Gastric Bypass Surgery

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Gastric Bypass Surgery

• By Amy Smith, Erin Bloomfield, Ashley Coleman,
  Sean Beitey

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SurgicalProcedure

• The stomach is made smaller by creating a small
  pouch at the top of the stomach using surgical
  staples.

• The smaller stomach is connected directly to the
  middle portion of the small intestine (jejunum),
  bypassing the rest of the stomach and the upper
  portion of the small intestine (duodenum).

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How Does It Contribute To Weight Loss?

• People feel full more quickly than when their
  stomach was its original size.
• This reduces the
• amount of food they
• eat, and thus
• reduces the amount
• of calories consumed.

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Dumping Syndrome

• This occurs when food moves too quickly through
  the stomach and intestines.
• It can cause heart palpitations (Rapid HR),
  nausea, weakness, sweating, faintness, and
  possible diarrhea soon after eating.
• These symptoms are made worse by eating highly
  refined, high-calorie foods (like sweets).
• In some cases, the person may become so weak that
  they have to lie down for 30-60 minutes.

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So what the heck is going on?

• Too much food, sugary food, or liquid taken with
  meal cause food to shoot through the stomach
  into the intestines
• Osmotic overload brings fluid into the lumen of
  small intestine
• resulting in cramping,
• bloating, gas, and
• diarrhea

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What the heck (cont).

• Vasodilatation causes hypovolemia to occur
• There is an exaggerated insulin and GLP-1 release
  (Glucagon-like Peptide)
• enhances insulin secretion, even when glucose is
  low
• inhibits glucagon secretion (negative feedback)
• causes hypoglycemia which leads to weakness

• GLP-1 elicits activation
• of sympathetic outflow
• (Vagus nerve stimulation).

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Analogy

• Seattle Traffic
• Its stopped except the car pool lane so you
  decide to give into temptation (your all alone).
  You swiftly move past all the slow moving
  traffic, BUT Amy uses her cell phone to rat on
  you.
• Next thing you know
• Johnny Law is
• pulling you over,
• writing you a ticket,
• and ruining your day

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Any Questions???