If you’re going to indulge in anticipatory medicine, it is best to anticipate those at highest risk. An elegant study by Wald et al in the NEJM shows how precision primary prevention can be done. The researchers screened toddlers, who presented routinely to their general practitioners for vaccinations, for an uncommon, but not rare, familial predisposition to high cholesterol known as heterozygous familial hypercholesterolemia (FH), in which premature cardiovascular death can be deferred by statins and lifestyle changes. Blood drawn from the toddlers by a heel prick was tested for serum cholesterol and genetic mutations indicative of heterozygous familial hypercholesterolemia (FH). The parents of toddlers who met criteria for FH were also tested for cholesterol and genetic mutations. Obviously, identifying affected parents and increasing their longevity is also beneficial for their children.

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