PP.15.03

Abstract

Objective: Determine in hypertensive patients previously diagnosed by performing 24-hours ambulatory blood pressure monitoring (ABPM) which are the main change related to measurement of systolic and diastolic blood pressure (BP) daytime and nightime and other associated variables such as variability, load and circadian pattern of BP.Design and method: ABPM was performed in 259 untreated hypertensive patients (UHP) with mean age of 48.94 ± 14.06 years, 36.6% female, BMI: 29.72 ± 6.24 Kg/m2, using MOBIL-O-GRAPH system. The day and night systolic and diastolic indices of blood pressure variability (BPV) greater than 15 and greater than 12 mmHg, respectively, was defined as increased. BP load were high when 30% of systolic and/or diastolic readings exceed BP levels greater than 140/90 mmHg by day and greater than 120/80 mmHg at night. The classification of circadian pattern of BP was performed using ESH recommendations. Results: The increase of diastolic BP, diastolic load and indices of systolic BPV were the main alteration of variables hemodynamic (Table 1), moreover the circadian pattern more frequent for systolic BP was non - dipper and the diastolic BP was dipper. Conclusions: The Andean population had a higher prevalence in the alteration of diastolic hemodynamic variable except the variability and circadian pattern of diastolic BP but chronologically the patients had a greater increase in pressures, load and indices of BPV at night.