The primary Objective of this study is to assess the benefit of the ABPM in the diagnosis and management of arterial hypertension in by Cardiologists.
The Secondary Objectives are:
* To identify the conditions of usage of ABPM for the diagnosis of arterial hypertension,
* To evaluate the blood pressure during the ABPM assessment and at 6 weeks of follow up
* To describe the study population (socio-demography),
* To describe the therapeutic stratégies and the compliance to treatment.