London Urology Service

Peer-Reviewed Research

Leye Ajayi’s extensive research in the field of urology has been published widely in peer-reviewed journals. As the course director of national and international masterclasses in complex stone diseases, he utilises his membership of the European Association of Urology Section of Uro-Technology (ESUT) to regularly attend international meetings and courses, ensuring he stays fully updated and at the forefront of advances in urology.

Bibliography Peer Review Publications

Abstracts published

  • P0895-Predictors of stone-free rate after Supine Percutaneous Nephrolithotomy (S-PCNL) with or without Endoscopic Combined Intrarenal Surgery (ECIRS): A nomogram to guide preoperative counselling and surgical planning.

    Basile G. Pauwaert K. Allen D, Logrado L. Fonseka T, Dionisio F. Goode A., Yu D., Goyal A, Ellis G. Singh P. Kucheria R,, Ajayi L European Urology, Volume 89, Supplement 1, March 2026, Pages S1-S2

  • P0576-New insights aquablation procedures: Outcomes in selected patients and comparative trials. Aquablation real-world hemostasis evolution from 100,000 patients.

    itar M., Helfand B., Ajayi L., Quintas J.J., Liatsikos E., Barber N., Zorn K.C., Chughtai B., Bhojani N., Kaplan S., McVary K., Elterman D.  European Urology, Volume 89, Supplement 1, March 2026, Pages S1-S2

  • P0249 Endoscopic management of iatrogenic ureteral strictures: Risk factors for treatment failure

    Moretto S., Saita A., Scoffone C.M., Talso M., Somani B.K., Traxer O., Angerri O., Liatsikos E., Ulvik Y., Cracco C.M., De Coninck V., Nagele U., Ferretti S., Kronenberg P., Keller E.X.,  Carmignani L., Pietropaolo A., Perez-Fentes D., Osther P.J., Goumas I.K., Herrmann T.R.W., Ajayi L., Tailly T., Corrales M., Acquati P., Buffi N.M European Urology, Volume 89, Supplement 1, March 2026, Pages S1-S2

  • UP140 -Comprehensive assessment and predictors of perioperative complications after supine Percutaneous Nephrolithotomy (s-PCNL): A single-centre experience

    Bhat S.1, Basile G.1, Ongaro L.1, Fonseka T.1, Logrado L.1, Dionisio F.1, Allen D.1, Goyal A.1, Goode A.2, Yu D.2, Ajayi L.1  European Urology Open ScienceVolume 81, Supplement 2, November 2025, Page S300

  • MP65-Risk factors for iatrogenic ureteral strictures after endoscopic stone surgery: Insights from a multicenter study

    Moretto S., Saita A., Scoffone C.M., Talso M., Somani B.K., Traxer O., Angerri O., Liatsikos E., Ulvik Y., Cracco C.M., De Coninck V., Nagele U., Ferretti S., Kronenberg P., Keller E.X.,  Carmignani L., Pietropaolo A., Perez-Fentes D., Osther P.J., Goumas I.K., Herrmann T.R.W., Ajayi L., Tailly T., Corrales M., Acquati P., Buffi N.M European Urology Open ScienceVolume 81, Supplement 2, November 2025, Pages S86-S87

  • MP39-Endoscopic combined intrarenal surgery (ECIRS) versus supine percutaneous nephrolithotomy (S-PCNL): A propensity score matched study of surgical outcomes and complication

    Fonseka T.1, Basile G.1, Ongaro L.1, Bhat S.1, Logrado L.1, Dionisio F.1, Allen D.1, Singh P.1, Goyal A.1, Ellis G.1, Kucheria R.1, Goode A.2, Yu D.2, Ajayi L.1 European Urology Open ScienceVolume 81, Supplement 2, November 2025, Page S50

  • MP38-Surgical outcomes and predictors of less than 24 hours hospital stay after percutaneous nephrolithotomy for stones treatment: A single-center experience guiding preoperative patients counselling

    Ongaro L.1, Basile G.1, Bhat S.1, Fonseka T.1, Logrado L.1, Dionisio F.1, Ellis G.1, Kucheria R.1, Goyal A.1, Allen D.1, Goode A.2, Yu D.2, Ajayi L.1 European Urology Open ScienceVolume 81, Supplement 2, November 2025, Page S49

  • Endoscopic combined intrarenal surgery (ECIRS) versus supine percutaneous nephrolithotomy (S-PCNL): a propensity score matched study of surgical outcomes and complications

    T. Fonseka, G. Basile L. Ongaro, S. Bhat,  L. Logrado, F. Dionisio D. Allen1, P. Singh, A. Goyal, G. Ellis, R. Kucheria, A. Goode, D. Yu, L. AjayiJournal of Urology, volume 211, issue 5S (2024).

  • Is primary ureteroscopy more cost-effective than ureteral stenting for obstructing ureteral calculi?

    Radha SehgalYasmin Abu-GhanemChristina FontaineLuke ForsterRajesh KucheriaDarrell AllenAnuj Goyal, Gidon EllisParas Singh, and Leye AjayiJournal of Urology, Vol. 206, No. 3S, Supplement 3, 1st Sept 2021

  • The Use of CT Urography to Diagnose Upper Tract Urothelial Carcinomas (UTUC); Managing Surgical Resources During The COVID-19 Pandemic

    Wong, S , Sehgal, R,  Birks, T,  Allen, D,  Goyal, A,  Kucheria, R,  Ajayi, L, Ellis, GBritish Journal of Surgery, volume 108, issue Supplement_6 (2021).

  • What part does ureteroscopy play in the diagnostic pathway of upper tract urothelial carcinoma? A two-year review in a high volume institution.

    Sehgal, Radha | Wong, Shifa | Abu-Ghanem, Yasmin | Birks, Theodore | Kucheria, Rajesh | Allen, Darrell | Goyal, Anuj | Singh, Paras | Ajayi, Leye | Ellis, GidonJournal of Urology, volume 206, issue Supplement 3 (2021).

  • What part does ureteroscopy play in the diagnostic pathway of upper tract urothelial carcinoma? A two-year review in a high volume institution.

    Sehgal, R. | Wong, S. | Abu-Ghanem, Y. | Birks, T. | Kucheria, R. | Allen, D. | Goyal, A. | Singh, P. | Ajayi, L. | Ellis, G.European Urology, volume 79 (2021).

  • Percutaneous nephrolithotomy in the transplant kidney – a prospective 20 year multicentre experience

    Fontaine C¹, Birks T.¹, Ferreiro C², Torrecilla C²., Vigués F², Angerri O³, Emiliani E³, Breda A³, Ajayi L¹.
    ¹Royal Free London NHS, London, ²Bellvitge University Hospital, Barcelona, Spain, ³Fundació Puigvert Hospital, Barcelona, Spain.Eur Urol Open Sci 2020;19(Suppl 2):e1037

  • Supine percutaneous nephrolithotomy: The ideal treatment strategy for the management of the heavily encrusted forgotten stent

    Fontaine C. , Birks T. , Picirilli A. , Pindoria N. , Ellis G. , Singh P. , Goyal A. , Kucheria R. , Emiliani E. , Allen D. , Ajayi L.Eur Urol Open Sci 2020;19(Suppl 1):e98

  • Supine percutaneous nephrolithtomy for Staghorn calculi prospectively recorded experience in a single tertiary referral endourology unit 

    C. Fontaine, A. Goyal, K. Kucheria, D. Allen, L. AjayiEur Urol Open Sci 2020;19(Suppl 1):e99

  • Computed tomography urography (CTU) findings as a predictor of the presence and grade of upper tract urothelial cancer (UTUC)

    R. Sehgal, T. Birks, N. Pindoria, L. Grant, L. Ajayi, G. Ellis  Eur Urol Open Sci 2020;19(Suppl 1): e100–e101

  • The vital role of diagnostic ureteroscopy in the diagnosis of upper tract urothelial carcinoma: Review of a high-volume centre over a 12-month period

    R. Sehgal, T. Birks, N. Pindoria, R. Kucheria, D. Allen, A. Goyal, P. Singh, L. Ajayi, G. Ellis. Eur Urol Open Sci 2020;19(Suppl 1): e102

  • Upper pole renal puncture in supine percutaneous nephrolithotomy – 9 year experience from a single tertiary stone unit

    Moghul M. , Withington J. , Goyal A. , Kucheria R. , Allen D. , Ajayi L.European Urology Supplement 18(1):e2033-e2034 · March 2019

  • Supine percutaneous nephrolithotomy in the obese patient

    J Withington, Moghul M, Goyal A. , Kucheria R. , Allen D. , Ajayi L.European Urology Supplement – 18(1):e2036 · March 2019

  • Effects of medically expulsive therapy MET on Spontaneous stone passage (SSP) in patients presenting with acute ureteric colic

    Taimur Shah, Leye Ajayi et alJournal of Urology 199(4):e387-e388 · April 2018

  • Medically expulsive therapy MET has no benefit in improving_ spontaneous stone passage SSP in patients presenting with acute ureteric colic Results from the MIMIC study.

    Taimur Shah, Leye Ajayi et al                                        European Urology Supplement – 18(1):e2036 · March 2018

  • Supine Percutaneous nephrolithtomy for Staghorn calculi prospectively recorded experience in a single tertiary referral endourology unit>

    John Withington*, David Curry, Sarah Tang, Asheesh Kaul, Helena Gresty, Anthony Goode, Nick Woodward, Dominic Yu, Anuj Goyal, Rajesh Kucheria, Darrell Allen, Leye Ajayi, London, UK. The  Journal of urology. Vol. 197, No. 4S, Supplement, Monday, May 15, 2017

  • Percutaneous Nephrolithotomy in the Extended Lithotomy Position –
    A New Approach to an Old Problem?

    J Bycroft, S Pridgeon, D Yu, N Woodward, A Goode and L AjayiBJUi June 2010- Volume 106, Issue Supplement s1Pages v–vi, 1–66 Abstract 167

  • “Pass the ball”-simultaneous antegrade and retrograde endoscopic fragmentation of stones in the extended lithotomy position for percutaneous nephrolithotomy.

    Leye Ajayi, M. Hussain, Dominic Yu, Nick Woodward, Neil Davis, Antony GoodeEuropean Urology Association. Stockholm 17th -21 March 2009

  • Our initial experience with extended lithotomy position for percutaneous nephrolithotomy.

    Leye Ajayi, M. Hussain, Dominic Yu, Nick Woodward, Neil Davis, Anthony Goode.Urolithiasis Research, 2008

  • The true value of Hexvix® photodynamic diagnosis following intravesical Bacilli Calmette Guerin treatment for superficial bladder cancer.

    Eleanor Ray, Kay Thomas, Leye Ajayi, Kathryn Chatterton, M S Khan, Tim O’Brien.American Urologic Association Annual Meeting. California May 19-24, 2007.

  • Initial experience using the photosensitizer Hexvix® in photodynamic assisted resection of superficial bladder cancer.

    E Ray, L Ajayi, K Thomas, K Chatterton, S Khan, TS O’BrienJournal of Endourology. August 15, 2006, 20(supplement 1): A97-A298.

  • Initial experience using the photosensitizer Hexvix® in photodynamic assisted resection of superficial bladder cancer.

    E Ray, L Ajayi, K Thomas, K Chatterton, S Khan, TS O’BrienBJUi 2006 vol 97 suppl 5 ; page 8 abstract  04

  • A prospective audit of flexible ureterenoscopy and holmium laser lithotripsy for treatment of Intrarenal Calculi.

    J Henderson, L Ajayi, K Thomas, P Dasgupta , R. Tiptaft, J GlassEuropean Urology Supplements Volume 5, Issue 2, April 2006, Page 108

  • A prospective comparison of flexible ureterenoscopy and holmium laser versus electrohydrolic lithotripsy for ESWL resistant upper tract calculi.

    Ajayi LA, Henderson JR, Thomas K, Dasgupta P, Glass JMG, Tiptaft RC.BJUi 2005 vol 95 suppl 5 ; page 35 abstract  P14

  • The use of Ureteral access sheaths and flexible ureteroscopy; A marriage made in Heaven?

    L.Ajayi, J.Allan, B.Montgomery, H.Naerger, E.Palfrey. BAUS Glasgow 2002.BJUi 2002 vol 90 suppl 1;  page 52 abstract P098.

  • Use of Microsatellite markers as Genetic markers to identify risks of tumour progression.

    Ajayi LA, Stewart LMD, Roberts KG, Snary D, Kaisary AV.BJU 2000 vol 86; 3: Page 392