Arterial stiffness and blood pressure self-measurement with loaned equipment.
BACKGROUND
A cross-sectional study was carried out in 415 hypertensive and normotensive subjects to determine the correlation between loaned self-measurement blood pressure (LSEM), arterial stiffness, and the different factors that contribute to it.


METHODS
The LSEM model consists of lending a number of sphygmomanometers, property of the clinic, to patients for 3-day periods. Arterial stiffness was evaluated using the carotid-to-femoral pulse wave velocity (PWV), using an automatic apparatus. To determine the importance of each of these factors, a multiple linear regression analysis was carried out.


RESULTS
Of the total number of patients, 78% were women, the average age was 57 +/- 12 years, 55.8% were hypertensive, and 38.8% were diabetic. The PWV average for the whole group was 12.1 +/- 4.2 m/sec. The correlation coefficients between the PVW and the self-measurements were 0.49 (P <.001) for the pulse pressure, and 0.46 (P <.001) for the systolic blood pressure (BP), respectively. Both represented 13.0 % of the total variation. The diastolic BP obtained by self-measurement and the serum creatinine values also had an effect on the stiffness, with 2.3 % (P =.05) each one.


CONCLUSIONS
The pulse pressure readings with self-measurement correlate better with the arterial stiffness, compared with the readings taken in the office.
Calvo-Vargas
César
C
Hospital Civil Juan I. Menchaca, University of Guadalajara, Internal Medicine Department, Guadalajara, Mexico. uninvest_calvo@hotmail.com
Padilla-Rios
Victoria
V
Meza-Flores
Alicia
A
Vazquez-Linares
Graciela
G
Troyo-Sanromán
Rogelio
R
Cerda
Arturo Panduro
AP
Asmar
Roland
R
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000097:blood; D001783:Blood Flow Velocity / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology*; D018660:Blood Pressure Monitoring, Ambulatory; D003404:Creatinine / Q000097:blood; D003430:Cross-Sectional Studies; D003971:Diastole / Q000502:physiology; D018450:Disease Progression; D005260:Female; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D013223:Statistics as Topic; D013599:Systole / Q000502:physiology; D014655:Vascular Resistance / Q000502:physiology*
D015415:Biomarkers; D003404:Creatinine