Women Hypertensive and Young-Renal Denervation

Investigators will include women with essential hypertension, treated or untreated, who are planning a short term pregnancy (D0). If high blood pressure is confirmed by ABPM after one month without treatment (D30), investigators will proceed to the arteriography during which they will be randomized in the renal denervation group or in the control one. After the randomization, BP monitoring by Home BP measurement will be performed every month and send to the investigator. Then the patient will benefit from a new ABPM two months after the intervention (D100), and she may stop contraception and may become pregnant. BP will be monitored during pregnancy by home BP and by a new ABPM at the beginning of the 6th month of pregnancy as well as one, one month after delivery. From the D100, the patient will be able to start an antihypertensive treatment at any time depending on HBPM or ABPM.