Obesity modifies the relationship between ambulatory blood pressure and natriuresis in children.

Background: The objective in the present study was to evaluate if obesity beginning in the first two decades of life influences the relationship between ambulatory blood pressure and urinary sodium excretion.

Design And Methods: Eighty-five obese and 88 non-obese children aged 3-19 years were included in the study. For each subject, a 24h ambulatory blood pressure monitoring and a complete urine collection were simultaneously performed according to the protocols designed.

Factors related to quality of ambulatory blood pressure monitoring in a pediatric population.

To assess the factors related to the quality of ambulatory blood pressure monitoring in a pediatric population, we performed 24-h ambulatory blood pressure monitorings on 333 unselected children aged 3 to 18 years using a Spacelabs 90207 monitor. For each individual, the percentages of valid measurements (ratio between valid and total number of measurements, 76.4% +/-15.

Radius hypoplasia, radial palsy, and aplasia cutis due to amniotic band syndrome.

Amniotic band syndrome is one of the many causes of aplasia cutis congenita. It is usually seen as a constriction band surrounding a limb or as a membrane that adheres to some part of the body. This syndrome can be associated with various malformations.

[Circadian rhythms variability of arterial pressure: methodological aspects for the measurement].

Background: To study the differences among the methods used for estimating daytime and nighttime ambulatory blood pressure values, and to analyze their determinant factors.

Subjects And Methods: In 402 individuals mean values of systolic and diastolic blood pressure (SBP and DBP) during 24 h, daytime and nighttime, were calculated by three different methods: a) real-time, following a minidiary; b) long-time, having a nighttime period from 23:00 to 07:00 h, and a daytime one from 08:00 to 22:00 h, and c) short-time, having a nighttime period from midnight to 6:00 h, and a daytime one from 08:00 to 22:00 h.

Results: Daytime mean values of SBP and DBP were similar for the three methods.

The impact of obesity and body fat distribution on ambulatory blood pressure in children and adolescents.

To assess the relationship between obesity, body fat distribution, and blood pressure in children and adolescents, various measures of obesity and the waist-to-hip circumference ratio were related to casual and ambulatory blood pressure as measured using a SpaceLabs 90207 monitor during a regular school day. Seventy obese and 70 nonobese children aged 6 to 16 years were included in the study. Regardless of the time period analyzed (24 h, daytime, or nighttime), ambulatory blood pressure and casual blood pressure were significantly higher among the obese children.