What is Weight Loss Surgery?

Deciding on weight loss surgery is a significant step, but it’s not overly difficult to understand. This article compiles everything you need to know, so you can confidently move forward with this important life change.

Weight loss surgery (Bariatric Surgery) is a surgical procedure to reduce the size of the stomach or alter the digestive tract. This limits the amount of food consumed or reduces nutrient absorption, leading to sustainable weight loss. This type of surgery is often an option for patients with severe obesity who have struggled to lose weight through other methods.

Common Weight Loss Surgery Techniques:

Currently, there are two popular minimally invasive (laparoscopic) weight loss surgery techniques:

• Sleeve Gastrectomy: This technique involves surgically removing a large portion of the stomach, reducing it to about 20% of its original size, resembling a sleeve. Its key advantages include minimal alteration to the digestive tract, reduced stomach capacity (leading to less food intake), and a decrease in the hunger hormone (Ghrelin).
• Roux-en-Y Gastric Bypass (RYGB): This technique creates a very small stomach pouch (approximately 30 milliliters) and then connects it directly to the middle section of the small intestine, shortening the digestive pathway. Its key advantages are significant restriction of food intake and substantial reduction in nutrient absorption. It also has an excellent effect on hormones that control appetite and blood sugar levels.

Criteria for Weight Loss Surgery Eligibility

Doctors determine a patient’s suitability for weight loss surgery based on international standard criteria for Body Mass Index (BMI). The criteria are as follows:

• BMI greater than 37.5 without co-existing chronic diseases.
• BMI greater than or equal to 32.5 with co-existing obesity-related conditions such as diabetes, high blood pressure, or high cholesterol.
• BMI greater than 27.5 and suffering from severe diabetes that cannot be controlled with conventional medication.
• Patients must be between 18 and 65 years old, as being too young or too old may affect the safety and outcome of the surgery.

Important Note: Weight loss surgery is not exclusively for patients with severe obesity. Individuals with a BMI of 27.5 or higher, who are considered at high risk for developing diabetes, can also consult with a doctor to consider surgical options for obesity treatment.

Benefits of Weight Loss Surgery for Obesity Treatment

• Significant and Rapid Weight Loss: Most patients can lose 50-80% of their excess weight within the first 1-2 years, which is more than what can be achieved with other methods like diet or exercise alone.
• Long-term Weight Maintenance: Once weight is lost, there is a lower chance of regaining it if the patient consistently adjusts their eating habits and lifestyle according to medical advice.
• Effective Control and Treatment of Obesity-Related Co-morbidities:
  • Type 2 Diabetes Improvement or Remission: Numerous studies confirm that bariatric surgery can normalize blood sugar levels in Type 2 diabetes patients or significantly reduce the amount of medication needed.
  • Control of High Blood Pressure and High Cholesterol: Significantly reduces blood pressure and unhealthy cholesterol levels.
  • Resolution of Sleep Apnea: Snoring and sleep apnea symptoms noticeably improve, leading to better sleep quality.
  • Relief from Joint and Bone Pain: Reduced body weight lessens the burden on joints like knees and hips, decreasing pain and improving mobility.

In simple terms, weight loss surgery is not just about “losing weight”; it is an effective “treatment for obesity” and its “related complications,” leading to comprehensive health improvements and a sustainably better quality of life for patients.