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Clinical Appointments

  • Consultant Department of Cardiothoracic Surgery National Heart Centre SingaporeNational Heart Centre Singapore
  • Consultant Cardiothoracic Surgery Service KK Women's and Children's HospitalKK Women's and Children's Hospital


​​​Dr Yap Kok Hooi is a Consultant from Department of Cardiothoracic Sugery at National Heart Centre Singapore (NHCS) and KK Women's and Children's Hospital (KKH).

He graduated from Dundee Medical School, United Kingdom in 2009, and subsequently completed his Foundation Year and Core Surgical Training in the UK. He then joined the Cardiothoracic Surgical Residency Training Programme in National Heart Centre Singapore. Along his clinical career, he also successfully obtained MSc Degree with Cardiff University, UK and has published numerous academic publications.

Dr Yap has particular interest in cardiothoracic surgical research and congenital heart surgery.


  • MBChB Dundee Medical School, UK
  • MSc, Cardiff University School of Medicine
  • MRCS, Royal College of Surgeons of Edinburgh
  • FRCS (Cardiothoracic Surgery, Royal College of Surgeons of Edinburgh)

Professional Appointments and Committee Memberships

  • ​Consultant, Department of Cardiothoracic Surgery, National Heart Centre Singapore, May 2023 – Present
  • Associate Consultant, Department of Cardiothoracic Surgery, National Heart Centre Singapore, March 2021 – April 2023
  • Clinical Instructor, Duke-NUS Medical School, July 2021 - Present
  • Fellow of Academy of Medicine, Singapore
  • Member of Heart Failure Society Singapore


  • ​SingHealth Associate in Education, SingHealth Academy, Singapore, 2021
  • Outstanding Resident Award (RiSE) Cardiothoracic Surgery, SingHealth, Singapore, 2020
  • Singapore Health Quality Service Gold Award, SingHealth, Singapore, 2017
  • Outstanding Resident Award (RiSE) Cardiothoracic Surgery, SingHealth, Singapore, 2017
  • Singapore Health Quality Service Silver Award, SingHealth, Singapore, 2016
  • North Western Deanery Core Surgical Training Gold Award, Core Surgery, NHS, UK, 2013
  • President’s Prize (Best poster), Royal Society of Medicine Meeting, RSM, UK, 2012
  • North Western Deanery Core Surgical Training Gold Award, NHS, UK, 2012

Research Interests


  • Combination of slide tracheoplasty and side to side bronchoplasty for complex congenital tracheobronchial stenosis. Chan J, Yap KH, Teoh OH, Nakao M. In press ICVTS. Mar 2021.
  • Modified ultrafiltration reduces post-operative blood loss and transfusions in adult cardiac surgery: a meta-analysis of randomized controlled trials. Low ZK, Fei Gao, K Sin, Yap KH. In press. ICVTS. Dec 2020.
  • Congenital diaphragmatic hernia repair in patients requiring extracorporeal membrane oxygenation: are outcomes better with repair with ECMO or after decannulation? Low ZK, Tan SM, Nakao M, Yap KH. In press. ICVTS. Nov 2020.
  • Congenital left atrial appendage aneurysm with unexpected aneurysm with unexpected course if left anterior descending artery. Low ZK, Yap KH, Fortier MV, Nakao M. ICVTS. Oct 2020.
  • Does concurrent use of intra-aortic balloon pumps improve survival in patients with cardiogenic shock requiring venoarterial extracorporeal membrane oxygenation? Wang D, Chao V, Yap KH, Tan TE. Interact CardioVasc Thorac Surg 2020; 30 (2): 312-315. Oct 2019.
  • Homemade Candy-Plug Technique with Cook Zenith Alpha Thoracic Stent for Flase Lumen Distal Occlusion in a Complicated Chronic Type B Aortic Dissection with Rapid Growth. Yap KH, Tham YC, Ch’ng JK, Victor Chao, Irani F, Chong TT, Tay KH. Journal of Endovascular Therapy. Apr 2019; 26 (5): 732-735.
  • Large thrombosed Right Coronary Artery Aneurysm Mimicking Right Atrial Mass. Tham YC, Yap KH, Ch’ng JK. J Cardiovasc Imaging. 2019. Jan; 27(1): 66-67
  • Heartware Implantation with Outflow Graft Anastomosis to the Descending Aorta via Left Thoracotomy. Chua KC, Yap KH, Tham YC, Cumaraswamy S, Tan TE. Accepted in JSM Cardiothoracic Surgery (in press). May 2017.
  • The safe volume for chest drain removal following pulmonary resection. Yap KH, Soon JL, Ong BH, Loh YJ. Interact Csrdiovasc Thorac Surg. Apr 2017; 25 (5): 822-826
  • A Prospective randomised study comparing the current surgical informed consent form with a modified, pre-printed consent form. Khrisnamoorthy B, Yap KH, Critchley WR, Nair J, Devan N, Barnard J, Caress A, Waterworth PD. Health Care Education. DOI: 10.15761/HEC.1000105. Jan 2016.
  • Does pre-operative statin therapy prevent post-operative atrial fibrillation in patients undergoing cardiac surgery? Goh SL, Yap KH, Chua KC, Chao V. 2015; 20(3): 422-8. Dec 2014.
  • The predictive risk factors for bowel ischemia after cardiac surgery: The summary. Yap KH, Chua KC, Lim SL, Sin YK. Interact Cardiovasc Thorac Surg. Feb 2014;19(3):494-8
  • Carney Complex: Fourth time excision of recurrent atrial myxoma via left thoracotomy. Azzam R, Abdelbar A, Yap KH, Abousteit. BMJ Case Rep. 2014. 30;2014. Sep 2013
  • Review: Transcranial Doppler Ultrasound in Critical Care. Naqvi J, Yap KH, Ahmad G, Ghosh J. International Journal of Vascular Medicine, 2013; Aug 2013: 629378. Epub 2013.
  • Isolated pulmonary infective endocarditis with septic pulmonary embolism complicating a right ventricular outflow tract obstruction: scarce and devious presentation. Abdelbar A, Azzam R, Yap KH, Abousteit A. Case Reports in Surgery, July 2013:1-3
  • Is cryoanalgesia effective for post-thoracotomy pain? Khanbhai M, Yap KH, Mohammed S, Dunning J. Interact Cardiovasc Thorac Surg, 2014; 18 (2): 202-9. May 2013.
  • Dissection of the pulmonary ligament during upper lobectomy: Is it necessary? Khanbhai M, Dunning J, Yap KH, Rammohan KS. Interact Cardiovasc Thorac Surg. Jan 2013; 17 (2): 403-6
  • Intercostal artery aneurysm with coarctation of the aorta. Lee PT, Yap KH, McBride K, Danton M, Fairbairn. World Journal for Paediatric and Congenital Heart Surgery. Jan 2013 4:128-129.
  • Late Presentation of Congenital Diaphramatic Hernia after a Diagnostic Laparpscopic Surgery. Yap KH, Jones MT. Journal of Cardiothoracic Surgery. Jan 2013, 8:8.
  • Cardiothoracic Care and Critical Care: Chest & Neck Swelling Post Pleural Catheter Insertion. Yap KH, Lin WC, Lee PT, Krysiak P. Core Surgery Journal, Nov 2012 2(6),34-28.
  • Aortic Valve Replacement: Is porcine of bovine valve better? Yap KH, Murphy R, Devbhandari M, Venkateswaran R. Interact Cardiovasc Thorac Surg. 2013; 16(3): 361-73. Oct 2012.
  • Incidental Finding of a Left-over Guide wire on a Positron Emission Tomograph. Yap KH, PT Lee, Buch M. Rammohan KS. Nuclear Medicine and Molecular Imagaing. Sep 2012 46 (4): 320-321.
  • Case Presentation: Intercostal Artery Aneurysm with Coarctation of Aorta (abstract). Lee PT, Yap KH, McBride K, Danton M, Fairbairn. International Angiology Journal. July 2012; 31 (Supp 1-3): 111-113.
  • Vascular Disease. Takotsubo Cardiomyopathy: The Broken Heart  Syndrome. Yap KH, Lang N.  Foundation Years Journal. Jan 2011;5(1): 70.
  • Neurology: Management and Investigation of Coma on a Post-operative Patient. Yap KH, Clark M. Foundation Years Journal. Mar 2010; 4(3): 36-3

Research Trials