Introduction

Do you suffer from excessive obesity? Did your doctor suggest that you undergo gastric bypass surgery? You have many questions about this matter, and you have fears about this operation and its results and consequences. So, my dear, this article is to answer all your questions, and you can find all of this at Klarity Library.

Gastric bypass surgery is one of the bariatric surgeries, it was and still is a very common surgery for surgical obesity treatment. This surgery is indicated for obese patients to relieve their health problems related to obesity such as hypertension, type 2 diabetes, obstructive sleep apnea, and chronic acid reflux (GERD), and improve their quality of life and their appearance in front of people. In this surgery, the patient is subject to changes in the digestive system, especially in the stomach and small intestine, to consume fewer calories. This surgery is considered to be the only bariatric surgery that makes long-term weight loss with acceptable risks.¹

How this surgery performed

In the past, gastric bypass surgery, or what is called Roux-en-Y gastric bypass (RYGB) was performed by open incision of the abdomen, but this way carried lots of complications and risks like bleeding, wound infection, severe pain, and increased rate of mortality due to complication of the surgery. So surgeons started to use a new way to perform this surgery: a laparoscope. Laparoscopes have been used for different surgeries for a long time. It has several advantages: no need to open the abdomen, less bleeding, less pain, and less suffering from wound infection. Therefore, using it becomes the gold standard for performing gastric bypass surgery.²

What are the indications and contraindications for laparoscopic gastric bypass

Not every patient can use laparoscopy to do gastric bypass surgery. Otherwise, for every case evaluated separately to know if it is fit for laparoscopy or not, here are some of the indicated and contraindicated cases for laparoscopic procedure:

Indications²

Patients indicated for laparoscopic gastric bypass are:

• BMI is greater than or equal to 40
• BMI is greater or equal to 35 with one of obesity comorbid conditions (hypertension, diabetes, GERD, and others)
• He should be physically and mentally fit for the surgery
• No alcohol or any substance abuse
• If trying other weight loss techniques and no benefit results

Contraindications²

Patients that are contraindicated for laparoscopic gastric bypass are those with previous abdominal surgeries, those who have uncorrectable coagulopathy, or with the inability to tolerate pneumoperitoneum, and those who need long-term endoscopic surveillance or have Barrett esophagus with severe dysplasia.

What are the risks and benefits of gastric bypass surgery?

This surgery will help obese patients lose weight and improve their health and quality of life, here are some of the benefits and risks of this surgery:

Benefits³

1. Significant Weight Loss: this surgery makes a remarkable weight reduction and great results in reducing obesity health problems. It has at least a 5-year follow-up with durable weight loss and glycemic control better than sleeve gastrectomy (another type of bariatric surgery).
2. Improvement in Obesity-Related Health Conditions: after the surgery, patients experience improvement or resolution of obesity-related comorbidities, such as hypertension, diabetes, and high cholesterol.
3. Enhanced Quality of Life: after the surgery patients’ lives change for better aspects their quality of life becomes better and their mobility and self-esteem become good after successful weight loss.
4. Long-Term Weight Maintenance: Gastric bypass surgery may provide more effective and sustained weight loss compared to non-surgical interventions for some individuals.

Risks:⁴

1. Surgical Risks: As with any major surgery, gastric bypass carries inherent risks such as infection, bleeding, and adverse reactions to anaesthesia.
2. Nutritional Deficiencies: The surgery alters the digestive tract, potentially leading to malabsorption of nutrients. Patients may need to take lifelong supplements and regularly monitor for nutritional deficiencies.
3. Dumping Syndrome: Rapid emptying of the stomach contents into the small intestine can cause dumping syndrome, leading to symptoms such as nausea, vomiting, diarrhoea, and weakness after eating certain foods.
4. Gallstones: Rapid weight loss can increase the risk of gallstones, which may require further treatment.
5. Psychological and Emotional Challenges: Some individuals may experience psychological and emotional challenges, including depression, anxiety, or changes in body image, following the surgery.
6. Strictures and Leaks: Complications such as strictures (narrowing) or leaks in the connections between the stomach and intestine can occur, requiring additional medical attention and sometimes surgery.
7. Lifestyle Changes: Patients need to make significant lifestyle changes, including dietary modifications and regular exercise, to maximize the benefits of the surgery and maintain weight loss.

It's crucial for individuals considering gastric bypass surgery to thoroughly discuss the potential risks and benefits with their healthcare team. The decision to undergo this procedure should be based on a comprehensive assessment of individual health, lifestyle, and the severity of obesity. Additionally, long-term follow-up care is essential to monitor and address any potential complications.

Surgical procedure:⁵

To prepare before the surgery:

You should do some physical activity and stop smoking. Directly before the surgery you should stop eating and drinking for a while and ask your doctor if there is a special medication you should take or not and ask him else about what you should do with your regular medication, take any of them or not. 

During the procedure:⁶

• This surgery is done in a hospital and according to your health and recovery, you may need to stay one or two days in the hospital if everything goes well.
• Surgeons can do this surgery in the traditional way through open incisions in your abdomen or using laparoscopically. That depends on the patient's case and the experience of the surgeon.
• The surgery starts with general anesthesia to make you go to sleep After making the incisions with the open or laparoscopic technique, the surgeon will cut the top part of the stomach and then seal it off from the rest of the stomach then attach this small pouch to the middle part of the small intestine. 
• Therefore food after that will go through this pouch of the stomach directly to the middle of the small intestine this will lower the amount of food you consume as this pouch of the stomach will not take a lot of food which is the technique of weight loss using gastric bypass surgery.

After the surgery:⁶

• You can’t eat solid food, take only liquids until the stomach and intestine heal.
• Your doctor will change the nature of your food from liquid to normal foods with time.
• Your doctor will advise you to start taking multivitamins and minerals rich in calcium, iron, and vitamin B12.
• You will need medical follow-up and laboratory tests in the next few months to check your health and the rate of weight loss. 
• You may experience some body changes due to rapid weight loss like:
  • Pain in your body
  • Fatigue
  • Feeling cold
  • You may have dry skin and hair loss
  • Mood changes

Summary

Gastric bypass surgery is one of the brilliant solutions for obese patients especially those who have obesity-related problems like diabetes, hypertension, and sleep apnea. Know that my dear reader, if you have one of the criteria we talked about above, you need to do gastric bypass surgery therefore not be afraid of it. this surgery will help you to lose a lot of weight and will help you to get rid of several obesity-related comorbidities and will change your life and increase your confidence in yourself so don’t be afraid and follow the instructions of your doctor and keep your diet and exercise. 

FAQs

Can you ever eat normally after a gastric bypass?⁸

You can return to eating normally during 6-8 weeks after the surgery. But you should care about drinking plenty of water to avoid dehydration. And follow the doctor's instructions.

Is gastric bypass a serious surgery?⁷

Yes, as it is considered a major surgery and will change your digestive system forever. After the surgery, you will still all your life take care about it and keep on the life changes you walk on in eating and exercising.  

What foods can I never eat again after gastric bypass?⁹

There are some types of food you may not eat after the surgery, these foods may include the following:

• Red meat that’s tough or dry
• Greasy, high-fat foods
• Heavily seasoned or spicy foods
• Sugar alcohols, such as erythritol, glycerol, mannitol, sorbitol and xylitol
• Foods reheated in the microwave