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Prof Lee Chi Hang Ronald

  • Senior Consultant, Department of Cardiology, National University Heart Centre, Singapore
  • Professor, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore 
  • Group Director, Clinical Research, National University Heart Centre, Singapore
Cardiology (Heart)
General Cardiology, Hypertension, Interventional Cardiology
Special Interests:
Percutaneous Coronary Intervention, Intravascular Ultrasound, Sleep-Disordered Breathing, Coronary Artery Disease, Acute Coronary Syndrome


Prof. Ronald Lee Chi Hang is a senior consultant cardiologist at the National University Heart Centre Singapore (NUHCS), and a tenured Professor at the Yong Loo Lin School of Medicine, National University of Singapore. His research interest is on sleep health and heart disease.

Prof. Lee graduated MBBS, and subsequently obtained a doctorate from University of Hong Kong. Prof. Lee's honours include the Singapore Cardiac Society Young Investigator Award (2010), National Medical Excellence Award (2011), Clinician Scientist Award (2015), and Senior Clinician Scientist Award (2018).

Prof. Lee has authored or co-authored over 200 articles in peer-reviewed medical journals. His research is supported by grants from the National Medical Research Council, Ministry of Education, Singapore Heart Foundation and medical device industries. Having performed over 2000 percutaneous coronary intervention procedures, including live demonstrations in international conferences, Prof. Lee is a senior member of the NUHCS’s interventional cardiology service. Prof. Lee has been a core faculty of the Cardiology Senior Residency Programme since 2016. He has supervised over 10 research fellows, undergraduate and postgraduate students from Singapore and overseas. Prof. Lee is a fellow of the Royal College of Physician, American College of Cardiology and Society for Cardiovascular Angiography and Interventions.

Journals & Publications

​Selected Publications:

1. Koo CY, Aung AT, Chen Z, Kristanto W, Sim HW, Tam WW, Gochuico CF, Tan KA, Kang GS, Sorokin V, Ong PJL, Kojodjojo P, Richards AM, Tan HC, Kofidis T, Lee CH. Sleep apnoea and cardiovascular outcomes after coronary artery bypass grafting. Heart. 2020; 106: 1495-1502

2. Koo CY, Drager LF, Sethi R, Ho HH, Hein T, Jim MH, Tai BC, Zhang JJ, Lee CH. Obstructive Sleep Apnea and Diabetes Independently Add to Cardiovascular Risk After Coronary Revascularization. Sleep and Stent Study Investigators. Diabetes Care. 2018; 41: e12-e14.

3. Lee CH, Sethi R, Li R, Ho HH, Hein T, Jim MH, Loo G, Koo CY, Gao XF, Chandra S, Yang XX, Furlan SF, Ge Z, Mundhekar A, Zhang WW, Uchôa CH, Kharwar PB, Chan PO, Chen SL, Chan MY, Richards AM, Tan HC, Ong TH, Roldan G, Tai BC, Drager LF, Zhang JJ. Obstructive Sleep Apnea and Cardiovascular Events after Percutaneous Coronary Intervention. Circulation 2016; 133: 2008-17.

4. Zhao LP, Kofidis T, Chan SP, Ong TH, Yeo TC, Tan HC, Lee CH. Sleep Apnea and Re-admission in Patients Scheduled for Coronary Artery Bypass Surgery. Atherosclerosis 2015; 242: 128-134.

5. Tan AY, Hau W, Ho HH, Ghaem Maralani H, Loo G, Khoo SM, Tai BC, Richards AM, Ong P, Lee CH. Obstructive Sleep Apnea and Coronary Plaque Characteristics. Chest. 2014; 145: 322-30.

6. Lee CH, Khoo SM, Tai BC, Chong EY, Lau C, Than Y, Shi DX, Lee LC, Kailasam A, Low AF, Teo SG, Tan HC. Obstructive Sleep Apnea in Patients Admitted for Acute Myocardial Infarction: Prevalence, Predictors, and Effect on Microvascular Perfusion. Chest. 2009; 135: 1488-95.

7. Lee CH, Tan HC, Wong HB, Zhang XL, Fun S, Gay M, Qu L, Lim J, Low A, Lim YT. Incidence, predictors and outcomes of Device Failure of X-sizer thrombectomy. Experience of 200 cases in 5 years. Am Heart J. 2007; 153: e13-9.

8. Lee CH, Low A, Tai BC, Co M, Chan M, Lim J, Lim YT, Tan HC. Pretreatment with intracoronary adenosine reduces the incidence of myonecrosis after non-urgent percutaneous coronary intervention- a prospective randomized study. Eur Heart J. 2007; 28: 19-25.

9. Lee CH, de Feyter P, Serruys PW, Saia F, Lemos PA, Goedhart D, Soares PR, Umans VA, Ciccone, Cortellaro M, Rutsch W, Legrand V. Beneficial effects of fluvastatin following percutaneous coronary intervention in patients presented with unstable versus stable angina. Results from the Lescol Intervention Prevention Study (LIPS). Heart. 2004; 90: 1156-61.

10. Kay J, Chow WH, Chan TM, Lo SK, Kwok OH, Yip A, Fan K, Lee CH, Lam WF. A randomized controlled study on acetylcysteine in preventing acute deterioration of renal function following elective coronary angiogram and intervention. JAMA. 2003; 289: 553-8.

For more publications, click here.