| QT dispersion in dipper- and nondipper-type hypertension. | |
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MedLine Citation:
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PMID: 9544867 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to identify the relationship of QT dispersion on 12-lead electrocardiograms and left ventricular mass index on echocardiograms associated with the circadian rhythm of blood pressure (BP). Heart rate and BP were monitored every 30 min for 48 h in 62 patients with essential hypertension using an ambulatory BP monitoring device. The patients were divided into four groups according to gender and circadian BP pattern (nocturnal BP dipper or nondipper). The patients were classified as dippers if their daytime BP decreased by at least 10% during the night and all the other subjects were classified as nondippers. Age, body mass index, and 48-h mean BP were similar among the four groups. During the night-rest period, the systolic and diastolic BP were significantly decreased in dipper-type hypertensives. The maximum QTc interval and QTc dispersion were longer in nondippers than in dippers. Left ventricular mass index (LVMI) had a tendency to increase in nondippers. The nocturnal reduction of BP significantly correlated with QTc dispersion and LVMI. The QTc dispersion significantly correlated with LVMI and interventricular septum thickness. |
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Authors:
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I Kohno; M Takusagawa; D Yin; M Okutani; Y Mochizuki; S Sano; T Ishihara; H Ishii; H Ijiri; S Komori; K Tamura |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of hypertension Volume: 11 ISSN: 0895-7061 ISO Abbreviation: Am. J. Hypertens. Publication Date: 1998 Mar |
Date Detail:
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Created Date: 1998-05-01 Completed Date: 1998-05-01 Revised Date: 2009-02-24 |
Medline Journal Info:
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Nlm Unique ID: 8803676 Medline TA: Am J Hypertens Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 280-5 Citation Subset: IM |
Affiliation:
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Second Department of Internal Medicine, Yamanashi Medical University, Tamaho, Nakakoma, Japan. ikohno@res.yamanashi-med.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Blood Pressure / physiology Circadian Rhythm / physiology Echocardiography Electrocardiography* Female Heart Septum / ultrasonography Heart Ventricles Humans Hypertension / physiopathology*, ultrasonography Male Middle Aged |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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