Key result
Calculating ambulatory blood pressure using true sleep/wake times yielded significantly higher daytime and lower nighttime BP compared to arbitrary fixed periods (P < .05).
Why the study?
Does calculating ambulatory blood pressure over true sleep/waking cycles compared to arbitrary periods alter daytime and nighttime BP values and hypertension classification in individuals undergoing 24-hour monitoring?
Population
88 individuals, including 55 untreated hypertensives (office BP > 140/90 mm Hg) and 33 normotensives
Comparison
Calculation of mean daytime and nighttime… vs Calculation of mean daytime and nighttime…
Design
Cross-sectional
Follow-up
24 hours
Authors
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May alter ABPM-based hypertension classification; leaves open whether sleep-adjusted analysis improves outcome prediction.
Cross-Sectional (n=88)
Does calculating ambulatory blood pressure over true sleep/waking cycles compared to arbitrary periods alter daytime and nighttime BP values and hypertension classification in individuals undergoing 24-hour monitoring?
p-value: p=< .05
Calculating ambulatory blood pressure using true sleep/wake times rather than arbitrary fixed periods significantly alters BP values and can reclassify patients from normotensive to hypertensive.
Philippe Gosse (1996) conducted a cross-sectional in Hypertension (n=88). True sleep/waking cycle blood pressure calculation vs. Arbitrary period blood pressure calculation (6 AM to 10 PM daytime, 10 PM to 6 AM nighttime) was evaluated on Mean daytime and nighttime blood pressure (p=< .05). Calculating ambulatory blood pressure using true sleep/wake times yielded significantly higher daytime and lower nighttime BP compared to arbitrary fixed periods (P < .05).
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