文摘
Obesity is now a critical global issue, as more than 2.1 billion people (nearly 30% of the world population) are either overweight or obese. It has been reported that , for every increase in body mass index of 5 kg/m2, there was a 30% overall higher mortality with a 40% increase in vascular mortality, a >50% increase in diabetic, renal and hepatic mortality. It has been proposed that all obese women should be encouraged to normalise their weight before embarking on a pregnancy. The most recently published multi-centre study, “The Upbeat” has concluded that a behavioural intervention addressing diet and physical activity in women with obesity during pregnancy is not adequate to prevent gestational diabetes, or to reduce the incidence of large for gestational age infants. Therefore not surprisingly, there is a huge public interest in bariatric surgery for managing morbid obesity. However question arises whether weight loss by this route does improve fertility potential of women without any adverse effects on the pregnancy outcome?