24h ambulatory blood pressure monitoring (ABPM) can easily detect the circadian blood pressure (BP) pattern: usually, systolic and diastolic blood pressure (BP) show a nocturnal fall. Nocturnal BP values do not however always decline in essential hypertension: the subjects who show a nocturnal BP fall of at least 10% are called dippers; in other subjects, called non-dippers, BP behaviour is characterized by a lack of or very limited nocturnal BP fall. Several studies have investigated the relationship between the lack of or reduction of nocturnal BP fall (non-dipping pattern) and cardiovascular risk, showing not only an increase of target-organ damage (heart, brain, kidney), but a greater frequency of cardiovascular events (stroke, myocardial infarction, etc.
View Article and Find Full Text PDF