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What Is Bariatric Surgery?
Bariatric surgery is a group of surgical procedures performed on the stomach or intestines to reduce their size and thus help people lose weight. It is only recommended for people who are severely obese and have not been able to lose weight through diet, exercise, or medication alone. For many patients, it also significantly improves conditions like type 2 diabetes, high blood pressure, and sleep apnea. According to research supported by the National Institutes of Health (NIH), 85% of bariatric surgery patients experience significant and sustained weight loss, and report considerable improvement in their quality of life.
Dr. Venu Gopal Pareek is one of the best bariatric surgeons of India. He has over 22 years of experience and have successfully performed over 10,000 surgeries. He can evaluate whether bariatric surgery is the right step for his patients and guide them through the entire journey.
Ahead, let’s understand who exactly is a candidate for this surgery. Read on.
When Is Bariatric Surgery Needed?
Bariatric surgery is not for everyone who wants to lose weight. It is not a fad cosmetic surgery. It is a major surgical decision, recommended only when specific medical criteria are met. Here are what may qualify you for the surgery.
A BMI Of 40 Or Above: A Body Mass Index (BMI) of 40 or higher indicates severe obesity. At this level, the excess weight poses serious risks to overall health and longevity. And at this stage, diet or exercise alone rarely produces sustainable results.
A BMI Of 35 Or Above With Related Health Conditions: If your BMI is between 35 and 40 and you have obesity-related conditions like type 2 diabetes, high blood pressure, sleep apnea, or joint problems, surgery may be recommended even at this lower threshold. In these cases, the goal is not just weight loss but to manage the other health conditions better.
Failed Attempts At Non-Surgical Weight Loss: Bariatric surgery is not a first resort. It is typically considered only after a patient has made consistent, documented attempts to lose weight through diet, exercise, and medication without success.
Even when a patient qualifies on the above-mentioned parameters, the doctor will still evaluate their overall health, psychological readiness, and commitment to lifestyle changes post-surgery. The success of bariatric surgery is not when the body recovers, but whether or not the weight loss is sustained in the long term.
Bariatric surgery comes in more than one form, and each works a little differently. Continue reading below to understand the different nuances of this surgery.
Different Types Of Bariatric Surgery
There is no single bariatric procedure that works for everyone. The right type depends on your weight, health conditions, lifestyle, and long-term goals. Here are the main types that are standardized in the medical world.
Gastric Balloon
What it is: A soft silicone balloon is inserted into the stomach through the mouth (no incisions needed) and filled with saline to reduce the space available for food.
How it helps: By taking up space in the stomach, it creates a feeling of fullness faster, helping you eat less and lose weight gradually.
Best suited for: Patients who need moderate weight loss, are not yet eligible for more invasive surgery, or want to reduce surgical risk by losing some weight first.
Things to know:
- Temporary insertion, typically removed after six months
- Does not involve cutting or removing any part of the stomach
- Requires a strong commitment to diet and lifestyle changes to maintain results after removal
Gastric Banding
What it is: An adjustable silicone band is placed around the upper part of the stomach, creating a small pouch that limits how much food can be consumed at one time.
How it helps: The restricted pouch means you feel full quickly, naturally reducing portion sizes and calorie intake over time.
Best suited for: Patients looking for a reversible, adjustable option with a lower surgical risk.
Things to know:
- The band can be tightened or loosened through a port placed under the skin
- Fully reversible – the band can be removed if needed
- Does not involve cutting or permanently altering the digestive tract
- Weight loss tends to be more gradual compared to other procedures
- Requires regular follow-up visits for band adjustments
Sleeve Gastrectomy
What it is: Approximately 75 to 80% of the stomach is permanently removed, leaving behind a narrow, sleeve-shaped tube roughly the size of a banana.
How it helps: The smaller stomach holds significantly less food. Additionally, the portion of the stomach removed is responsible for producing ghrelin (the hormone that triggers hunger). So, many patients also experience a notable reduction in appetite.
Best suited for: Patients with a high BMI who need significant, sustained weight loss and require a procedure without rerouting the digestive tract.
Things to know:
- One of the most commonly performed bariatric procedures
- Incurs permanent change; the removed portion of the stomach cannot be restored
- Does not affect the intestines, so nutrient absorption remains largely intact
- May reduce or eliminate conditions like type 2 diabetes and sleep apnea
Gastric Bypass (Roux-en-Y)
What it is: A small stomach pouch is created, and the digestive tract is rerouted so that food bypasses a large portion of the stomach and the upper small intestine.
How it helps: It works in two ways: the smaller pouch limits how much you can eat, and bypassing part of the intestine reduces how many calories and nutrients are absorbed. This dual mechanism makes it one of the most effective procedures for long-term weight loss.
Best suited for: Patients with severe obesity and multiple related health conditions, particularly type 2 diabetes, as the procedure often leads to rapid and significant improvement in blood sugar levels.
Things to know:
- Widely regarded as the gold standard of bariatric surgery
- Produces some of the most significant and sustained weight loss results
- Requires lifelong commitment to vitamin and mineral supplementation due to reduced nutrient absorption
- More complex procedure compared to sleeve gastrectomy
Mini Gastric Bypass
What it is: A simplified version of the traditional gastric bypass. A long, narrow stomach pouch is created and connected directly to the small intestine, bypassing a portion of it.
How it helps: Like the full gastric bypass, it restricts food intake and reduces calorie absorption but with fewer surgical steps and a shorter operating time.
Best suited for: Patients who are good candidates for bypass surgery but for whom a less complex approach is preferred.
Things to know:
- Shorter procedure with a potentially faster recovery
- Produces results comparable to traditional gastric bypass
- Also requires lifelong nutritional supplementation
Each of these procedures can be performed in one of the two advanced techniques. Let’s learn about them below.
Can Severe Obesity Be Treated Without Bariatric Surgery?
Yes, in some cases. Non-surgical options include medically supervised diet and exercise programmes, behavioural therapy, and weight loss medications. However, for patients with a BMI above 40 or obesity-related health conditions, these approaches often fail to produce sustained results. Bariatric surgery is typically considered when non-surgical methods have been genuinely tried and have not worked.
Laparoscopic Vs. Robotic Bariatric Surgery
Both laparoscopic and robotic bariatric surgery are minimally invasive, meaning no large incisions, less pain, and faster recovery compared to traditional open surgery. But they differ in how the surgeon operates and the level of precision involved.
Laparoscopic Surgery: In this type of surgery, the surgeon operates using long instruments and a small camera inserted through tiny incisions. The surgical area is visible on a 2D monitor.
Robotic Surgery: For a robotic procedure, the surgeon sits at a console and controls robotic arms fitted with instruments that can bend and rotate in ways human hands cannot. A magnified 3D view of the surgical area, combined with tremor filtration, allows for exceptional precision. This makes robotic surgery particularly valuable in complex cases, such as patients with very high BMI or those undergoing revision surgery.
In terms of weight loss outcomes, both techniques produce comparable results. The choice between the two largely depends on the complexity of your case, your surgeon's experience, etc.
Which Procedures Can Be Done With Each Technique?
| Procedure | Laparoscopic | Robotic |
|---|---|---|
| Gastric Balloon* | ✗ | ✗ |
| Gastric Banding | ✓ | ✓ |
| Sleeve Gastrectomy | ✓ | ✓ |
| Gastric Bypass | ✓ | ✓ |
| Mini Gastric Bypass | ✓ | ✓ |
| Revision Surgery | ✓ | ✓ Preferred — robotic precision is especially valuable when navigating scar tissue from a previous surgery |
Even though the outcomes of these techniques are comparable, the cost is not. Below is a rough estimate of what bariatric surgeries cost in Hyderabad.
How Much Does A Bariatric Surgery Cost?
Bariatric surgery is not a one-size-fits-all procedure, and neither is its cost. The price depends largely on which type of surgery your doctor recommends. If you have any existing health conditions, those can add to the cost because they require closer monitoring throughout the entire process. Other factors that add to the cost include the duration of hospital stay and pre- and post-operative tests and screenings like hormonal panels, ultrasound, and endoscopy.
Here is a rough range of the cost of different bariatric procedures in Hyderabad:
- Gastric Balloon: ₹2,00,000 to ₹2,50,000
- Gastric Banding: ₹2,50,000 to ₹3,00,000
- Sleeve Gastrectomy: ₹2,80,000 to ₹3,50,000
- Gastric Bypass: ₹3,00,000 to ₹4,00,000
Bariatric surgery may be covered under several insurance plans when it is medically necessary. However, the coverage may vary greatly, too. So, make sure to check with your insurance company before you opt for the procedure.
On top of surgical costs, you will need to stay on top of your medication and special diets for months, which can also add to the final cost. So, adequate financial planning is necessary.
Dr. Venu Gopal Pareek has performed hundreds of successful bariatric surgeries in Hyderabad and can guide you throughout the journey from planning to surgery to recovery to maintenance. Below is what makes him one of the best bariatric surgeons in Hyderabad.
Why Choose Dr. Venu Gopal Pareek For Bariatric Surgery?
Choosing the right surgeon for bariatric surgery is a life-changing decision, but Dr. Venu Gopal Pareek makes it easy with his patient-first approach. He takes the time to understand not just the medical profile of each patient, but also their personal health goals before crafting a tailored treatment plan. He is well-experienced in the latest bariatric surgical techniques and can ensure precision at every step. Alongside, his expert team helps patients navigate recovery with comfort and confidence. Bariatric surgery is meant for long-term weight management and not a quick fad. So, healthy lifestyle advice is always kept at the forefront of care.
With Dr. Pareek, patients are never alone in this mentally and physically exhausting health journey — from the very first consultation to life after surgery, every milestone is met with empathetic care and top-notch medical guidance.
FAQs
Can severe obesity be treated without bariatric surgery?
Yes, in some cases. Non-surgical options include medically supervised diet and exercise programmes, behavioural therapy, and weight loss medications. However, for patients with a BMI above 40 or obesity-related health conditions, these approaches often fail to produce sustained results. Bariatric surgery is typically considered when non-surgical methods have been genuinely tried and have not worked.
How much weight can I expect to lose after bariatric surgery?
This varies depending on the procedure, your starting weight, and how well you follow post-surgery lifestyle guidelines. According to data from the Michigan Bariatric Surgery Collaborative, patients can expect to lose between 55 to 85% of their excess body weight within the first year.
Will I need to be hospitalised after surgery?
Yes. Most patients stay in the hospital for two to three days after surgery. Some may even need to stay for longer.
At what age can someone undergo bariatric surgery?
Bariatric surgery is most commonly performed on adults between 18 and 65. In adolescents with severe obesity and related health conditions, it may be considered at a younger age. Older patients may also be evaluated on a case-by-case basis depending on overall health.
Will bariatric surgery affect my ability to eat normally?
Yes, your eating habits will change significantly, especially in the first few months. Portions will be much smaller, and you will need to eat slowly and mindfully. Over time, most patients adapt well. However, certain foods, especially high-sugar, high-fat foods, may cause discomfort.
Is there a risk of weight regain after bariatric surgery?
Yes, weight regain is possible if you do not follow dietary and lifestyle guidelines. This is why long-term follow-up, nutritional counselling, and behavioural support are considered essential parts of the bariatric journey, not optional add-ons.
Can I get pregnant after bariatric surgery?
Yes, many patients find that fertility actually improves after significant weight loss. However, it is generally recommended to wait at least 12 to 18 months after surgery before trying to conceive to ensure your body has stabilised and nutritional levels are adequate.
Is bariatric surgery covered by insurance in India?
Some insurance policies in India do cover bariatric surgery when it is deemed medically necessary.
How soon will I see results after surgery?
Most patients begin losing weight within the first few weeks. Significant changes are often visible within three to six months. Improvements in conditions like diabetes, blood pressure, and sleep apnea can sometimes be noticed even earlier, within weeks of the procedure.
What is revision bariatric surgery?
Revision bariatric surgery refers to a second procedure performed to modify, correct, or convert a previous bariatric surgery. It may be needed due to insufficient weight loss, weight regain, or complications from the original procedure.