Doctors are urged to measure blood pressure in both arms

A different systolic blood pressure in each arm is associated with increased risk of cardiovascular events including death, shows a large cohort study of people with no pre-existing vascular disease.1

Previous studies have shown reduced survival linked to a difference in blood pressure between arms in people with established vascular disease or high cardiovascular risk, but the potential association in the general population is unknown.

Researchers analysed blood pressure measurements taken …