Weight Loss Surgery Surgical Procedures and Techniques 2 — Questions and Answers
Question 1: What is the 'alimentary limb' (Roux limb) in a Roux-en-Y gastric bypass?
- The segment connecting the stomach to the esophagus
- The portion of small intestine connected directly to the gastric pouch to carry food (Correct answer)
- The bypassed stomach remnant
- The section of bowel that carries bile and pancreatic juice
Correct answer: The portion of small intestine connected directly to the gastric pouch to carry food
The Roux (alimentary) limb is the segment of small intestine sewn to the gastric pouch, carrying ingested food distally.
Question 2: Which condition is a relative contraindication to bariatric surgery?
- BMI of 40 or higher
- Type 2 diabetes
- Uncontrolled psychiatric disorder (Correct answer)
- Obstructive sleep apnea
Correct answer: Uncontrolled psychiatric disorder
Uncontrolled psychiatric disorders are a relative contraindication because they may impair adherence to post-operative lifestyle requirements.
Question 3: What is the minimum BMI threshold for bariatric surgery eligibility according to standard NIH guidelines?
- BMI ≥ 27
- BMI ≥ 30
- BMI ≥ 35
- BMI ≥ 40 (Correct answer)
Correct answer: BMI ≥ 40
NIH guidelines recommend bariatric surgery for patients with BMI ≥ 40, or BMI ≥ 35 with one or more obesity-related comorbidities.
Question 4: Which hormone, primarily produced by the gastric fundus, is significantly reduced after sleeve gastrectomy, contributing to decreased appetite?
- Leptin
- Insulin
- Ghrelin (Correct answer)
- Peptide YY
Correct answer: Ghrelin
Ghrelin, known as the 'hunger hormone,' is produced mainly in the fundus, which is removed during sleeve gastrectomy.
Question 5: What is a staple-line leak, and when does it most commonly occur after bariatric surgery?
- A leak of stomach acid into the abdomen, occurring years later
- An opening in the surgical staple line allowing gastric contents to escape, usually within 7 days (Correct answer)
- A leak in the drainage tube placed during surgery
- Leakage of bile from the bile duct during surgery
Correct answer: An opening in the surgical staple line allowing gastric contents to escape, usually within 7 days
A staple-line leak is a life-threatening complication where the surgical staple line fails, typically occurring within the first week post-operatively.
Question 6: Which bariatric procedure is considered fully reversible?
- Sleeve gastrectomy
- Roux-en-Y gastric bypass
- Adjustable gastric banding (Correct answer)
- Biliopancreatic diversion
Correct answer: Adjustable gastric banding
Adjustable gastric banding is the only common bariatric procedure that is fully reversible because no stomach tissue is removed or permanently rerouted.
Weight Loss Surgery Surgical Procedures and Techniques 2
What is the 'alimentary limb' (Roux limb) in a Roux-en-Y gastric bypass?