Weight loss surgery reduces cancer risk

Obese people who have bariatric surgery can cut their risk of cancer-related cancers and mortality by nearly half, according to some studies.

Obesity is divided into three categories: type one with a BMI between 30 and under 35, type 2 between 35 and under 40, and type 3 with a BMI of 40 or more. Bariatric surgery is performed when the person has a BMI of 40 or higher (category 3). However, BMIs between 35 and less than 40 (category 2) may warrant surgery if they have conditions related to diabetes, stroke, cardiovascular disease, high blood pressure, fatty liver, certain types of cancer, and more. cancer (pancreatic cancer, colon cancer)…

According to the Centers for Disease Control and Prevention (CDC), obesity increases the risk of 13 types of cancer, accounting for 40% of all patients diagnosed with tumors each year in the US. Excess weight can accelerate tumor growth because it causes inflammation, impairs the body’s ability to use the hormone insulin to turn sugar from food into energy, and increases production of sex hormones. role in the development of some cancers.

The researchers compared the risk of cancer diagnosis and death for more than 30,000 people with obesity, including more than 5,000 people who had liposuction surgery. Surgery was associated with a 32% reduction in the risk of cancer and a 48% reduction in the risk of dying from cancer.

Ali Aminian, director of the Institute of Metabolism and Disease at Cleveland Clinic (USA) shared with the newspaper Everyday Health, patients lose 20-40% of their body weight after weight loss surgery and can maintain for many years. The study’s findings indicate that the greater the weight loss, the lower the risk of obesity-related cancers.

Weight loss surgery helps to lose many kilograms, and it is possible to maintain weight with the right diet and exercise. Image: Freepik

People who underwent bariatric surgery lost an average of 25.5 kg after 10 years and significantly reduced their risk of obesity-related cancers, including melanoma of the breast, ovary, and mucous membranes. uterus, colon, liver, pancreas and thyroid gland. About 4.9% of obese people who do not have surgery will develop these tumors. Meanwhile, the rate was 2.9% for those who had weight loss surgery.

In addition to reducing inflammation, weight loss can reduce estrogen levels (especially a known risk factor for breast cancer) and beneficial changes in the gut microbiome. Those who underwent breast surgery had a lower risk of developing breast cancer during the 10-year study period (1.4%) than those who did not have surgery (2.7%).

A study published June 3 in the journal JAMA found that laminectomy reduces the risk of diagnosis and death from all cancers, including tumors unrelated to obesity. After 10 years, the mortality rate in the surgical group was 0.8% compared with 1.4% in the no surgery group. Many people after weight loss surgery continue to maintain a healthy lifestyle such as limiting alcohol, smoking, paying attention to diet and exercising regularly. This also helps to reduce the risk of cancer.

Slimming surgery has many forms such as gastric bypass, endoscopic weight loss balloon, gastric banding … the above methods aim to reduce stomach size, create a feeling of fullness quickly, and reduce consumption. food. However, shortening or changing the structure of the digestive tract entails a number of consequences such as slowing down the digestion of food, poor absorption of nutrients, risks during surgery.

The limitation of this study is that the majority of the participants were white women. Therefore, results may differ for men and individuals from other racial and ethnic groups.

Baby Tieu
(Follow Everyday Health, Healthline)


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