[Cardiovascular and cerebrovascular disease]

Area of Science:

• Cardiovascular Physiology
• Autonomic Nervous System Regulation
• Circadian Rhythms

Context:

• Ambulatory blood pressure monitoring (ABPM) is crucial for assessing 24-hour blood pressure (BP) patterns.
• Normal circadian BP variation involves a nocturnal decline of 10-20% (dipper pattern).
• Abnormal circadian BP patterns, including non-dipper, riser, and extreme-dipper, are associated with adverse health outcomes.

Purpose:

• To elucidate the relationship between circadian blood pressure patterns and end-organ damage.
• To highlight the clinical significance of abnormal nocturnal blood pressure dipping.

Summary:

• Circadian BP patterns are primarily regulated by the autonomic nervous system.
• Deviations from the normal dipper pattern (e.g., non-dipper, riser, extreme-dipper) are linked to increased risks.
• Conditions like heart failure and cerebral vascular disease (CVD) exhibit a high prevalence of abnormal circadian BP patterns and can also be associated with altered nocturnal BP dipping.

Impact:

• Understanding abnormal circadian BP patterns is vital for predicting prognosis.
• Identifying non-dipper patterns can aid in early detection of cardiovascular risks.
• This knowledge can inform clinical management strategies for patients with cardiovascular disease and heart failure.