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- W2044897750 abstract "Primary hyperparathyroidism (PHPT) is associated with increased cardiovascular risk, although the mechanisms involved remain unclear. Recent evidence has shown increased pulse pressure to be a powerful predictor of cardiovascular events. As increases in pulse pressure are due largely to arterial stiffening, we measured arterial stiffness in 21 subjects with PHPT (18 women and 3 men; 46-71 yr old) and 21 age- and sex-matched healthy controls using pulse wave analysis, a technique that measures peripheral arterial pressure waveforms and generates corresponding central aortic waveforms. This allows determination of the augmentation of central pressure resulting from wave reflection and augmentation index, a measure of vessel stiffness. Metabolic parameters were also measured. The serum calcium level among PHPT subjects was (mean +/- SD) 2.74+/-0.14 mmol/L. pulse wave analysis showed that both augmentation and the augmentation index were significantly higher in the PHPT group vs. controls [16+/-5 vs. 10+/-4 mm Hg (P < 0.001) and 36+/-9% vs. 25+/-6% (P < 0.001)] despite comparable brachial systolic pressures between groups (136+/-13 vs. 134+/-18 mm Hg). Patients with PHPT had higher fasting serum insulin levels [median (range), 15.8 (7.4-39.4) vs. 11.6 (5.1-23) mU/L; P < 0.05] and triglyceride (1.6+/-0.6 vs. 1.2+/-0.4 mmol/L; P < 0.05), but lower high density lipoprotein cholesterol (1.4+/-0.4 vs. 1.6+/-0.3 mmol/L; P < 0.05). These data indicate that subjects with mild PHPT (calcium, <3.0 mmol/L) have increased arterial stiffness, as evidenced by higher augmentation of central aortic pressures. Enhanced vessel stiffness may arise from a combination of structural and functional vascular changes due to hypercalcemia and/or metabolic abnormalities. Increased vascular stiffness in subjects with PHPT may account in part for the increased cardiovascular risk in this group." @default.
- W2044897750 created "2016-06-24" @default.
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- W2044897750 date "2000-10-01" @default.
- W2044897750 modified "2023-10-10" @default.
- W2044897750 title "Augmentation of Central Arterial Pressure in Mild Primary Hyperparathyroidism" @default.
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- W2044897750 doi "https://doi.org/10.1210/jcem.85.10.6880" @default.
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