Reproducibility of morning blood pressure surge and its relation to blood pressure reactivity.
This study examined the stability of the morning blood pressure surge (MBPS) and its relation to blood pressure (BP) reactivity in untreated hypertensives. Thirty-six participants completed a stress task at baseline. Ambulatory BP monitoring was carried out three times on a weekday. The MBPS demonstrated small reproducibility and large coefficient of variation. The MBPS correlated with nighttime BP (p = 0.001) but not morning BP or BP reactivity. Dippers had greater MBPS than did nondippers (p < 0.05). The MBPS provides distinct information that is different from the BP response to mental stress.
Wang
Mei-Yeh
MY
Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University [corrected] Cardinal Tien College of Healthcare & Management, HsinTien, Taipei, Taiwan.
Huang
Chun-Jen
CJ
Chang
Nei-Chung
NC
Tsai
Pei-Shan
PS
D000328:Adult; D000704:Analysis of Variance; D001676:Biofeedback, Psychology / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology*; D018660:Blood Pressure Monitoring, Ambulatory / Q000706:statistics & numerical data; D002940:Circadian Rhythm / Q000502:physiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D015203:Reproducibility of Results; D013315:Stress, Psychological