- Upper Tract Urothelial Cell Carcinoma: Ureteroscopic Management of Multifocal Low Grade Disease. Soc. Int. Urol. Glasgow, Scotland. October 15, 2014.
- Proximal impacted Ureteral Stone: Ureteroscopic Treatment. Soc. Int. Urol. Glasgow, Scotland. October 15, 2014.
- Laparoscopic Repair of Large Renal Artery Aneurysm Secondary to FMD and Associated with Renal Malignancy. SVS 2013. FIRST PRIZE WINNER.
- Small Diameter, Digital Flexible Ureteroscopy: Initial Experience. Videourology. Turin, Italy. July 8, 2011.
- Laparoscopic Robotically Assisted Ileal Ureter Substitution Post Ureteral Trauma. Videourology. Turin, Italy. July 7, 2011.
- Laparoscopic Boari Flap Repair Performed For Ureteral Injury. 28th World Congress of Endourology. Chicago, Illinois. Sept 1-4, 2010.
- Laparoscopic Retroperitnoneal Partial Nephrectomy. 28th World Congress of Endourology. Chicago, Illinois. Sept 1-4, 2010.
- Laparoscopic Ureteral Repair with Boari Flap. Video Urology Annual Meeting. Egypt. March 2010.
- Laparoscopic Partial Nephrectomy. Video Urology Annual Meeting. Egypt. March 2010.
- Endoluminal Ultrasound of the Ureter. Video American Urological Association Annual Meeting. Las Vegas, Nevada. April 1995.
- Endoluminal Ultrasound of the Ureter. Video Urology Annual Meeting. Athens, Greece. June 1994.
- Application of a Magnifying Cystoscopic Telescope. Video Urology Annual Meeting. Athens, Greece. June 1994.
- Small Diameter Flexible, Actively Deflectable Ureteroscopy. Video Urology Annual Meeting. Athens, Greece. June 1994.
- Laparoscopic Nephrectomy: A New Surgical Technique in a Selected Patient Population. American Urological Association Annual Meeting. San Antonio, Texas. May 1993.
- Actively Deflectable, Flexible Cystoscopy: No Longer Solely a Diagnostic Instrument. American Urological Association Annual Meeting. San Antonio, Texas. May 1993.
- Miniature Pediatric Cystoscope with Fiberoptics. American Urological Association Annual Meeting. San Antonio, Texas. May 1993.
- Actively Deflectable, Flexible Cystoscopy: No Longer Solely a Diagnostic Instrument. 4th World Congress. Videourology Annual Meeting. Monte Carlo, Monaco. October 1992.
- Pediatric Cystourethroscopy with the MR‑PC; A Miniature Rigid Endoscope. Videourology Annual Meeting. Hakone, Japan. 1991.
- Techniques in Flexible Cystoscopy. American Urological Association Annual Meeting. Toronto, Canada. 1991.
- Flexible Cystoscopy: Diagnostic and Therapeutic Applications. 8th World Congress on Endourology & ESWL. Washington, D.C. August 1990.
- Techniques in Flexible Cystoscopy. 8th World Congress on Endourology and ESWL. Washington, D.C. August 1990.
- Endoscopic Treatment of Bile Duct Calculi with the Pulsolith. 8th World Congress on Endourology and ESWL. Washington, D.C. August 1990.
- Techniques in Flexible Cystoscopy. VideoUrology Annual Meeting. La Coruna, Spain. June 1990.
- Flexible Cystoscopy: Diagnostic and Therapeutic Applications. VideoUrology Annual Meeting. La Coruna, Spain. June 1990.
- Endoscopic Treatment of Bile Duct Calculi with the Pulsolith. VideoUrology Annual Meeting, La Coruna, Spain, June 1990.
- Pulsolith ‑ Laser Lithotripsy: A Cooperative Clinical Study in Upper Egypt. American Urological Association Annual Meeting. New Orleans, Louisiana. 1990.
- Pulsolith ‑ Laser Lithotripsy: A Cooperative Clinical Study in Upper Egypt. 7th World Congress on Endourology and ESWL. Kyoto, Japan. 1989.
- Laser Lithotripsy: A Cooperative Clinical Study in Upper Egypt. VideoUrology Conference. Genoa, Italy. 1989.