Diastolic pressure underestimates age-related hemodynamic impairment
| Autor: | Luis Camera, F Vasvari, R Limansky, J. Tessler, Jorge G. Farías, José Alfie, Carlos R. Galarza, Mario I Cámera, Gabriel Waisman, Luis M. Mayorga, M del Río |
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| Rok vydání: | 1997 |
| Předmět: |
Adult
Male medicine.medical_specialty Aging Adolescent Systolic hypertension Systole Diastole Diastolic Hypertension Hemodynamics Blood Pressure Internal medicine Internal Medicine Prevalence Medicine Humans Antihypertensive Agents Aged Aged 80 and over business.industry Stroke volume Middle Aged medicine.disease Pulse pressure Surgery medicine.anatomical_structure Blood pressure Cross-Sectional Studies Hypertension Vascular resistance Cardiology Female business |
| Zdroj: | Hypertension (Dallas, Tex. : 1979). 30(4) |
| ISSN: | 0194-911X |
| Popis: | Abstract It has been hypothesized that as large arteries become more rigid with age, the pattern of hypertension changes from diastolic to systolic. Thus, diastolic blood pressure (DBP) may lose its ability to reflect the increase in vascular resistance with age. To assess this, we studied the age-related changes in blood pressure pattern and its steady-state and pulsatile determinants. We performed an epidemiological analysis based on a national survey of 10 462 subjects from Argentina. A hemodynamic analysis (impedance cardiography) was then carried out in 636 consecutive hypertensive patients (age, 25 to 74 years). Whereas the rate of increment in the prevalence of mild to moderate hypertension (MMH) reached a plateau after the sixth decade, isolated and borderline systolic forms of hypertension began a steep and sustained rise. Among patients with MMH, DBP remained stable from the third to the seventh decade, whereas SBP maintained a sustained increase. Despite similar DBP, the systemic vascular resistance index increased 47% ( P P P |
| Databáze: | OpenAIRE |
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