Abstract
It has been reported an association between a decreased nocturnal blood pressure(BP) dip and target organ damage. Dipper condition can change in time. We studied the differences in cardiovascular profiles between two groups of subjects older than 65 years whose BP were recorded with spacelabs 902007, every 15 minutes, night and day, awake periods were identified from diary information. Dipper condition was defined as difference between diurnal SBP and nocturnal SBP >= 10 mmHg and difference between diurnal DBP and nocturnal DBP >= 5 mmHg. Two records were made with and interval of 2.8 +/- 0.4 years. Cardiovascular profile includes: biochemical parameters (glycemia, cholesterol, creatinine, fibrinogen) body mass index, BP casual and ABPM measurements, left ventricular hypertrophy and carotid wall measurements. When dipper condition was analysed 74 pairs of records were found. Fifty three (71%) had the same condition, dipper and non-dipper in time, 12 changed towards dipper and 9 changed towards non-dipper. When cardiovascular profiles were compared there were no differences between listed variables in two groups: changed and unchanged dipper condition except for diurnal SBP that was lightly higher in people with changing condition.In conclusion, dipper or non-dipper condition seems not being related with target organ damage in the elderly.
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