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The Journal of Clinical Endocrinology & Metabolism
Article . 2006 . Peer-reviewed
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Increased Pulse Wave Velocity in Subclinical Hypothyroidism

Authors: Yoshikazu Hiura; Toshiki Nagasaki; Kumi Shirakawa; Eiji Ishimura; Masaaki Inaba; Yasuro Kumeda; Shinsuke Yamada; +2 Authors

Increased Pulse Wave Velocity in Subclinical Hypothyroidism

Abstract

Subclinical hypothyroidism affects 5-15% of the general population and is associated with increased morbidity from cardiovascular disease. Brachial-ankle pulse wave velocity (baPWV) is a parameter of arterial stiffening and a good independent predictor for the presence of coronary artery disease. This study was performed to assess whether subclinical hypothyroidism might cause enhanced baPWV.baPWV was examined in subclinical hypothyroid patients (n = 50) and normal control subjects (n = 50).Diastolic blood pressure (DBP), a main risk factor for cardiovascular disease, and baPWV were both significantly higher in subclinical hypothyroid patients than normal subjects. baPWV was significantly positively correlated with age and systolic, diastolic, and pulse pressure and significantly negatively correlated with pulse rate in both subclinical hypothyroid patients and normal subjects. In contrast, there was no significant correlation of baPWV with free T3, free T4, TSH, total, high-density lipoprotein- and low-density lipoprotein-cholesterol, and the preejection time to ejection time ratio. A comparison of individual values of baPWV and DBP and regression slopes in two groups revealed that baPWV values increase to a larger extent than the increase in DBP in subclinical hypothyroid patients. In both groups, stepwise regression analysis showed a significant and independent association of DBP with baPWV.The present study demonstrated significant increases of baPWV and DBP in subclinical hypothyroid patients. Furthermore, the results suggest that increased DBP might be one of the main factors responsible for increased arterial stiffening in subclinical hypothyroid patients.

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Keywords

Male, Thyroid Hormones, Reproducibility of Results, Blood Pressure, Stroke Volume, Arteries, Middle Aged, Lipids, Ventricular Function, Left, Hypothyroidism, Cardiovascular Diseases, Risk Factors, Humans, Regression Analysis, Female, Aged

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    102
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
102
Top 10%
Top 10%
Top 10%
bronze