Blood Pressure and Subclinical Organ Damage

Study Overview
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Brief Summary
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Background: The purpose of this study is to analyze the relationship between central and peripheral blood pressure (clinic and ambulatory) with vascular structure and function, assessed by carotid intima-media thickness (IMT), artery venous retinal index, pulse wave velocity (PWV) and ankle-brachial index in patients with diabetes type 2 and without diabetes type 2. Develop and validate a software to measure the retinal vessels and to estimate arterio-venous index automatically. Methods/design: The investigators will Perform a coss-sectional study with control group, with follow-up of 4 years in primary care. The study population will be diabetic type 2 patients with a control group without diabetes mellitus. The investigators will include by consecutive sampling 300 patients between 34 and 75 and without previous cardiovascular disease, half of each group. Main measurements: age, sex, height, weight and waist circumference. Lipids, creatinine, microalbuminuria, blood glucose, HbA1C, insulin, fibrinogen, hs-CRP and markers of endothelial dysfunction. Clinic and ambulatory blood pressure (MAPA). Ultrasonography to assess carotid IMT, retinography to assess arterio-venous ratio. ECG to evaluate left ventricular hypertrophy, ankle-brachial index and morphology analysis (PWA) and pulse wave velocity (PWV) in Sphigmocor System. Discussion: The investigators provide information regarding various parameters derived from MAPA and pulse wave analysis of with target organ damage, especially with the vascular structure and function assessed by IMT and PWV and endothelial dysfunction in patients with diabetes type 2 and without this disease. The investigators also hope to demonstrate the usefulness of the tool developed for automatic evaluation of retinal vascularization in the early detection of abnormalities of vascular structure and function and the prognosis of cardiovascular disease in the medium term.

Official Title
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Central and Peripheral Blood Pressure and Its Relation With Vascular Target Organ Damage in Carotid, Retinal and Arterial Stiffness. Developed and Validation of a Tool

Conditions
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Diabetes Mellitus

Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Patients aged 34 years or more but less than 75 years, with and without type 2 diabetes. Exclusion criteria: Patients who fail to meet the requirements of the protocol (mental disorders and / or cognitive uncooperative, education and understanding limitations), Patients with ischemic heart disease, cerebrovascular disease or other atherosclerotic disease Patients who are participating or will participate in a clinical trial during the study Patients with serious comorbidity that might endanger his life in the next 12 months.

Ages Eligible for Study
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Minimum Age: 34 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| subclinical organ damage |  | december, 1 2013 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Carotid Artery Diseases, Blood Pressure, Blood Pressure Monitoring, Ambulatory, Peripheral Vascular Diseases, Retinal Vessels