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Bariatric Surgery

Learn how bariatric surgery changed Karen’s life:

Weight loss results are more than cosmetic. Studies show that significant weight loss can greatly reduce or eliminate obesity-related illnesses such as diabetes and high blood pressure1. If you are struggling to lose weight, bariatric surgery may be an option that can also provide benefits to overall health.

Fort Sanders Center for Bariatric Surgery is accredited as a Comprehensive Center under the Metabolic and Bariatric Surgery Accreditation and Quality Improvement and offers:

  • Mark Colquitt, MD and Jonathan Ray, MD are board-certified surgeons with 25 years of combined experience and 2,200 bariatric surgeries
  • Certified bariatric nurses
  • Minimally invasive daVinci® robotics technology
  • Post-surgery support groups
  • Dietician consultations
  • FREE six-month post-surgical fitness program

What is Bariatric Surgery?

Laparoscopic Roux-en Y (Gastric Bypass)

Roux-en Y gastric bypass alters the digestion process by making foods incompletely absorbed and quickly eliminated in the stool. It is the current gold standard for weight loss surgery. The stomach is not removed, but rather reduced in size by stapling a smaller stomach pouch. The outlet from this new pouch empties directly into the lower portion of the small intestines, “bypassing” calorie absorption while creating a sense of satisfaction with less food. The surgery also impacts the amount of ghrelin that is produced. Ghrelin is a hormone that may be partly responsible for making you feel hungry.

Dr. Mark Colquitt performs the Roux-en Y procedure via robotically assisted surgery. Learn more:

Laparoscopic Sleeve Gastrectomy (Gastric Sleeve)

The “gastric sleeve” procedure decreases food intake by permanently reducing the size of the stomach. The surgery removes approximately 85% of the stomach, resulting in a stomach about the size and shape of a banana. This 85% includes the portion of the stomach that produces ghrelin, a hormone responsible for appetite and hunger. When ghrelin isn’t present, a reduction in appetite results.

Instead of patients losing weight because their bodies do not absorb calories, patients with a gastric sleeve lose weight because their bodies are restricting the amount of food that can be consumed. Less food means fewer calories. It is important to note that the gastric sleeve procedure is not reversible.

As with any weight loss procedure, success is dependent upon the patient’s commitment to weight loss.

Repair of LAP-Band Adjustable Gastric Banding System

Our center only performs repairs of previous lap band surgeries.


Want to learn more?

You’re invited to attend one of our free seminars to see if bariatric surgery is right for you. Click here for a schedule and call (865) 331-BAR1 (2271) to register.


Data sources:

1Henry Buchwald, MD, PhD; Yoav Avidor, MD; Eugene Braunwald, MD; Michael D. Jensen, MD; Walter Pories, MD; Kyle Fahrbach, PhD; Karen Schoelles, MD. Bariatric Surgery: A Systematic Review and Meta-analysis. JAMA. 2004;292(14):1724-1737. doi:10.1001/jama.292.14.1724.