[Short term blood pressure variability and baroreflex sensitivity in mild and moderate hypertensive patients "dipper and non dipper"].
OBJECTIVE
To compare heart rate (HR) and blood pressure (BP) variability in hypertensive patients with or without a fall in BP during the night.


METHODS
33 mild to moderato hypertensive patients, mean age 45 +/- 15 years, underwent an echocardiogram, a 24-hr ambultory BP monitoring (ABPM), and a 24-hr ECG monitoring. In addition, a continuous BP recording over 15 minutes was performed between 9 and 11 a.m. both in supine and standing positions, by using digital plethysmography (Finapres device).


METHODS
non parametric tests.


RESULTS
[table: see text]


CONCLUSIONS
In non dippers, morning BP and HR low-frequency oscillations are shifted to a lower level, as compared to dippers. This characteristic is associated with a reversed circadian pattern of sympathetic activity.
Herpin
D
D
Service de cardiologie B, CHRU Poitiers.
Ragot
S
S
Le Hénaff
J
J
Raud-Raynier
P
P
Siché
J P
JP
Mallion
J M
JM
Demange
J
J
D000328:Adult; D017704:Baroreflex; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory; D002940:Circadian Rhythm; D015716:Electrocardiography, Ambulatory; D005260:Female; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010991:Plethysmography / Q000295:instrumentation / Q000379:methods; D011187:Posture; D012146:Rest; D012680:Sensitivity and Specificity
Variabilité tensionnelle à court terme et sensibilité du baroréflexe chez l'hypertendu léger à modéré "dipper et non dipper".