Use este identificador para citar ou linkar para este item: http://repositorio.ufes.br/handle/10/645
Título: Ambulatory blood pressure and Doppler echocardiographic indexes of borderline hypertensive men presenting an exaggerated blood pressure response during dynamic exercise
Autor(es): Vieira, Fernando Luiz Herkenhoff
Vasquez, Elisardo C. (Elisardo Corral)
Mill, José Geraldo
Lima, E. G.
Palavras-chave: Ecocardiografia Doppler
Hipertensão borderline
Pressão arterial
Monitorização ambulatorial da pressão arterial
Cardiovascular reactivity
Laboratory stress test
Doppler echocardiography
Borderline hypertension
Blood pressure monitoring, ambulatory
Data do documento: Out-2001
Citação: HERKENHOFF, F. L. et al. Ambulatory blood pressure and Doppler echocardiographic indexes of borderline hypertensive men presenting an exaggerated blood pressure response during dynamic exercise. Braz J Med Biol Res, Ribeirão Preto, v. 34, n. 10, p. 1285-1293, out. 2001. Disponível em: <http://www.scielo.br/pdf/bjmbr/v34n10/3705.pdf>. Acesso em: 01 mar. 2011.
Resumo: Borderline hypertension (BH) has been associated with an exaggerated blood pressure (BP) response during laboratory stressors. However, the incidence of target organ damage in this condition and its relation to BP hyperreactivity is an unsettled issue. Thus, we assessed the Doppler echocardiographic profile of a group of BH men (N = 36) according to office BP measurements with exaggerated BP in the cycloergometric test. A group of normotensive men (NT, N = 36) with a normal BP response during the cycloergometric test was used as control. To assess vascular function and reactivity, all subjects were submitted to the cold pressor test. Before Doppler echocardiography, the BP profile of all subjects was evaluated by 24-h ambulatory BP monitoring. All subjects from the NT group presented normal monitored levels of BP. In contrast, 19 subjects from the original BH group presented normal monitored BP levels and 17 presented elevated monitored BP levels. In the NT group all Doppler echocardiographic indexes were normal. All subjects from the original BH group presented normal left ventricular mass and geometrical pattern. However, in the subjects with elevated monitored BP levels, fractional shortening was greater, isovolumetric relaxation time longer, and early to late flow velocity ratio was reduced in relation to subjects from the original BH group with normal monitored BP levels (P<0.05). These subjects also presented an exaggerated BP response during the cold pressor test. These results support the notion of an integrated pattern of cardiac and vascular adaptation during the development of hypertension.
URI: http://repositorio.ufes.br/handle/10/645
ISSN: 1678-4510
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