Sophia Chew Tsong Huey, MBBS, MMed (Anaes.), FANZCA

Senior Consultant
Department of Anaesthesiology
Singapore General Hospital
Outram Rd, 169608, Singapore


Dr. Chew is a Senior Consultant at the Singapore General Hospital, Department of Anaesthesia and Surgical Intensive Care. She is also an Adjunct Assistant Professor at the Yong Loo Lin School of Medicine and the Duke-NUS Graduate Medical School.
Her subspecialty interest is in the field of cardiothoracic anaesthesia and she leads the department efforts in research. She was awarded the Wong Hock Boon –Singapore Medical Association Outstanding Mentor Award in 2013.
Dr. Chew is the Principal Investigator of the Perioperative and Genomic Outcome Study of Cardiac Patients in Singapore. She is currently examining the impact of cardiopulmonary bypass and acute kidney injury and the impact of diabetes mellitus on the outcome of patients undergoing cardiac surgery.

Research Interest

Her research interests include: Diabetes mellitus and outcome in cardiac surgical patients, The association of genetics and diabetes mellitus on acute kidney injury after cardiac surgery, Ethnicity and acute kidney injury in cardiac surgery , Impact of mini CPB and conventional CPB in determining safety outcomes after cardiac surgery, Development of continuous glucose monitoring devices, Improvement of diabetic control in surgical patients, Acute kidney injury and development of end-stage renal disease in cardiac surgical patients, Blood conservation in cardiac surgical patients.

Scientific Activities


• (1997-1998) Awarded the FY 96 HMDP fellowship in cardiac anaesthesia for 12 months, U.S.A. Completed cardiac fellowship program at Duke University Medical Center, Division of Cardiothoracic Anesthesiology, Durham, North Carolina
• (1998) Awarded the runner-up prize on poster presentation “Preliminary report on the association of Apolipoprotein E genotype and renal impairment after CABG surgery” at Dukes Department of Anesthesiology Academic Evening
• SGH QI Project of the year 2009 ( To achieve blood glucose level of between 4 to 8 mmol/l in patients undergoing cardiac surgery )
• (2009) MOH Appreciation Excel Award nominee
• (2009) PS21 Excel Award Nominee
• (2013) Wong Hock Boon Society-Singapore Medical Association Outstanding Mentor Award


• Singapore Society of Anaesthesiologists
• Medical Protection Society


• (1995) Member of social subcommitee for 9th Asean Congress of Anaesthesiologists meeting


1. Chew STH, Tan SS, Ip C, Tan T. A survey of patients knowledge of anaesthesia and perioperative care. Singapore Medical Journal. 1998; 39(9): 399-402.
2. Chew STH, Low TC. Preoperative versus postoperative pethidine for extraction of impacted third molars. Annals, Academy of Medicine. 1997; 26: 426-429.
3. Garduno C, Chew S, Forbess J, Smith PK, Grocott HP. Persistent left superior vena cava and partial anomalous pulmonary venous connection: incidental diagnosis by transeophageal echocardiography during coronary bypass surgery. J Am Soc Echocardiogr. 1999; 12: 682-685.
4. Chew S. Renal transplant- An Anaesthetic Perspective. Proceedings. 1997; 6(3): 52-55.
5. Chew STH, Conlon PJ, White WD, et al. Preliminary report on the association of apolipoprotein E genotype with renal impairment after coronary bypass surgery. Anesthesiology. 2000; 93: 325-331.
6. Koh LKD, Ip-Yam C, Kong CF, Chew S. Evaluation of a modified grading system for direct laryngoscopy. our preliminary experience in Singapore. SGH Proceedings. 2000. 9(2): 79-82.
7. Kong CF, Chew STH, Ip-Yam PC. Intravenous opioids reduce airway irritation during induction of anaesthesia with desflurane in adults. Br J Anaesth. 2000; 84: 364–367.
8. McCreath BJ, Swaminathan M, Booth VJ, Chew STH et al. Mitral valve surgery and renal injury . Port access versus median sternotomy. Annals Thorac Surg. 2003; 75: 812-819
9. Chew STH. Recovery following tonsillectomy. A comparison between tramadol and morphine for analgesia . Singapore Medical Journal. 2003; 44(6): 296- 298
10. Soh CR, Pietrobon R, Freiberger J, et al. Hyperbaric oxygen therapy in necrotising soft-tissue infections – A study of patients in the United States Nationwide Inpatient Sample. Intensive Care Med. 2012; 38(7): 1143-1151. doi: 10.1007/s00134-012-2558-4.
11. Chew STH, Mar WMT, Lian T. Association of ethnicity and acute kidney injury after cardiac surgery in a South East Asian Population. British Journal of Anaesthesia. 2013; 110(3): 397-401. doi: 10.1093/bja/aes415.
12. Ng R, Chew STH, Weiling L, Kah TL. Identification of Modifiable Risk Factors for Acute Kidney Injury After Coronary Artery Bypass Graft Surgery in an Asian Population. JTCVS. 2013; 13: 833R1. doi: 10.1016/j.jtcvs.2013.09.040.
13. Chew STH, Kah TL. Reply to the editor on association of ethnicity and acute kidney injury after cardiac surgery in a South east Asian population. British journal of Anaesthesia. 2013. doi: 10.1093/bja/aes415.
14. Ng R, Chew STH, Weiling L, Kah TL. Reply to Identification of Modifiable Risk Factors for Acute Kidney Injury After Coronary Artery Bypass Graft Surgery in an Asian Population. JTCVS.2014. doi: 10.1016/j.jtcvs.2013.09.040.
15. Ng R, Chew STH, Weiling L, Kah TL. Persistent Kidney Injury at Hospital discharge after cardiac surgery with cardiopulmonary bypass in patients with normal preoperative serum creatinine and normal estimated glomerular filtration rate. JCVA.2014. doi: 10.1053/j.jvca.2014.05.007.
16. Ng R, Oo AM, Weiling L, Tan TE, Kah TL, Chew STH. Changing Glucose Control target and Risk of Surgical Site Infection in a South East Asian population. JTCVS. 2014.