The global epidemic of obesity in childhood continues to evolve and threaten future health and life expectancy primarily due to the increased incidence of cardiovascular disease. Obesity is strongly related to high blood pressure (hypertension) and both conditions pose a risk for target organ damage, which can follow a subject from childhood into adult life. The AORTA study will investigate central hemodynamics and organ damage in 100 obese children and adolescents in order to gain insight to the complex interplay of hypertension, obesity and subclinical damage in order to intensify more precise prevention, thereby reducing the future development of cardiovascular disease.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
100
Treatment protocol. The Children's Obesity Clinic Department of Paediatrics Holbaek Hospital, University of Copenhagen Denmark
Division of Cardiology, Department of Medicine, Holbaek Hospital, University of Copenhagen
Holbæk, Denmark
RECRUITINGThe Children's Obesity Clinic, Department of Paediatrics, Holbaek Hospital, University of Copenhagen
Holbæk, Denmark
RECRUITINGCentral Blood Pressure
Obtained by the SphygmoCor Device, software version 9, AtCor Medical, Australia.
Time frame: one year follow up
Pulse Wave velocity
Measured in meters per second.
Time frame: one year follow up
Ambulatory Blood Pressure Monitoring and Clinic Blood Pressure
Measured in milimeters of mercury (mm Hg). Analysed into Blood Pressure standard deviation scores (BP SDS). Ambulatory Blood Pressure Monitoring (ABPM) is analysed into Amulatory Arterial Stiffness Index (AASI). ASSI is 1 minus the correlation coefficient when the Systolic Blood Pressure is plottet agiant the diastolic Blood Pressure from a ABPM.
Time frame: one year follow up
Heart Rate variability
Time frame: one year follow up
Metabolic and Cardiovascular Blood Samples
Time frame: one year follow up
Urine Albumine-Creatinine Ratio (UACR)
Microalbuminuria (MAU) defined by urine albumine-creatinine ratio (UACR) ≥ 3,5 mg/mmol (women) and 2,5 mg/mmol (men). Mean of two morning spot urine samples.
Time frame: one year follow up
Echocardiography and ultrasound of aortic wall distensibility
Time frame: one year follow up
Electrocardiography
Conventional 12 lead electrocardiography (ECG). Analysis of: * Heart rate (beats per minute) * P waves, QRS waves, ST segment and T waves (durations: miliseconds, amplitude: milimeters/Voltage) * Intervals: PQ, PR, QRS, ST, T waves (miliseconds) * Configuration of the T wave.
Time frame: one year follow up
Dual energy X-ray absorptionmetry (DEXA scan)
A full body DEXA scan gives precise knowlegde of the body fat mass and fat free mass. Fat mass can be converted into fat mass index and fat free mass can be converted into fat free mass index, besides BMI standard deviation score (BMI SDS). A DEXA scan also gives information on bone mineral density (BMD), a parameter of bone status, and regional estimates: truncus, abdomen, thorax, arms and legs.
Time frame: one year follow up
Anthropometric measures
Height, Waist, Weight, BMI (weight/height²)
Time frame: one year follow up
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