title: Reproducibility of morning blood pressure surge and its relation to blood pressure reactivity.
abstract: 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.
authors.affiliation: Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University [corrected] Cardinal Tien College of Healthcare & Management, HsinTien, Taipei, Taiwan.
authors.forename: Mei-Yeh
authors.initials: MY
authors.lastname: Wang
authors.forename: Chun-Jen
authors.initials: CJ
authors.lastname: Huang
authors.forename: Nei-Chung
authors.initials: NC
authors.lastname: Chang
authors.forename: Pei-Shan
authors.initials: PS
authors.lastname: Tsai
mesh_terms: 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