Abstract:
BACKGROUND:Differences between the antihypertensive responses to drug therapy measured by office blood pressure (OBP) and ambulatory blood pressure monitoring (ABPM) techniques have been noted but rarely analyzed. We studied whether the OBP and 24-h ABPM responses to hydrochlorothiazide differ and, if so, the relevance of these differences. METHODS:The OBP and ABPM responses to hydrochlorothiazide (25 mg/d, for 4 weeks) were measured in 228 subjects with essential hypertension, and mean responses were compared between methods using the Student paired t test. To assess variation in the agreement between OBP and ABPM responses among subjects, the limits of agreement were calculated as the mean difference between OBP and ABPM responses +/-2 standard deviations. RESULTS:The mean systolic OBP response was 4.8 mm Hg greater than the response measured by ABPM (-14.3 v -9.5 mm Hg, P < .001), and the mean diastolic OBP response was 2.1 mm Hg greater than the response measured by ABPM (-7.5 v -5.5, P < .001). The limits of agreement between the OBP and ABPM responses ranged from -18.7 to +28.2 mm Hg for systolic response and from -12.9 to +17.1 mm Hg for diastolic response. The systolic and diastolic OBP and ABPM responses were in opposite directions in 22.8% and 23.7% of the subjects, respectively. CONCLUSIONS:Compared to ABPM, OBP overestimates the mean systolic and mean diastolic blood pressure responses to hydrochlorothiazide. Variation among subjects in the magnitude and direction of responses renders OBP an unreliable predictor of ABPM responses.
journal_name
Am J Hypertensjournal_title
American journal of hypertensionauthors
Finkielman JD,Schwartz GL,Chapman AB,Boerwinkle E,Turner STdoi
10.1016/j.amjhyper.2004.10.021subject
Has Abstractpub_date
2005-03-01 00:00:00pages
398-402issue
3eissn
0895-7061issn
1941-7225pii
S0895-7061(04)01091-Xjournal_volume
18pub_type
临床试验,杂志文章abstract::Most antihypertensive drugs act by counteracting vasoconstrictor mechanisms and lower blood pressure by lowering vascular resistance. The beta-blockers, which have the unique feature of counteracting cardiac sympathetic drive, seem to be a major exception to this generalization. Moreover, their degree of cardiodepress...
journal_title:American journal of hypertension
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journal_title:American journal of hypertension
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journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:
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abstract::It is likely that a number of independent heritable traits, each encoded by a singular gene, contribute to pathologic elevations in blood pressure in humans. Genetic polymorphisms of individual genes may result in intermediate phenotypes which, by themselves, do not raise blood pressure, but, coupled with environmenta...
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:American journal of hypertension
pub_type: 杂志文章
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pub_type: 临床试验,杂志文章
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journal_title:American journal of hypertension
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:American journal of hypertension
pub_type: 杂志文章
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journal_title:American journal of hypertension
pub_type: 杂志文章
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journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(99)00214-9
更新日期:2000-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2000-05-01 00:00:00
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journal_title:American journal of hypertension
pub_type: 杂志文章,多中心研究
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pub_type: 杂志文章
doi:10.1016/j.amjhyper.2004.06.007
更新日期:2004-10-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,多中心研究
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