Are you’re thinking about having one of those surgeries your friend says will make you become slim like Gisele Bundchen or Kendall Jenner after trying series of ‘fad diets’? these are important things to know before embarking on your journey.
Criteria for Weight Loss Surgeries
You need to have a lot of extra weight to be a candidate for weight loss surgery. This is calculated based on Body Mass Index (BMI). You
BMI is calculated by dividing weight(in kg) by height squared(in metres).
Normal BMI is between 18.5 -24.9,
BMI between 25-29.9 is considered as overweight while
BMI 30 and above is classified as obese.
Weight Requirements for these surgeries include;
– BMI greater than 40
– BMI of 35-40, and you have a condition such as high blood pressure, diabetes, asthma, severe arthritis, GERD, or obstructive sleep apnea. (Your doctor will have the full list.)
– BMI of 30-35 and you have diabetes or metabolic syndrome.
You also need to fully understand the risks, the behavioural changes required after the surgery before you’re considered a candidate for Surgery.
Despite these fulfilled requirements, if a patient has any illness that greatly reduce life expectancy or the illness is unlikely to be improved by weight reduction like advanced cancer, advanced kidney disease or abuses of any form of substance, the doctor may decide to withhold surgery.
Ways in Which Weight Loss Surgery Work
There are generally three ways in which weight loss surgeries help people lose weight;
Restriction: Surgery is used to physically limit the amount of food the stomach can hold, which limits the number of calories you can eat. The procedures include:
1. Vertical banded gastroplasty
2. Sleeve gastrectomy
3. Adjustable gastric banding (Lap-Band surgery)
4. Intragastric balloon (gastric balloon)
5. Gastric plication
Malabsorption: Surgery is used to shorten or bypass part of the small intestine, which reduces the amount of calories and nutrients the body absorbs. Malabsorptive surgeries have higher complication rates. These surgeries include;
1. Gastric bypass (Roux-en-Y Gastric Bypass) – mineral malabsorptive, not calorie malabsorptive.
2. Biliopancreatic diversion
3. Duodenal switch – mineral, calorie, and fat-soluble vitamin malabsorptive.
Implanting an electrical device: the newest of the three techniques, prompts weight loss by interrupting nerve signals between the stomach and the brain. The only approved procedure in this class is V- bloc therapy.