LAUSR

Objective: Nocturnal hypertension is associated with an increased risk of major cardiovascular events. Patients with Isolated nocturnal hypertension (INH) had more severe target-organ damage. A ’non-dipping’ Blood Pressure profile is associated with a high cardiovascular risk. The diagnosis of these two entities is easy by ambulatory blood pressure monitoring(ABPM). The aim of this study is to describe the prevalence of nocturnal hypertension and to study the dipping profile in hypertensive patients Design and method: Our study is retrospective, it includes all patients referred for diagnosis of hypertension; Before high blood pressure levels or high normal tension in whom the diagnosis is confirmed by ABPM, and the known hypertensives oriented for evaluation. A Schiller MT-300 with BR-102 plus program was used for the ABPM. 46 measures required to validate the ABPM. We studied the mean of the blood pressure over the 24 hours, the mean pressure night and day and the profile dipping in all the patients. Nocturnal hypertension and dipping profile values are those defined by ESC/ ESH 2013 and AHA/ASA 2015. Results: Twenty seven patients included in our series. It is 15 men (55%) and 12 women (45%). Mean age is 54 years [35–80 years]. Twenty five patients (93%) had nocturnal hypertension, Six (22%) of whom had isolated nocturnal hypertension. Patients with INH are six, they are 3 men and 3 women, mean age 50.5 years (43 - 59) years. Hypertension is systolic-diastolic in three patients, diastolic isolated in two patients and systolic isolated in one. The dipping profile in our series, it is normal in nine patients, 12 patients (44%) are non dippers, four Reverse dipping (15%) and two extrem dipping. Conclusions: The prevalence of isolated nocturnal hypertension is high in our series (22% of patients) and The non dipping Blood pressure is also very common (60%), together, these entities are regarded as important harbingers of poor cardiovascular prognosis. The ambulatory blood pressure monitoring(ABPM) in hypertensive patients at diagnosis and during progression is the only non-invasive way to detect nocturnal hypertension and to analyse dipping profile.