Repositório Digital

A- A A+

Association between different measurements of blood pressure variability by ABP monitoring and ankle-brachial index

.

Association between different measurements of blood pressure variability by ABP monitoring and ankle-brachial index

Mostrar registro completo

Estatísticas

Título Association between different measurements of blood pressure variability by ABP monitoring and ankle-brachial index
Autor Wittke, Estefania Inez
Fuchs, Sandra Cristina Pereira Costa
Fuchs, Flávio Danni
Moreira, Leila Beltrami
Ferlin, Elton Luiz
Cichelero, Fábio Tremea
Moreira, Carolina Medaglia
Neyeloff, Jeruza Lavanholi
Moreira, Marina Beltrami
Gus, Miguel
Abstract Background: Blood pressure (BP) variability has been associated with cardiovascular outcomes, but there is no consensus about the more effective method to measure it by ambulatory blood pressure monitoring (ABPM). We evaluated the association between three different methods to estimate BP variability by ABPM and the ankle brachial index (ABI). Methods and Results: In a cross-sectional study of patients with hypertension, BP variability was estimated by the time rate index (the first derivative of SBP over time), standard deviation (SD) of 24-hour SBP; and coefficient of variability of 24-hour SBP. ABI was measured with a doppler probe. The sample included 425 patients with a mean age of 57 ± 12 years, being 69.2% women, 26.1% current smokers and 22.1% diabetics. Abnormal ABI (≤ 0.90 or ≥ 1.40) was present in 58 patients. The time rate index was 0.516 ± 0.146 mmHg/min in patients with abnormal ABI versus 0.476 ± 0.124 mmHg/min in patients with normal ABI (P = 0.007). In a logistic regression model the time rate index was associated with ABI, regardless of age (OR = 6.9, 95% CI = 1.1- 42.1; P = 0.04). In a multiple linear regression model, adjusting for age, SBP and diabetes, the time rate index was strongly associated with ABI (P < 0.01). None of the other indexes of BP variability were associated with ABI in univariate and multivariate analyses. Conclusion: Time rate index is a sensible method to measure BP variability by ABPM. Its performance for risk stratification of patients with hypertension should be explored in longitudinal studies.
Contido em BMC cardiovascular disorders. London. Vol. 10 (Nov. 2010), p. 55 [6 p.]
Assunto Hipertensão
Índice tornozelo-braço
Monitorização ambulatorial da pressão arterial
Pressão arterial
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/110017
Arquivos Descrição Formato
000770606.pdf (194.1Kb) Texto completo (inglês) Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.