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Dr. Toon Sonneville

Bariatric Surgeon in Belgium

Below is the resume of Dr. Toon Peter Marcel Sonneville, Board-certified expert in minimally invasive bariatric and general surgery. He has a special interest in metabolic disease treatment and general surgery.

He has also performed laparoscopic anti-reflux procedure, intra gastric baloon, gastric bypass, gastric sleeve, duodenal switch, gastric band, cholecystectomy, hernia (hiatal, diaphragmatic, inguinal, Spigel incisional) repair, colectomy, rectopexy, appendectomy, liver surgery, pancreatic surgery, splenectomy, and gastrectomy. He regularly teaches and conducts workshops and surgery at many international locations.

Toon Peter Marcel Sonneville – CURRICULUM VITAE

Professional Profile
Dr. Toon Sonneville

Date and place of birth: 20 May 1966 in Ghent, Belgium


1991: Graduated in medicine with distinction from University of Ghent
1989: Associated Teacher of Anatomy (Courtesy Prof. L.Vakaet)
1992: Navy Staff Medical Officer (NATO)

Surgical training

1993: Dr L Berwouts, Deinze
1994-1995: Dr W Cornette, Zottegem
1995-1996: Dr D Claeys, Ghent
1996-1998: Dr B de Hemptinne, Ghent
1998-2000: Dr D Claeys, Ghent
1998: Certificate Radioprotection
1998-1999: Course on emergency treatment

Surgical and Bariatric Experience

2000-2004: Co-pioneer of advanced laparoscopic bariatric surgery, Dendermonde
2004-2007: General and bariatric surgeon staff, Antwerp
Performed numerous laparoscopic Roux-en-Y gastric bypass, duodenal switch and sleeve gastrectomy surgeries, including Redosurgery and adjustable band
2007: Resident in Beaujon Hospital, Paris


2001: On bariatric surgery, Zele
2002: On obesity surgery, Porto
2004: On rectal prolapse, Berlare
2005: Symposium on bariatric surgery and duodenal switch, Antwerp
2005: Duodenal Switch, Lyon
2006/2008: Pelvic prolapse, Antwerp
2008: Treatment of the open Abdomen, Antwerp
2008: Update on Obesity treatment, Merelbeke
2008: Oncologic Laparoscopic Surgery, Ghent


2001: Obesity Surgery: Laparoscopic Inflatable Band With Roux-en Y gastric bypass
2002: Surgical Endoscopy: Laparoscopic pyloric exclusion after ERCP perforation
2003: Sleeve gastrectomy, Salamanca
2005: Surg. Endo: Laparoscopic Roux-en-Y gastric bypass performed without staples
2006: Stapleless bariatric surgery, Sydney
2008: Book Chapter: Endoscopic treatment of posterior compartment descent in pelvic prolaps. Female Genital Prolaps, informa (ISBN: 978-0-8493-3656-0)


  • Royal Belgian Society of Surgery
  • International Hepato Pancreato Biliairy Association
  • Bariatric Surgeons of Belgium
  • Belgian Group of Endoscopic Surgeons
  • Board Certified

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