[After weight loss a child fits a smaller blood pressure cuff but gets elevated blood pressure]

A ten-year-old boy referred to childhood obesity treatment lost weight after one year of lifestyle intervention to a degree where he was no longer obese. Contrary to anticipated beyond the effect of a normal growth, his clinical blood pressure (BP) was higher after weight loss. This observation was caused by the use of a smaller BP cuff compared to a larger cuff at baseline. In general, weight loss in obese children during growth and development pose a challenge in regard to which BP cuff size should be used and in regard to interpretive challenges of the BP.