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  • Title: The correlation of office blood pressure and 24-hour ambulatory measurements in hypertensive patients - comparison between non-pharmacological treatment and antihypertensive medication.
    Author: Dzien A, Pfeiffer K, Dzien-Bischinger C, Hoppichler F, Lechleitner M.
    Journal: Eur J Med Res; 2000 Jun 20; 5(6):268-72. PubMed ID: 10882643.
    Abstract:
    Blood pressure control in many hypertensive patients remains imperfect, also because routine office blood pressure can only give limited information about diurnal variations and nocturnal dipping. It was the aim of our evaluation to study the efficacy of antihypertensive therapy and the correlation between repeated office blood pressure values and 24-hour ambulatory measurements in hypertensive outdoor patients treated by life-style modification and antihypertensive medication. Clinical data and blood pressure values in 343 outdoor patients who were admitted to the medical centre for diagnostic and therapeutic procedures in hypertension were evaluated. Database was created from 1991 to 1998. The study population (mean age 59.5 +/- 11.6 years) comprised 153 men and 190 women, 141 (41%) were treated by life-style modification, 202 (59%) received antihypertensive medication. 57 patients showed symptoms of a metabolic syndrome, 62 suffered from manifest diabetes mellitus type 2. - Repeated office blood pressure measurements showed a significant positive correlation to the systolic and diastolic values obtained by 24-hour blood controls. While diastolic night minima revealed a positive correlation to office measurements (R = 0. 211; P <0.05), systolic night minima showed no correlation to office pressure control. In the whole study population and in subgroups (metabolic syndrome, diabetes mellitus) patients under antihypertensive medication still revealed significantly higher mean 24-hour systolic blood pressure values (140.5 +/- 16.9 mm Hg) than patients treated by life-style modification (133.0 +/- 14.4 mm Hg; P <0.001). Diastolic day- and night-time difference (dipping) was less pronounced in patients with antihypertensive medication. For appropriate antihypertensive therapy 24-hour blood pressure measurements are thus of advantage to repeated office controls especially to optimize medication for high systolic blood pressure values and adapt therapy to the nocturnal decrease of blood pressure values (dipping).
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