Miss Sian Allen

Tel: 0203 447 9179
Fax: 0203 447 9303
Email: uclh.Referrals.Stones@nhs.net

University College Hospital at Westmoreland Street


Professional background

Miss Allen graduated from Bristol University in 1998 where she completed her house jobs. After spending some time at Cambridge University, demonstrating anatomy, she returned to London for Basic Surgical Training. She was awarded an MD research degree in stone disease from UCL and went on to Specialist Urological Training on the North Central Thames rotation. Much of her urology training has been undertaken at UCH allowing her to acquire broad experience in the complex urological cases treated here.

She has a sub-specialty interest in Stones and EndoUrology, specialising in complex surgery on patients with urinary stones and ureteric injuries.

Other roles she is actively involved with include being part of the ‘UCLH Futures’ Transformation Team as a Clinical Secondee, a Faculty Member & Examiner for the FRCS Urol Revision Course as well as a Faculty Member for our in-house PCNL & Ureteroscopy Masterclasses. She also has a personal interest in innovation and has recently been granted a formal patent for a safety-based invention.

Research interests

Miss Allen was awarded an MD Research degree from UCL for laboratory based research entitled 'Physico-chemical factors influencing calcium oxalate crystallisation in the urinary tract'. During this time, she also gained a Research Fellowship from the Royal College of Surgeons of England.

She continues to hold a firm interest in stone disease and is currently leading a project on stone culture media and their respective microbiological yields.


Useful Urological parameters from the neonate to the adolescent

Allen SE, Green JSA. Journal of Clinical Urology 2015, Vol.8(3) 166-171

Page kidney phenomenon presenting as acute renal failure after partial nephrectomy: a case report and review of the literature

John J, Allen SE, Perry M, Patel HR, O'Brien T. Urol Int. 2008;80(4):440-3. Epub 2008 Jun 27. Review.

Inhibiting the growth of urinary stones

Allen SE. The Royal College of Surgeons of England Surgical Research Report 2008-2009 p.10

Trans-obturator tape for incontinence: a 3-year follow-up

Al-Singary W, Shergill IS, Allen SE, John JA, Arya M, Patel HR. Urol Int. 2007;78(3):198-201

The increased risk of urinary stone disease in betel quid chewers

Allen SE, Singh S, Robertson WG. Urol Res. 2006 Mar 14

Stomal complications of ileal conduits are significantly higher when formed in women with intractable urinary incontinence

Wood DN, Allen SE, Hussain M, Greenwell TJ, Shah PJ. J. Urol 2004 Dec; 172(6 Pt 1): 2300-3

The morbidity of buccal mucosal graft harvest for urethroplasty and the effect of non-closure of the graft harvest site on post-operative pain

Wood DN, Allen SE, Andrich DE, Greenwell TJ, Mundy AR. J. Urol 2004 Aug; 172(2):580-3

Complications of the longstanding ileal conduit

Wood DN, Allen SE, Greenwell TG, Shah PJR. BJU Int 2003: 91 Supp 2: (P126)

Ileal Conduit – Friend or Foe?

Allen SE, Greenwell TJ. Urology News. May 2003

Testicular seminoma presenting 22 years after treatment for extra-gonadal germ-cell tumour

Wazait HD, Dudderidge T, Allen SE, Patel HR, Miller RA. Scand J Urol Nephrol 2002; 36(5):387-8

Nurse practitioners improve patient non-attendance rates

Scott MA, Allen SE, Bamford A, Ingham Clark CL. Journal Royal Society of Medicine 2002; 95:448-449

GMC/GDC number: 4586386