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[Ambulatory blood pressure monitoring in normal adolescents]
1Instituto da Criança e Liga de Hipertensão, Hospital das Clínicas da FMUSP.
Purpose:
To evaluate technical aspects of ambulatory blood pressure monitoring (ABPM) in normal adolescents.
Methods:
Forty five normal adolescents (27 female), 10-18 years old.
Results:
ABPM recordings showed a mean of 90% successful readings; 30% of the patients complained of sleep disruption related to the functioning of the ABPM monitor; the mean systolic, diastolic and heart rate fall during sleep was 13%, 23% and 24% respectively; the mean systolic and diastolic blood pressure load, while awake, was in male adolescents 25.4 +/- 27.7% and 11.8 +/- 14.6%, and in female adolescents, 17.5 +/- 18.7% and 11.8 +/- 11.4%, respectively; the mean systolic and diastolic blood pressure load, while asleep, was in male adolescents 15.4 +/- 22.9% and 2.8 +/- 4.9% and, in female adolescents, 10.5 +/- 18.2% and 1.8 +/- 2.7%, respectively; the mean diastolic values of the first two hours of recording were higher than the ones obtained during the rest of the hours of recording while awake; different mean systolic, diastolic and heart rate values were found during the afternoon and nocturnal sleep periods.
Conclusion:
ABPM was well accepted by the adolescent population, with good technical results.