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Revista argentina de cardiología

versión On-line ISSN 1850-3748

Resumen

PARAGANO, Antonio J et al. Correlation between Metabolic Syndrome and Its Components with Pulse Pressure in Persons without Apparent Disease. Rev. argent. cardiol. [online]. 2010, vol.78, n.3, pp. 215-221. ISSN 1850-3748.

Background Pulse pressure depends mostly on arterial wall stiffness. Several studies have focused on the fact that many factors, including the metabolic syndrome or its components, interact to impact on great vessels elastic properties, increasing arterial wall stiffness. Objective To evaluate the influence of the metabolic syndrome and its components on pulse pressure in persons without any apparent disease. Material and Methods A total of 1.155 subjects without demonstrable disease were randomly selected. The metabolic variables defining metabolic syndrome (ATP III) were recorded: fasting HDL-cholesterol  ≤40/50 mg/dl (men/women), fasting triglycerides≥150 mg/dl, fasting glycemia ≥100 mg/dl, waist circumference ≥102/88 cm (men/women) and systolic/diastolic blood pressure ≥130/85 mm Hg. Patients' pulse pressure values were compared among different groups according to gender and age. The frequency of the metabolic syndrome components was determined and pulse pressure was adjusted by gender, age and all the components using multiple linear regression analysis. The adjusted value of pulse pressure corresponding to each metabolic syndrome component was determined and compared to that of normal subjects. Finally, adjusted pulse pressure was calculated according to the possible combinations of three factors or greater (diagnostic criteria of metabolic syndrome) and was compared with that of individuals without any component of the metabolic syndrome. Results General characteristics of the 1.155 individuals: men 62%, age 38±9 years (range 20-66), waist circumference 89±13 cm, triglycerides 107±74 mg/dl, glycemia 82±16 mg/dl, HDL-cholesterol 48±13 mg/dl, systolic blood pressure 124±14 mm Hg, diastolic blood pressure 78±9 mm Hg, pulse pressure 46±9 mm Hg. Age: 38±9 years in men (n=712) and 37±9 years in women (n=443); p=ns. Pulse pressure was 48±8 mm Hg in men versus 43±9 mm Hg in women; p<0.001. Influence of age on pulse pressure: 45±8 in individuals <35 years versus 47±9 in ≥35 years; p<0.001. Frequency of metabolic syn- drome components: waist circumference ≥102/88 cm: 18%, glycemia  ≥100 mg/dl: 7%, triglycerides  ≥150 mg/dl: 17%, HDL-cholesterol ≤40/50 mg/dl: 45%, systolic blood pressure≥130 mm Hg: 40%, diastolic blood pressure ≥85 mm Hg: 16%. When pulse pressure adjusted by each component of the metabolic syndrome was compared to that of controls, the following values were obtained: waist circumference≥102/88 cm: 48±4 versus 46±3, glycemia ≥100 mg/dl: 52±5 versus 46±3, triglycerides ≥150 mg/dl: 48±3 versus 46±4, HDL-cholesterol ≤40/50 mg/dl: 44±3 versus 47±3; systolic blood pressure ≥130 mm Hg: 48±4 versus 45±3; diastolic blood pressure ≥85 mm Hg: 48±5 versus 46±3, all p<0.001. Finally, adjusted pulse pressure according to the possible combinations of three factors or greater was calculated and compared with that of individuals without any component of the metabolic syndrome: 49±5 versus 46±3, p<0,001. Conclusions The metabolic syndrome and/or its components induce pulse pressure elevation, except for HDL-cholesterol. This effect seems to be independent of age, gender and the eventual interaction of the variables analyzed.

Palabras llave : Metabolic Syndrome; Pressure; Arterial Pulse; Hypertension; Risk Factors.

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