0966 Dipping Pattern of Nocturnal Blood Pressure and Depressive Symptoms

Nocturnal sodium excretion, blood pressure dipping, and sodium sensitivity.

More than 30 years ago, Guyton1 described pressurenatriuresis: increasing arterial blood pressure promotes sodium excretion, decreasing blood volume and lowering blood pressure, whereas when blood pressure falls, sodium excretion decreases, and blood volume and blood pressure increase.1,2 The linchpin of the model of Guyton et al3 is the concept of feedback gain. Gain is the degree to which a f...

Health Psychology Neighborhood Problems and Nocturnal Blood Pressure Dipping

Dipping comes of age: the importance of nocturnal blood pressure.

It is now just 21 years since the dipping phenomenon was described in a letter to The Lancet.1 In a cohort of 123 consecutive patients who had ambulatory blood pressure (BP) measurement (ABPM) performed, the majority (83%) were dippers on the basis of having a difference of 10/5 mm Hg between day and nighttime BPs, with 17% being nondippers. The nondippers had a significantly higher frequency o...

Nocturnal blood pressure dipping in the hypertension of autonomic failure.

Blood pressure (BP) normally decreases during the night. Absence of this phenomenon (nondipping) is associated with increased cardiovascular risk. Altered autonomic and endocrine circadian rhythms are suspected to play a role. Patients with peripheral autonomic failure offer a unique opportunity to study this phenomenon, because approximately 50% develop supine hypertension despite very low aut...

Nocturnal blood pressure dipping in acute ischemic stroke.

OBJECTIVES We aim to assess the impact of early nocturnal blood pressure (BP) variation in the functional outcome of patients after an acute ischemic stroke. MATERIALS AND METHODS We included consecutive stroke patients treated with intravenous thrombolysis (IVrtPA) in a tertiary stroke center. BP measurements were performed at regular intervals throughout day and night during the first 48 h ...