, click here...

  4. 1-year pulmonary function and health status in survivors of severe acute respiratory syndrome. Chest. 2005 Sep; 128(3):1393-400. For more, click here...

  5. Pulmonary function and exercise capacity in survivors of severe acute respiratory syndrome. Eur Respir J. 2004 Sep; 24(3):436-42. For more, click here...

  6. Comparison of different exercise tests in assessing outcomes of pulmonary rehabilitation. Respir Care. 2004 Dec; 49(12):1498-503 This latest study compares the 3 most frequently utilized exercise tests in pulmonary rehabilitation. For more, click here...

  7. Effects of inhaled furosemide on exertional dyspnoea in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med. 2004 May 1; 169(9):1028-33. In this study, a widely available and inexpensive medication commonly used for diuresis (removing excess fluid from the body) has been found to possibly reduce the breathlessness that COPD patients feel during exercise, if the medication is inhaled instead of administered the usual way. For more, click here...

  8. Predictors of success in smoking cessation among hospitalised patients. Ann Acad Med Singapore. 2003 Sep; 32(5 Suppl):S67-9. This study found that, among other factors, patients hospitalised for the first time are more likely to quit smoking when they are given smoking cessation counselling and advice during and following their hospital stay. For more, click here...

  9. Reducing hospitalisation for acute exacerbation of COPD with a Home Care Programme.  Proceedings of the 8th Asian Pacific Society of Respirology Congress, page 15-18. A home care programme initiated for the first time locally to help COPD patients manage themselves at home during and following periods of worsening of their condition shows success in reducing hospitalization for this condition. 

  10. Factors associated with improvement in breathing capacity during exercise in patients with chronic obstructive pulmonary disease. Respirology 2003; 8:332-8. This study describes the various physiological factors limiting COPD patients' ability to undergo exercise. For more, click here...

  11. Effects of a Pulmonary Rehabilitation Programme on Physiologic and Psychosocial Outcomes in Patients with Chronic Respiratory Disorders. Ann Acad Med Singapore 2001; 30:15-21. This study describes the success of the first patients to undergo pulmonary rehabilitation in Singapore.
    For more, click here...

  12. Cardiopulmonary Exercise Testing in Patients with Chronic Obstructive Pulmonary Disease Ann Acad Med Singapore 2000; 29:648-52. The various factors that limit COPD patients' ability to exercise are investigated in this study. For more, click here...

  13. Active Management of a Patient with End-stage Pulmonary Emphysema using Lung Volume Reduction Surgery and Intensive Rehabilitation. Ann Acad Med Singapore 2000; 29:127-31. This is a report of one of the first COPD patients to undergo lung volume reduction surgery in Singapore. For more, click here...

  14. COPD prevalence in 12 Asia-Pacific countries and regions: projections based on the COPD prevalence estimation model. Respirology. 2003 Jun; 8(2):192-8. This study done around the Asia-Pacific region looks at how many people are estimated to have COPD.
    For more, click here...

  15. Epidemiology of respiratory viruses in patients hospitalized with near-fatal asthma, acute exacerbations of asthma, or chronic obstructive pulmonary disease. Am J Med. 2003 Sep; 115(4):272-7. An interesting comparison is done to compare the different respiratory viruses present in patients with asthma and COPD. For more, click here...

  16. For more publications by Dr Ong, click here and type "Ong KC" in the search bar at the top.



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