Controlling hypertension in the elderly

摘要

Hypertension is best defined as the level of blood pressure abovewhich treatment does more good than harm. This information comes fromthe results of ran- domized controlled trials, i.e. the evidencebase. However, we do not know the level of blood pressure At whichtreatment fails to confer an overall benefit. Such a level ispredicted to exist, as at lower levels of Blood pressure, few gain byhaving cardiovascular Events prevented yet all are at risk of theadverse Effects of treatment.