- Discussion of the diversion from the gastric pinch to the laparoscopic sleeve gastrectomy: BELG (Laparoscopic Surgery on International Broadcast), October 01, 2021
- Adolescent Bariatric Surgery Course: Johnson & Johnson, December 05, 2020
- Dealing with Ends and Consequences: Online Conference: The Egyptian Society for Endoscopic Bariatric Surgery (ESBS), November 28-29, 2020
- Laparoscopic sleeve gastrectomy in adolescents: . 2nd Congress of the Society of Bariatric Endoscopy (BESP), in Sao Paulo, Brazil, October 02-03,
- Laparoscopic Sleeve Gastrectomy Recording Top 10 Videos: 24th World Congress of the International Federation for the Surgery of Obesity and Metabolic Disorders: IFEMA at the Municipal Palace, Madrid Spain, 03-07 September 2019
- Laparoscopic sleeve gastrectomy after gastric bypass surgery 24th World Congress of the International Federation for the Surgery of Obesity and Metabolic Disorders: IFEMA at the Municipal Palace, Madrid Spain, 03-07 September 2019
- Laparoscopic Sleeve Gastrectomy in Children and Adolescents with Obesity: Outcomes During the First Year: American Society for Bariatric and Metabolic Surgery (ASMBS) and Society of Obesity (TOS) Annual Meetings at Obesity Week, Nashville City Music Center, Nashville, TN, USA, 11 -15 November 2018
- Short Clinic Video Session: Is It Really Full Thickness?: The 5th Annual Gulf Bariatric Society Meeting, Conrad Hotel, Dubai, UAE, 6-9 December 2017
- Re-surgery after sleeve gastrectomy: The Fifth Annual Meeting of the Gulf Bariatric Surgery Society (GOSS 2017), Conrad Hotel, Dubai, UAE, from 6 to 09 December 2017
- Is it really thick?: The 4th International Course in Madrid Endoscopic Obesity (MIBE), Madrid, Spain, 20-22 September,
- Sleeve gastrectomy re-operation after laparoscopic sleeve gastrectomy: 4th International Course of Endoscopic Obesity Therapy in Madrid (MIBE), Madrid, Spain, September 20-22,
- Disasters in the operating room (video presentation), Dusit Thani Lakeview, Cairo, Egypt, November 22-24,
- Five-year follow-up results after single-stage gastric banding: 21st World Congress of the International Federation for the Surgery of Obesity and Metabolic Disorders, Rio de Janeiro, Brazil, September 28-October 01,
- Long-Term Outcomes of Sleeve Gastrectomy in Elderly Patients Over Sixty Years Old: The 21st International Conference on IFSO and Metabolic Disorders, Rio de Janeiro, Brazil, 28 Sep – 01 Oct,
- Gastrothoracic hernia after sleeve gastrectomy: 20th IFSO World Congress, Vienna, August 26-29,
- Does Sleeve Gastrectomy Stunt Growth in Children (postal poster): Obesity Week 2014: American Society for Metabolic and Bariatric Surgery, Boston Convention and Exhibition Center, Massachusetts, Nov. 02,
- Outcomes of Laparoscopic Sleeve Gastrectomy in Children and Adolescents with Prader-Willi Syndrome: National Conference and Exhibition of the American Academy of Pediatrics, San Diego Convention Center, California, USA, Oct 11-14,
- Laparoscopic Sleeve Gastrectomy in Children and Adolescents: Technique and Standard Perioperative Clinical Protocol, 19th World Congress, Montreal, Canada, August 26-30,
- Laparoscopic Sleeve Gastrectomy in Children and Adolescents: The Technique and Standard Perioperative Clinical Protocol (e-poster): ifso EC 2014- 6th Congress of the International Federation for the Surgery of Obesity and Metabolic Disorders, European Chapter, Brussels Belgium, 30 Apr – 03 May,
- Laparoscopic Sleeve Gastrectomy in Obese Children Under 14 Years of Age, SAGES 2014: Salt Lake City, Utah, Apr 2-5,
- Discussion: Obesity in Adolescents, First Annual Meeting of the Gulf Society for Bariatric Surgery, Kuwait, 11-14 December,
- Childhood Obesity: Excellence in Pediatrics, Qatar, Dec 4-7,
- Treatment of Other Comorbidities in Obese Children and Adolescents Undergoing Sleeve Gastrectomy, Obesity Week, American Society for Metabolic and Bariatric Surgery, Atlanta US, November 11-16,
- A comparative study on the prevalence of H. pylori and chronic gastritis in obese pediatric and adult patients who underwent laparoscopic sleeve gastrectomy, IFSO 2013 Conference, Istanbul, Turkey, August 28-31,
- British Association of Pediatric Surgeons, (BAPS): A comparative study on the prevalence of H. pylori and chronic gastritis in obese adult and pediatric patients who underwent laparoscopic sleeve gastrectomy, Rome, Italy, 13-16 June,
- ECO-2012 European Congress of Obesity: Laparoscopic sleeve gastrectomy study of 108 obese pediatric and adolescent patients aged 5 to 21 years, Lyon France, 03 December,
- American Society of Gastrointestinal and Endoscopic Surgeons SAGES: A Comparative Study of Laparoscopic Sleeve Gastrectomy in Obese Adults and Children, (SAGES Best Research Paper)
- American Society of Gastrointestinal and Endoscopic Surgeons SAGES: Sleeve gastrectomy after unsuccessful gastric banding (gastric band) as a corrective procedure (poster presentation).
- Thirteenth Annual Congress of Pediatric Abdominal Surgery: Laparoscopic Resection of Huge Umbilical Tumor in Infants, Maui, Hawaii, Aug. 13,
- Thirteenth Annual Congress of Pediatric Abdominal Surgery: Laparoscopic Sigmoidectomy in Infant Patients with Dilatation, Maui, Hawaii, Aug 13,
- Canadian Association of Pediatric Surgeons, First Comparative Study on Endoscopic Thoracic Endoscopic Repair of Tracheoesophageal Fistula, St. John Canada, August 22-26,
- Canadian Association of Pediatric Surgeons, Thoracoscopic CVL Placement, St. John Canada, Aug 22-26,
- Canadian Association of Pediatric Surgery, Double Thoracic Aortic Arch Ligation, St. John Canada, Aug 22-26,
- The 28th Annual Meeting of the Canadian Association of Pediatric Surgery, Adjustable Laparoscopic Gastric Banding in Adolescents and Children: Safety and Feasibility, Edmonton, 20 September,
- The 27th Annual Meeting of the Canadian Association of Pediatric Surgery, Minimal Access Surgery in Infants and Newborns, Alberta, 06 Sep,
- The 27th Annual Meeting of the Canadian Association of Pediatric Surgery Conservative Non-Surgical Treatment of Biliary Tract Injury, Alberta, Sep 06,
- 6th Asia Pacific Laparoscopic Conference, Laparoscopic Pyloromyotomy: Is it Safe?, Malaysia, 03 Dec.
- European Pharmacy Students Association EPSA: Laparoscopic Nissen fundoplication (video presentation), Dec 8,
- European Pharmacy Students Association EPSA: Laparoscopic surgery in the repair of anal perforation in children (video presentation),
- European Pharmacy Students Association EPSA: Endoscopic repair of tracheo-oesophageal fistula with oesophageal atresia
- European Pharmacy Students Association EPSA: Closure of patent ductus arteriosus in neonates by thoracoscopy,
- The 34th Annual Meeting of the Canadian Association of Pediatric Surgery: A Review of Twenty Years of Work and Research on Pediatric Endobronchial Tumors, Vancouver, 12 Sep,
- The 34th Annual Meeting of the Canadian Association of Pediatric Surgery: Esophageal Lengthening and Early Anastomosing Technique for the Treatment of Oesophageal Atresia with Large Gap, Vancouver, 12 Sept.
- The 33rd Annual Meeting of the Canadian Association of Pediatric Surgery, Percutaneous varicocele design in children, The Canadian Experience (virtual lecture), Calgary, Sep 05,
- The 30th Annual Meeting of the Canadian Association of Pediatric Surgery: A Lecture on Our Twenty-Five Years of Experience in Pediatric Lymphoma, Toronto, Sep 05,
- Annual Meeting of the Royal College of Surgeons of Canada: Investigations in Profuse Low Gastrointestinal Haemorrhage, Dec 10,