Links to evidence based literature regarding obesity and weight loss surgery.

Bariatric Surgery versus Intensive Medical Therapy for Diabetes — 5-Year Outcomes.

Five-year outcome data showed that, among patients with type 2 diabetes and a BMI of 27 to 43, bariatric surgery plus intensive medical therapy was more effective than intensive medical therapy alone in decreasing, or in some cases resolving, hyperglycemia.

N Engl J Med 2017;376:641-51.

Bariatric Surgery in the United Kingdom: A Cohort Study of Weight Loss and Clinical Outcomes in Routine Clinical Care.

Bariatric surgery is associated with weight-loss, sustained at least 4 years after surgery. This weight-loss is accompanied by improvements in pre-existing type 2 diabetes and hypertension, as well as reducing the risk of type 2 diabetes, hypertension, angina, heart attack, and obstructive sleep apnoea.

PLOSMedicine|DOI:10.137/journal. pmed. 1001925 December 22, 2015.

Probability of an Obese Person Attaining Normal Body Weight: Cohort Study Using Electronic Health Records

The probability of attaining normal weight or maintaining weight loss is low. Obesity treatment frameworks grounded in community-based weight management programs may be ineffective.

Am J Public Health. 2015 Sep; 05(9):e54-9

Long-term Outcomes of Bariatric Surgery: A National Institutes of Health Symposium.

Several small randomised controlled trials showed greater weight loss and type 2 diabetes remission compared to non-surgical treatments within the first 2 years of follow-up after bariatric surgery. Large, long term observational studies show durable (>5 years) weight loss, diabetes and lipid improvements with bariatric surgery.

JAMA Surg . 2014 December ; 149(12): 1323–1329.

Bariatric Surgery: an updated systematic review and meta-analysis, 2003-2012.

Sleeve gastrectomy appeared to be comparable to gastric bypass with regards to weight-loss. Bariatric surgery provides substantial and sustained effects on weight-loss and improves obesity-related comorbidities in the majority of bariatric patients.

JAMA Surg. 2014 March 1; 149(3): 275–287.

Contraceptive needs of women following bariatric surgery

BMJ Sexual & Reproductive Health: 2014; 40 (4)

Review of the key results from the Swedish Obese Subjects (SOS) trial – a prospective controlled intervention study of bariatric surgery.

The incidence in rates of cardiovascular disease events and cancer as well as overall mortality are reduced by bariatric surgery. No other obesity treatments have such documented effects. Quality of life is also improved.

The Association for the Publication of the Journal of Internal Medicine Journal of Internal Medicine, 2013, 273; 219–234.

Does dieting make you fat? A twin study

The findings in twins suggest that dieting per se is associated with later weight gain independent of genetic effects.

International Journal of Obesity 2012; 36: 456–464.

Bariatric Surgery: A Systematic Review and Meta-analysis.

Effective weight loss was achieved in morbidly obese patients after undergoing bariatric surgery. A substantial majority of patients with diabetes, hyperlipidaemia, hypertension, and obstructive sleep apnoea experienced complete resolution or improvement.

JAMA. 2004;292:1724-1737.

Extended and standard duration weight-loss programme referrals for adults in primary care (WRAP): a randomised controlled trial

The Lancet 2017; 389:2214-2225.