Prehypertension was defined by the VII JNC report as systolic blood pressure : 120 to 139 mm Hg and and diastolic blood pressure 85 to 89 mm Hg. The ESH/ISH guidelines define prehypertension as borderline blood pressure values as high normal blood pressure values. This new category is a continuum from prehypertension to hypension and is a risk factor for cardiovascular disease. The extent of the additional risk imposed by prehypertension depends upon additional cardiovascular risk factors and upon additional damage to the cardiovascular system.
Prehypertension, like most cases of hypertension is asymptomatic. The diagnosis will be made only if blood pressure is measured measured. If prehypertension is diagnosed- follow up and non-pharmacologic measures are recommended.
Most people will join the "prehypertensive club". Since blood pressure rises with aging, most pople will reach values that will introduce them into the "club". Additional risk factors will have an effect like- way of life, physical activity, alcohol drinking, smoking, stress and weight excess. Those should be approached too before pharmacological trearment will be considered in specific subgroups of patients.