Bariatric Surgery and Procedures Flashcards
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Which bariatric procedure involves removing approximately 80% of the stomach along the greater curvature, leaving a tubular pouch?
Answer: Sleeve gastrectomy
Sleeve gastrectomy removes about 80% of the stomach along the greater curvature, creating a banana-shaped tubular pouch.
In Roux-en-Y gastric bypass, what is the approximate size of the newly created gastric pouch?
Answer: About 15-30 mL
The Roux-en-Y gastric pouch is typically 15-30 mL, roughly the size of an egg, which sharply restricts intake.
Which mechanism primarily explains why sleeve gastrectomy reduces hunger beyond simple restriction?
Answer: Removal of the ghrelin-producing gastric fundus
The gastric fundus is the main site of ghrelin production, so its removal lowers levels of this hunger hormone.
A patient with a BMI of 37 and type 2 diabetes asks whether they qualify for bariatric surgery under the 2022 ASMBS/IFSO guidelines. What is the most accurate response?
Answer: Yes, surgery is recommended for BMI ≥35 regardless of comorbidities
The 2022 ASMBS/IFSO guidelines recommend bariatric surgery for BMI ≥35 regardless of comorbidities and consider it for BMI 30-34.9 with metabolic disease.
Which bariatric procedure is fully reversible and involves no cutting or stapling of the stomach or intestines?
Answer: Adjustable gastric banding
Adjustable gastric banding places a removable silicone band around the upper stomach without cutting or stapling, making it reversible.
Which procedure combines a sleeve gastrectomy with a long intestinal bypass and produces the greatest average weight loss?
Answer: Biliopancreatic diversion with duodenal switch
The duodenal switch pairs a sleeve gastrectomy with a substantial intestinal bypass, yielding the greatest weight loss but the highest malabsorption risk.
Why is laparoscopic surgery generally preferred over open surgery for bariatric procedures?
Answer: It reduces wound complications, pain, and recovery time
Laparoscopic approaches use small incisions, lowering wound complications, postoperative pain, and hospital stay compared with open surgery.