Objective: To evaluate the effect of hormonal replacement therapy (HRT) on
blood pressure (BP) in postmenopausal hypertensive women. Methods: Sixty wo
men affected by hypertension were enrolled and randomized in two groups of
treatment: transdermal continuous HRT in a sequential regimen (group A) and
placebo (group P). At baseline, after 3 and 6 months of treatment, the EP
with standard sphygmomanometer and with 24-h ambulatory recording method wa
s evaluated in two periods (from day 10 through day 16 of the cycle and fro
m day 20 through day 27 of the cycle). At the same time, we also evaluated
total cholesterol, LDL-c, HDL-c, triglycerides, and fibrinogen levels. Resu
lts: After 3 and 6 months of treatment, no significant variations of systol
ic and diastolic BP measured with standard sphygmomanometer were detected i
n both groups. On the contrary, in group A in comparison with basal values
and group P, and without difference between the two phases of treatment, th
e 24-h recording showed a significant (P < 0.05) decrease in BP. No signifi
cant variations were detected in group P versus baseline. In particular, we
observed in group A at 3 months of treatment a significant (P < 0.05) decr
ease only in daytime BP in comparison with basal values and group P, withou
t difference between the two phases of treatment. Indeed, the decrease in d
aytime BP was significant (P < 0.05) for both systolic and diastolic BP. At
3 and 6 months a significant (P < 0.05) decrease in total cholesterol, LDL
-c and fibrinogen levels was detected in group A versus baseline and group
P. HDL-c and triglyceride concentrations showed no significant variations.
Conclusions: The transdermal HRT induces a significant reduction of BP valu
es and a favorable metabolic action in postmenopausal hypertensive patients
. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.