Cinical Appointments

Dr. Ngan received his medical degree at the University of Hong Kong. Thereafter, he was trained in General Surgery at the University of Hong Kong under Prof. G.B. Ong and Prof. John Wong. In 1988, he was appointed Lectureship in General Surgery in the University. Dr. Ngan then received his urology training at the University of Illinois . He received American Foundation of Urologic Disease Fellowship in 1993-1995 and served as an American Urological Association Scholar. In these two years, he studied prostate proliferation and differentiation with Dr. Chung Lee at Northwestern University . He is currently a Clinical instructor in pediatric urology with Dr. Michael Mitchell at the University of Washington in Seattle. Besides his clinical and research work, Dr. Ngan is also authoring the Exstrophy Home Page and ONLINE Pediatric Urology.

Academic Awards

• American Urological Association (A.U.A.) / American Foundation of Urologic Disease (A.F.U.D.) / Schering Research Scholar (1993-95)
• NIH Travel Award, Society of Basic Urologic Research (1993)
• Traveling Fellowship, International Symposium on Prostate Biology, NIDDK, National Institute of Health (1992)
• Charles Huggins Prize, First Prize in Clinical Research, Chicago Urological Society (1992)
• Outstanding Resident of the Year, Division of Urology, Department of Surgery, Cook County Hospital, Chicago (1992)
• Research First Prize, Hong Kong Medical Association, Hong Kong (1982)

Publications and Presentations

1. An Argument for Single-staged Closure of Exstrophy-epispadias Complex. JHK Ngan, MC Carr, ME Mitchell. Western Section Meeting of the American Urological Association, San Diego, CA, 1996.
2. Use of Dorsal Plate Incision in Complex Hypospadias Repair. JHK Ngan MC Carr, ME Mitchell. Western Section Meeting of the American Urological Association, San Diego, CA, 1996.
3. Factors Contributing to Continence in Classic Bladder Exstrophy. JHK Ngan, MC Carr, J Ansell, ME Mitchell. Journal of Urology 155(5),483A.
4. Prospective Double-Blind Placebo-Controlled Randomized Trial on the Use of Ranitidine in Preventing Postoperative Gastroduodenal Complications in High-Risk Neurosurgical Patients. KH Chan, ECS Lai, H Tuen, JHK Ngan, F Mok, YW Fan, CF Fung, WC Yu. Journal of Neurosurgery 82:413-417, 1995.
5. Scientific Basis of Antral Gastrocystoplasty. JHK Ngan Pan-Pacific Surgical Association Meeting, Hong Kong, 1994.
6. Effect of Long Term Steroid Deprivation on Response of Androgen Receptor Protein to Dihydrotestosterone in LNCaP Cells. JHK Ngan, G Prins, C Lee, J Sensibar, L Birch, Z Wu, R Sharifi. Society of Basic Urologic Research, Houston, TX, 1993.
7. Long Term Results of Antral Gastrocystoplasty. JHK Ngan, JLT Lau, STK Lim, KW Chan, PC Tam, MK Li. Journal of Urology 149,731-734, 1993.
8. The Influence of Previous Transurethral Resection for the Prostate on the Outcome of Subsequent Metastatic Prostate Cancer. JHK Ngan, M Lee, R Sharifi. Journal of Endourology 6(4):S140, 1992.
9. Medical Management of Benign Prostatic Hyperplasia with Terazocin. M Lee, C Moorman, JHK Ngan, R Sharifi. Journal of Endourology 6(4):S138, 1992.
10. Successful Reactivation of Androgen Responsive Human Prostate Cancer Cell Line - LNCaP after Long Term Steroid Deprivation. JHK Ngan, M Lee, R Sharifi. International Symposium on Biology of Prostate Growth, Bethesda, MD, 1992.
11. Harmful High Amplitude Phasic Contractions encountered years after Antral Gastrocystoplasty: A 15 year review. JHK Ngan, MK Li, KK Wong, P Chow, STK Lim. Journal of Urology 145:319A, 1991.
12. Comparison between Casodex and Castration for Advanced Prostate Cancer A Preliminary Report. R Sharifi, JHK Ngan, M Lee. Beijing International Society of Urology Meeting, Beijing, 1991.
13. Effect of Long Term Steroid Deprivation in Androgen Responsive Human Prostate Cancer Cell Line LNCaP. JHK Ngan, R Sharifi. Society for Basic Urologic Research, Rochester, Minnesota, 1991.
14. History of Tranurethral Resection of the Prostate: A Bad Prognostic Indicator for Advanced Prostate Cancer? J Ngan, M Lee, R. Sharifi. Proc. Inst. Med. Chgo. Vol. 44, 1991.
15. A Prospective Study on Fish Bone Ingestion: Experience of 358 Patients. JHK Ngan, PJ Fok, ECS Lai, FJ Branicki, J Wong. Annals of Surgery 211(4), April,1990.
16. Factors Influencing Development of Gastrointestinal Complication after Neurosurgery: Results of Multivariate Analysis. KH Chan, KS Mann, ECS Lai, JHK Ngan, H Tuen, CP Yue. Neurosurgery 25(3), Dec.,1989.
17. Renal Damage in Extracorporeal Piezoelectric Lithotripsy. JHK Ngan, MK Li, KK Wong, LH Chi. Journal of Urology 142(4)Pt.2, April,1989.

To Contact Dr. Ngan

• Telephone Number: (206) 526-2100 Ext. 1908
• Fax Number: (206) 526-3925
• E-Mail address: jngan@chmc.org
• Mailstop: CH-78
• Mailing address: Children's Hospital and Medical Center/
  4800 Sandpoint Way N.E./ P.O. Box 5371, CH-78/
  Seattle WA 98105-0371 USA

To learn more about the Division of Urology, click on any of the following topics:

• Division of Urology Home Page
• Exstrophy Center of Excellence
• ONLINE Pediatric Urology

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