Author/Editor		Dolenc, Primož; Jezeršek, Pavle; Accetto, Rok; Brguljan, Jana; Salobir, Barbara
Title		Influence of activities and emotional stress on ambulatory blood pressure
Type		članek
Source		J Cardiovasc Diagn P
Vol. and No.		Letnik 13, št. 4
Publication year		1996
Volume		str. 243-7
Language		eng
Abstract		The influence of daily activities and emotional stress on ambulatory blood pressure (ABP) monitoring in two groups of patients is described. Sixty-seven consecutive patients were divided into two groups according to their conventional blood pressure (BP) levels: the hypertensive group and white coat hypertension group. Both groups were not previously treated with antihypertensive drugs. All patients underwent 24-h ABP monitoring and marked their activity and mood at the time of measurement in a diary. The Spacelabs 90202 ABP oscillometric monitors (Spacelabs, Inc.) were used. In the hupertensive group, 66% of patients were hypertensive (24 h average 144+- 22/88 +- 14 mm Hg), while in the white coat hypertension group 25% of ABP monitorings were hypertensive (128 +- 17/80 +- 13 mm Hg). Diary data were analyzed with the multiple regression analysis to evaluate the quantitative effects of activities and mood on the variability of BP. The standardiyed BP values of each patient were used. Statistical analysis accounted for 37.8 and 32.4% of variability for the systolic BP in the hypertensive and white coat hypertension group and for 38.6 and 33.8% of diastolic BP, respectively. Only a minor part of BP variability was explained with regular cyclic functions (the circadian rhythm). Typically 8 to 9 independent covariates entered the stepwise multiple regression analysis. The most important covariates of BP in both groups were body position and location of patient ("at job," "outside"). Different activities and mood of the patient influence ABP. It is important to consider various levels of activity and emotional stress in the evaluation of ABP monitoring.
Descriptors		BLOOD PRESSURE MONITORING, AMBULATORY HYPERTENSION