Weight Loss Surgery Weight Loss Surgery 5 — Questions and Answers
Question 1: What is 'anastomotic leak' after gastric bypass, and when does it most commonly present?
- Leakage of stomach acid into the abdominal cavity, presenting weeks later
- Leakage at a surgical connection point, typically presenting within 1-5 days post-op (Correct answer)
- Leakage of bile into the gastric pouch, presenting at 2 weeks
- Leakage from the staple line, presenting only after resuming solid food
Correct answer: Leakage at a surgical connection point, typically presenting within 1-5 days post-op
Anastomotic leak is a serious complication where the surgical join fails, typically presenting in the first week with tachycardia, fever, and abdominal pain.
Question 2: Which non-surgical bariatric procedure involves placing a fluid-filled silicone balloon into the stomach to reduce its capacity?
- Endoscopic sleeve gastroplasty
- Intragastric balloon (Correct answer)
- Vagal nerve blocking (vBloc)
- Aspire Assist therapy
Correct answer: Intragastric balloon
The intragastric balloon is a temporary, non-surgical device placed endoscopically that occupies gastric space to reduce food intake.
Question 3: Why are bariatric patients instructed to AVOID drinking liquids during and immediately after meals?
- Liquids dilute digestive enzymes needed for proper digestion
- Liquids flush solid food through the pouch faster, reducing restriction and satiety (Correct answer)
- Liquids cause pouch inflammation when mixed with food
- Liquids increase the risk of dumping syndrome when consumed with food
Correct answer: Liquids flush solid food through the pouch faster, reducing restriction and satiety
Drinking with meals moves food out of the small stomach pouch more quickly, reducing the feeling of fullness and undermining restriction.
Question 4: What is the recommended daily protein intake goal for most bariatric surgery patients post-operatively?
- 20-30 grams per day
- 40-50 grams per day
- 60-80 grams per day (Correct answer)
- 100-150 grams per day
Correct answer: 60-80 grams per day
Most bariatric guidelines recommend 60-80 grams of protein daily to preserve lean muscle mass during rapid weight loss.
Question 5: A patient 3 years post-sleeve gastrectomy reports significant weight regain. Which revisional surgery is commonly performed to add a malabsorptive component?
- Adjustable gastric band placement over the sleeve
- Conversion to Roux-en-Y gastric bypass or single anastomosis duodenoileal bypass (Correct answer)
- Repeat sleeve to further reduce pouch size
- Placement of an intragastric balloon
Correct answer: Conversion to Roux-en-Y gastric bypass or single anastomosis duodenoileal bypass
Converting the sleeve to a bypass procedure adds malabsorption, addressing weight regain that restriction alone cannot resolve.
Question 6: What is 'reactive hypoglycemia' (post-bariatric hypoglycemia) and when does it typically occur?
- Low blood sugar occurring immediately upon eating due to insulin deficiency
- Low blood sugar occurring 1-3 hours after meals due to exaggerated insulin response (Correct answer)
- Fasting hypoglycemia caused by malabsorption of glucose
- Nocturnal hypoglycemia from overnight fasting in post-op patients
Correct answer: Low blood sugar occurring 1-3 hours after meals due to exaggerated insulin response
Exaggerated GLP-1 and insulin secretion after meals causes blood sugar to drop 1-3 hours post-meal, a condition called late dumping or post-bariatric hypoglycemia.
Question 7: Which professional organization publishes the primary clinical practice guidelines for bariatric surgery in the United States?
- American College of Surgeons (ACS)
- American Society for Metabolic and Bariatric Surgery (ASMBS) (Correct answer)
- American Medical Association (AMA)
- The Obesity Society (TOS) alone
Correct answer: American Society for Metabolic and Bariatric Surgery (ASMBS)
The ASMBS is the leading US professional society that sets clinical guidelines, certification standards, and best practices for bariatric surgery.
Weight Loss Surgery Weight Loss Surgery 5
What is 'anastomotic leak' after gastric bypass, and when does it most commonly present?