Latest study lends support to experts who say more operations should be carried out in UK.
Obese patients undergoing stomach-shrinking surgery have half the risk of death in the years that follow compared with those tackling their weight through diet and behaviour alone, new research suggests.
Experts say obesity surgery is cost-effective, leads to substantial weight loss and can help tackle type 2 diabetes. But surgeons say not enough of the stomach-shrinking surgeries are carried out in the UK, with figures currently lagging behind other European countries, including France and Belgium – despite the latter having a smaller population. “We don’t think this [new study] alone is sufficient to conclude that obese patients should push for bariatric surgery, but this additional information certainly seems to provide additional support,” said Philip Greenland, co-author of the latest study from Northwestern University.
A second, smaller study in the same journal also highlighted benefits of bariatric surgery, comparing diabetes-related markers in obese adults who had lived with a diagnosis of type 2 diabetes for an average of nine years. Participants either received two years of intensive diet, exercise and medical management or, in addition, had bariatric surgery.
The results from 113 participants reveal that complications were more common among those who had had bariatric surgery, but that one year after the study began they had lost more weight on average, with a greater proportion having reached the combined targets for cholesterol, systolic blood pressure and a marker of glucose.
While this proportion fell for both groups after five years – at which point 98 patients were still providing data – those who had had bariatric surgery maintained the edge, with 23% reaching the combined targets, compared to just 4% of those offered lifestyle and medical interventions alone.
Francesco Rubino, professor of metabolic and bariatric surgery at King’s College London, who was not involved in the studies, said misunderstandings and stigma were holding back greater use of such operations in the UK. While Rubino noted that surgery is not for everyone, he added “This is a conversation GPs and doctors should have with patients more often.”