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Case Studies
Laparoscopic Roux-en-Y Gastric Bypass

Weight loss surgery patient from Harrow, ON, Canada had Laparoscopic RNY Gastric Bypass performed. Contact Dr. Keith Norton Marshall at the Michigan Institute of Bariatric Surgery, Warren Michigan. 

Performed By - Dr. Keith Norton Marshall, DO

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I am 12 years post op gastric bypass and was thinking of getting a revision. How much does the stomaphyx procedure cost?

Why should I not drink carbonated beverages after Roux-en Y Bypass?

I had hype surgery 11 years ago at Columbia Presbyterian and I know weigh 250. Is there an addition procedure I can have done to lose 100 more pounds????

i had gastric bypass surgury in 2000,for some reason my top stomach seems very extended and i cant lose any weight there is this something i should get checked?

i had gastric bypass surgery in June 2003 and Dr. Viglianco performed a successful surgery and I am still keeping the weight off, I went from 267lbs to 132lbs and very happy. January I had an episode of what felt like a gall bladder attack (i do not have one) and my abdomen was severely bloated I was vomiting several times a day, my doctor took xray and said I had an obstructed bowel, well I had a colonoscopy done and I couldnt be cleaned out enough to get results that was 3/27/15 had a CTscan in april and they said it was adhesions, and another CTscan of pelvic area and abdomen and they said it was "Post op changes to stomach due to Gastric Bypass", I am still having severe swelling, in upper abdomen and dull achy pain constantly, I do not know what to do now except contact you and see if someone can help me...I have swelling everyday, sometimes i can have diarehea and other times so constipated that it hurts to even walk...Please can someone help me, as I am so frustrated and I know if I do have an Obstructed Bowel it can be fatal, I do not want to live like this anymore, can someone give me some answers please.....

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I just love Dr. Marshall, he is funny and kind and understanding! Whenever I see him at my follow-ups I call him Skinny Minny because he had the surgery too which I like because he really knows what you're going through and even if he didn't have the surgery he is still a wonderful surgeon. In fact my husband is having the surgery and want Dr. Marshall to do his also!
- Kris
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  • Bariatric Surgery (Weight Loss)
  • Cosmetic Surgeons
  • Weight Loss Specialists
  • Born : Portland Maine 02-17-1953
  • Moved to Montreal, Quebec, Canada in 1960
  • University: Concordia of Montreal, Graduated in 1975, B.Sc. (Honours) in Biology, Genetics.
  • Medical School: Kirksville College of Osteopathic Medicine, Kirksville Missouri, Grad: 1979.DO
  • Internship: Osteopathic General Hospital, N. Miami Bch, Fla., Grad: 1980, Rotating Internship.
  • Resident: First year Resident in Urology, SouthEastern Medical Center, N. Miami Bch, Fla.,
  • Resident: Second to Fourth year General Surgery Resident, Mt. Clemens, MI, General Surgery.
  • Bariatric Experience in Florida: Daytona Beach, 1994-2002. 350 cases Open
  • Bariatric Experience in Michigan: Warren, 900 open cases, 1100 cases laparoscopic.


  • American College of Osteopathic Surgeons (ACOS)
  • Society of Gastro-Endoscopic Surgeons (SAGES)
  • American Society of Metabolic and Bariatric Surgery (ASMBS)
  • Michigan Bariatric Society (MBS)
  • Michigan Osteopathic Association (MOA)
  • Maconb County Osteopathic Society(MCOS)
  • American Osteopathic Board of Surgery (AOBS)



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