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CHOONG Khuat Siew (Simon)

Nationality
Malaysia
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Description
MBBS(Lon), FRCS(Eng), FRCSEd, MS(Lon), FRCS(Urol)
Consultant Urological Surgeon
Institute of Urology
University College London Hospitals
&
Honorary Consultant Urological Surgeon
Great Ormond Street Hospital for Children
London, UK
 
EDUCATION & QUALIFICATIONS
1989 M.B.B.S. University College Hospital, London.
1994 F.R.C.S.(Eng)
1994 F.R.C.S.Ed
1997 M.S. (University of London)
2000 Hunterian Professorship
2001 F.R.C.S.(Urol)
 
ACHIEVEMENTS
Hunterian Professorship 2000
The Royal College of Surgeons of England
BAUS / BJU International Travelling Fellowship 2001
Pump-priming award, Royal College of Surgeons of England 2003
Grants - St. Peter’s Research Trust - £26,029
The effect of urinary infection on encrustation of urological devices
Funding - Biocompatibles Ltd. - £100,000
Encrustation studies on urological devices based on patented encrustation model
Funding - Cook Urological Ltd. - £15,000
Studies on the effect of infection on encrustation
Best Presenting Team (St. George’s Hospital) - Coliseum London Teaching
Hospital Challenge. Institute of Urology and Nephrology, November 1999
Best podium presentation - 4 th Asian Congress in Urology, Singapore.
Sept 1998. Objective encrustation analysis of currently used ureteric stents.
Choong SKS, Wood S, Whitfield HN.
Best poster awards -14th World Congress of Endourology, Melbourne, Nov 96.
1. Current design faults in ureteric stents.
Choong SKS, Whitfield HN, Petrik A, Nicholas C.
2. The scientific basis of catheter encrustation.
Choong SKS, Fry C, Whitfield HN.
Highlighted presentations at BAUS Annual Meeting, Birmingham 2000
9 th International Symposium on Urolithiasis, Cape Town, Feb 2000.
17 th World Congress on Endourology and SWL, Rhodes Island, Greece, Sept 99.
BAUS Annual Meeting, Glasgow, June 1999
AUA, San Diego, 1998
13 th Congress of European Association of Urology, Barcelona 1998.
15 th World Congress of Endourology, Edinburgh 1997
• Established an encrustation database on existing ureteric stents and urethral catheters and identified novel biomaterials and surface coating which resisted encrustation better than silicone, the current gold standard.
Patented the design of a model to quantify encrustation.
• Determined the optimum period lignocaine gel should be left in the urethra for maximal effect prior to intraurethral manipulation - a prospective, randomised, double-blind study.
• Early multicentre experience of ultra-mini percutaneous nephrolithotomy in the UK.
Clinical Urology Practice Vol 10, Issue 2, 2017
Invited speaker on “Management of ureteric injuries in gynaecological surgery” at Royal College of Obstetricians & Gynaecologists, 2017.
• Percutaneous nephrolithotomy and spina bifida. Complex major surgery? J Endourol. 2018 Mar; 32(3): 205-212
Invited speaker at EULIS meeting, Vienna, September 2017.
Invited to write article on Lasers for endourological use for British Journal of Urology International Knowledge, accepted 2018.
• Presentations at European Association of Urology (EAU) and American Urological Association (AUA) annual meetings 2016, 2017 and 2018.
• Provided UK paediatric kidney stone surgery at Great Ormond Street Hospital for the last10 years
• Invited to contribute endourology videos for British Journal of Urology International Knowledge, 2018.
Introduced and started Super-mini Percutaneous nephrolithotomy (SMP)
operations in UK in adults and children to reduce morbidity & length of stay.
Appointed by the Royal College of Surgeons, England to set up and run the Post graduate PG Cert in Urology module, 2018.
Awarded a commercial grant to develop an in vitro 3-D printing training model for percutaneous nephrolithotomy and endourological surgery, 2018.
Invited to set up paediatric kidney stone service and percutaneous nephrolithotomy operations in Sri Lanka, February 2018.
Started first live surgery Super-Mini PCNL masterclass in UK, April 2019
 
PUBLISHED ABSTRACTS
1. Choong SKS, Whitfield HN. Encrustation model: A new standard for encrustationmeasurement.
13th World Congress on Endourology and ESWL, Jerusalem, Israel. Dec 1995.
 
2. Choong SKS, Whitfield HN. A new model for quantification of encrustation on
polymers, urethral catheters and ureteric stent.
Urological Research Society Annual Scientific Meeting. Guy's Hospital, London.
Jan 1996.
 
3. Choong SKS, Meganathan V, Razack A, Gleeson M, Whitfield HN.
A prospective, randomised, double-blind study to compare lignocaine gel and plain lubricating gel in relieving pain during flexible cystoscopy.
BAUS Edinburgh. June 1996.
 
4. Choong SKS, Whitfield HN. A new methodology of quantifying encrustation using human urine.
British Biofilm Club Meeting, Oxford. July 1996.
 
5. Choong SKS, Fry C, Whitfield HN. The scientific basis of catheter encrustation.
13th Annual Meeting of the Urological Research Society, Brussels. Aug 1996.
 
6. Choong SKS, Whitfield HN, Petrik A, Nicholas C.
Current design faults in ureteric stents. European Urology. Sept 1996.
 
7. Choong SKS, Meganathan V, Nathan MS, Gleeson M, Whitfield HN.
A prospective, randomised, double-blind study to compare lignocaine gel and plain lubricating gel in relieving pain during flexible cystoscopy.
European Urology. Sept 1996.
 
8. Choong SKS, Whitfield HN. A new model for quantification of encrustation on polymers, urethral catheters and ureteric stent. European Urology. Sept 1996.
 
9. Choong SKS, Whitfield HN, Petrik A, Nicholas C.
Current design faults in ureteric stents.
Journal of Endourology. Volume 10, Supplement 1, Nov 1996.
 
10. Choong SKS, Fry C, Whitfield HN. The scientific method of urinary catheter encrustation. Journal of Endourology. Volume 10, Supplement 1, Nov 1996.
 
11. Choong SKS, Meganathan V, Nathan MS, Gleeson M, Whitfield HN.
A prospective, randomised, double-blind study to compare lignocaine gel and plain lubricating gel in relieving pain during flexible cystoscopy.
Journal of Endourology. Volume 10, Supplement 1, Nov 1996.
 
12. Choong SKS, Whitfield HN. A new standard for encrustation measurement.
Journal of Endourology. Volume 10, Supplement 1, Nov 1996.
 
13. Choong SKS and Whitfield NH.
In vivo and in vitro encrustation quantification to identify novel biomaterials for the urinary tract. Journal of Urology Vol 157, No. 4, April 1997.
 
14. Choong SKS, Fry C, Whitfield HN, Craggs M, Shah PJR.
The scientific basis of urinary catheter encrustation.
Journal of Urology Vol 157, No. 4, April 1997.
 
15. Choong SKS, Whitfield HN, Petrik A.
Current design faults in ureteral stents.
Journal of Urology Vol 157, No. 4, April 1997.
 
16. Choong SKS, Fry C, Whitfield HN, Craggs M, Shah PJR.
The chemical basis of urinary catheter encrustation.
British Journal of Urology Vol. 79, Supp. 4, June 1997.
 
17.Choong SKS, Whitfield HN, Wassall M, Denyer S.
The effect of biomaterial surface properties on the encrustation of urological devices. British Journal of Urology Vol. 79, Supp. 4, June 1997.
 
18. Choong SKS, Whitfield HN, Wassall M, Denyer S.
The effect of biomaterial surface properties on encrustation of urological devices.
Journal of Endourology Vol. 11, Supp. 1, September 1997.
 
19. Choong SKS, Whitfield HN.
The validation of a novel in vitro encrustation model and corroboration with in vivo animal studies.
Journal of Endourology Vol. 11, Supp. 1, September 1997.
 
20. Choong SKS, Fry C, Whitfield HN.
The chemical mechanisms underlying encrustation on urinary catheters.
Journal of Endourology Vol. 11, Supp. 1, September 1997.
 
21. Choong SKS, Whitfield HN, Ambrosio L, Parvesio A.
Encrustation-resistant coating for urological devices.
European Urology Vol. 33, Supp. 1, January 1998.
 
22. Choong SKS, Fry C, Whitfield HN
The scientific basis of urethral catheter encrustation.
European Urology Vol. 33, Supp. 1, January 1998.
 
23. Choong SKS, Whitfield HN, Ambrosio L, Parvesio A.
Encrustation-resistant coating for urological devices.
Journal of Urology Vol 159, No.5, 1998
 
24. Wood SJ, Choong SKS, Whitfield HN
Objective encrustation analysis of currently used ureteral stents.
J Endourol Vol 12(S1): S29, Sept 1998
 
25. Wood SJ, Choong SKS, Whitfield HN
Phosphorylcholine: A hydrophilic coating that does not increase encrustation.
J Endourol Vol 12(S1): S33, Sept 1998
 
26. Choong SKS and Whitfield HN
An encrustation-resistant polyurethane for urological use.
J Urol 161(4): 375, May 1999
 
27. Wood S, Choong SKS, Wang JH, Russell J, Whitfield HN
Phosphorylcholine: a coating that is hydrophilic but does not increase encrustation
Br J Urol 83(S4): 129(p35), June 1999
 
28. Choong SKS and Whitfield HN
An encrustation model for identifying encrustation-resistant biomaterials for urological use. J Endourol 1999 13(S1); pA11: BRS3 12
 
29. Wood S, Choong SKS, Wang JH, Russell J, Whitfield HN
Phosphorylcholine: a coating that is hydrophilic but does not increase encrustation
Br J Urol 83(S4): 129(p35), June 1999
 
30. Choong SKS, D Corry, Whitfield HN
Do indwelling urinary catheters empty the bladder?
J Endourol 1999 13(S1); pA76: PS7-1
 
CHAPTER
1. Choong SKS, Whitfield HN, Petrik A. Design faults in currently available ureteric
stents. In Yachia D eds, Stenting the urinary system. Chapter 19. Oxford: ISIS
Medical Media, 1998: 151-159
 
2. Stones. In Shah J eds, Urology Highlights 2004-2005. Health Press Ltd,
Oxfordshire, UK. In Press for Feb 2005
 
3. Design faults in currently available ureteric stents. In Yachia D eds, Stenting the urinary system. Chapter 26. Oxford: ISIS Medical Media, 2004: 151-159
 
4. Stones. In Shah J eds, Urology Highlights 2002-2003. Health Press Ltd,
Oxfordshire, UK.
 
ORIGINAL & PUBLISHED ARTICLES
1. Choong SKS, Whitfield HN. The prevention of urinary infection in Urological surgery. European Urology Update Series. 1996 Volume 4; Number 6.
 
2. Carter S, Choong SKS, Marino A, Sellu D. Can surgical gloves be made thinner without increasing their liability to puncture?
Ann. R. Coll. Surg. Engl. 1996; 78: 186-187. 
 
3. Choong SKS, Meganathan V, Nathan MS, Gleeson M, Whitfield HN.
A prospective, randomised, double-blind study to compare lignocaine gel and plain lubricating gel in relieving pain during flexible cystoscopy.
BJU July 1997; 80: (1): 69-71.
 
4. Hallson PC, Choong SKS, Kasidas GP and Samuell CT
Effects of Tamm-Horsfall protein with normal and reduced sialic acid content upon the crystallisation of calcium phosphate and calcium oxalate in human urine.
Br J Urol 1997; 80: 533-538
 
5. Allen,S, Fry CH,, Choong S, Robertson, WG
Novel inhibitors of calcium oxalate crystallisation.
Urology 68: 14.
 
6. Choong S, Whitfield HN, Wassail M, Denyer S
The effect of biomaterial surface properties on the encrustation of urological devices. Jan 1997.
 
7. Choong S, Fry CH, Whitfield HN, Samuell CT
The scientific basis of urinary catheter encrustation. Jan 1997
 
8. Hallson PC, Choong S, Kasidas GP, Samuel CT
Effects of Tamm-Horsfall protein with normal and reduced sialic acid content upon the crystallisation of calcium phosphate and calcium oxalate in human urine.
Nov 1997.
 
9. Corneillie S, Lan PN, Schacht E, Davies M, Shard A, Green R, Denyer S,
Wassall M, Whitfield H, Choong SKS. Polyethylene glycol-containing polyurethanes for biomedical applications. Polymer International. 1998;
46: 251-259
 
10. Choong S, Gleeson M
Conservative management of a spontaneous rupture of a continent cutaneous urinary diversion. BJU 82(4):592-3. Nov 1998
 
11. Choong S, Hallson PC, Whifield HN, Fry C
The physicochemical basis of urinary catheter encrustation
BJU International 83(7): 770-5. June 1999
 
12. Choong S, Whifield HN
Urinary encrustation of Alloplastic Materials
J Endourol 14(1):19-23. March 2000
 
13. Choong SKS, Wood S, Whitfield HN.
A model to quantify encrustation on ureteric stents, urethral catheters and polymers intended for urological use.
BJU International 2000; 86(4): 414-421
 
14. Choong SKS, Wood S, Fry C, Whitfield HN.
Encrustation of urological devices
Annals of the Royal College of Surgeons of England 2000
 
15. Choong SKS, Wood S, Fry C, Whitfield HN.
Catheter associated UTI and encrustation
Int. J Antimicrobial Agents 2001; 17(4): 305-310
 
16. Choong SKS, Whitfield HN, Duffy P, Cuckow PM, van’t Hoff W, Corry D
The management of stones in children
Urolithiasis 2000 ; 2: 658-659
 
17. Choong SKS, Wood S, Fry C, Whitfield HN.
The influence of urinary biochemistry on catheter blockage
Urolithiasis 2000; 1: 90-91
 
18. Choong SKS, Wood S, Whitfield HN.
Encrustation on urological devices
Urolithiasis 2000; 1: 88-89
 
19. Choong SKS, Walkden M, Kirby RS
The management of intractable haematuria
BJU International 2000; 86(9): 951-959
 
20 . Choong SKS, Whitfield HN, Duffy P, Cuckow PM, van’t Hoff W, Corry D
The management of paediatric urolithiasis
BJU International 2000; 86(7): 857-860
 
21. Biofilms and their role in infections in urology.
BJU Int. 2000 Nov; 86(8):935-41
 
22. Choong S, Emberton M
Acute urinary retention
Br J Urol Int 2000; 85: 186-201
 
23. Frank J, Thomas K, Oliver S, Andrews S, Choong SKS, Taylor R, Emberton M
Couch or crouch ? Examining the prostate: a randomized study comparing the
knee-elbow and the left-lateral position.
BJU International 2001; 87(4):331-3
 
24. Choong S, Wood H, Fry C, Whitfield HN
Catheter associated urinary tract infection and encrustation
International J Antimicrobial Agents 17(4):305-10. May 2001
 
25. Pattison S, Choong S, Michel CC, Bailey MJ
Squamous cell carcinoma of the bladder, intermittent self-catheterisation and urinary tract infection - is there an association?
BJU International 88(4):441. Oct 2001
 
26. Choong SKS, Halls J, Smith G, Carter S St C, Christmas T
The management of urinary incontinence following radical retropubic prostatectomy. Submitted to BJU International 2002
 
27. Choong SKS, Khan MS, Tiptaft RC, Glass J, Goldsmith J.
Multimodal management of urolithiasis in renal transplantation.
Submitted to BJU International 2002
 
28. Coward RJM, Peters CJ, Duffy PG, Corry D, Kellett MJ, Choong S, van’t Hoff W
Epidemiology of paediatric renal stone disease in the UK
Archives of disease in Childhood 88(11): 962-5. Dec 2003
 
29. Singh S, Choong S
Rupture and perforation of urinary reservoirs made from bowel.
World J Urol 22(3): 222-6. Oct 2004
 
30. Choong S, Whitfield HN, Petrik
Design faults in currently available ureteric stents
In book: Stenting the urinary system, second edition, pp 191-199. Jan 2004
 
31. Amiel J, Choong S
Renal stone disease: The urological Perspective
Nephron Clinical Practice 98(2):c54-8. Feb 2004
 
32. Symes A, Shaw G, Corry D, Choong S
Pelvi-calyceal height, a predictor of success when treating lower pole stones with extracorporeal shockwave lithotripsy.
Urological Research 33(4):297-300. Sept 2005
 
33. Symes A, Kalsi V, Rickards D, Allen C, Choong S, Philp T
Dystrophic ureteral calcification associated with Churg-Strauss vasculitis
Urology 64(6): 1231.e9-11. Jan 2005
 
34. Unwin RJ, Capasso G, Robertson WG, Choong S
A guide to renal stone disease
The Practitioner 249(1666):18,20,24. Feb 2005
 
35. Shaw G, Choong S, Fry C
Encrustation of biomaterials in the urinary tract
Urological Research 33(1):17-22. March 2005
 
36. Shaw G, Wah TM, Kellett MJ, Choong S
Management of renal-vein perforation during a challenging percutaneous nephrolithotomy
J Endourol 19(6):722-3. July 2005
 
37. Robertson WG, Allen S, Choong S, Fry CH, Hothersall JS, Patel AB
Heat-shock protein 25 ameliorates calcium oxalate crystal-mediated oxidative stress in renal epithelium.
BJU International 98(5):1094-9. Dec 2006
 
38. Lee G, Longhorn S, Kellett M, Allen C, Rickards D, Choong S, Philp T
Endoscopic management of impassable ureteric strictures: 8 year experience
J Urol 175(4):348-349. April 2006
 
39. Wiseman P, Longhorn S, Philp T, Choong S
Day case rigid and flexible ureterorenoscopy
Eur Urol Supp 6)2): 270-270. March 2007
 
40. Patel A, Choong S, Robertson W, Horthesall JS,
Calcium oxalate monohydrate crystals inhibit the expression of heat shock protein 25 in canine renal distal tubule cells
Eur Urol Supp 5(2):33-33. April 2008
 
41. Allen S, Choong S, Fry CH
The inhibitory effect of bisphosphonates on calcium oxalate crystal formation in vitro.
University College London 2006 Proc Physiol Soc 3, PC17
 
42. Lee G, Longhorn S, Kellett MJ, Allen C, Rickards D, Choong S, Philp T
Thermo-expandable ureteric stent in the management of complex refractory benign ureteric strictures: Long-term efficacy and risk factors associated with complications
Eur Urol Supp 5(2):70-70. April 2006
 
43. Choong S
Recent technological developments in the management of urinary tract stones
Trends in Urology Gynaecology & Sexual Health 12(2):34-37. March 2007
 
44. Sellaturay SV, Davies N, Choong S, Fry CH
The unique use of ammonium ion-selective electrodes in renal staghorn research and the validation of this technique
Conference paper in BJU International Vol 99. June 2007
 
45. Robertson WG, Nair DR, Laing C, Choong S
The role of ‘Metabolic Syndrome” in the formation of uric acid containing stones
Urological Research 36. Jan 2008
 
46. Allen SE, Choong S, Fry CH, Robertson WG
Bisphosphonates: effective inhibitors of calcium oxalate crystallisation
Conference Paper in BJU International. June 2009
 
47. An audit of laser ablation of upper tract transitional cell carcinoma: A safe and effective treatment in low grade disease?
J Endourol 23:A51-A52. Oct 2009
 
48. Use of the holmium laser to treat a urethral stone related to a Urolume stent in a patient with an artificial urinary sphincter.
British J Medical & Surgical Urol 3(1): 42-44. Jan 2010
 
49. Graham S, Nathaniel C, Longhorn S, Philp T, Smith RD, Choong S
Flexible ureteroecopy for lower pole stones - is it effective? One year’s experience in a major stone unit.
British J Medical & Surgical Urology 3(3):126-126. May 2010
 
50. Johri Nikhil, Unwin Robert, Choong SKS
An Update and Practical Guide to Renal Stone Management
Nephron Clin Pract 2010;116:159-171
 
51. Graham S, Gurung P, Longhorn S, Philp T, Smith RD, Choong S
Is endourological management of upper tract TCC the way forward? Experience from a major endourological centre
British J of Medical and Surgical Urology 3(3):123-123. May 2010
 
52. Allen DJ, Longhorn S, Philp T, Smith RD, Choong S
Percutaneous urinary drainage and ureteric stenting in malignant disease
Clinical Oncology 22(9):733-9. Nov 2010
 
53. Williams EL, Bockenhauser, Smeulders N, Barnacle AM, Choong S, Rumsby G, van’t Hoff W
Primary hyperoxalauria type 3 in children with renal calculi
Conference Paper in Archives of Disease in Childhood 96(1). April 2011
 
54. Johri N, Jaeger P, Robertson W, Choong S, Unwin RJ
Renal stone disease
Medicine 39(7):371-377. July 2011
 
55. Allen D, Bycroft J, Philp T, Choong S
Is routine post-operative renal tract stone culture necessary?
Urology 78(3). Sept 2011
 
56. Barnacle AM, Choong S, van’t Hoff W, Smeulders N
Computerised Tomography (CT) is not required for safe and effective
Percutaneous Nephrolithotomy (PCNL) in children
Eur Urol Supp 10(7):508-508. October 2011
 
57. Lalla M, Cabral MJ, Duffy P, Choong S
Portable extracorporeal shockwave lithotripsy in paediatric urolithiasis under general anaesthesia
Eur Urol Supp 10(7):506-507. October 2011
 
58. Ray ER, Allen D, Bycroft J, Allen C, Smith RD, Choong S, Kellett MJ, Philp T
Outcomes of the rendezvous procedure for the management of complex ureteric strictures
Conference Paper in BJU International. June 2012
 
59. Allen SE, Choong S, Fry CH, Robertson WG
Using bisphosphonates to effectively inhibit calcium oxalate crystal aggregation
Eur Urol Supp 12(1)e314-315. March 2013
 
60. Stone biochemical composition but without a stone to analyse.
J Endourol 26:A9. Sept 2012
 
61. Allen S, Choong SKS, Fry C, Robertson W
Bisphosphonates: novel inhibitors of calcium oxalate crystallisation
Submitted to European Urology 2015
 
62. An analysis of factors influencing length of stay after percutaneous nephrolithotomy.
Eur Urol Supp 15(3):e695. March 2016
 
63. Rendezvous procedure to treat complex ureteric discontinuities
J Urol 195(4):e938-939. April 2016
 
64. Peri-operative outcomes of percutaneous stone surgery in patients with urinary diversions.
J Urol 195(4):e260. April 2016
 
65. Early multicentre experience of ultra-mini percutaneous nephrolithotomy in the UK.
Clinical Urology Practice Vol 10, Issue 2, 2017
 
66. The outcomes of ureterolysis during complex rectovaginal endometriosis surgery in stented patients
Eur Urol Supp 17(2):e722. March 2018
 
67. Are post-operative ureteric catheters a safe alternative to short-dwell ureteric stents?
J Urol 199(4):e918-919 April 2018
 
68. Percutaneous nephrolithotomy and Spina Bifida - Complex Major Stone Surgery?
J Endourol 32(3) Jan 2018
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