Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is bariatric surgery? |
Weight reduction surgery for the morbidly obese |
|
|
Define morbid obesity? |
1. BMI >40 (basically, >100 lbs above ideal body weight) OR 2. BMI >35 with a medical problem related to morbid obesity |
|
|
What is the formula for BMI (metric)? |
Body weight (kg) / height (m^2) |
|
|
What is the formula for BMI (non-metric)? |
(Body weight (lbs) * 703) / height (inches^2) |
|
|
What medical problems are associated with morbid obesity? |
- Sleep apnea - CAD - Pulmonary disease - Diabetes mellitus - Venous stasis ulcers - Arthritis - Infections - Sex hormone abnormalities - HTN - Breast cancer - Colon cancer |
|
|
What are the current options for surgery for morbid obesity? |
- Gastric bypass (malabsorptive) - Vertical banded gastroplasty |
|
|
What is gastric bypass? |
- Stapling off of small gastric pouch (restrictive) - Roux-en-Y limb to gastric pouch (bypass) |
|
|
How does gastric bypass work? |
1. Creates a small gastric reservoir 2. Causes dumping symptoms when a patient eats too much food or high-calorie foods; the food is "dumped" into the Roux-en-Y limb 3. Bypass of small bowel by Roux-en-Y limb |
|
|
Which operation works best for morbid obesity? |
Gastric bypass (mean weight loss 50% excess weight) |
|
|
What are the possible post-op complications after weight-reduction surgery? |
- Gallstones (if gallbladder in situ) - Anastomotic leak - Marginal ulcer - Stenosis of pouch / anastomosis - Malnutrition - Incisional hernia - Spleen injury - Iron deficiency - B12 deficiency |
|
|
What is the most common sign of an anastomotic leak after a gastric bypass? |
Tachycardia |
|
|
What is the incidence of anastomotic leak? |
~3% (1-5%) |
|
|
What is the mortality rate of an anastomotic leak? |
~10% |
|
|
What is a lap-band? |
Laparoscopically placed band around the stomach with a subcutaneous port to adjust constriction; results in smaller gastric reservoir |
|
|
What is a Petersen's hernia? |
Seen after bariatric gastric bypass - internal herniation of small bowels through the mesenteric defect from the Roux-en-Y limb |
