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Common Questions of Gastric Bypass

Common Questions of Gastric Bypass

Due to the extreme decrease in food consumption, some patients may face malnutrition, poor wound healing, and infection.

Gastric Bypass or keyhole surgery is a weight loss or bariatric surgery in which a small stomach pouch is created and the small bowel is re-routed using laparoscopy. It reduces the danger of life-threatening obesity-related health issues and excess weight.

In this surgery, a banana-shaped pouch is created in the stomach and then connected to the small intestine through anastomosis (joint between the stomach and bowel), bypassing a portion of the small intestine. Contrary to its name, it causes much weight loss due to high absorption. It is usually suggested to people whose BMI is above 45.

Mini gastric bypass surgery (MGBS) is a simpler less invasive procedure with a shorter recovery time, compared to the regular gastric bypass.

In gastric bypass, a small pouch bypasses the stomach and attaches to the intestine. At the same time, sleeve gastrectomy is a procedure in which 75-80% of the stomach is removed. Click here to read more about the differences between gastric bypass and gastric sleeve.

Patients lose around 60% – 80% of weight after the operation on average. However, 15% – 35 % of patients fail to lose enough weight or regain weight after a while according to the studies.

It is the second surgery to treat any possible complication after the first operation. It is also performed to replace a longer portion of the small intestine for more weight loss.

No, gastric bypass surgery is not reversible.

Gastric bypass surgery is suitable for obese people who suffer from obesity-related diseases, such as type 2 diabetes, sleep apnea, and high blood pressure, or those with a BMI above 40 (extreme obesity), or a BMI higher than 35 who have not been able to lose weight by other non-surgical weight loss methods. Consult the surgeon to choose the best method regarding your circumstances.

As long as you don’t do strenuous activities and do office work, you can normally return to work after about a week. For heavier activities, it can take up to a month.

After about 4 weeks, you can exercise.

Yes, you will need to take multivitamins for life due to malabsorption and vitamin deficiency after bypass surgery.

Bypass surgery could have some risks just like any other surgery. It can lead to complications, such as malnutrition.

The common drawbacks of weight loss operations are the complications and side effects that may occur after the surgery, although they happen in less than 6% of cases.

Failure occurs when either: 1- Patients experience severe side effects; 2- they cannot lose weight; 3- they don’t stick to the new habits recommended by the surgeon; or 4- they don’t have a healthy diet after surgery.

It is bad if: 1- Your body mass index is below 35; 2- You don’t have obesity-related health problems; 3- You can lose weight via diet and exercise.

Today, over 90% of gastric bypasses performed for weight loss are done laparoscopically.

Yes, because of poor exercise or diet habits.

The fast weight loss observed in some patients may affect immune homeostasis.

Dumping syndrome is when food is dumped directly from the stomach pouch to the small intestine without being digested. If you eat and drink fast and have a sweet tooth after bypass surgery, dumping syndrome can happen.

Doctors recommend patients not take aspirin or aspirin-containing products for at least one week after surgery and several weeks before that.

Although an increasing number of gastric or colorectal cancers after bypass surgery has been reported in the last decade, mostly located in the excluded stomach, there appears to be a strong association between bariatric surgery and decreased risk of hormone-related cancers including postmenopausal breast, endometrial, and ovarian. But it is not clear yet if the same happens for other types of cancers not usually driven by hormones, like liver cancer.

A rise in liver function tests (LFTs) has been noted in some patients following gastric bypass.

An increased risk of Crohn’s disease has been noted in some patients following gastric bypass.

Higher recurrence rates are reported after standard surgical treatment of hiatal hernia in morbidly obese patients and bariatric surgery has been shown to improve a hiatal hernia.

It is a rare complication in 10% of cases. Bariatric surgery can lower complications, mortality, and recurrent hospitalization of diverticulitis.

Fortunately, gastritis is not a common complication after gastric bypass. After the bariatric surgery, the rate of gastritis can be reduced.

Limited studies exist on gastric bypass’s effect on PCOS. Bariatric surgery may specifically reduce visceral adiposity in women with PCOS and can have a positive impact on PCOS as it alleviates PCOS symptoms through the benefits of weight loss.

Due to higher risks and complications, gastric bypass is not usually redone.

This is an indirect outcome due to hormonal imbalance. Bariatric surgery itself does not cause acne. It is related to the hormonal and dietary changes that ensue.

while the surgery before pregnancy may help in overcoming hypertension and gestational diabetes and can improve fertility and protect women and their babies from obesity-related risks, fetal development could be affected due to malnutrition caused by some weight-loss surgeries. After the surgery, the patient is most at risk of nutritional deficiencies which may cause both maternal and fetal complications during the pregnancy. Therefore, it is usually recommended to avoid pregnancy for at least 18 months after bariatric surgery as the patient will experience rapid weight loss during this period.

Yes, but Gastric bypass surgery carries some risks like any other surgical procedure, such as infection, hair loss, blood clots, and internal bleeding. Although it can improve obesity-related problems such as type 2 diabetes, and high blood pressure, you are required to take vitamins and supplements for life due to the vitamin and nutrient deficiency after this surgery.

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