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A congenital cardiac abnormality . . . and other stories

BMJ 2017; 359 doi: (Published 02 November 2017) Cite this as: BMJ 2017;359:j4981

Polycystic ovary syndrome

Insulin resistance and obesity are features of polycystic ovary syndrome and cross sectional surveys show strong associations with type 2 diabetes. A longitudinal population based study from Denmark (J Clin Endocrinol Metabolism doi:10.1210/jc.2017-01354) confirms the link and quantifies the risk. Among more than 18 000 women with polycystic ovary syndrome the incidence of type 2 diabetes was four times higher than in age matched controls, and the median age at diagnosis was 4 years younger.

Bicuspid aortic valves

Bicuspid aortic valves are the commonest congenital cardiac abnormality, present in 1% to 2% of people. Most bicuspid valves arise from a fusion of two leaflets of a tri-leaflet valve. In a …

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