Weight-Loss Surgery Maintains Results Over Decade, Study Confirms
New research demonstrates that obese patients who undergo weight-loss surgery successfully maintain their reduced weight for more than ten years following the procedure. The study provides compelling evidence for sleeve gastrectomy as a durable alternative to weight-loss injections, particularly as research shows patients often regain weight quickly after discontinuing pharmaceutical treatments.
Long-Term Benefits of Sleeve Gastrectomy
Researchers from Assuta Medical Center in Tel Aviv, Israel, conducted a comprehensive ten-year study involving 300 patients. Their findings reveal that sleeve gastrectomy not only produces significant weight reduction but also substantially improves patients' long-term quality of life. A decade after surgery, participants maintained an average weight reduction of 25 percent compared to their pre-surgery measurements.
The study, published in the Obesity Journal, indicates that only 6 percent of patients reported being in worse condition than before their surgery, with insufficient weight loss being the primary reason for dissatisfaction.
Surgical Procedure Details and NHS Trends
During a sleeve gastrectomy, surgeons remove approximately 70 to 80 percent of the stomach, creating a narrow "sleeve" roughly the size and shape of a banana. This procedure is typically performed laparoscopically, involving small abdominal incisions through which surgeons work using specialized cameras and instruments.
NHS data published last week confirms that gastric surgery rates are increasing significantly, with 7,000 weight-loss surgeries recorded in England during 2025 – representing an increase of approximately 1,600 procedures compared to the previous year.
Patient Outcomes and Eligibility Requirements
Research indicates most patients lose between 50 and 70 percent of their excess body weight within the first one to two years following surgery. To qualify for NHS-funded weight-loss surgery, patients must meet specific criteria including having a body mass index (BMI) over 35 and experiencing weight-related health conditions such as diabetes or high blood pressure.
Additionally, patients must demonstrate that surgical intervention represents their last resort after attempting other weight-loss methods without sustainable success.
Expert Perspectives and Safety Considerations
The study authors emphasized: "This reaffirms the effectiveness of laparoscopic sleeve gastrectomy in achieving substantial weight loss, enhancing quality of life, and promoting long-term adoption of healthier lifestyle behaviours."
Medical experts caution that potential side effects include blood clots, hernias, and gallstones, with approximately one in 200 procedures resulting in mortality. These risks underscore the importance of thorough patient evaluation and post-operative care in bariatric surgery programs.
