The use of bariatric surgery as an obesity treatment for superobese patients has been called into question by a new study.
Research led by Dr David Arterburn at the Group Health Research Institute in Seattle focused on a group of 856 veterans with an average body mass index of 48.7 - anything above 40 is categorised as class III obesity and over 50 is superobesity.
The study stated that the use of bariatric surgery in future should be based on how positive the results are in terms of long-term health.
Dr Arturburn and his colleagues found that the risk of death is higher in the cases of superobese patients.
He explained: "The results of this study should inform discussions with patients with regard to the potential risks and benefits of bariatric surgery."
Recent research at the University of Texas indicated that those people suffering from obesity also have an increased risk of pancreatic cancer.