Article révisé par les pairs
Résumé : The rational management of hypertension (HT) inevitably starts with accurate measurement of blood pressure (BP). Event-driven studies overwhelmingly indicated that out-of-the-office BP monitoring is a prerequisite for risk stratification and for identifying the need of initiating or adjusting antihypertensive drug treatment. 24-H ambulatory BP monitoring is the preferred method of BP measurement. It addresses major issues not covered by conventional or automated office BP measurement or home BP monitoring, such as reliably diagnosing nocturnal HT (the window of the day during which BP is most predictive of adverse cardiovascular outcomes), hypotension, or masked hypertension. This last condition affects 15% of the general populations and carries a risk equal to that of HT on both office and out-of-the-office BP measurement. Moreover, 24-h ambulatory BP monitoring is cost-effective. In conclusion, the overall evidence now overwhelmingly shows that ambulatory BP monitoring is mandatory for the proper management of HT. Health care providers should therefore facilitate access to this technique in both primary and specialized care.