Increased ambulatory arterial stiffness index in obese children.

Saner, Christoph; Simonetti, Giacomo; Wühl, Elke; Mullis, Primus-Eugen; Janner, Marco (2015). Increased ambulatory arterial stiffness index in obese children. Atherosclerosis, 238(2), pp. 185-189. Elsevier 10.1016/j.atherosclerosis.2014.12.009

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OBJECTIVE

Altered arterial stiffness is a recognized risk factor of poor cardiovascular health. Ambulatory arterial stiffness index (AASI, defined as one minus the regression slope of diastolic on systolic blood pressure values derived from a 24 h arterial blood pressure monitoring, ABPM) is an upcoming and readily available marker of arterial stiffness. Our hypothesis was that AASI is increased in obese children compared to age- and gender matched healthy subjects.

METHODS

AASI was calculated from ABPM in 101 obese children (BMI ≥ 1.88 SDS according to age- and sex-specific BMI charts), 45% girls, median BMI SDS 2.8 (interquartile range (IQR) 2.5-3.4), median age 11.5 years (9.1-13.4) and compared with an age and gender matched healthy control group of 71 subjects with median BMI SDS 0.0 (-0.8-0.5). Multivariate regression analysis was applied to identify significant independent factors explaining AASI variability in this population.

RESULTS

AASI was significantly higher in obese children compared to controls (0.388 (0.254-0.499) versus 0.190 (0.070-0.320), p < 0.0001), but blood pressure values were similar. In a multivariate analysis including obese children only, AASI was independently predicted by 24-h systolic blood pressure SDS (p = 0.012); in a multivariate analysis including obese children and controls BMI SDS and pulse pressure independently influenced AASI (p < 0.001).

CONCLUSIONS

This study shows that AASI, a surrogate marker of arterial stiffness, is increased in obese children. AASI seems to be influenced by BMI and pulse pressure independently of systolic and diastolic blood pressure values, suggesting that other factors are involved in increased arterial stiffness in obese children.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Unit Childrens Hospital > Forschungsgruppe Endokrinologie / Diabetologie / Metabolik (Pädiatrie)
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine
04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Nephrology and Hypertension

UniBE Contributor:

Saner, Christoph; Simonetti, Giacomo; Mullis, Primus-Eugen and Janner, Marco

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0021-9150

Publisher:

Elsevier

Language:

English

Submitter:

André Schaller

Date Deposited:

24 Mar 2015 09:31

Last Modified:

29 Oct 2015 10:14

Publisher DOI:

10.1016/j.atherosclerosis.2014.12.009

PubMed ID:

25528426

Uncontrolled Keywords:

Ambulatory arterial stiffness index, Arterial stiffness, Blood pressure, Body mass index, Cardiovascular risk, Children, Obesity

BORIS DOI:

10.7892/boris.65296

URI:

https://boris.unibe.ch/id/eprint/65296

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