Study: Losing weight with surgery extends lifespan
Some resort to surgery in order to get rid of excess weight, a complex process that may have health complications.
But in general, it is safe and reliable to lose excess weight, which can cause many diseases.
According to a study conducted by the "Cleveland Clinic", weight loss resulting from surgery of between 5 and 10 percent is associated with increased life expectancy and improved cardiovascular health.
Compared to non-surgical treatment, about 20% weight loss through lifestyle-based therapies is required to achieve similar benefits.
Bariatric surgery and the health benefits it provides
The results of the study conducted by the prestigious American medical institution and published in the October issue of Annals of
Surgery, showed that bariatric surgery may contribute to achieving health benefits independent of those achieved by weight loss through lifestyle improvement methods.
The study, which followed more than 7,000 patients at the Cleveland Clinic in the US, matched 1,223 patients with obesity and type 2
diabetes who underwent weight loss surgery (medically known as metabolic surgery) with 5,978 patients who received standard medical care.
And about 80% of the patients had high blood pressure, and 74% had dyslipidemia (high triglycerides and cholesterol), while 31% of them were taking insulin to treat diabetes.
The effects of weight loss were studied using different statistical models, to determine the minimum weight loss needed to reduce the
risk of death and adverse cardiovascular events, such as coronary artery injury, cerebrovascular injury, cardiac arrest, renal failure and atrial fibrillation.
“It appears that the risk of death after weight loss was reduced by 5%, while the risk of major heart complications after weight loss decreased by 10%, as a result of undergoing Patients for weight loss
surgery. In the group of patients who received non-surgical treatment, the risk of death and major cardiovascular complications was reduced after a loss of approximately 20% of body weight.”
Dr. Stephen Nissen, chief academic officer of the Cardiovascular and Thoracic Institute at Cleveland Clinic and senior author of the study, said less weight loss with surgery has greater benefits for heart health
than more weight loss through lifestyle changes. "The results indicate that there are important benefits of bariatric surgery regardless of the amount of weight loss achieved," he added.
The study, which bore the acronym STAMPEDE, showed the beneficial effects of bariatric or metabolic surgery in controlling blood glucose.
Additional studies have shown health benefits other than weight loss after these surgeries.
This research study is a secondary analysis of a large study, which showed that weight-loss surgery was associated with a 40% reduced risk of death and heart complications in patients with obesity and type 2 diabetes.
Researchers continue to study physiological changes in the surgically modified gastrointestinal tract and their effect on hormone secretion and the human microbiome.
More research is needed to deepen understanding of the mechanisms underlying the health benefits of metabolic surgery in patients with obesity and type 2 diabetes.